331 files changed, 8635 insertions, 5583 deletions

diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index b364da70ff28..dfebdbe7440e 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -175,7 +175,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
         if (!wnames)
                 return ERR_PTR(-ENOMEM);
 
-        for (d = dentry, i = n; i >= 0; i--, d = d->d_parent)
+        for (d = dentry, i = (n-1); i >= 0; i--, d = d->d_parent)
                 wnames[i] = (char *) d->d_name.name;
 
         clone = 1;
@@ -183,7 +183,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
         while (i < n) {
                 l = min(n - i, P9_MAXWELEM);
                 fid = p9_client_walk(fid, l, &wnames[i], clone);
-                if (!fid) {
+                if (IS_ERR(fid)) {
                         kfree(wnames);
                         return fid;
                 }
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index fbb12dadba83..9b0f0222e8bb 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -3,7 +3,7 @@
  *
  *  This file contains functions assisting in mapping VFS to 9P2000
  *
- *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ *  Copyright (C) 2004-2008 by Eric Van Hensbergen <ericvh@gmail.com>
  *  Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -31,7 +31,6 @@
 #include <linux/idr.h>
 #include <net/9p/9p.h>
 #include <net/9p/transport.h>
-#include <net/9p/conn.h>
 #include <net/9p/client.h>
 #include "v9fs.h"
 #include "v9fs_vfs.h"
@@ -43,11 +42,11 @@
 
 enum {
         /* Options that take integer arguments */
-        Opt_debug, Opt_msize, Opt_dfltuid, Opt_dfltgid, Opt_afid,
+        Opt_debug, Opt_dfltuid, Opt_dfltgid, Opt_afid,
         /* String options */
         Opt_uname, Opt_remotename, Opt_trans,
         /* Options that take no arguments */
-        Opt_legacy, Opt_nodevmap,
+        Opt_nodevmap,
         /* Cache options */
         Opt_cache_loose,
         /* Access options */
@@ -58,14 +57,11 @@ enum {
 
 static match_table_t tokens = {
         {Opt_debug, "debug=%x"},
-        {Opt_msize, "msize=%u"},
         {Opt_dfltuid, "dfltuid=%u"},
         {Opt_dfltgid, "dfltgid=%u"},
         {Opt_afid, "afid=%u"},
         {Opt_uname, "uname=%s"},
         {Opt_remotename, "aname=%s"},
-        {Opt_trans, "trans=%s"},
-        {Opt_legacy, "noextend"},
         {Opt_nodevmap, "nodevmap"},
         {Opt_cache_loose, "cache=loose"},
         {Opt_cache_loose, "loose"},
@@ -85,16 +81,14 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses)
         char *options;
         substring_t args[MAX_OPT_ARGS];
         char *p;
-        int option;
-        int ret;
+        int option = 0;
         char *s, *e;
+        int ret;
 
         /* setup defaults */
-        v9ses->maxdata = 8192;
         v9ses->afid = ~0;
         v9ses->debug = 0;
         v9ses->cache = 0;
-        v9ses->trans = v9fs_default_trans();
 
         if (!v9ses->options)
                 return;
@@ -106,7 +100,8 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses)
                         continue;
                 token = match_token(p, tokens, args);
                 if (token < Opt_uname) {
-                        if ((ret = match_int(&args[0], &option)) < 0) {
+                        ret = match_int(&args[0], &option);
+                        if (ret < 0) {
                                 P9_DPRINTK(P9_DEBUG_ERROR,
                                         "integer field, but no integer?\n");
                                 continue;
@@ -119,9 +114,7 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses)
                         p9_debug_level = option;
 #endif
                         break;
-                case Opt_msize:
-                        v9ses->maxdata = option;
-                        break;
+
                 case Opt_dfltuid:
                         v9ses->dfltuid = option;
                         break;
@@ -131,18 +124,12 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses)
                 case Opt_afid:
                         v9ses->afid = option;
                         break;
-                case Opt_trans:
-                        v9ses->trans = v9fs_match_trans(&args[0]);
-                        break;
                 case Opt_uname:
                         match_strcpy(v9ses->uname, &args[0]);
                         break;
                 case Opt_remotename:
                         match_strcpy(v9ses->aname, &args[0]);
                         break;
-                case Opt_legacy:
-                        v9ses->flags &= ~V9FS_EXTENDED;
-                        break;
                 case Opt_nodevmap:
                         v9ses->nodev = 1;
                         break;
@@ -185,7 +172,6 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
                   const char *dev_name, char *data)
 {
         int retval = -EINVAL;
-        struct p9_trans *trans = NULL;
         struct p9_fid *fid;
 
         v9ses->uname = __getname();
@@ -207,24 +193,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
         v9ses->options = kstrdup(data, GFP_KERNEL);
         v9fs_parse_options(v9ses);
 
-        if (v9ses->trans == NULL) {
-                retval = -EPROTONOSUPPORT;
-                P9_DPRINTK(P9_DEBUG_ERROR,
-                                "No transport defined or default transport\n");
-                goto error;
-        }
-
-        trans = v9ses->trans->create(dev_name, v9ses->options);
-        if (IS_ERR(trans)) {
-                retval = PTR_ERR(trans);
-                trans = NULL;
-                goto error;
-        }
-        if ((v9ses->maxdata+P9_IOHDRSZ) > v9ses->trans->maxsize)
-                v9ses->maxdata = v9ses->trans->maxsize-P9_IOHDRSZ;
-
-        v9ses->clnt = p9_client_create(trans, v9ses->maxdata+P9_IOHDRSZ,
-                v9fs_extended(v9ses));
+        v9ses->clnt = p9_client_create(dev_name, v9ses->options);
 
         if (IS_ERR(v9ses->clnt)) {
                 retval = PTR_ERR(v9ses->clnt);
@@ -236,6 +205,8 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
         if (!v9ses->clnt->dotu)
                 v9ses->flags &= ~V9FS_EXTENDED;
 
+        v9ses->maxdata = v9ses->clnt->msize;
+
         /* for legacy mode, fall back to V9FS_ACCESS_ANY */
         if (!v9fs_extended(v9ses) &&
                 ((v9ses->flags&V9FS_ACCESS_MASK) == V9FS_ACCESS_USER)) {
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index db4b4193f2e2..7d3a1018db52 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -1,7 +1,7 @@
 /*
  * V9FS definitions.
  *
- *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ *  Copyright (C) 2004-2008 by Eric Van Hensbergen <ericvh@gmail.com>
  *  Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -28,7 +28,6 @@
 
 struct v9fs_session_info {
         /* options */
-        unsigned int maxdata;
         unsigned char flags;    /* session flags */
         unsigned char nodev;    /* set to 1 if no disable device mapping */
         unsigned short debug;   /* debug level */
@@ -38,10 +37,10 @@ struct v9fs_session_info {
         char *options;          /* copy of mount options */
         char *uname;            /* user name to mount as */
         char *aname;            /* name of remote hierarchy being mounted */
+        unsigned int maxdata;   /* max data for client interface */
         unsigned int dfltuid;   /* default uid/muid for legacy support */
         unsigned int dfltgid;   /* default gid for legacy support */
         u32 uid;                /* if ACCESS_SINGLE, the uid that has access */
-        struct p9_trans_module *trans; /* 9p transport */
         struct p9_client *clnt; /* 9p client */
         struct dentry *debugfs_dir;
 };
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index ba4b1caa9c43..a616fff8906d 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -184,7 +184,7 @@ static const struct file_operations v9fs_cached_file_operations = {
         .open = v9fs_file_open,
         .release = v9fs_dir_release,
         .lock = v9fs_file_lock,
-        .mmap = generic_file_mmap,
+        .mmap = generic_file_readonly_mmap,
 };
 
 const struct file_operations v9fs_file_operations = {
@@ -194,5 +194,5 @@ const struct file_operations v9fs_file_operations = {
         .open = v9fs_file_open,
         .release = v9fs_dir_release,
         .lock = v9fs_file_lock,
-        .mmap = generic_file_mmap,
+        .mmap = generic_file_readonly_mmap,
 };
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 23581bcb599b..6a28842052ea 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -77,6 +77,8 @@ static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
                         res |= P9_DMSETUID;
                 if ((mode & S_ISGID) == S_ISGID)
                         res |= P9_DMSETGID;
+                if ((mode & S_ISVTX) == S_ISVTX)
+                        res |= P9_DMSETVTX;
                 if ((mode & P9_DMLINK))
                         res |= P9_DMLINK;
         }
@@ -119,6 +121,9 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
 
                 if ((mode & P9_DMSETGID) == P9_DMSETGID)
                         res |= S_ISGID;
+
+                if ((mode & P9_DMSETVTX) == P9_DMSETVTX)
+                        res |= S_ISVTX;
         }
 
         return res;
@@ -568,7 +573,7 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
         v9ses = v9fs_inode2v9ses(dir);
         dfid = v9fs_fid_lookup(dentry->d_parent);
         if (IS_ERR(dfid))
-                return ERR_PTR(PTR_ERR(dfid));
+                return ERR_CAST(dfid);
 
         name = (char *) dentry->d_name.name;
         fid = p9_client_walk(dfid, 1, &name, 1);
diff --git a/fs/Kconfig b/fs/Kconfig
index 987b5d7cb21a..d7312825592b 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -463,40 +463,18 @@ config OCFS2_DEBUG_FS
           this option for debugging only as it is likely to decrease
           performance of the filesystem.
 
-config MINIX_FS
-        tristate "Minix fs support"
-        help
-          Minix is a simple operating system used in many classes about OS's.
-          The minix file system (method to organize files on a hard disk
-          partition or a floppy disk) was the original file system for Linux,
-          but has been superseded by the second extended file system ext2fs.
-          You don't want to use the minix file system on your hard disk
-          because of certain built-in restrictions, but it is sometimes found
-          on older Linux floppy disks.  This option will enlarge your kernel
-          by about 28 KB. If unsure, say N.
+endif # BLOCK
 
-          To compile this file system support as a module, choose M here: the
-          module will be called minix.  Note that the file system of your root
-          partition (the one containing the directory /) cannot be compiled as
-          a module.
-
-config ROMFS_FS
-        tristate "ROM file system support"
-        ---help---
-          This is a very small read-only file system mainly intended for
-          initial ram disks of installation disks, but it could be used for
-          other read-only media as well.  Read
-          <file:Documentation/filesystems/romfs.txt> for details.
-
-          To compile this file system support as a module, choose M here: the
-          module will be called romfs.  Note that the file system of your
-          root partition (the one containing the directory /) cannot be a
-          module.
-
-          If you don't know whether you need it, then you don't need it:
-          answer N.
+config DNOTIFY
+        bool "Dnotify support"
+        default y
+        help
+          Dnotify is a directory-based per-fd file change notification system
+          that uses signals to communicate events to user-space.  There exist
+          superior alternatives, but some applications may still rely on
+          dnotify.
 
-endif
+          If unsure, say Y.
 
 config INOTIFY
         bool "Inotify file change notification support"
@@ -577,17 +555,6 @@ config QUOTACTL
         depends on XFS_QUOTA || QUOTA
         default y
 
-config DNOTIFY
-        bool "Dnotify support"
-        default y
-        help
-          Dnotify is a directory-based per-fd file change notification system
-          that uses signals to communicate events to user-space.  There exist
-          superior alternatives, but some applications may still rely on
-          dnotify.
-
-          If unsure, say Y.
-
 config AUTOFS_FS
         tristate "Kernel automounter support"
         help
@@ -713,7 +680,7 @@ config UDF_NLS
         depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
 
 endmenu
-endif
+endif # BLOCK
 
 if BLOCK
 menu "DOS/FAT/NT Filesystems"
@@ -896,7 +863,7 @@ config NTFS_RW
           It is perfectly safe to say N here.
 
 endmenu
-endif
+endif # BLOCK
 
 menu "Pseudo filesystems"
 
@@ -1152,7 +1119,7 @@ config BEFS_DEBUG
         depends on BEFS_FS
         help
           If you say Y here, you can use the 'debug' mount option to enable
-          debugging output from the driver. 
+          debugging output from the driver.
 
 config BFS_FS
         tristate "BFS file system support (EXPERIMENTAL)"
@@ -1263,7 +1230,7 @@ config JFFS2_FS_XATTR
           Extended attributes are name:value pairs associated with inodes by
           the kernel or by users (see the attr(5) manual page, or visit
           <http://acl.bestbits.at/> for details).
-          
+
           If unsure, say N.
 
 config JFFS2_FS_POSIX_ACL
@@ -1274,10 +1241,10 @@ config JFFS2_FS_POSIX_ACL
         help
           Posix Access Control Lists (ACLs) support permissions for users and
           groups beyond the owner/group/world scheme.
-          
+
           To learn more about Access Control Lists, visit the Posix ACLs for
           Linux website <http://acl.bestbits.at/>.
-          
+
           If you don't know what Access Control Lists are, say N
 
 config JFFS2_FS_SECURITY
@@ -1289,7 +1256,7 @@ config JFFS2_FS_SECURITY
           implemented by security modules like SELinux.  This option
           enables an extended attribute handler for file security
           labels in the jffs2 filesystem.
-          
+
           If you are not using a security module that requires using
           extended attributes for file security labels, say N.
 
@@ -1417,6 +1384,24 @@ config VXFS_FS
           To compile this as a module, choose M here: the module will be
           called freevxfs.  If unsure, say N.
 
+config MINIX_FS
+        tristate "Minix file system support"
+        depends on BLOCK
+        help
+          Minix is a simple operating system used in many classes about OS's.
+          The minix file system (method to organize files on a hard disk
+          partition or a floppy disk) was the original file system for Linux,
+          but has been superseded by the second extended file system ext2fs.
+          You don't want to use the minix file system on your hard disk
+          because of certain built-in restrictions, but it is sometimes found
+          on older Linux floppy disks.  This option will enlarge your kernel
+          by about 28 KB. If unsure, say N.
+
+          To compile this file system support as a module, choose M here: the
+          module will be called minix.  Note that the file system of your root
+          partition (the one containing the directory /) cannot be compiled as
+          a module.
+
 
 config HPFS_FS
         tristate "OS/2 HPFS file system support"
@@ -1434,7 +1419,6 @@ config HPFS_FS
           module will be called hpfs.  If unsure, say N.
 
 
-
 config QNX4FS_FS
         tristate "QNX4 file system support (read only)"
         depends on BLOCK
@@ -1461,6 +1445,22 @@ config QNX4FS_RW
           It's currently broken, so for now:
           answer N.
 
+config ROMFS_FS
+        tristate "ROM file system support"
+        depends on BLOCK
+        ---help---
+          This is a very small read-only file system mainly intended for
+          initial ram disks of installation disks, but it could be used for
+          other read-only media as well.  Read
+          <file:Documentation/filesystems/romfs.txt> for details.
+
+          To compile this file system support as a module, choose M here: the
+          module will be called romfs.  Note that the file system of your
+          root partition (the one containing the directory /) cannot be a
+          module.
+
+          If you don't know whether you need it, then you don't need it:
+          answer N.
 
 
 config SYSV_FS
@@ -1501,7 +1501,6 @@ config SYSV_FS
           If you haven't heard about all of this before, it's safe to say N.
 
 
-
 config UFS_FS
         tristate "UFS file system support (read only)"
         depends on BLOCK
@@ -1779,12 +1778,9 @@ config SUNRPC_GSS
         tristate
 
 config SUNRPC_XPRT_RDMA
-        tristate "RDMA transport for sunrpc (EXPERIMENTAL)"
+        tristate
         depends on SUNRPC && INFINIBAND && EXPERIMENTAL
-        default m
-        help
-          Adds a client RPC transport for supporting kernel NFS over RDMA
-          mounts, including Infiniband and iWARP. Experimental.
+        default SUNRPC && INFINIBAND
 
 config SUNRPC_BIND34
         bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
@@ -1835,7 +1831,7 @@ config RPCSEC_GSS_SPKM3
           If unsure, say N.
 
 config SMB_FS
-        tristate "SMB file system support (to mount Windows shares etc.)"
+        tristate "SMB file system support (OBSOLETE, please use CIFS)"
         depends on INET
         select NLS
         help
@@ -1858,8 +1854,8 @@ config SMB_FS
           General information about how to connect Linux, Windows machines and
           Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
 
-          To compile the SMB support as a module, choose M here: the module will
-          be called smbfs.  Most people say N, however.
+          To compile the SMB support as a module, choose M here:
+          the module will be called smbfs.  Most people say N, however.
 
 config SMB_NLS_DEFAULT
         bool "Use a default NLS"
@@ -1891,7 +1887,7 @@ config SMB_NLS_REMOTE
           smbmount from samba 2.2.0 or later supports this.
 
 config CIFS
-        tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
+        tristate "CIFS support (advanced network filesystem, SMBFS successor)"
         depends on INET
         select NLS
         help
@@ -1949,16 +1945,16 @@ config CIFS_WEAK_PW_HASH
           LANMAN based servers such as OS/2 and Windows 95, but such
           mounts may be less secure than mounts using NTLM or more recent
           security mechanisms if you are on a public network.  Unless you
-          have a need to access old SMB servers (and are on a private 
+          have a need to access old SMB servers (and are on a private
           network) you probably want to say N.  Even if this support
           is enabled in the kernel build, LANMAN authentication will not be
           used automatically. At runtime LANMAN mounts are disabled but
           can be set to required (or optional) either in
           /proc/fs/cifs (see fs/cifs/README for more detail) or via an
-          option on the mount command. This support is disabled by 
+          option on the mount command. This support is disabled by
           default in order to reduce the possibility of a downgrade
           attack.
- 
+
           If unsure, say N.
 
 config CIFS_XATTR
@@ -1999,7 +1995,7 @@ config CIFS_DEBUG2
            messages in some error paths, slowing performance. This
            option can be turned off unless you are debugging
            cifs problems.  If unsure, say N.
-           
+
 config CIFS_EXPERIMENTAL
           bool "CIFS Experimental Features (EXPERIMENTAL)"
           depends on CIFS && EXPERIMENTAL
@@ -2090,7 +2086,7 @@ config CODA_FS_OLD_API
           However this new API is not backward compatible with older
           clients. If you really need to run the old Coda userspace
           cache manager then say Y.
-          
+
           For most cases you probably want to say N.
 
 config AFS_FS
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 7c3d5f923da1..b5c3b6114add 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -61,7 +61,8 @@ config BINFMT_SHARED_FLAT
 
 config BINFMT_AOUT
         tristate "Kernel support for a.out and ECOFF binaries"
-        depends on X86_32 || ALPHA || ARM || M68K || SPARC32
+        depends on ARCH_SUPPORTS_AOUT && \
+                (X86_32 || ALPHA || ARM || M68K || SPARC32)
         ---help---
           A.out (Assembler.OUTput) is a set of formats for libraries and
           executables used in the earliest versions of UNIX.  Linux used
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index b36695ae5c2e..9e421eeb672b 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -20,6 +20,8 @@
 #include <linux/vfs.h>
 #include <linux/parser.h>
 #include <linux/bitops.h>
+#include <linux/mount.h>
+#include <linux/seq_file.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -30,6 +32,9 @@
 #include "dir_f.h"
 #include "dir_fplus.h"
 
+#define ADFS_DEFAULT_OWNER_MASK S_IRWXU
+#define ADFS_DEFAULT_OTHER_MASK (S_IRWXG | S_IRWXO)
+
 void __adfs_error(struct super_block *sb, const char *function, const char *fmt, ...)
 {
         char error_buf[128];
@@ -134,6 +139,22 @@ static void adfs_put_super(struct super_block *sb)
         sb->s_fs_info = NULL;
 }
 
+static int adfs_show_options(struct seq_file *seq, struct vfsmount *mnt)
+{
+        struct adfs_sb_info *asb = ADFS_SB(mnt->mnt_sb);
+
+        if (asb->s_uid != 0)
+                seq_printf(seq, ",uid=%u", asb->s_uid);
+        if (asb->s_gid != 0)
+                seq_printf(seq, ",gid=%u", asb->s_gid);
+        if (asb->s_owner_mask != ADFS_DEFAULT_OWNER_MASK)
+                seq_printf(seq, ",ownmask=%o", asb->s_owner_mask);
+        if (asb->s_other_mask != ADFS_DEFAULT_OTHER_MASK)
+                seq_printf(seq, ",othmask=%o", asb->s_other_mask);
+
+        return 0;
+}
+
 enum {Opt_uid, Opt_gid, Opt_ownmask, Opt_othmask, Opt_err};
 
 static match_table_t tokens = {
@@ -259,6 +280,7 @@ static const struct super_operations adfs_sops = {
         .put_super      = adfs_put_super,
         .statfs         = adfs_statfs,
         .remount_fs     = adfs_remount,
+        .show_options   = adfs_show_options,
 };
 
 static struct adfs_discmap *adfs_read_map(struct super_block *sb, struct adfs_discrecord *dr)
@@ -344,8 +366,8 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
         /* set default options */
         asb->s_uid = 0;
         asb->s_gid = 0;
-        asb->s_owner_mask = S_IRWXU;
-        asb->s_other_mask = S_IRWXG | S_IRWXO;
+        asb->s_owner_mask = ADFS_DEFAULT_OWNER_MASK;
+        asb->s_other_mask = ADFS_DEFAULT_OTHER_MASK;
 
         if (parse_options(sb, data))
                 goto error;
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 232c69493683..d5bd497ab9cb 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -174,7 +174,8 @@ extern void			 affs_put_inode(struct inode *inode);
 extern void                      affs_drop_inode(struct inode *inode);
 extern void                      affs_delete_inode(struct inode *inode);
 extern void                      affs_clear_inode(struct inode *inode);
-extern void                      affs_read_inode(struct inode *inode);
+extern struct inode             *affs_iget(struct super_block *sb,
+                                        unsigned long ino);
 extern int                       affs_write_inode(struct inode *inode, int);
 extern int                       affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s32 type);
 
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index f4de4b98004f..805573005de6 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -170,9 +170,11 @@ affs_remove_link(struct dentry *dentry)
                 if (!link_bh)
                         goto done;
 
-                dir = iget(sb, be32_to_cpu(AFFS_TAIL(sb, link_bh)->parent));
-                if (!dir)
+                dir = affs_iget(sb, be32_to_cpu(AFFS_TAIL(sb, link_bh)->parent));
+                if (IS_ERR(dir)) {
+                        retval = PTR_ERR(dir);
                         goto done;
+                }
 
                 affs_lock_dir(dir);
                 affs_fix_dcache(dentry, link_ino);
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index 4609a6c13fe9..27fe6cbe43ae 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -15,20 +15,25 @@
 extern const struct inode_operations affs_symlink_inode_operations;
 extern struct timezone sys_tz;
 
-void
-affs_read_inode(struct inode *inode)
+struct inode *affs_iget(struct super_block *sb, unsigned long ino)
 {
-        struct super_block      *sb = inode->i_sb;
         struct affs_sb_info     *sbi = AFFS_SB(sb);
         struct buffer_head      *bh;
         struct affs_head        *head;
         struct affs_tail        *tail;
+        struct inode            *inode;
         u32                      block;
         u32                      size;
         u32                      prot;
         u16                      id;
 
-        pr_debug("AFFS: read_inode(%lu)\n",inode->i_ino);
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        pr_debug("AFFS: affs_iget(%lu)\n", inode->i_ino);
 
         block = inode->i_ino;
         bh = affs_bread(sb, block);
@@ -154,12 +159,13 @@ affs_read_inode(struct inode *inode)
                          sys_tz.tz_minuteswest * 60;
         inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = inode->i_atime.tv_nsec = 0;
         affs_brelse(bh);
-        return;
+        unlock_new_inode(inode);
+        return inode;
 
 bad_inode:
-        make_bad_inode(inode);
         affs_brelse(bh);
-        return;
+        iget_failed(inode);
+        return ERR_PTR(-EIO);
 }
 
 int
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index a42143ca0169..2218f1ee71ce 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -208,9 +208,8 @@ affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
         affs_lock_dir(dir);
         bh = affs_find_entry(dir, dentry);
         affs_unlock_dir(dir);
-        if (IS_ERR(bh)) {
-                return ERR_PTR(PTR_ERR(bh));
-        }
+        if (IS_ERR(bh))
+                return ERR_CAST(bh);
         if (bh) {
                 u32 ino = bh->b_blocknr;
 
@@ -223,10 +222,9 @@ affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
                         ino = be32_to_cpu(AFFS_TAIL(sb, bh)->original);
                 }
                 affs_brelse(bh);
-                inode = iget(sb, ino);
-                if (!inode) {
-                        return ERR_PTR(-EACCES);
-                }
+                inode = affs_iget(sb, ino);
+                if (IS_ERR(inode))
+                        return ERR_PTR(PTR_ERR(inode));
         }
         dentry->d_op = AFFS_SB(sb)->s_flags & SF_INTL ? &affs_intl_dentry_operations : &affs_dentry_operations;
         d_add(dentry, inode);
diff --git a/fs/affs/super.c b/fs/affs/super.c
index b53e5d0ec65c..d2dc047cb479 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -113,7 +113,6 @@ static void destroy_inodecache(void)
 static const struct super_operations affs_sops = {
         .alloc_inode    = affs_alloc_inode,
         .destroy_inode  = affs_destroy_inode,
-        .read_inode     = affs_read_inode,
         .write_inode    = affs_write_inode,
         .put_inode      = affs_put_inode,
         .drop_inode     = affs_drop_inode,
@@ -123,6 +122,7 @@ static const struct super_operations affs_sops = {
         .write_super    = affs_write_super,
         .statfs         = affs_statfs,
         .remount_fs     = affs_remount,
+        .show_options   = generic_show_options,
 };
 
 enum {
@@ -271,6 +271,9 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
         unsigned long            mount_flags;
         int                      tmp_flags;     /* fix remount prototype... */
         u8                       sig[4];
+        int                      ret = -EINVAL;
+
+        save_mount_options(sb, data);
 
         pr_debug("AFFS: read_super(%s)\n",data ? (const char *)data : "no options");
 
@@ -444,7 +447,12 @@ got_root:
 
         /* set up enough so that it can read an inode */
 
-        root_inode = iget(sb, root_block);
+        root_inode = affs_iget(sb, root_block);
+        if (IS_ERR(root_inode)) {
+                ret = PTR_ERR(root_inode);
+                goto out_error_noinode;
+        }
+
         sb->s_root = d_alloc_root(root_inode);
         if (!sb->s_root) {
                 printk(KERN_ERR "AFFS: Get root inode failed\n");
@@ -461,12 +469,13 @@ got_root:
 out_error:
         if (root_inode)
                 iput(root_inode);
+out_error_noinode:
         kfree(sbi->s_bitmap);
         affs_brelse(root_bh);
         kfree(sbi->s_prefix);
         kfree(sbi);
         sb->s_fs_info = NULL;
-        return -EINVAL;
+        return ret;
 }
 
 static int
@@ -481,14 +490,21 @@ affs_remount(struct super_block *sb, int *flags, char *data)
         int                      root_block;
         unsigned long            mount_flags;
         int                      res = 0;
+        char                    *new_opts = kstrdup(data, GFP_KERNEL);
 
         pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data);
 
         *flags |= MS_NODIRATIME;
 
-        if (!parse_options(data,&uid,&gid,&mode,&reserved,&root_block,
-            &blocksize,&sbi->s_prefix,sbi->s_volume,&mount_flags))
+        if (!parse_options(data, &uid, &gid, &mode, &reserved, &root_block,
+                           &blocksize, &sbi->s_prefix, sbi->s_volume,
+                           &mount_flags)) {
+                kfree(new_opts);
                 return -EINVAL;
+        }
+        kfree(sb->s_options);
+        sb->s_options = new_opts;
+
         sbi->s_flags = mount_flags;
         sbi->s_mode  = mode;
         sbi->s_uid   = uid;
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 0cc3597c1197..b58af8f18bc4 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -512,7 +512,7 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
         key = afs_request_key(vnode->volume->cell);
         if (IS_ERR(key)) {
                 _leave(" = %ld [key]", PTR_ERR(key));
-                return ERR_PTR(PTR_ERR(key));
+                return ERR_CAST(key);
         }
 
         ret = afs_validate(vnode, key);
@@ -540,7 +540,7 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
         key_put(key);
         if (IS_ERR(inode)) {
                 _leave(" = %ld", PTR_ERR(inode));
-                return ERR_PTR(PTR_ERR(inode));
+                return ERR_CAST(inode);
         }
 
         dentry->d_op = &afs_fs_dentry_operations;
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 84750c8e9f95..08db82e1343a 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -196,10 +196,7 @@ struct inode *afs_iget(struct super_block *sb, struct key *key,
 
         /* failure */
 bad_inode:
-        make_bad_inode(inode);
-        unlock_new_inode(inode);
-        iput(inode);
-
+        iget_failed(inode);
         _leave(" = %d [bad]", ret);
         return ERR_PTR(ret);
 }
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index 5ce43b63c60e..a3510b8ba3e7 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -218,16 +218,16 @@ static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
         _enter("%p{%s},{%s:%p{%s},}",
                dentry,
                dentry->d_name.name,
-               nd->mnt->mnt_devname,
+               nd->path.mnt->mnt_devname,
                dentry,
-               nd->dentry->d_name.name);
+               nd->path.dentry->d_name.name);
 
-        dput(nd->dentry);
-        nd->dentry = dget(dentry);
+        dput(nd->path.dentry);
+        nd->path.dentry = dget(dentry);
 
-        newmnt = afs_mntpt_do_automount(nd->dentry);
+        newmnt = afs_mntpt_do_automount(nd->path.dentry);
         if (IS_ERR(newmnt)) {
-                path_release(nd);
+                path_put(&nd->path);
                 return (void *)newmnt;
         }
 
@@ -235,17 +235,16 @@ static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
         err = do_add_mount(newmnt, nd, MNT_SHRINKABLE, &afs_vfsmounts);
         switch (err) {
         case 0:
-                dput(nd->dentry);
-                mntput(nd->mnt);
-                nd->mnt = newmnt;
-                nd->dentry = dget(newmnt->mnt_root);
+                path_put(&nd->path);
+                nd->path.mnt = newmnt;
+                nd->path.dentry = dget(newmnt->mnt_root);
                 schedule_delayed_work(&afs_mntpt_expiry_timer,
                                       afs_mntpt_expiry_timeout * HZ);
                 break;
         case -EBUSY:
                 /* someone else made a mount here whilst we were busy */
-                while (d_mountpoint(nd->dentry) &&
-                       follow_down(&nd->mnt, &nd->dentry))
+                while (d_mountpoint(nd->path.dentry) &&
+                       follow_down(&nd->path.mnt, &nd->path.dentry))
                         ;
                 err = 0;
         default:
diff --git a/fs/afs/security.c b/fs/afs/security.c
index 566fe712c682..3bcbeceba1bb 100644
--- a/fs/afs/security.c
+++ b/fs/afs/security.c
@@ -95,7 +95,7 @@ static struct afs_vnode *afs_get_auth_inode(struct afs_vnode *vnode,
                 auth_inode = afs_iget(vnode->vfs_inode.i_sb, key,
                                       &vnode->status.parent, NULL, NULL);
                 if (IS_ERR(auth_inode))
-                        return ERR_PTR(PTR_ERR(auth_inode));
+                        return ERR_CAST(auth_inode);
         }
 
         auth_vnode = AFS_FS_I(auth_inode);
@@ -287,7 +287,7 @@ static int afs_check_permit(struct afs_vnode *vnode, struct key *key,
 int afs_permission(struct inode *inode, int mask, struct nameidata *nd)
 {
         struct afs_vnode *vnode = AFS_FS_I(inode);
-        afs_access_t access;
+        afs_access_t uninitialized_var(access);
         struct key *key;
         int ret;
 
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 4b2558c42213..36bbce45f44b 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -52,6 +52,7 @@ static const struct super_operations afs_super_ops = {
         .clear_inode    = afs_clear_inode,
         .umount_begin   = afs_umount_begin,
         .put_super      = afs_put_super,
+        .show_options   = generic_show_options,
 };
 
 static struct kmem_cache *afs_inode_cachep;
@@ -357,6 +358,7 @@ static int afs_get_sb(struct file_system_type *fs_type,
         struct super_block *sb;
         struct afs_volume *vol;
         struct key *key;
+        char *new_opts = kstrdup(options, GFP_KERNEL);
         int ret;
 
         _enter(",,%s,%p", dev_name, options);
@@ -408,9 +410,11 @@ static int afs_get_sb(struct file_system_type *fs_type,
                         deactivate_super(sb);
                         goto error;
                 }
+                sb->s_options = new_opts;
                 sb->s_flags |= MS_ACTIVE;
         } else {
                 _debug("reuse");
+                kfree(new_opts);
                 ASSERTCMP(sb->s_flags, &, MS_ACTIVE);
         }
 
@@ -424,6 +428,7 @@ error:
         afs_put_volume(params.volume);
         afs_put_cell(params.cell);
         key_put(params.key);
+        kfree(new_opts);
         _leave(" = %d", ret);
         return ret;
 }
diff --git a/fs/aio.c b/fs/aio.c
index 8a37dbbf3437..b74c567383bc 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -317,7 +317,7 @@ out:
 /* wait_on_sync_kiocb:
  *      Waits on the given sync kiocb to complete.
  */
-ssize_t fastcall wait_on_sync_kiocb(struct kiocb *iocb)
+ssize_t wait_on_sync_kiocb(struct kiocb *iocb)
 {
         while (iocb->ki_users) {
                 set_current_state(TASK_UNINTERRUPTIBLE);
@@ -336,7 +336,7 @@ ssize_t fastcall wait_on_sync_kiocb(struct kiocb *iocb)
  * go away, they will call put_ioctx and release any pinned memory
  * associated with the request (held via struct page * references).
  */
-void fastcall exit_aio(struct mm_struct *mm)
+void exit_aio(struct mm_struct *mm)
 {
         struct kioctx *ctx = mm->ioctx_list;
         mm->ioctx_list = NULL;
@@ -365,7 +365,7 @@ void fastcall exit_aio(struct mm_struct *mm)
  *      Called when the last user of an aio context has gone away,
  *      and the struct needs to be freed.
  */
-void fastcall __put_ioctx(struct kioctx *ctx)
+void __put_ioctx(struct kioctx *ctx)
 {
         unsigned nr_events = ctx->max_reqs;
 
@@ -397,8 +397,7 @@ void fastcall __put_ioctx(struct kioctx *ctx)
  * This prevents races between the aio code path referencing the
  * req (after submitting it) and aio_complete() freeing the req.
  */
-static struct kiocb *__aio_get_req(struct kioctx *ctx);
-static struct kiocb fastcall *__aio_get_req(struct kioctx *ctx)
+static struct kiocb *__aio_get_req(struct kioctx *ctx)
 {
         struct kiocb *req = NULL;
         struct aio_ring *ring;
@@ -533,7 +532,7 @@ static int __aio_put_req(struct kioctx *ctx, struct kiocb *req)
  *      Returns true if this put was the last user of the kiocb,
  *      false if the request is still in use.
  */
-int fastcall aio_put_req(struct kiocb *req)
+int aio_put_req(struct kiocb *req)
 {
         struct kioctx *ctx = req->ki_ctx;
         int ret;
@@ -893,7 +892,7 @@ static void try_queue_kicked_iocb(struct kiocb *iocb)
  *      The retry is usually executed by aio workqueue
  *      threads (See aio_kick_handler).
  */
-void fastcall kick_iocb(struct kiocb *iocb)
+void kick_iocb(struct kiocb *iocb)
 {
         /* sync iocbs are easy: they can only ever be executing from a 
          * single context. */
@@ -912,7 +911,7 @@ EXPORT_SYMBOL(kick_iocb);
  *      Returns true if this is the last user of the request.  The 
  *      only other user of the request can be the cancellation code.
  */
-int fastcall aio_complete(struct kiocb *iocb, long res, long res2)
+int aio_complete(struct kiocb *iocb, long res, long res2)
 {
         struct kioctx   *ctx = iocb->ki_ctx;
         struct aio_ring_info    *info;
@@ -1330,6 +1329,10 @@ static ssize_t aio_rw_vect_retry(struct kiocb *iocb)
                 opcode = IOCB_CMD_PWRITEV;
         }
 
+        /* This matches the pread()/pwrite() logic */
+        if (iocb->ki_pos < 0)
+                return -EINVAL;
+
         do {
                 ret = rw_op(iocb, &iocb->ki_iovec[iocb->ki_cur_seg],
                             iocb->ki_nr_segs - iocb->ki_cur_seg,
@@ -1348,6 +1351,13 @@ static ssize_t aio_rw_vect_retry(struct kiocb *iocb)
         if ((ret == 0) || (iocb->ki_left == 0))
                 ret = iocb->ki_nbytes - iocb->ki_left;
 
+        /* If we managed to write some out we return that, rather than
+         * the eventual error. */
+        if (opcode == IOCB_CMD_PWRITEV
+            && ret < 0 && ret != -EIOCBQUEUED && ret != -EIOCBRETRY
+            && iocb->ki_nbytes - iocb->ki_left)
+                ret = iocb->ki_nbytes - iocb->ki_left;
+
         return ret;
 }
 
@@ -1523,7 +1533,7 @@ static int aio_wake_function(wait_queue_t *wait, unsigned mode,
         return 1;
 }
 
-int fastcall io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
+int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
                          struct iocb *iocb)
 {
         struct kiocb *req;
diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h
index 8b4cca3c4705..901a3e67ec45 100644
--- a/fs/autofs/autofs_i.h
+++ b/fs/autofs/autofs_i.h
@@ -150,6 +150,7 @@ extern const struct file_operations autofs_root_operations;
 
 int autofs_fill_super(struct super_block *, void *, int);
 void autofs_kill_sb(struct super_block *sb);
+struct inode *autofs_iget(struct super_block *, unsigned long);
 
 /* Queue management functions */
 
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
index 45f5992a0957..dda510d31f84 100644
--- a/fs/autofs/inode.c
+++ b/fs/autofs/inode.c
@@ -52,11 +52,9 @@ out_kill_sb:
         kill_anon_super(sb);
 }
 
-static void autofs_read_inode(struct inode *inode);
-
 static const struct super_operations autofs_sops = {
-        .read_inode     = autofs_read_inode,
         .statfs         = simple_statfs,
+        .show_options   = generic_show_options,
 };
 
 enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto};
@@ -143,6 +141,8 @@ int autofs_fill_super(struct super_block *s, void *data, int silent)
         int minproto, maxproto;
         pid_t pgid;
 
+        save_mount_options(s, data);
+
         sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
         if (!sbi)
                 goto fail_unlock;
@@ -164,7 +164,9 @@ int autofs_fill_super(struct super_block *s, void *data, int silent)
         s->s_time_gran = 1;
         sbi->sb = s;
 
-        root_inode = iget(s, AUTOFS_ROOT_INO);
+        root_inode = autofs_iget(s, AUTOFS_ROOT_INO);
+        if (IS_ERR(root_inode))
+                goto fail_free;
         root = d_alloc_root(root_inode);
         pipe = NULL;
 
@@ -230,11 +232,17 @@ fail_unlock:
         return -EINVAL;
 }
 
-static void autofs_read_inode(struct inode *inode)
+struct inode *autofs_iget(struct super_block *sb, unsigned long ino)
 {
-        ino_t ino = inode->i_ino;
         unsigned int n;
-        struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
+        struct autofs_sb_info *sbi = autofs_sbi(sb);
+        struct inode *inode;
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
 
         /* Initialize to the default case (stub directory) */
 
@@ -250,7 +258,7 @@ static void autofs_read_inode(struct inode *inode)
                 inode->i_op = &autofs_root_inode_operations;
                 inode->i_fop = &autofs_root_operations;
                 inode->i_uid = inode->i_gid = 0; /* Changed in read_super */
-                return;
+                goto done;
         } 
         
         inode->i_uid = inode->i_sb->s_root->d_inode->i_uid;
@@ -263,7 +271,7 @@ static void autofs_read_inode(struct inode *inode)
                 n = ino - AUTOFS_FIRST_SYMLINK;
                 if (n >= AUTOFS_MAX_SYMLINKS || !test_bit(n,sbi->symlink_bitmap)) {
                         printk("autofs: Looking for bad symlink inode %u\n", (unsigned int) ino);
-                        return;
+                        goto done;
                 }
                 
                 inode->i_op = &autofs_symlink_inode_operations;
@@ -275,4 +283,8 @@ static void autofs_read_inode(struct inode *inode)
                 inode->i_size = sl->len;
                 inode->i_nlink = 1;
         }
+
+done:
+        unlock_new_inode(inode);
+        return inode;
 }
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index 5efff3c0d886..8aacade56956 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -114,8 +114,8 @@ static int try_to_fill_dentry(struct dentry *dentry, struct super_block *sb, str
         dentry->d_time = (unsigned long) ent;
         
         if (!dentry->d_inode) {
-                inode = iget(sb, ent->ino);
-                if (!inode) {
+                inode = autofs_iget(sb, ent->ino);
+                if (IS_ERR(inode)) {
                         /* Failed, but leave pending for next time */
                         return 1;
                 }
@@ -274,6 +274,7 @@ static int autofs_root_symlink(struct inode *dir, struct dentry *dentry, const c
         unsigned int n;
         int slsize;
         struct autofs_symlink *sl;
+        struct inode *inode;
 
         DPRINTK(("autofs_root_symlink: %s <- ", symname));
         autofs_say(dentry->d_name.name,dentry->d_name.len);
@@ -331,7 +332,12 @@ static int autofs_root_symlink(struct inode *dir, struct dentry *dentry, const c
         ent->dentry = NULL;     /* We don't keep the dentry for symlinks */
 
         autofs_hash_insert(dh,ent);
-        d_instantiate(dentry, iget(dir->i_sb,ent->ino));
+
+        inode = autofs_iget(dir->i_sb, ent->ino);
+        if (IS_ERR(inode))
+                return PTR_ERR(inode);
+
+        d_instantiate(dentry, inode);
         unlock_kernel();
         return 0;
 }
@@ -428,6 +434,7 @@ static int autofs_root_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
         struct autofs_dirhash *dh = &sbi->dirhash;
         struct autofs_dir_ent *ent;
+        struct inode *inode;
         ino_t ino;
 
         lock_kernel();
@@ -469,7 +476,14 @@ static int autofs_root_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         autofs_hash_insert(dh,ent);
 
         inc_nlink(dir);
-        d_instantiate(dentry, iget(dir->i_sb,ino));
+
+        inode = autofs_iget(dir->i_sb, ino);
+        if (IS_ERR(inode)) {
+                drop_nlink(dir);
+                return PTR_ERR(inode);
+        }
+
+        d_instantiate(dentry, inode);
         unlock_kernel();
 
         return 0;
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 7f05d6ccdb13..2fdcf5e1d236 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -176,11 +176,16 @@ out_kill_sb:
 static int autofs4_show_options(struct seq_file *m, struct vfsmount *mnt)
 {
         struct autofs_sb_info *sbi = autofs4_sbi(mnt->mnt_sb);
+        struct inode *root_inode = mnt->mnt_sb->s_root->d_inode;
 
         if (!sbi)
                 return 0;
 
         seq_printf(m, ",fd=%d", sbi->pipefd);
+        if (root_inode->i_uid != 0)
+                seq_printf(m, ",uid=%u", root_inode->i_uid);
+        if (root_inode->i_gid != 0)
+                seq_printf(m, ",gid=%u", root_inode->i_gid);
         seq_printf(m, ",pgrp=%d", sbi->oz_pgrp);
         seq_printf(m, ",timeout=%lu", sbi->exp_timeout/HZ);
         seq_printf(m, ",minproto=%d", sbi->min_proto);
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 2bbcc8151dc3..a54a946a50ae 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -368,7 +368,8 @@ static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
                  * so we don't need to follow the mount.
                  */
                 if (d_mountpoint(dentry)) {
-                        if (!autofs4_follow_mount(&nd->mnt, &nd->dentry)) {
+                        if (!autofs4_follow_mount(&nd->path.mnt,
+                                                  &nd->path.dentry)) {
                                 status = -ENOENT;
                                 goto out_error;
                         }
@@ -382,7 +383,7 @@ done:
         return NULL;
 
 out_error:
-        path_release(nd);
+        path_put(&nd->path);
         return ERR_PTR(status);
 }
 
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 521ff7caadbd..f1c2ea8342f5 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -359,3 +359,17 @@ int is_bad_inode(struct inode *inode)
 }
 
 EXPORT_SYMBOL(is_bad_inode);
+
+/**
+ * iget_failed - Mark an under-construction inode as dead and release it
+ * @inode: The inode to discard
+ *
+ * Mark an under-construction inode as dead and release it.
+ */
+void iget_failed(struct inode *inode)
+{
+        make_bad_inode(inode);
+        unlock_new_inode(inode);
+        iput(inode);
+}
+EXPORT_SYMBOL(iget_failed);
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index b28a20e61b80..82123ff3e1dd 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -35,7 +35,7 @@ static int befs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 static int befs_readpage(struct file *file, struct page *page);
 static sector_t befs_bmap(struct address_space *mapping, sector_t block);
 static struct dentry *befs_lookup(struct inode *, struct dentry *, struct nameidata *);
-static void befs_read_inode(struct inode *ino);
+static struct inode *befs_iget(struct super_block *, unsigned long);
 static struct inode *befs_alloc_inode(struct super_block *sb);
 static void befs_destroy_inode(struct inode *inode);
 static int befs_init_inodecache(void);
@@ -52,12 +52,12 @@ static int befs_statfs(struct dentry *, struct kstatfs *);
 static int parse_options(char *, befs_mount_options *);
 
 static const struct super_operations befs_sops = {
-        .read_inode     = befs_read_inode,      /* initialize & read inode */
         .alloc_inode    = befs_alloc_inode,     /* allocate a new inode */
         .destroy_inode  = befs_destroy_inode, /* deallocate an inode */
         .put_super      = befs_put_super,       /* uninit super */
         .statfs         = befs_statfs,  /* statfs */
         .remount_fs     = befs_remount,
+        .show_options   = generic_show_options,
 };
 
 /* slab cache for befs_inode_info objects */
@@ -198,9 +198,9 @@ befs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
                 return ERR_PTR(-ENODATA);
         }
 
-        inode = iget(dir->i_sb, (ino_t) offset);
-        if (!inode)
-                return ERR_PTR(-EACCES);
+        inode = befs_iget(dir->i_sb, (ino_t) offset);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
 
         d_add(dentry, inode);
 
@@ -296,17 +296,23 @@ static void init_once(struct kmem_cache *cachep, void *foo)
         inode_init_once(&bi->vfs_inode);
 }
 
-static void
-befs_read_inode(struct inode *inode)
+static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
 {
         struct buffer_head *bh = NULL;
         befs_inode *raw_inode = NULL;
 
-        struct super_block *sb = inode->i_sb;
         befs_sb_info *befs_sb = BEFS_SB(sb);
         befs_inode_info *befs_ino = NULL;
+        struct inode *inode;
+        long ret = -EIO;
+
+        befs_debug(sb, "---> befs_read_inode() " "inode = %lu", ino);
 
-        befs_debug(sb, "---> befs_read_inode() " "inode = %lu", inode->i_ino);
+        inode = iget_locked(sb, ino);
+        if (IS_ERR(inode))
+                return inode;
+        if (!(inode->i_state & I_NEW))
+                return inode;
 
         befs_ino = BEFS_I(inode);
 
@@ -402,15 +408,16 @@ befs_read_inode(struct inode *inode)
 
         brelse(bh);
         befs_debug(sb, "<--- befs_read_inode()");
-        return;
+        unlock_new_inode(inode);
+        return inode;
 
       unacquire_bh:
         brelse(bh);
 
       unacquire_none:
-        make_bad_inode(inode);
+        iget_failed(inode);
         befs_debug(sb, "<--- befs_read_inode() - Bad inode");
-        return;
+        return ERR_PTR(ret);
 }
 
 /* Initialize the inode cache. Called at fs setup.
@@ -752,10 +759,12 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
         befs_sb_info *befs_sb;
         befs_super_block *disk_sb;
         struct inode *root;
-
+        long ret = -EINVAL;
         const unsigned long sb_block = 0;
         const off_t x86_sb_off = 512;
 
+        save_mount_options(sb, data);
+
         sb->s_fs_info = kmalloc(sizeof (*befs_sb), GFP_KERNEL);
         if (sb->s_fs_info == NULL) {
                 printk(KERN_ERR
@@ -833,7 +842,11 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
         /* Set real blocksize of fs */
         sb_set_blocksize(sb, (ulong) befs_sb->block_size);
         sb->s_op = (struct super_operations *) &befs_sops;
-        root = iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));
+        root = befs_iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));
+        if (IS_ERR(root)) {
+                ret = PTR_ERR(root);
+                goto unacquire_priv_sbp;
+        }
         sb->s_root = d_alloc_root(root);
         if (!sb->s_root) {
                 iput(root);
@@ -868,7 +881,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 
       unacquire_none:
         sb->s_fs_info = NULL;
-        return -EINVAL;
+        return ret;
 }
 
 static int
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index ac7a8b1d6c3a..71faf4d23908 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -44,6 +44,8 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
 #define printf(format, args...) \
         printk(KERN_ERR "BFS-fs: %s(): " format, __FUNCTION__, ## args)
 
+/* inode.c */
+extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
 
 /* file.c */
 extern const struct inode_operations bfs_file_inops;
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 1fd056d0fc3d..034950cb3cbe 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -148,10 +148,10 @@ static struct dentry *bfs_lookup(struct inode *dir, struct dentry *dentry,
         if (bh) {
                 unsigned long ino = (unsigned long)le16_to_cpu(de->ino);
                 brelse(bh);
-                inode = iget(dir->i_sb, ino);
-                if (!inode) {
+                inode = bfs_iget(dir->i_sb, ino);
+                if (IS_ERR(inode)) {
                         unlock_kernel();
-                        return ERR_PTR(-EACCES);
+                        return ERR_CAST(inode);
                 }
         }
         unlock_kernel();
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index a64a71d444f5..8db623838b50 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -32,17 +32,22 @@ MODULE_LICENSE("GPL");
 
 void dump_imap(const char *prefix, struct super_block *s);
 
-static void bfs_read_inode(struct inode *inode)
+struct inode *bfs_iget(struct super_block *sb, unsigned long ino)
 {
-        unsigned long ino = inode->i_ino;
         struct bfs_inode *di;
+        struct inode *inode;
         struct buffer_head *bh;
         int block, off;
 
+        inode = iget_locked(sb, ino);
+        if (IS_ERR(inode))
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
         if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) {
                 printf("Bad inode number %s:%08lx\n", inode->i_sb->s_id, ino);
-                make_bad_inode(inode);
-                return;
+                goto error;
         }
 
         block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
@@ -50,8 +55,7 @@ static void bfs_read_inode(struct inode *inode)
         if (!bh) {
                 printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id,
                                                                         ino);
-                make_bad_inode(inode);
-                return;
+                goto error;
         }
 
         off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
@@ -85,6 +89,12 @@ static void bfs_read_inode(struct inode *inode)
         inode->i_ctime.tv_nsec = 0;
 
         brelse(bh);
+        unlock_new_inode(inode);
+        return inode;
+
+error:
+        iget_failed(inode);
+        return ERR_PTR(-EIO);
 }
 
 static int bfs_write_inode(struct inode *inode, int unused)
@@ -276,7 +286,6 @@ static void destroy_inodecache(void)
 static const struct super_operations bfs_sops = {
         .alloc_inode    = bfs_alloc_inode,
         .destroy_inode  = bfs_destroy_inode,
-        .read_inode     = bfs_read_inode,
         .write_inode    = bfs_write_inode,
         .delete_inode   = bfs_delete_inode,
         .put_super      = bfs_put_super,
@@ -312,6 +321,7 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
         struct inode *inode;
         unsigned i, imap_len;
         struct bfs_sb_info *info;
+        long ret = -EINVAL;
 
         info = kzalloc(sizeof(*info), GFP_KERNEL);
         if (!info)
@@ -346,14 +356,16 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
                 set_bit(i, info->si_imap);
 
         s->s_op = &bfs_sops;
-        inode = iget(s, BFS_ROOT_INO);
-        if (!inode) {
+        inode = bfs_iget(s, BFS_ROOT_INO);
+        if (IS_ERR(inode)) {
+                ret = PTR_ERR(inode);
                 kfree(info->si_imap);
                 goto out;
         }
         s->s_root = d_alloc_root(inode);
         if (!s->s_root) {
                 iput(inode);
+                ret = -ENOMEM;
                 kfree(info->si_imap);
                 goto out;
         }
@@ -404,7 +416,7 @@ out:
         brelse(bh);
         kfree(info);
         s->s_fs_info = NULL;
-        return -EINVAL;
+        return ret;
 }
 
 static int bfs_get_sb(struct file_system_type *fs_type,
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 7596e1e94cde..a1bb2244cac7 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -28,6 +28,7 @@
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
+#include <asm/a.out-core.h>
 
 static int load_aout_binary(struct linux_binprm *, struct pt_regs * regs);
 static int load_aout_library(struct file*);
@@ -115,10 +116,10 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, u
         current->flags |= PF_DUMPCORE;
         strncpy(dump.u_comm, current->comm, sizeof(dump.u_comm));
 #ifndef __sparc__
-        dump.u_ar0 = (void *)(((unsigned long)(&dump.regs)) - ((unsigned long)(&dump)));
+        dump.u_ar0 = offsetof(struct user, regs);
 #endif
         dump.signal = signr;
-        dump_thread(regs, &dump);
+        aout_dump_thread(regs, &dump);
 
 /* If the size of the dump file exceeds the rlimit, then see what would happen
    if we wrote the stack, but not the data area.  */
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 4628c42ca892..41a958a7585e 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -134,8 +134,7 @@ static int padzero(unsigned long elf_bss)
 
 static int
 create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
-                int interp_aout, unsigned long load_addr,
-                unsigned long interp_load_addr)
+                unsigned long load_addr, unsigned long interp_load_addr)
 {
         unsigned long p = bprm->p;
         int argc = bprm->argc;
@@ -223,12 +222,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 
         sp = STACK_ADD(p, ei_index);
 
-        items = (argc + 1) + (envc + 1);
-        if (interp_aout) {
-                items += 3; /* a.out interpreters require argv & envp too */
-        } else {
-                items += 1; /* ELF interpreters only put argc on the stack */
-        }
+        items = (argc + 1) + (envc + 1) + 1;
         bprm->p = STACK_ROUND(sp, items);
 
         /* Point sp at the lowest address on the stack */
@@ -251,16 +245,8 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
         /* Now, let's put argc (and argv, envp if appropriate) on the stack */
         if (__put_user(argc, sp++))
                 return -EFAULT;
-        if (interp_aout) {
-                argv = sp + 2;
-                envp = argv + argc + 1;
-                if (__put_user((elf_addr_t)(unsigned long)argv, sp++) ||
-                    __put_user((elf_addr_t)(unsigned long)envp, sp++))
-                        return -EFAULT;
-        } else {
-                argv = sp;
-                envp = argv + argc + 1;
-        }
+        argv = sp;
+        envp = argv + argc + 1;
 
         /* Populate argv and envp */
         p = current->mm->arg_end = current->mm->arg_start;
@@ -513,59 +499,12 @@ out:
         return error;
 }
 
-static unsigned long load_aout_interp(struct exec *interp_ex,
-                struct file *interpreter)
-{
-        unsigned long text_data, elf_entry = ~0UL;
-        char __user * addr;
-        loff_t offset;
-
-        current->mm->end_code = interp_ex->a_text;
-        text_data = interp_ex->a_text + interp_ex->a_data;
-        current->mm->end_data = text_data;
-        current->mm->brk = interp_ex->a_bss + text_data;
-
-        switch (N_MAGIC(*interp_ex)) {
-        case OMAGIC:
-                offset = 32;
-                addr = (char __user *)0;
-                break;
-        case ZMAGIC:
-        case QMAGIC:
-                offset = N_TXTOFF(*interp_ex);
-                addr = (char __user *)N_TXTADDR(*interp_ex);
-                break;
-        default:
-                goto out;
-        }
-
-        down_write(&current->mm->mmap_sem);     
-        do_brk(0, text_data);
-        up_write(&current->mm->mmap_sem);
-        if (!interpreter->f_op || !interpreter->f_op->read)
-                goto out;
-        if (interpreter->f_op->read(interpreter, addr, text_data, &offset) < 0)
-                goto out;
-        flush_icache_range((unsigned long)addr,
-                           (unsigned long)addr + text_data);
-
-        down_write(&current->mm->mmap_sem);     
-        do_brk(ELF_PAGESTART(text_data + ELF_MIN_ALIGN - 1),
-                interp_ex->a_bss);
-        up_write(&current->mm->mmap_sem);
-        elf_entry = interp_ex->a_entry;
-
-out:
-        return elf_entry;
-}
-
 /*
  * These are the functions used to load ELF style executables and shared
  * libraries.  There is no binary dependent code anywhere else.
  */
 
 #define INTERPRETER_NONE 0
-#define INTERPRETER_AOUT 1
 #define INTERPRETER_ELF 2
 
 #ifndef STACK_RND_MASK
@@ -594,7 +533,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
         unsigned long load_addr = 0, load_bias = 0;
         int load_addr_set = 0;
         char * elf_interpreter = NULL;
-        unsigned int interpreter_type = INTERPRETER_NONE;
         unsigned long error;
         struct elf_phdr *elf_ppnt, *elf_phdata;
         unsigned long elf_bss, elf_brk;
@@ -605,7 +543,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
         unsigned long interp_load_addr = 0;
         unsigned long start_code, end_code, start_data, end_data;
         unsigned long reloc_func_desc = 0;
-        char passed_fileno[6];
         struct files_struct *files;
         int executable_stack = EXSTACK_DEFAULT;
         unsigned long def_flags = 0;
@@ -774,59 +711,18 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 
         /* Some simple consistency checks for the interpreter */
         if (elf_interpreter) {
-                static int warn;
-                interpreter_type = INTERPRETER_ELF | INTERPRETER_AOUT;
-
-                /* Now figure out which format our binary is */
-                if ((N_MAGIC(loc->interp_ex) != OMAGIC) &&
-                    (N_MAGIC(loc->interp_ex) != ZMAGIC) &&
-                    (N_MAGIC(loc->interp_ex) != QMAGIC))
-                        interpreter_type = INTERPRETER_ELF;
-
-                if (memcmp(loc->interp_elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
-                        interpreter_type &= ~INTERPRETER_ELF;
-
-                if (interpreter_type == INTERPRETER_AOUT && warn < 10) {
-                        printk(KERN_WARNING "a.out ELF interpreter %s is "
-                                "deprecated and will not be supported "
-                                "after Linux 2.6.25\n", elf_interpreter);
-                        warn++;
-                }
-
                 retval = -ELIBBAD;
-                if (!interpreter_type)
+                /* Not an ELF interpreter */
+                if (memcmp(loc->interp_elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
                         goto out_free_dentry;
-
-                /* Make sure only one type was selected */
-                if ((interpreter_type & INTERPRETER_ELF) &&
-                     interpreter_type != INTERPRETER_ELF) {
-                        // FIXME - ratelimit this before re-enabling
-                        // printk(KERN_WARNING "ELF: Ambiguous type, using ELF\n");
-                        interpreter_type = INTERPRETER_ELF;
-                }
                 /* Verify the interpreter has a valid arch */
-                if ((interpreter_type == INTERPRETER_ELF) &&
-                    !elf_check_arch(&loc->interp_elf_ex))
+                if (!elf_check_arch(&loc->interp_elf_ex))
                         goto out_free_dentry;
         } else {
                 /* Executables without an interpreter also need a personality  */
                 SET_PERSONALITY(loc->elf_ex, 0);
         }
 
-        /* OK, we are done with that, now set up the arg stuff,
-           and then start this sucker up */
-        if ((!bprm->sh_bang) && (interpreter_type == INTERPRETER_AOUT)) {
-                char *passed_p = passed_fileno;
-                sprintf(passed_fileno, "%d", elf_exec_fileno);
-
-                if (elf_interpreter) {
-                        retval = copy_strings_kernel(1, &passed_p, bprm);
-                        if (retval)
-                                goto out_free_dentry; 
-                        bprm->argc++;
-                }
-        }
-
         /* Flush all traces of the currently running executable */
         retval = flush_old_exec(bprm);
         if (retval)
@@ -1004,24 +900,19 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
         }
 
         if (elf_interpreter) {
-                if (interpreter_type == INTERPRETER_AOUT) {
-                        elf_entry = load_aout_interp(&loc->interp_ex,
-                                                     interpreter);
-                } else {
-                        unsigned long uninitialized_var(interp_map_addr);
-
-                        elf_entry = load_elf_interp(&loc->interp_elf_ex,
-                                                    interpreter,
-                                                    &interp_map_addr,
-                                                    load_bias);
-                        if (!IS_ERR((void *)elf_entry)) {
-                                /*
-                                 * load_elf_interp() returns relocation
-                                 * adjustment
-                                 */
-                                interp_load_addr = elf_entry;
-                                elf_entry += loc->interp_elf_ex.e_entry;
-                        }
+                unsigned long uninitialized_var(interp_map_addr);
+
+                elf_entry = load_elf_interp(&loc->interp_elf_ex,
+                                            interpreter,
+                                            &interp_map_addr,
+                                            load_bias);
+                if (!IS_ERR((void *)elf_entry)) {
+                        /*
+                         * load_elf_interp() returns relocation
+                         * adjustment
+                         */
+                        interp_load_addr = elf_entry;
+                        elf_entry += loc->interp_elf_ex.e_entry;
                 }
                 if (BAD_ADDR(elf_entry)) {
                         force_sig(SIGSEGV, current);
@@ -1045,8 +936,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 
         kfree(elf_phdata);
 
-        if (interpreter_type != INTERPRETER_AOUT)
-                sys_close(elf_exec_fileno);
+        sys_close(elf_exec_fileno);
 
         set_binfmt(&elf_format);
 
@@ -1061,15 +951,12 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
         compute_creds(bprm);
         current->flags &= ~PF_FORKNOEXEC;
         retval = create_elf_tables(bprm, &loc->elf_ex,
-                          (interpreter_type == INTERPRETER_AOUT),
                           load_addr, interp_load_addr);
         if (retval < 0) {
                 send_sig(SIGKILL, current, 0);
                 goto out;
         }
         /* N.B. passed_fileno might not be initialized? */
-        if (interpreter_type == INTERPRETER_AOUT)
-                current->mm->arg_start += strlen(passed_fileno) + 1;
         current->mm->end_code = end_code;
         current->mm->start_code = start_code;
         current->mm->start_data = start_data;
@@ -1077,7 +964,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
         current->mm->start_stack = bprm->p;
 
 #ifdef arch_randomize_brk
-        if (current->flags & PF_RANDOMIZE)
+        if ((current->flags & PF_RANDOMIZE) && (randomize_va_space > 1))
                 current->mm->brk = current->mm->start_brk =
                         arch_randomize_brk(current->mm);
 #endif
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 33764fd6db66..0498b181dd52 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -20,7 +20,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
-#include <linux/a.out.h>
 #include <linux/errno.h>
 #include <linux/signal.h>
 #include <linux/string.h>
@@ -444,12 +443,12 @@ static int load_flat_file(struct linux_binprm * bprm,
 
         if (strncmp(hdr->magic, "bFLT", 4)) {
                 /*
+                 * Previously, here was a printk to tell people
+                 *   "BINFMT_FLAT: bad header magic".
+                 * But for the kernel which also use ELF FD-PIC format, this
+                 * error message is confusing.
                  * because a lot of people do not manage to produce good
-                 * flat binaries,  we leave this printk to help them realise
-                 * the problem.  We only print the error if its not a script file
                  */
-                if (strncmp(hdr->magic, "#!", 2))
-                        printk("BINFMT_FLAT: bad header magic\n");
                 ret = -ENOEXEC;
                 goto err;
         }
diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
index 9208c41209f9..14c63527c762 100644
--- a/fs/binfmt_som.c
+++ b/fs/binfmt_som.c
@@ -29,7 +29,6 @@
 #include <linux/personality.h>
 #include <linux/init.h>
 
-#include <asm/a.out.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 
diff --git a/fs/block_dev.c b/fs/block_dev.c
index e48a630ae266..67fe72ce6ac7 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -534,7 +534,6 @@ void __init bdev_cache_init(void)
         if (err)
                 panic("Cannot register bdev pseudo-fs");
         bd_mnt = kern_mount(&bd_type);
-        err = PTR_ERR(bd_mnt);
         if (IS_ERR(bd_mnt))
                 panic("Cannot create bdev pseudo-fs");
         blockdev_superblock = bd_mnt->mnt_sb;   /* For writeback */
@@ -1398,19 +1397,19 @@ struct block_device *lookup_bdev(const char *path)
         if (error)
                 return ERR_PTR(error);
 
-        inode = nd.dentry->d_inode;
+        inode = nd.path.dentry->d_inode;
         error = -ENOTBLK;
         if (!S_ISBLK(inode->i_mode))
                 goto fail;
         error = -EACCES;
-        if (nd.mnt->mnt_flags & MNT_NODEV)
+        if (nd.path.mnt->mnt_flags & MNT_NODEV)
                 goto fail;
         error = -ENOMEM;
         bdev = bd_acquire(inode);
         if (!bdev)
                 goto fail;
 out:
-        path_release(&nd);
+        path_put(&nd.path);
         return bdev;
 fail:
         bdev = ERR_PTR(error);
diff --git a/fs/buffer.c b/fs/buffer.c
index 456c9ab7705b..3ebccf4aa7e3 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -67,14 +67,14 @@ static int sync_buffer(void *word)
         return 0;
 }
 
-void fastcall __lock_buffer(struct buffer_head *bh)
+void __lock_buffer(struct buffer_head *bh)
 {
         wait_on_bit_lock(&bh->b_state, BH_Lock, sync_buffer,
                                                         TASK_UNINTERRUPTIBLE);
 }
 EXPORT_SYMBOL(__lock_buffer);
 
-void fastcall unlock_buffer(struct buffer_head *bh)
+void unlock_buffer(struct buffer_head *bh)
 {
         smp_mb__before_clear_bit();
         clear_buffer_locked(bh);
@@ -678,7 +678,7 @@ void mark_buffer_dirty_inode(struct buffer_head *bh, struct inode *inode)
         } else {
                 BUG_ON(mapping->assoc_mapping != buffer_mapping);
         }
-        if (list_empty(&bh->b_assoc_buffers)) {
+        if (!bh->b_assoc_map) {
                 spin_lock(&buffer_mapping->private_lock);
                 list_move_tail(&bh->b_assoc_buffers,
                                 &mapping->private_list);
@@ -794,6 +794,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list)
 {
         struct buffer_head *bh;
         struct list_head tmp;
+        struct address_space *mapping;
         int err = 0, err2;
 
         INIT_LIST_HEAD(&tmp);
@@ -801,9 +802,14 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list)
         spin_lock(lock);
         while (!list_empty(list)) {
                 bh = BH_ENTRY(list->next);
+                mapping = bh->b_assoc_map;
                 __remove_assoc_queue(bh);
+                /* Avoid race with mark_buffer_dirty_inode() which does
+                 * a lockless check and we rely on seeing the dirty bit */
+                smp_mb();
                 if (buffer_dirty(bh) || buffer_locked(bh)) {
                         list_add(&bh->b_assoc_buffers, &tmp);
+                        bh->b_assoc_map = mapping;
                         if (buffer_dirty(bh)) {
                                 get_bh(bh);
                                 spin_unlock(lock);
@@ -822,8 +828,17 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list)
 
         while (!list_empty(&tmp)) {
                 bh = BH_ENTRY(tmp.prev);
-                list_del_init(&bh->b_assoc_buffers);
                 get_bh(bh);
+                mapping = bh->b_assoc_map;
+                __remove_assoc_queue(bh);
+                /* Avoid race with mark_buffer_dirty_inode() which does
+                 * a lockless check and we rely on seeing the dirty bit */
+                smp_mb();
+                if (buffer_dirty(bh)) {
+                        list_add(&bh->b_assoc_buffers,
+                                 &bh->b_assoc_map->private_list);
+                        bh->b_assoc_map = mapping;
+                }
                 spin_unlock(lock);
                 wait_on_buffer(bh);
                 if (!buffer_uptodate(bh))
@@ -1164,7 +1179,7 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size)
  * mark_buffer_dirty() is atomic.  It takes bh->b_page->mapping->private_lock,
  * mapping->tree_lock and the global inode_lock.
  */
-void fastcall mark_buffer_dirty(struct buffer_head *bh)
+void mark_buffer_dirty(struct buffer_head *bh)
 {
         WARN_ON_ONCE(!buffer_uptodate(bh));
         if (!buffer_dirty(bh) && !test_set_buffer_dirty(bh))
@@ -1195,7 +1210,7 @@ void __brelse(struct buffer_head * buf)
 void __bforget(struct buffer_head *bh)
 {
         clear_buffer_dirty(bh);
-        if (!list_empty(&bh->b_assoc_buffers)) {
+        if (bh->b_assoc_map) {
                 struct address_space *buffer_mapping = bh->b_page->mapping;
 
                 spin_lock(&buffer_mapping->private_lock);
@@ -1436,6 +1451,7 @@ void invalidate_bh_lrus(void)
 {
         on_each_cpu(invalidate_bh_lru, NULL, 1, 1);
 }
+EXPORT_SYMBOL_GPL(invalidate_bh_lrus);
 
 void set_bh_page(struct buffer_head *bh,
                 struct page *page, unsigned long offset)
@@ -1798,7 +1814,7 @@ void page_zero_new_buffers(struct page *page, unsigned from, unsigned to)
                                         start = max(from, block_start);
                                         size = min(to, block_end) - start;
 
-                                        zero_user_page(page, start, size, KM_USER0);
+                                        zero_user(page, start, size);
                                         set_buffer_uptodate(bh);
                                 }
 
@@ -1861,19 +1877,10 @@ static int __block_prepare_write(struct inode *inode, struct page *page,
                                         mark_buffer_dirty(bh);
                                         continue;
                                 }
-                                if (block_end > to || block_start < from) {
-                                        void *kaddr;
-
-                                        kaddr = kmap_atomic(page, KM_USER0);
-                                        if (block_end > to)
-                                                memset(kaddr+to, 0,
-                                                        block_end-to);
-                                        if (block_start < from)
-                                                memset(kaddr+block_start,
-                                                        0, from-block_start);
-                                        flush_dcache_page(page);
-                                        kunmap_atomic(kaddr, KM_USER0);
-                                }
+                                if (block_end > to || block_start < from)
+                                        zero_user_segments(page,
+                                                to, block_end,
+                                                block_start, from);
                                 continue;
                         }
                 }
@@ -2104,8 +2111,7 @@ int block_read_full_page(struct page *page, get_block_t *get_block)
                                         SetPageError(page);
                         }
                         if (!buffer_mapped(bh)) {
-                                zero_user_page(page, i * blocksize, blocksize,
-                                                KM_USER0);
+                                zero_user(page, i * blocksize, blocksize);
                                 if (!err)
                                         set_buffer_uptodate(bh);
                                 continue;
@@ -2218,7 +2224,7 @@ int cont_expand_zero(struct file *file, struct address_space *mapping,
                                                 &page, &fsdata);
                 if (err)
                         goto out;
-                zero_user_page(page, zerofrom, len, KM_USER0);
+                zero_user(page, zerofrom, len);
                 err = pagecache_write_end(file, mapping, curpos, len, len,
                                                 page, fsdata);
                 if (err < 0)
@@ -2245,7 +2251,7 @@ int cont_expand_zero(struct file *file, struct address_space *mapping,
                                                 &page, &fsdata);
                 if (err)
                         goto out;
-                zero_user_page(page, zerofrom, len, KM_USER0);
+                zero_user(page, zerofrom, len);
                 err = pagecache_write_end(file, mapping, curpos, len, len,
                                                 page, fsdata);
                 if (err < 0)
@@ -2422,7 +2428,6 @@ int nobh_write_begin(struct file *file, struct address_space *mapping,
         unsigned block_in_page;
         unsigned block_start, block_end;
         sector_t block_in_file;
-        char *kaddr;
         int nr_reads = 0;
         int ret = 0;
         int is_mapped_to_disk = 1;
@@ -2493,13 +2498,8 @@ int nobh_write_begin(struct file *file, struct address_space *mapping,
                         continue;
                 }
                 if (buffer_new(bh) || !buffer_mapped(bh)) {
-                        kaddr = kmap_atomic(page, KM_USER0);
-                        if (block_start < from)
-                                memset(kaddr+block_start, 0, from-block_start);
-                        if (block_end > to)
-                                memset(kaddr + to, 0, block_end - to);
-                        flush_dcache_page(page);
-                        kunmap_atomic(kaddr, KM_USER0);
+                        zero_user_segments(page, block_start, from,
+                                                        to, block_end);
                         continue;
                 }
                 if (buffer_uptodate(bh))
@@ -2636,7 +2636,7 @@ int nobh_writepage(struct page *page, get_block_t *get_block,
          * the  page size, the remaining memory is zeroed when mapped, and
          * writes to that region are not written out to the file."
          */
-        zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0);
+        zero_user_segment(page, offset, PAGE_CACHE_SIZE);
 out:
         ret = mpage_writepage(page, get_block, wbc);
         if (ret == -EAGAIN)
@@ -2709,7 +2709,7 @@ has_buffers:
                 if (page_has_buffers(page))
                         goto has_buffers;
         }
-        zero_user_page(page, offset, length, KM_USER0);
+        zero_user(page, offset, length);
         set_page_dirty(page);
         err = 0;
 
@@ -2785,7 +2785,7 @@ int block_truncate_page(struct address_space *mapping,
                         goto unlock;
         }
 
-        zero_user_page(page, offset, length, KM_USER0);
+        zero_user(page, offset, length);
         mark_buffer_dirty(bh);
         err = 0;
 
@@ -2831,7 +2831,7 @@ int block_write_full_page(struct page *page, get_block_t *get_block,
          * the  page size, the remaining memory is zeroed when mapped, and
          * writes to that region are not written out to the file."
          */
-        zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0);
+        zero_user_segment(page, offset, PAGE_CACHE_SIZE);
         return __block_write_full_page(inode, page, get_block, wbc);
 }
 
@@ -3037,7 +3037,7 @@ drop_buffers(struct page *page, struct buffer_head **buffers_to_free)
         do {
                 struct buffer_head *next = bh->b_this_page;
 
-                if (!list_empty(&bh->b_assoc_buffers))
+                if (bh->b_assoc_map)
                         __remove_assoc_queue(bh);
                 bh = next;
         } while (bh != head);
@@ -3169,7 +3169,7 @@ static void recalc_bh_state(void)
         
 struct buffer_head *alloc_buffer_head(gfp_t gfp_flags)
 {
-        struct buffer_head *ret = kmem_cache_zalloc(bh_cachep,
+        struct buffer_head *ret = kmem_cache_alloc(bh_cachep,
                                 set_migrateflags(gfp_flags, __GFP_RECLAIMABLE));
         if (ret) {
                 INIT_LIST_HEAD(&ret->b_assoc_buffers);
@@ -3257,12 +3257,24 @@ int bh_submit_read(struct buffer_head *bh)
 }
 EXPORT_SYMBOL(bh_submit_read);
 
+static void
+init_buffer_head(struct kmem_cache *cachep, void *data)
+{
+        struct buffer_head *bh = data;
+
+        memset(bh, 0, sizeof(*bh));
+        INIT_LIST_HEAD(&bh->b_assoc_buffers);
+}
+
 void __init buffer_init(void)
 {
         int nrpages;
 
-        bh_cachep = KMEM_CACHE(buffer_head,
-                        SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|SLAB_MEM_SPREAD);
+        bh_cachep = kmem_cache_create("buffer_head",
+                        sizeof(struct buffer_head), 0,
+                                (SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|
+                                SLAB_MEM_SPREAD),
+                                init_buffer_head);
 
         /*
          * Limit the bh occupancy to 10% of ZONE_NORMAL
diff --git a/fs/char_dev.c b/fs/char_dev.c
index 2c7a8b5b4598..038674aa88a7 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -357,7 +357,7 @@ void cdev_put(struct cdev *p)
 /*
  * Called every time a character special file is opened
  */
-int chrdev_open(struct inode * inode, struct file * filp)
+static int chrdev_open(struct inode *inode, struct file *filp)
 {
         struct cdev *p;
         struct cdev *new = NULL;
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 413ee2349d1a..6ad447529961 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -259,18 +259,18 @@ static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd,
         int err;
 
         mntget(newmnt);
-        err = do_add_mount(newmnt, nd, nd->mnt->mnt_flags, mntlist);
+        err = do_add_mount(newmnt, nd, nd->path.mnt->mnt_flags, mntlist);
         switch (err) {
         case 0:
-                dput(nd->dentry);
-                mntput(nd->mnt);
-                nd->mnt = newmnt;
-                nd->dentry = dget(newmnt->mnt_root);
+                dput(nd->path.dentry);
+                mntput(nd->path.mnt);
+                nd->path.mnt = newmnt;
+                nd->path.dentry = dget(newmnt->mnt_root);
                 break;
         case -EBUSY:
                 /* someone else made a mount here whilst we were busy */
-                while (d_mountpoint(nd->dentry) &&
-                       follow_down(&nd->mnt, &nd->dentry))
+                while (d_mountpoint(nd->path.dentry) &&
+                       follow_down(&nd->path.mnt, &nd->path.dentry))
                         ;
                 err = 0;
         default:
@@ -307,8 +307,8 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
 
         xid = GetXid();
 
-        dput(nd->dentry);
-        nd->dentry = dget(dentry);
+        dput(nd->path.dentry);
+        nd->path.dentry = dget(dentry);
 
         cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
         ses = cifs_sb->tcon->ses;
@@ -340,7 +340,8 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
                                 rc = -EINVAL;
                                 goto out_err;
                         }
-                        mnt = cifs_dfs_do_refmount(nd->mnt, nd->dentry,
+                        mnt = cifs_dfs_do_refmount(nd->path.mnt,
+                                                nd->path.dentry,
                                                 referrals[i].node_name);
                         cFYI(1, ("%s: cifs_dfs_do_refmount:%s , mnt:%p",
                                          __FUNCTION__,
@@ -357,7 +358,7 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
         if (IS_ERR(mnt))
                 goto out_err;
 
-        nd->mnt->mnt_flags |= MNT_SHRINKABLE;
+        nd->path.mnt->mnt_flags |= MNT_SHRINKABLE;
         rc = add_mount_helper(mnt, nd, &cifs_dfs_automount_list);
 
 out:
@@ -367,7 +368,7 @@ out:
         cFYI(1, ("leaving %s" , __FUNCTION__));
         return ERR_PTR(rc);
 out_err:
-        path_release(nd);
+        path_put(&nd->path);
         goto out;
 }
 
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index e9f4ec701092..fcc434227691 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -147,10 +147,11 @@ cifs_read_super(struct super_block *sb, void *data,
 #endif
         sb->s_blocksize = CIFS_MAX_MSGSIZE;
         sb->s_blocksize_bits = 14;      /* default 2**14 = CIFS_MAX_MSGSIZE */
-        inode = iget(sb, ROOT_I);
+        inode = cifs_iget(sb, ROOT_I);
 
-        if (!inode) {
-                rc = -ENOMEM;
+        if (IS_ERR(inode)) {
+                rc = PTR_ERR(inode);
+                inode = NULL;
                 goto out_no_root;
         }
 
@@ -520,7 +521,6 @@ static int cifs_remount(struct super_block *sb, int *flags, char *data)
 }
 
 static const struct super_operations cifs_super_ops = {
-        .read_inode = cifs_read_inode,
         .put_super = cifs_put_super,
         .statfs = cifs_statfs,
         .alloc_inode = cifs_alloc_inode,
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 195b14de5567..68978306c3ca 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -44,6 +44,7 @@ extern void cifs_read_inode(struct inode *);
 
 /* Functions related to inodes */
 extern const struct inode_operations cifs_dir_inode_ops;
+extern struct inode *cifs_iget(struct super_block *, unsigned long);
 extern int cifs_create(struct inode *, struct dentry *, int,
                        struct nameidata *);
 extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index d9567ba2960b..b1a4a65eaa08 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -586,10 +586,18 @@ static const struct inode_operations cifs_ipc_inode_ops = {
 };
 
 /* gets root inode */
-void cifs_read_inode(struct inode *inode)
+struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
 {
-        int xid, rc;
+        int xid;
         struct cifs_sb_info *cifs_sb;
+        struct inode *inode;
+        long rc;
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
 
         cifs_sb = CIFS_SB(inode->i_sb);
         xid = GetXid();
@@ -606,10 +614,18 @@ void cifs_read_inode(struct inode *inode)
                 inode->i_fop = &simple_dir_operations;
                 inode->i_uid = cifs_sb->mnt_uid;
                 inode->i_gid = cifs_sb->mnt_gid;
+                _FreeXid(xid);
+                iget_failed(inode);
+                return ERR_PTR(rc);
         }
 
-        /* can not call macro FreeXid here since in a void func */
+        unlock_new_inode(inode);
+
+        /* can not call macro FreeXid here since in a void func
+         * TODO: This is no longer true
+         */
         _FreeXid(xid);
+        return inode;
 }
 
 int cifs_unlink(struct inode *inode, struct dentry *direntry)
@@ -1386,7 +1402,7 @@ static int cifs_truncate_page(struct address_space *mapping, loff_t from)
         if (!page)
                 return -ENOMEM;
 
-        zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0);
+        zero_user_segment(page, offset, PAGE_CACHE_SIZE);
         unlock_page(page);
         page_cache_release(page);
         return rc;
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index 2bf3026adc80..c21a1f552a63 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -75,12 +75,12 @@ static int coda_pioctl(struct inode * inode, struct file * filp,
         if ( error ) {
                 return error;
         } else {
-                target_inode = nd.dentry->d_inode;
+                target_inode = nd.path.dentry->d_inode;
         }
         
         /* return if it is not a Coda inode */
         if ( target_inode->i_sb != inode->i_sb ) {
-                path_release(&nd);
+                path_put(&nd.path);
                 return  -EINVAL;
         }
 
@@ -89,7 +89,7 @@ static int coda_pioctl(struct inode * inode, struct file * filp,
 
         error = venus_pioctl(inode->i_sb, &(cnp->c_fid), cmd, &data);
 
-        path_release(&nd);
+        path_put(&nd.path);
         return error;
 }
 
diff --git a/fs/compat.c b/fs/compat.c
index 5216c3fd7517..2ce4456aad30 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -241,10 +241,10 @@ asmlinkage long compat_sys_statfs(const char __user *path, struct compat_statfs
         error = user_path_walk(path, &nd);
         if (!error) {
                 struct kstatfs tmp;
-                error = vfs_statfs(nd.dentry, &tmp);
+                error = vfs_statfs(nd.path.dentry, &tmp);
                 if (!error)
                         error = put_compat_statfs(buf, &tmp);
-                path_release(&nd);
+                path_put(&nd.path);
         }
         return error;
 }
@@ -309,10 +309,10 @@ asmlinkage long compat_sys_statfs64(const char __user *path, compat_size_t sz, s
         error = user_path_walk(path, &nd);
         if (!error) {
                 struct kstatfs tmp;
-                error = vfs_statfs(nd.dentry, &tmp);
+                error = vfs_statfs(nd.path.dentry, &tmp);
                 if (!error)
                         error = put_compat_statfs64(buf, &tmp);
-                path_release(&nd);
+                path_put(&nd.path);
         }
         return error;
 }
@@ -702,9 +702,6 @@ static int do_nfs4_super_data_conv(void *raw_data)
                 real->flags = raw->flags;
                 real->version = raw->version;
         }
-        else {
-                return -EINVAL;
-        }
 
         return 0;
 }
@@ -2083,51 +2080,6 @@ long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2)
 
 #ifdef CONFIG_EPOLL
 
-#ifdef CONFIG_HAS_COMPAT_EPOLL_EVENT
-asmlinkage long compat_sys_epoll_ctl(int epfd, int op, int fd,
-                        struct compat_epoll_event __user *event)
-{
-        long err = 0;
-        struct compat_epoll_event user;
-        struct epoll_event __user *kernel = NULL;
-
-        if (event) {
-                if (copy_from_user(&user, event, sizeof(user)))
-                        return -EFAULT;
-                kernel = compat_alloc_user_space(sizeof(struct epoll_event));
-                err |= __put_user(user.events, &kernel->events);
-                err |= __put_user(user.data, &kernel->data);
-        }
-
-        return err ? err : sys_epoll_ctl(epfd, op, fd, kernel);
-}
-
-
-asmlinkage long compat_sys_epoll_wait(int epfd,
-                        struct compat_epoll_event __user *events,
-                        int maxevents, int timeout)
-{
-        long i, ret, err = 0;
-        struct epoll_event __user *kbuf;
-        struct epoll_event ev;
-
-        if ((maxevents <= 0) ||
-                        (maxevents > (INT_MAX / sizeof(struct epoll_event))))
-                return -EINVAL;
-        kbuf = compat_alloc_user_space(sizeof(struct epoll_event) * maxevents);
-        ret = sys_epoll_wait(epfd, kbuf, maxevents, timeout);
-        for (i = 0; i < ret; i++) {
-                err |= __get_user(ev.events, &kbuf[i].events);
-                err |= __get_user(ev.data, &kbuf[i].data);
-                err |= __put_user(ev.events, &events->events);
-                err |= __put_user_unaligned(ev.data, &events->data);
-                events++;
-        }
-
-        return err ? -EFAULT: ret;
-}
-#endif  /* CONFIG_HAS_COMPAT_EPOLL_EVENT */
-
 #ifdef TIF_RESTORE_SIGMASK
 asmlinkage long compat_sys_epoll_pwait(int epfd,
                         struct compat_epoll_event __user *events,
@@ -2153,11 +2105,7 @@ asmlinkage long compat_sys_epoll_pwait(int epfd,
                 sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
         }
 
-#ifdef CONFIG_HAS_COMPAT_EPOLL_EVENT
-        err = compat_sys_epoll_wait(epfd, events, maxevents, timeout);
-#else
         err = sys_epoll_wait(epfd, events, maxevents, timeout);
-#endif
 
         /*
          * If we changed the signal mask, we need to restore the original one.
@@ -2206,19 +2154,41 @@ asmlinkage long compat_sys_signalfd(int ufd,
 
 #ifdef CONFIG_TIMERFD
 
-asmlinkage long compat_sys_timerfd(int ufd, int clockid, int flags,
-                                   const struct compat_itimerspec __user *utmr)
+asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
+                                   const struct compat_itimerspec __user *utmr,
+                                   struct compat_itimerspec __user *otmr)
 {
+        int error;
         struct itimerspec t;
         struct itimerspec __user *ut;
 
         if (get_compat_itimerspec(&t, utmr))
                 return -EFAULT;
-        ut = compat_alloc_user_space(sizeof(*ut));
-        if (copy_to_user(ut, &t, sizeof(t)))
+        ut = compat_alloc_user_space(2 * sizeof(struct itimerspec));
+        if (copy_to_user(&ut[0], &t, sizeof(t)))
                 return -EFAULT;
+        error = sys_timerfd_settime(ufd, flags, &ut[0], &ut[1]);
+        if (!error && otmr)
+                error = (copy_from_user(&t, &ut[1], sizeof(struct itimerspec)) ||
+                         put_compat_itimerspec(otmr, &t)) ? -EFAULT: 0;
 
-        return sys_timerfd(ufd, clockid, flags, ut);
+        return error;
+}
+
+asmlinkage long compat_sys_timerfd_gettime(int ufd,
+                                   struct compat_itimerspec __user *otmr)
+{
+        int error;
+        struct itimerspec t;
+        struct itimerspec __user *ut;
+
+        ut = compat_alloc_user_space(sizeof(struct itimerspec));
+        error = sys_timerfd_gettime(ufd, ut);
+        if (!error)
+                error = (copy_from_user(&t, ut, sizeof(struct itimerspec)) ||
+                         put_compat_itimerspec(otmr, &t)) ? -EFAULT: 0;
+
+        return error;
 }
 
 #endif /* CONFIG_TIMERFD */
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index ffdc022cae64..c6e72aebd16b 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -78,7 +78,6 @@
 #include <linux/mii.h>
 #include <linux/if_bonding.h>
 #include <linux/watchdog.h>
-#include <linux/dm-ioctl.h>
 
 #include <linux/soundcard.h>
 #include <linux/lp.h>
@@ -1993,39 +1992,6 @@ COMPATIBLE_IOCTL(STOP_ARRAY_RO)
 COMPATIBLE_IOCTL(RESTART_ARRAY_RW)
 COMPATIBLE_IOCTL(GET_BITMAP_FILE)
 ULONG_IOCTL(SET_BITMAP_FILE)
-/* DM */
-COMPATIBLE_IOCTL(DM_VERSION_32)
-COMPATIBLE_IOCTL(DM_REMOVE_ALL_32)
-COMPATIBLE_IOCTL(DM_LIST_DEVICES_32)
-COMPATIBLE_IOCTL(DM_DEV_CREATE_32)
-COMPATIBLE_IOCTL(DM_DEV_REMOVE_32)
-COMPATIBLE_IOCTL(DM_DEV_RENAME_32)
-COMPATIBLE_IOCTL(DM_DEV_SUSPEND_32)
-COMPATIBLE_IOCTL(DM_DEV_STATUS_32)
-COMPATIBLE_IOCTL(DM_DEV_WAIT_32)
-COMPATIBLE_IOCTL(DM_TABLE_LOAD_32)
-COMPATIBLE_IOCTL(DM_TABLE_CLEAR_32)
-COMPATIBLE_IOCTL(DM_TABLE_DEPS_32)
-COMPATIBLE_IOCTL(DM_TABLE_STATUS_32)
-COMPATIBLE_IOCTL(DM_LIST_VERSIONS_32)
-COMPATIBLE_IOCTL(DM_TARGET_MSG_32)
-COMPATIBLE_IOCTL(DM_DEV_SET_GEOMETRY_32)
-COMPATIBLE_IOCTL(DM_VERSION)
-COMPATIBLE_IOCTL(DM_REMOVE_ALL)
-COMPATIBLE_IOCTL(DM_LIST_DEVICES)
-COMPATIBLE_IOCTL(DM_DEV_CREATE)
-COMPATIBLE_IOCTL(DM_DEV_REMOVE)
-COMPATIBLE_IOCTL(DM_DEV_RENAME)
-COMPATIBLE_IOCTL(DM_DEV_SUSPEND)
-COMPATIBLE_IOCTL(DM_DEV_STATUS)
-COMPATIBLE_IOCTL(DM_DEV_WAIT)
-COMPATIBLE_IOCTL(DM_TABLE_LOAD)
-COMPATIBLE_IOCTL(DM_TABLE_CLEAR)
-COMPATIBLE_IOCTL(DM_TABLE_DEPS)
-COMPATIBLE_IOCTL(DM_TABLE_STATUS)
-COMPATIBLE_IOCTL(DM_LIST_VERSIONS)
-COMPATIBLE_IOCTL(DM_TARGET_MSG)
-COMPATIBLE_IOCTL(DM_DEV_SET_GEOMETRY)
 /* Big K */
 COMPATIBLE_IOCTL(PIO_FONT)
 COMPATIBLE_IOCTL(GIO_FONT)
@@ -2887,7 +2853,7 @@ static void compat_ioctl_error(struct file *filp, unsigned int fd,
         /* find the name of the device. */
         path = (char *)__get_free_page(GFP_KERNEL);
         if (path) {
-                fn = d_path(filp->f_path.dentry, filp->f_path.mnt, path, PAGE_SIZE);
+                fn = d_path(&filp->f_path, path, PAGE_SIZE);
                 if (IS_ERR(fn))
                         fn = "?";
         }
@@ -2986,7 +2952,7 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
         }
 
  do_ioctl:
-        error = vfs_ioctl(filp, fd, cmd, arg);
+        error = do_vfs_ioctl(filp, fd, cmd, arg);
  out_fput:
         fput_light(filp, fput_needed);
  out:
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index 22700d2857da..78929ea84ff2 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -99,11 +99,11 @@ static int get_target(const char *symname, struct nameidata *nd,
 
         ret = path_lookup(symname, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, nd);
         if (!ret) {
-                if (nd->dentry->d_sb == configfs_sb) {
-                        *target = configfs_get_config_item(nd->dentry);
+                if (nd->path.dentry->d_sb == configfs_sb) {
+                        *target = configfs_get_config_item(nd->path.dentry);
                         if (!*target) {
                                 ret = -ENOENT;
-                                path_release(nd);
+                                path_put(&nd->path);
                         }
                 } else
                         ret = -EPERM;
@@ -141,7 +141,7 @@ int configfs_symlink(struct inode *dir, struct dentry *dentry, const char *symna
                 ret = create_link(parent_item, target_item, dentry);
 
         config_item_put(target_item);
-        path_release(&nd);
+        path_put(&nd.path);
 
 out_put:
         config_item_put(parent_item);
diff --git a/fs/dcache.c b/fs/dcache.c
index d9ca1e5ceb92..43455776711e 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -89,12 +89,20 @@ static void d_free(struct dentry *dentry)
         if (dentry->d_op && dentry->d_op->d_release)
                 dentry->d_op->d_release(dentry);
         /* if dentry was never inserted into hash, immediate free is OK */
-        if (dentry->d_hash.pprev == NULL)
+        if (hlist_unhashed(&dentry->d_hash))
                 __d_free(dentry);
         else
                 call_rcu(&dentry->d_u.d_rcu, d_callback);
 }
 
+static void dentry_lru_remove(struct dentry *dentry)
+{
+        if (!list_empty(&dentry->d_lru)) {
+                list_del_init(&dentry->d_lru);
+                dentry_stat.nr_unused--;
+        }
+}
+
 /*
  * Release the dentry's inode, using the filesystem
  * d_iput() operation if defined.
@@ -211,13 +219,7 @@ repeat:
 unhash_it:
         __d_drop(dentry);
 kill_it:
-        /* If dentry was on d_lru list
-         * delete it from there
-         */
-        if (!list_empty(&dentry->d_lru)) {
-                list_del(&dentry->d_lru);
-                dentry_stat.nr_unused--;
-        }
+        dentry_lru_remove(dentry);
         dentry = d_kill(dentry);
         if (dentry)
                 goto repeat;
@@ -285,10 +287,7 @@ int d_invalidate(struct dentry * dentry)
 static inline struct dentry * __dget_locked(struct dentry *dentry)
 {
         atomic_inc(&dentry->d_count);
-        if (!list_empty(&dentry->d_lru)) {
-                dentry_stat.nr_unused--;
-                list_del_init(&dentry->d_lru);
-        }
+        dentry_lru_remove(dentry);
         return dentry;
 }
 
@@ -404,10 +403,7 @@ static void prune_one_dentry(struct dentry * dentry)
 
                 if (dentry->d_op && dentry->d_op->d_delete)
                         dentry->d_op->d_delete(dentry);
-                if (!list_empty(&dentry->d_lru)) {
-                        list_del(&dentry->d_lru);
-                        dentry_stat.nr_unused--;
-                }
+                dentry_lru_remove(dentry);
                 __d_drop(dentry);
                 dentry = d_kill(dentry);
                 spin_lock(&dcache_lock);
@@ -596,10 +592,7 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry)
 
         /* detach this root from the system */
         spin_lock(&dcache_lock);
-        if (!list_empty(&dentry->d_lru)) {
-                dentry_stat.nr_unused--;
-                list_del_init(&dentry->d_lru);
-        }
+        dentry_lru_remove(dentry);
         __d_drop(dentry);
         spin_unlock(&dcache_lock);
 
@@ -613,11 +606,7 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry)
                         spin_lock(&dcache_lock);
                         list_for_each_entry(loop, &dentry->d_subdirs,
                                             d_u.d_child) {
-                                if (!list_empty(&loop->d_lru)) {
-                                        dentry_stat.nr_unused--;
-                                        list_del_init(&loop->d_lru);
-                                }
-
+                                dentry_lru_remove(loop);
                                 __d_drop(loop);
                                 cond_resched_lock(&dcache_lock);
                         }
@@ -799,10 +788,7 @@ resume:
                 struct dentry *dentry = list_entry(tmp, struct dentry, d_u.d_child);
                 next = tmp->next;
 
-                if (!list_empty(&dentry->d_lru)) {
-                        dentry_stat.nr_unused--;
-                        list_del_init(&dentry->d_lru);
-                }
+                dentry_lru_remove(dentry);
                 /* 
                  * move only zero ref count dentries to the end 
                  * of the unused list for prune_dcache
@@ -1408,9 +1394,6 @@ void d_delete(struct dentry * dentry)
         if (atomic_read(&dentry->d_count) == 1) {
                 dentry_iput(dentry);
                 fsnotify_nameremove(dentry, isdir);
-
-                /* remove this and other inotify debug checks after 2.6.18 */
-                dentry->d_flags &= ~DCACHE_INOTIFY_PARENT_WATCHED;
                 return;
         }
 
@@ -1779,9 +1762,8 @@ shouldnt_be_hashed:
  *
  * "buflen" should be positive. Caller holds the dcache_lock.
  */
-static char * __d_path( struct dentry *dentry, struct vfsmount *vfsmnt,
-                        struct dentry *root, struct vfsmount *rootmnt,
-                        char *buffer, int buflen)
+static char *__d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
+                       struct path *root, char *buffer, int buflen)
 {
         char * end = buffer+buflen;
         char * retval;
@@ -1806,7 +1788,7 @@ static char * __d_path( struct dentry *dentry, struct vfsmount *vfsmnt,
         for (;;) {
                 struct dentry * parent;
 
-                if (dentry == root && vfsmnt == rootmnt)
+                if (dentry == root->dentry && vfsmnt == root->mnt)
                         break;
                 if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
                         /* Global root? */
@@ -1847,13 +1829,23 @@ Elong:
         return ERR_PTR(-ENAMETOOLONG);
 }
 
-/* write full pathname into buffer and return start of pathname */
-char * d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
-                                char *buf, int buflen)
+/**
+ * d_path - return the path of a dentry
+ * @path: path to report
+ * @buf: buffer to return value in
+ * @buflen: buffer length
+ *
+ * Convert a dentry into an ASCII path name. If the entry has been deleted
+ * the string " (deleted)" is appended. Note that this is ambiguous.
+ *
+ * Returns the buffer or an error code if the path was too long.
+ *
+ * "buflen" should be positive. Caller holds the dcache_lock.
+ */
+char *d_path(struct path *path, char *buf, int buflen)
 {
         char *res;
-        struct vfsmount *rootmnt;
-        struct dentry *root;
+        struct path root;
 
         /*
          * We have various synthetic filesystems that never get mounted.  On
@@ -1862,18 +1854,17 @@ char * d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
          * user wants to identify the object in /proc/pid/fd/.  The little hack
          * below allows us to generate a name for these objects on demand:
          */
-        if (dentry->d_op && dentry->d_op->d_dname)
-                return dentry->d_op->d_dname(dentry, buf, buflen);
+        if (path->dentry->d_op && path->dentry->d_op->d_dname)
+                return path->dentry->d_op->d_dname(path->dentry, buf, buflen);
 
         read_lock(&current->fs->lock);
-        rootmnt = mntget(current->fs->rootmnt);
-        root = dget(current->fs->root);
+        root = current->fs->root;
+        path_get(&current->fs->root);
         read_unlock(&current->fs->lock);
         spin_lock(&dcache_lock);
-        res = __d_path(dentry, vfsmnt, root, rootmnt, buf, buflen);
+        res = __d_path(path->dentry, path->mnt, &root, buf, buflen);
         spin_unlock(&dcache_lock);
-        dput(root);
-        mntput(rootmnt);
+        path_put(&root);
         return res;
 }
 
@@ -1919,28 +1910,27 @@ char *dynamic_dname(struct dentry *dentry, char *buffer, int buflen,
 asmlinkage long sys_getcwd(char __user *buf, unsigned long size)
 {
         int error;
-        struct vfsmount *pwdmnt, *rootmnt;
-        struct dentry *pwd, *root;
+        struct path pwd, root;
         char *page = (char *) __get_free_page(GFP_USER);
 
         if (!page)
                 return -ENOMEM;
 
         read_lock(&current->fs->lock);
-        pwdmnt = mntget(current->fs->pwdmnt);
-        pwd = dget(current->fs->pwd);
-        rootmnt = mntget(current->fs->rootmnt);
-        root = dget(current->fs->root);
+        pwd = current->fs->pwd;
+        path_get(&current->fs->pwd);
+        root = current->fs->root;
+        path_get(&current->fs->root);
         read_unlock(&current->fs->lock);
 
         error = -ENOENT;
         /* Has the current directory has been unlinked? */
         spin_lock(&dcache_lock);
-        if (pwd->d_parent == pwd || !d_unhashed(pwd)) {
+        if (pwd.dentry->d_parent == pwd.dentry || !d_unhashed(pwd.dentry)) {
                 unsigned long len;
                 char * cwd;
 
-                cwd = __d_path(pwd, pwdmnt, root, rootmnt, page, PAGE_SIZE);
+                cwd = __d_path(pwd.dentry, pwd.mnt, &root, page, PAGE_SIZE);
                 spin_unlock(&dcache_lock);
 
                 error = PTR_ERR(cwd);
@@ -1958,10 +1948,8 @@ asmlinkage long sys_getcwd(char __user *buf, unsigned long size)
                 spin_unlock(&dcache_lock);
 
 out:
-        dput(pwd);
-        mntput(pwdmnt);
-        dput(root);
-        mntput(rootmnt);
+        path_put(&pwd);
+        path_put(&root);
         free_page((unsigned long) page);
         return error;
 }
diff --git a/fs/dcookies.c b/fs/dcookies.c
index 792cbf55fa95..855d4b1d619a 100644
--- a/fs/dcookies.c
+++ b/fs/dcookies.c
@@ -24,6 +24,7 @@
 #include <linux/errno.h>
 #include <linux/dcookies.h>
 #include <linux/mutex.h>
+#include <linux/path.h>
 #include <asm/uaccess.h>
 
 /* The dcookies are allocated from a kmem_cache and
@@ -31,8 +32,7 @@
  * code here is particularly performance critical
  */
 struct dcookie_struct {
-        struct dentry * dentry;
-        struct vfsmount * vfsmnt;
+        struct path path;
         struct list_head hash_list;
 };
 
@@ -51,7 +51,7 @@ static inline int is_live(void)
 /* The dentry is locked, its address will do for the cookie */
 static inline unsigned long dcookie_value(struct dcookie_struct * dcs)
 {
-        return (unsigned long)dcs->dentry;
+        return (unsigned long)dcs->path.dentry;
 }
 
 
@@ -89,19 +89,17 @@ static void hash_dcookie(struct dcookie_struct * dcs)
 }
 
 
-static struct dcookie_struct * alloc_dcookie(struct dentry * dentry,
-        struct vfsmount * vfsmnt)
+static struct dcookie_struct *alloc_dcookie(struct path *path)
 {
-        struct dcookie_struct * dcs = kmem_cache_alloc(dcookie_cache, GFP_KERNEL);
+        struct dcookie_struct *dcs = kmem_cache_alloc(dcookie_cache,
+                                                        GFP_KERNEL);
         if (!dcs)
                 return NULL;
 
-        dentry->d_cookie = dcs;
-
-        dcs->dentry = dget(dentry);
-        dcs->vfsmnt = mntget(vfsmnt);
+        path->dentry->d_cookie = dcs;
+        dcs->path = *path;
+        path_get(path);
         hash_dcookie(dcs);
-
         return dcs;
 }
 
@@ -109,8 +107,7 @@ static struct dcookie_struct * alloc_dcookie(struct dentry * dentry,
 /* This is the main kernel-side routine that retrieves the cookie
  * value for a dentry/vfsmnt pair.
  */
-int get_dcookie(struct dentry * dentry, struct vfsmount * vfsmnt,
-        unsigned long * cookie)
+int get_dcookie(struct path *path, unsigned long *cookie)
 {
         int err = 0;
         struct dcookie_struct * dcs;
@@ -122,10 +119,10 @@ int get_dcookie(struct dentry * dentry, struct vfsmount * vfsmnt,
                 goto out;
         }
 
-        dcs = dentry->d_cookie;
+        dcs = path->dentry->d_cookie;
 
         if (!dcs)
-                dcs = alloc_dcookie(dentry, vfsmnt);
+                dcs = alloc_dcookie(path);
 
         if (!dcs) {
                 err = -ENOMEM;
@@ -174,7 +171,7 @@ asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user * buf, size_t len)
                 goto out;
 
         /* FIXME: (deleted) ? */
-        path = d_path(dcs->dentry, dcs->vfsmnt, kbuf, PAGE_SIZE);
+        path = d_path(&dcs->path, kbuf, PAGE_SIZE);
 
         if (IS_ERR(path)) {
                 err = PTR_ERR(path);
@@ -254,9 +251,8 @@ out_kmem:
 
 static void free_dcookie(struct dcookie_struct * dcs)
 {
-        dcs->dentry->d_cookie = NULL;
-        dput(dcs->dentry);
-        mntput(dcs->vfsmnt);
+        dcs->path.dentry->d_cookie = NULL;
+        path_put(&dcs->path);
         kmem_cache_free(dcookie_cache, dcs);
 }
 
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index fa6b7f7ff914..fddffe4851f5 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -56,13 +56,15 @@ const struct inode_operations debugfs_link_operations = {
         .follow_link    = debugfs_follow_link,
 };
 
-static void debugfs_u8_set(void *data, u64 val)
+static int debugfs_u8_set(void *data, u64 val)
 {
         *(u8 *)data = val;
+        return 0;
 }
-static u64 debugfs_u8_get(void *data)
+static int debugfs_u8_get(void *data, u64 *val)
 {
-        return *(u8 *)data;
+        *val = *(u8 *)data;
+        return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u8, debugfs_u8_get, debugfs_u8_set, "%llu\n");
 
@@ -97,13 +99,15 @@ struct dentry *debugfs_create_u8(const char *name, mode_t mode,
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u8);
 
-static void debugfs_u16_set(void *data, u64 val)
+static int debugfs_u16_set(void *data, u64 val)
 {
         *(u16 *)data = val;
+        return 0;
 }
-static u64 debugfs_u16_get(void *data)
+static int debugfs_u16_get(void *data, u64 *val)
 {
-        return *(u16 *)data;
+        *val = *(u16 *)data;
+        return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u16, debugfs_u16_get, debugfs_u16_set, "%llu\n");
 
@@ -138,13 +142,15 @@ struct dentry *debugfs_create_u16(const char *name, mode_t mode,
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u16);
 
-static void debugfs_u32_set(void *data, u64 val)
+static int debugfs_u32_set(void *data, u64 val)
 {
         *(u32 *)data = val;
+        return 0;
 }
-static u64 debugfs_u32_get(void *data)
+static int debugfs_u32_get(void *data, u64 *val)
 {
-        return *(u32 *)data;
+        *val = *(u32 *)data;
+        return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u32, debugfs_u32_get, debugfs_u32_set, "%llu\n");
 
@@ -179,14 +185,16 @@ struct dentry *debugfs_create_u32(const char *name, mode_t mode,
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u32);
 
-static void debugfs_u64_set(void *data, u64 val)
+static int debugfs_u64_set(void *data, u64 val)
 {
         *(u64 *)data = val;
+        return 0;
 }
 
-static u64 debugfs_u64_get(void *data)
+static int debugfs_u64_get(void *data, u64 *val)
 {
-        return *(u64 *)data;
+        *val = *(u64 *)data;
+        return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u64, debugfs_u64_get, debugfs_u64_set, "%llu\n");
 
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 06ef9a255c76..f120e1207874 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -20,9 +20,12 @@
 #include <linux/devpts_fs.h>
 #include <linux/parser.h>
 #include <linux/fsnotify.h>
+#include <linux/seq_file.h>
 
 #define DEVPTS_SUPER_MAGIC 0x1cd1
 
+#define DEVPTS_DEFAULT_MODE 0600
+
 static struct vfsmount *devpts_mnt;
 static struct dentry *devpts_root;
 
@@ -32,7 +35,7 @@ static struct {
         uid_t   uid;
         gid_t   gid;
         umode_t mode;
-} config = {.mode = 0600};
+} config = {.mode = DEVPTS_DEFAULT_MODE};
 
 enum {
         Opt_uid, Opt_gid, Opt_mode,
@@ -54,7 +57,7 @@ static int devpts_remount(struct super_block *sb, int *flags, char *data)
         config.setgid  = 0;
         config.uid     = 0;
         config.gid     = 0;
-        config.mode    = 0600;
+        config.mode    = DEVPTS_DEFAULT_MODE;
 
         while ((p = strsep(&data, ",")) != NULL) {
                 substring_t args[MAX_OPT_ARGS];
@@ -81,7 +84,7 @@ static int devpts_remount(struct super_block *sb, int *flags, char *data)
                 case Opt_mode:
                         if (match_octal(&args[0], &option))
                                 return -EINVAL;
-                        config.mode = option & ~S_IFMT;
+                        config.mode = option & S_IALLUGO;
                         break;
                 default:
                         printk(KERN_ERR "devpts: called with bogus options\n");
@@ -92,9 +95,21 @@ static int devpts_remount(struct super_block *sb, int *flags, char *data)
         return 0;
 }
 
+static int devpts_show_options(struct seq_file *seq, struct vfsmount *vfs)
+{
+        if (config.setuid)
+                seq_printf(seq, ",uid=%u", config.uid);
+        if (config.setgid)
+                seq_printf(seq, ",gid=%u", config.gid);
+        seq_printf(seq, ",mode=%03o", config.mode);
+
+        return 0;
+}
+
 static const struct super_operations devpts_sops = {
         .statfs         = simple_statfs,
         .remount_fs     = devpts_remount,
+        .show_options   = devpts_show_options,
 };
 
 static int
diff --git a/fs/direct-io.c b/fs/direct-io.c
index acf0da1bd257..9e81addbd6ea 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -878,8 +878,8 @@ do_holes:
                                         page_cache_release(page);
                                         goto out;
                                 }
-                                zero_user_page(page, block_in_page << blkbits,
-                                                1 << blkbits, KM_USER0);
+                                zero_user(page, block_in_page << blkbits,
+                                                1 << blkbits);
                                 dio->block_in_file++;
                                 block_in_page++;
                                 goto next_block;
diff --git a/fs/dlm/ast.c b/fs/dlm/ast.c
index 6308122890ca..8bf31e3fbf01 100644
--- a/fs/dlm/ast.c
+++ b/fs/dlm/ast.c
@@ -39,7 +39,6 @@ void dlm_add_ast(struct dlm_lkb *lkb, int type)
                 dlm_user_add_ast(lkb, type);
                 return;
         }
-        DLM_ASSERT(lkb->lkb_astaddr != DLM_FAKE_USER_AST, dlm_print_lkb(lkb););
 
         spin_lock(&ast_queue_lock);
         if (!(lkb->lkb_ast_type & (AST_COMP | AST_BAST))) {
@@ -58,8 +57,8 @@ static void process_asts(void)
         struct dlm_ls *ls = NULL;
         struct dlm_rsb *r = NULL;
         struct dlm_lkb *lkb;
-        void (*cast) (long param);
-        void (*bast) (long param, int mode);
+        void (*cast) (void *astparam);
+        void (*bast) (void *astparam, int mode);
         int type = 0, found, bmode;
 
         for (;;) {
@@ -83,8 +82,8 @@ static void process_asts(void)
                 if (!found)
                         break;
 
-                cast = lkb->lkb_astaddr;
-                bast = lkb->lkb_bastaddr;
+                cast = lkb->lkb_astfn;
+                bast = lkb->lkb_bastfn;
                 bmode = lkb->lkb_bastmode;
 
                 if ((type & AST_COMP) && cast)
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 2f8e3c81bc19..c3ad1dff3b25 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -604,7 +604,7 @@ static struct clusters clusters_root = {
         },
 };
 
-int dlm_config_init(void)
+int __init dlm_config_init(void)
 {
         config_group_init(&clusters_root.subsys.su_group);
         mutex_init(&clusters_root.subsys.su_mutex);
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index 12c3bfd5e660..8fc24f4507a3 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -162,14 +162,12 @@ static int print_resource(struct dlm_rsb *res, struct seq_file *s)
 
 static void print_lock(struct seq_file *s, struct dlm_lkb *lkb, struct dlm_rsb *r)
 {
-        struct dlm_user_args *ua;
         unsigned int waiting = 0;
         uint64_t xid = 0;
 
         if (lkb->lkb_flags & DLM_IFL_USER) {
-                ua = (struct dlm_user_args *) lkb->lkb_astparam;
-                if (ua)
-                        xid = ua->xid;
+                if (lkb->lkb_ua)
+                        xid = lkb->lkb_ua->xid;
         }
 
         if (lkb->lkb_timestamp)
@@ -543,7 +541,7 @@ void dlm_delete_debug_file(struct dlm_ls *ls)
                 debugfs_remove(ls->ls_debug_locks_dentry);
 }
 
-int dlm_register_debugfs(void)
+int __init dlm_register_debugfs(void)
 {
         mutex_init(&debug_buf_lock);
         dlm_root = debugfs_create_dir("dlm", NULL);
diff --git a/fs/dlm/dir.c b/fs/dlm/dir.c
index ff97ba924333..85defeb64df4 100644
--- a/fs/dlm/dir.c
+++ b/fs/dlm/dir.c
@@ -220,6 +220,7 @@ int dlm_recover_directory(struct dlm_ls *ls)
                 last_len = 0;
 
                 for (;;) {
+                        int left;
                         error = dlm_recovery_stopped(ls);
                         if (error)
                                 goto out_free;
@@ -235,12 +236,21 @@ int dlm_recover_directory(struct dlm_ls *ls)
                          * pick namelen/name pairs out of received buffer
                          */
 
-                        b = ls->ls_recover_buf + sizeof(struct dlm_rcom);
+                        b = ls->ls_recover_buf->rc_buf;
+                        left = ls->ls_recover_buf->rc_header.h_length;
+                        left -= sizeof(struct dlm_rcom);
 
                         for (;;) {
-                                memcpy(&namelen, b, sizeof(uint16_t));
-                                namelen = be16_to_cpu(namelen);
-                                b += sizeof(uint16_t);
+                                __be16 v;
+
+                                error = -EINVAL;
+                                if (left < sizeof(__be16))
+                                        goto out_free;
+
+                                memcpy(&v, b, sizeof(__be16));
+                                namelen = be16_to_cpu(v);
+                                b += sizeof(__be16);
+                                left -= sizeof(__be16);
 
                                 /* namelen of 0xFFFFF marks end of names for
                                    this node; namelen of 0 marks end of the
@@ -251,6 +261,12 @@ int dlm_recover_directory(struct dlm_ls *ls)
                                 if (!namelen)
                                         break;
 
+                                if (namelen > left)
+                                        goto out_free;
+
+                                if (namelen > DLM_RESNAME_MAXLEN)
+                                        goto out_free;
+
                                 error = -ENOMEM;
                                 de = get_free_de(ls, namelen);
                                 if (!de)
@@ -262,6 +278,7 @@ int dlm_recover_directory(struct dlm_ls *ls)
                                 memcpy(de->name, b, namelen);
                                 memcpy(last_name, b, namelen);
                                 b += namelen;
+                                left -= namelen;
 
                                 add_entry_to_hash(ls, de);
                                 count++;
@@ -302,6 +319,9 @@ static int get_entry(struct dlm_ls *ls, int nodeid, char *name,
 
         write_unlock(&ls->ls_dirtbl[bucket].lock);
 
+        if (namelen > DLM_RESNAME_MAXLEN)
+                return -EINVAL;
+
         de = kzalloc(sizeof(struct dlm_direntry) + namelen, GFP_KERNEL);
         if (!de)
                 return -ENOMEM;
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index ec61bbaf25df..d30ea8b433a2 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -92,8 +92,6 @@ do { \
   } \
 }
 
-#define DLM_FAKE_USER_AST ERR_PTR(-EINVAL)
-
 
 struct dlm_direntry {
         struct list_head        list;
@@ -146,9 +144,9 @@ struct dlm_recover {
 
 struct dlm_args {
         uint32_t                flags;
-        void                    *astaddr;
-        long                    astparam;
-        void                    *bastaddr;
+        void                    (*astfn) (void *astparam);
+        void                    *astparam;
+        void                    (*bastfn) (void *astparam, int mode);
         int                     mode;
         struct dlm_lksb         *lksb;
         unsigned long           timeout;
@@ -253,9 +251,12 @@ struct dlm_lkb {
 
         char                    *lkb_lvbptr;
         struct dlm_lksb         *lkb_lksb;      /* caller's status block */
-        void                    *lkb_astaddr;   /* caller's ast function */
-        void                    *lkb_bastaddr;  /* caller's bast function */
-        long                    lkb_astparam;   /* caller's ast arg */
+        void                    (*lkb_astfn) (void *astparam);
+        void                    (*lkb_bastfn) (void *astparam, int mode);
+        union {
+                void                    *lkb_astparam;  /* caller's ast arg */
+                struct dlm_user_args    *lkb_ua;
+        };
 };
 
 
@@ -403,28 +404,34 @@ struct dlm_rcom {
         char                    rc_buf[0];
 };
 
+union dlm_packet {
+        struct dlm_header       header;         /* common to other two */
+        struct dlm_message      message;
+        struct dlm_rcom         rcom;
+};
+
 struct rcom_config {
-        uint32_t                rf_lvblen;
-        uint32_t                rf_lsflags;
-        uint64_t                rf_unused;
+        __le32                  rf_lvblen;
+        __le32                  rf_lsflags;
+        __le64                  rf_unused;
 };
 
 struct rcom_lock {
-        uint32_t                rl_ownpid;
-        uint32_t                rl_lkid;
-        uint32_t                rl_remid;
-        uint32_t                rl_parent_lkid;
-        uint32_t                rl_parent_remid;
-        uint32_t                rl_exflags;
-        uint32_t                rl_flags;
-        uint32_t                rl_lvbseq;
-        int                     rl_result;
+        __le32                  rl_ownpid;
+        __le32                  rl_lkid;
+        __le32                  rl_remid;
+        __le32                  rl_parent_lkid;
+        __le32                  rl_parent_remid;
+        __le32                  rl_exflags;
+        __le32                  rl_flags;
+        __le32                  rl_lvbseq;
+        __le32                  rl_result;
         int8_t                  rl_rqmode;
         int8_t                  rl_grmode;
         int8_t                  rl_status;
         int8_t                  rl_asts;
-        uint16_t                rl_wait_type;
-        uint16_t                rl_namelen;
+        __le16                  rl_wait_type;
+        __le16                  rl_namelen;
         char                    rl_name[DLM_RESNAME_MAXLEN];
         char                    rl_lvb[0];
 };
@@ -494,7 +501,7 @@ struct dlm_ls {
         struct rw_semaphore     ls_recv_active; /* block dlm_recv */
         struct list_head        ls_requestqueue;/* queue remote requests */
         struct mutex            ls_requestqueue_mutex;
-        char                    *ls_recover_buf;
+        struct dlm_rcom         *ls_recover_buf;
         int                     ls_recover_nodeid; /* for debugging */
         uint64_t                ls_rcom_seq;
         spinlock_t              ls_rcom_spin;
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index ff4a198fa677..8f250ac8b928 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -436,11 +436,15 @@ static int find_rsb(struct dlm_ls *ls, char *name, int namelen,
 {
         struct dlm_rsb *r, *tmp;
         uint32_t hash, bucket;
-        int error = 0;
+        int error = -EINVAL;
+
+        if (namelen > DLM_RESNAME_MAXLEN)
+                goto out;
 
         if (dlm_no_directory(ls))
                 flags |= R_CREATE;
 
+        error = 0;
         hash = jhash(name, namelen, 0);
         bucket = hash & (ls->ls_rsbtbl_size - 1);
 
@@ -1222,6 +1226,8 @@ static void set_lvb_lock_pc(struct dlm_rsb *r, struct dlm_lkb *lkb,
         b = dlm_lvb_operations[lkb->lkb_grmode + 1][lkb->lkb_rqmode + 1];
         if (b == 1) {
                 int len = receive_extralen(ms);
+                if (len > DLM_RESNAME_MAXLEN)
+                        len = DLM_RESNAME_MAXLEN;
                 memcpy(lkb->lkb_lvbptr, ms->m_extra, len);
                 lkb->lkb_lvbseq = ms->m_lvbseq;
         }
@@ -1775,7 +1781,7 @@ static void grant_pending_locks(struct dlm_rsb *r)
          */
 
         list_for_each_entry_safe(lkb, s, &r->res_grantqueue, lkb_statequeue) {
-                if (lkb->lkb_bastaddr && lock_requires_bast(lkb, high, cw)) {
+                if (lkb->lkb_bastfn && lock_requires_bast(lkb, high, cw)) {
                         if (cw && high == DLM_LOCK_PR)
                                 queue_bast(r, lkb, DLM_LOCK_CW);
                         else
@@ -1805,7 +1811,7 @@ static void send_bast_queue(struct dlm_rsb *r, struct list_head *head,
         struct dlm_lkb *gr;
 
         list_for_each_entry(gr, head, lkb_statequeue) {
-                if (gr->lkb_bastaddr && modes_require_bast(gr, lkb)) {
+                if (gr->lkb_bastfn && modes_require_bast(gr, lkb)) {
                         queue_bast(r, gr, lkb->lkb_rqmode);
                         gr->lkb_highbast = lkb->lkb_rqmode;
                 }
@@ -1960,8 +1966,11 @@ static void confirm_master(struct dlm_rsb *r, int error)
 }
 
 static int set_lock_args(int mode, struct dlm_lksb *lksb, uint32_t flags,
-                         int namelen, unsigned long timeout_cs, void *ast,
-                         void *astarg, void *bast, struct dlm_args *args)
+                         int namelen, unsigned long timeout_cs,
+                         void (*ast) (void *astparam),
+                         void *astparam,
+                         void (*bast) (void *astparam, int mode),
+                         struct dlm_args *args)
 {
         int rv = -EINVAL;
 
@@ -2011,9 +2020,9 @@ static int set_lock_args(int mode, struct dlm_lksb *lksb, uint32_t flags,
            an active lkb cannot be modified before locking the rsb */
 
         args->flags = flags;
-        args->astaddr = ast;
-        args->astparam = (long) astarg;
-        args->bastaddr = bast;
+        args->astfn = ast;
+        args->astparam = astparam;
+        args->bastfn = bast;
         args->timeout = timeout_cs;
         args->mode = mode;
         args->lksb = lksb;
@@ -2032,7 +2041,7 @@ static int set_unlock_args(uint32_t flags, void *astarg, struct dlm_args *args)
                 return -EINVAL;
 
         args->flags = flags;
-        args->astparam = (long) astarg;
+        args->astparam = astarg;
         return 0;
 }
 
@@ -2062,9 +2071,9 @@ static int validate_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
 
         lkb->lkb_exflags = args->flags;
         lkb->lkb_sbflags = 0;
-        lkb->lkb_astaddr = args->astaddr;
+        lkb->lkb_astfn = args->astfn;
         lkb->lkb_astparam = args->astparam;
-        lkb->lkb_bastaddr = args->bastaddr;
+        lkb->lkb_bastfn = args->bastfn;
         lkb->lkb_rqmode = args->mode;
         lkb->lkb_lksb = args->lksb;
         lkb->lkb_lvbptr = args->lksb->sb_lvbptr;
@@ -2711,9 +2720,9 @@ static void send_args(struct dlm_rsb *r, struct dlm_lkb *lkb,
         /* m_result and m_bastmode are set from function args,
            not from lkb fields */
 
-        if (lkb->lkb_bastaddr)
+        if (lkb->lkb_bastfn)
                 ms->m_asts |= AST_BAST;
-        if (lkb->lkb_astaddr)
+        if (lkb->lkb_astfn)
                 ms->m_asts |= AST_COMP;
 
         /* compare with switch in create_message; send_remove() doesn't
@@ -2989,11 +2998,23 @@ static int receive_lvb(struct dlm_ls *ls, struct dlm_lkb *lkb,
                 if (!lkb->lkb_lvbptr)
                         return -ENOMEM;
                 len = receive_extralen(ms);
+                if (len > DLM_RESNAME_MAXLEN)
+                        len = DLM_RESNAME_MAXLEN;
                 memcpy(lkb->lkb_lvbptr, ms->m_extra, len);
         }
         return 0;
 }
 
+static void fake_bastfn(void *astparam, int mode)
+{
+        log_print("fake_bastfn should not be called");
+}
+
+static void fake_astfn(void *astparam)
+{
+        log_print("fake_astfn should not be called");
+}
+
 static int receive_request_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
                                 struct dlm_message *ms)
 {
@@ -3002,8 +3023,9 @@ static int receive_request_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
         lkb->lkb_remid = ms->m_lkid;
         lkb->lkb_grmode = DLM_LOCK_IV;
         lkb->lkb_rqmode = ms->m_rqmode;
-        lkb->lkb_bastaddr = (void *) (long) (ms->m_asts & AST_BAST);
-        lkb->lkb_astaddr = (void *) (long) (ms->m_asts & AST_COMP);
+
+        lkb->lkb_bastfn = (ms->m_asts & AST_BAST) ? &fake_bastfn : NULL;
+        lkb->lkb_astfn = (ms->m_asts & AST_COMP) ? &fake_astfn : NULL;
 
         if (lkb->lkb_exflags & DLM_LKF_VALBLK) {
                 /* lkb was just created so there won't be an lvb yet */
@@ -3802,7 +3824,7 @@ static void dlm_receive_message(struct dlm_ls *ls, struct dlm_message *ms,
                                 int nodeid)
 {
         if (dlm_locking_stopped(ls)) {
-                dlm_add_requestqueue(ls, nodeid, (struct dlm_header *) ms);
+                dlm_add_requestqueue(ls, nodeid, ms);
         } else {
                 dlm_wait_requestqueue(ls);
                 _receive_message(ls, ms);
@@ -3822,21 +3844,20 @@ void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms)
    standard locking activity) or an RCOM (recovery message sent as part of
    lockspace recovery). */
 
-void dlm_receive_buffer(struct dlm_header *hd, int nodeid)
+void dlm_receive_buffer(union dlm_packet *p, int nodeid)
 {
-        struct dlm_message *ms = (struct dlm_message *) hd;
-        struct dlm_rcom *rc = (struct dlm_rcom *) hd;
+        struct dlm_header *hd = &p->header;
         struct dlm_ls *ls;
         int type = 0;
 
         switch (hd->h_cmd) {
         case DLM_MSG:
-                dlm_message_in(ms);
-                type = ms->m_type;
+                dlm_message_in(&p->message);
+                type = p->message.m_type;
                 break;
         case DLM_RCOM:
-                dlm_rcom_in(rc);
-                type = rc->rc_type;
+                dlm_rcom_in(&p->rcom);
+                type = p->rcom.rc_type;
                 break;
         default:
                 log_print("invalid h_cmd %d from %u", hd->h_cmd, nodeid);
@@ -3856,7 +3877,7 @@ void dlm_receive_buffer(struct dlm_header *hd, int nodeid)
                                   hd->h_lockspace, nodeid, hd->h_cmd, type);
 
                 if (hd->h_cmd == DLM_RCOM && type == DLM_RCOM_STATUS)
-                        dlm_send_ls_not_ready(nodeid, rc);
+                        dlm_send_ls_not_ready(nodeid, &p->rcom);
                 return;
         }
 
@@ -3865,9 +3886,9 @@ void dlm_receive_buffer(struct dlm_header *hd, int nodeid)
 
         down_read(&ls->ls_recv_active);
         if (hd->h_cmd == DLM_MSG)
-                dlm_receive_message(ls, ms, nodeid);
+                dlm_receive_message(ls, &p->message, nodeid);
         else
-                dlm_receive_rcom(ls, rc, nodeid);
+                dlm_receive_rcom(ls, &p->rcom, nodeid);
         up_read(&ls->ls_recv_active);
 
         dlm_put_lockspace(ls);
@@ -4267,32 +4288,34 @@ static struct dlm_lkb *search_remid(struct dlm_rsb *r, int nodeid,
         return NULL;
 }
 
+/* needs at least dlm_rcom + rcom_lock */
 static int receive_rcom_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
                                   struct dlm_rsb *r, struct dlm_rcom *rc)
 {
         struct rcom_lock *rl = (struct rcom_lock *) rc->rc_buf;
-        int lvblen;
 
         lkb->lkb_nodeid = rc->rc_header.h_nodeid;
-        lkb->lkb_ownpid = rl->rl_ownpid;
-        lkb->lkb_remid = rl->rl_lkid;
-        lkb->lkb_exflags = rl->rl_exflags;
-        lkb->lkb_flags = rl->rl_flags & 0x0000FFFF;
+        lkb->lkb_ownpid = le32_to_cpu(rl->rl_ownpid);
+        lkb->lkb_remid = le32_to_cpu(rl->rl_lkid);
+        lkb->lkb_exflags = le32_to_cpu(rl->rl_exflags);
+        lkb->lkb_flags = le32_to_cpu(rl->rl_flags) & 0x0000FFFF;
         lkb->lkb_flags |= DLM_IFL_MSTCPY;
-        lkb->lkb_lvbseq = rl->rl_lvbseq;
+        lkb->lkb_lvbseq = le32_to_cpu(rl->rl_lvbseq);
         lkb->lkb_rqmode = rl->rl_rqmode;
         lkb->lkb_grmode = rl->rl_grmode;
         /* don't set lkb_status because add_lkb wants to itself */
 
-        lkb->lkb_bastaddr = (void *) (long) (rl->rl_asts & AST_BAST);
-        lkb->lkb_astaddr = (void *) (long) (rl->rl_asts & AST_COMP);
+        lkb->lkb_bastfn = (rl->rl_asts & AST_BAST) ? &fake_bastfn : NULL;
+        lkb->lkb_astfn = (rl->rl_asts & AST_COMP) ? &fake_astfn : NULL;
 
         if (lkb->lkb_exflags & DLM_LKF_VALBLK) {
+                int lvblen = rc->rc_header.h_length - sizeof(struct dlm_rcom) -
+                         sizeof(struct rcom_lock);
+                if (lvblen > ls->ls_lvblen)
+                        return -EINVAL;
                 lkb->lkb_lvbptr = dlm_allocate_lvb(ls);
                 if (!lkb->lkb_lvbptr)
                         return -ENOMEM;
-                lvblen = rc->rc_header.h_length - sizeof(struct dlm_rcom) -
-                         sizeof(struct rcom_lock);
                 memcpy(lkb->lkb_lvbptr, rl->rl_lvb, lvblen);
         }
 
@@ -4300,7 +4323,8 @@ static int receive_rcom_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
            The real granted mode of these converting locks cannot be determined
            until all locks have been rebuilt on the rsb (recover_conversion) */
 
-        if (rl->rl_wait_type == DLM_MSG_CONVERT && middle_conversion(lkb)) {
+        if (rl->rl_wait_type == cpu_to_le16(DLM_MSG_CONVERT) &&
+            middle_conversion(lkb)) {
                 rl->rl_status = DLM_LKSTS_CONVERT;
                 lkb->lkb_grmode = DLM_LOCK_IV;
                 rsb_set_flag(r, RSB_RECOVER_CONVERT);
@@ -4315,6 +4339,7 @@ static int receive_rcom_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
    the given values and send back our lkid.  We send back our lkid by sending
    back the rcom_lock struct we got but with the remid field filled in. */
 
+/* needs at least dlm_rcom + rcom_lock */
 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
 {
         struct rcom_lock *rl = (struct rcom_lock *) rc->rc_buf;
@@ -4327,13 +4352,14 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
                 goto out;
         }
 
-        error = find_rsb(ls, rl->rl_name, rl->rl_namelen, R_MASTER, &r);
+        error = find_rsb(ls, rl->rl_name, le16_to_cpu(rl->rl_namelen),
+                         R_MASTER, &r);
         if (error)
                 goto out;
 
         lock_rsb(r);
 
-        lkb = search_remid(r, rc->rc_header.h_nodeid, rl->rl_lkid);
+        lkb = search_remid(r, rc->rc_header.h_nodeid, le32_to_cpu(rl->rl_lkid));
         if (lkb) {
                 error = -EEXIST;
                 goto out_remid;
@@ -4356,18 +4382,20 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
  out_remid:
         /* this is the new value returned to the lock holder for
            saving in its process-copy lkb */
-        rl->rl_remid = lkb->lkb_id;
+        rl->rl_remid = cpu_to_le32(lkb->lkb_id);
 
  out_unlock:
         unlock_rsb(r);
         put_rsb(r);
  out:
         if (error)
-                log_debug(ls, "recover_master_copy %d %x", error, rl->rl_lkid);
-        rl->rl_result = error;
+                log_debug(ls, "recover_master_copy %d %x", error,
+                          le32_to_cpu(rl->rl_lkid));
+        rl->rl_result = cpu_to_le32(error);
         return error;
 }
 
+/* needs at least dlm_rcom + rcom_lock */
 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
 {
         struct rcom_lock *rl = (struct rcom_lock *) rc->rc_buf;
@@ -4375,15 +4403,16 @@ int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
         struct dlm_lkb *lkb;
         int error;
 
-        error = find_lkb(ls, rl->rl_lkid, &lkb);
+        error = find_lkb(ls, le32_to_cpu(rl->rl_lkid), &lkb);
         if (error) {
-                log_error(ls, "recover_process_copy no lkid %x", rl->rl_lkid);
+                log_error(ls, "recover_process_copy no lkid %x",
+                                le32_to_cpu(rl->rl_lkid));
                 return error;
         }
 
         DLM_ASSERT(is_process_copy(lkb), dlm_print_lkb(lkb););
 
-        error = rl->rl_result;
+        error = le32_to_cpu(rl->rl_result);
 
         r = lkb->lkb_resource;
         hold_rsb(r);
@@ -4402,7 +4431,7 @@ int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
                 log_debug(ls, "master copy exists %x", lkb->lkb_id);
                 /* fall through */
         case 0:
-                lkb->lkb_remid = rl->rl_remid;
+                lkb->lkb_remid = le32_to_cpu(rl->rl_remid);
                 break;
         default:
                 log_error(ls, "dlm_recover_process_copy unknown error %d %x",
@@ -4451,7 +4480,7 @@ int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua,
            lock and that lkb_astparam is the dlm_user_args structure. */
 
         error = set_lock_args(mode, &ua->lksb, flags, namelen, timeout_cs,
-                              DLM_FAKE_USER_AST, ua, DLM_FAKE_USER_AST, &args);
+                              fake_astfn, ua, fake_bastfn, &args);
         lkb->lkb_flags |= DLM_IFL_USER;
         ua->old_mode = DLM_LOCK_IV;
 
@@ -4504,7 +4533,7 @@ int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
         /* user can change the params on its lock when it converts it, or
            add an lvb that didn't exist before */
 
-        ua = (struct dlm_user_args *)lkb->lkb_astparam;
+        ua = lkb->lkb_ua;
 
         if (flags & DLM_LKF_VALBLK && !ua->lksb.sb_lvbptr) {
                 ua->lksb.sb_lvbptr = kzalloc(DLM_USER_LVB_LEN, GFP_KERNEL);
@@ -4525,7 +4554,7 @@ int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
         ua->old_mode = lkb->lkb_grmode;
 
         error = set_lock_args(mode, &ua->lksb, flags, 0, timeout_cs,
-                              DLM_FAKE_USER_AST, ua, DLM_FAKE_USER_AST, &args);
+                              fake_astfn, ua, fake_bastfn, &args);
         if (error)
                 goto out_put;
 
@@ -4555,7 +4584,7 @@ int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
         if (error)
                 goto out;
 
-        ua = (struct dlm_user_args *)lkb->lkb_astparam;
+        ua = lkb->lkb_ua;
 
         if (lvb_in && ua->lksb.sb_lvbptr)
                 memcpy(ua->lksb.sb_lvbptr, lvb_in, DLM_USER_LVB_LEN);
@@ -4604,7 +4633,7 @@ int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
         if (error)
                 goto out;
 
-        ua = (struct dlm_user_args *)lkb->lkb_astparam;
+        ua = lkb->lkb_ua;
         if (ua_tmp->castparam)
                 ua->castparam = ua_tmp->castparam;
         ua->user_lksb = ua_tmp->user_lksb;
@@ -4642,7 +4671,7 @@ int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid)
         if (error)
                 goto out;
 
-        ua = (struct dlm_user_args *)lkb->lkb_astparam;
+        ua = lkb->lkb_ua;
 
         error = set_unlock_args(flags, ua, &args);
         if (error)
@@ -4681,7 +4710,6 @@ int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid)
 
 static int orphan_proc_lock(struct dlm_ls *ls, struct dlm_lkb *lkb)
 {
-        struct dlm_user_args *ua = (struct dlm_user_args *)lkb->lkb_astparam;
         struct dlm_args args;
         int error;
 
@@ -4690,7 +4718,7 @@ static int orphan_proc_lock(struct dlm_ls *ls, struct dlm_lkb *lkb)
         list_add_tail(&lkb->lkb_ownqueue, &ls->ls_orphans);
         mutex_unlock(&ls->ls_orphans_mutex);
 
-        set_unlock_args(0, ua, &args);
+        set_unlock_args(0, lkb->lkb_ua, &args);
 
         error = cancel_lock(ls, lkb, &args);
         if (error == -DLM_ECANCEL)
@@ -4703,11 +4731,10 @@ static int orphan_proc_lock(struct dlm_ls *ls, struct dlm_lkb *lkb)
 
 static int unlock_proc_lock(struct dlm_ls *ls, struct dlm_lkb *lkb)
 {
-        struct dlm_user_args *ua = (struct dlm_user_args *)lkb->lkb_astparam;
         struct dlm_args args;
         int error;
 
-        set_unlock_args(DLM_LKF_FORCEUNLOCK, ua, &args);
+        set_unlock_args(DLM_LKF_FORCEUNLOCK, lkb->lkb_ua, &args);
 
         error = unlock_lock(ls, lkb, &args);
         if (error == -DLM_EUNLOCK)
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h
index 27b6ed302911..05d9c82e646b 100644
--- a/fs/dlm/lock.h
+++ b/fs/dlm/lock.h
@@ -17,7 +17,7 @@ void dlm_print_rsb(struct dlm_rsb *r);
 void dlm_dump_rsb(struct dlm_rsb *r);
 void dlm_print_lkb(struct dlm_lkb *lkb);
 void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
-void dlm_receive_buffer(struct dlm_header *hd, int nodeid);
+void dlm_receive_buffer(union dlm_packet *p, int nodeid);
 int dlm_modes_compat(int mode1, int mode2);
 void dlm_put_rsb(struct dlm_rsb *r);
 void dlm_hold_rsb(struct dlm_rsb *r);
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index b180fdc51085..b64e55e0515d 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -191,7 +191,7 @@ static int do_uevent(struct dlm_ls *ls, int in)
 }
 
 
-int dlm_lockspace_init(void)
+int __init dlm_lockspace_init(void)
 {
         ls_count = 0;
         mutex_init(&ls_lock);
diff --git a/fs/dlm/memory.c b/fs/dlm/memory.c
index f7783867491a..54c14c6d06cb 100644
--- a/fs/dlm/memory.c
+++ b/fs/dlm/memory.c
@@ -18,7 +18,7 @@
 static struct kmem_cache *lkb_cache;
 
 
-int dlm_memory_init(void)
+int __init dlm_memory_init(void)
 {
         int ret = 0;
 
@@ -80,7 +80,7 @@ void dlm_free_lkb(struct dlm_lkb *lkb)
 {
         if (lkb->lkb_flags & DLM_IFL_USER) {
                 struct dlm_user_args *ua;
-                ua = (struct dlm_user_args *)lkb->lkb_astparam;
+                ua = lkb->lkb_ua;
                 if (ua) {
                         if (ua->lksb.sb_lvbptr)
                                 kfree(ua->lksb.sb_lvbptr);
diff --git a/fs/dlm/midcomms.c b/fs/dlm/midcomms.c
index e69926e984db..07ac709f3ed7 100644
--- a/fs/dlm/midcomms.c
+++ b/fs/dlm/midcomms.c
@@ -61,9 +61,9 @@ int dlm_process_incoming_buffer(int nodeid, const void *base,
         union {
                 unsigned char __buf[DLM_INBUF_LEN];
                 /* this is to force proper alignment on some arches */
-                struct dlm_header dlm;
+                union dlm_packet p;
         } __tmp;
-        struct dlm_header *msg = &__tmp.dlm;
+        union dlm_packet *p = &__tmp.p;
         int ret = 0;
         int err = 0;
         uint16_t msglen;
@@ -75,15 +75,22 @@ int dlm_process_incoming_buffer(int nodeid, const void *base,
                    message may wrap around the end of the buffer back to the
                    start, so we need to use a temp buffer and copy_from_cb. */
 
-                copy_from_cb(msg, base, offset, sizeof(struct dlm_header),
+                copy_from_cb(p, base, offset, sizeof(struct dlm_header),
                              limit);
 
-                msglen = le16_to_cpu(msg->h_length);
-                lockspace = msg->h_lockspace;
+                msglen = le16_to_cpu(p->header.h_length);
+                lockspace = p->header.h_lockspace;
 
                 err = -EINVAL;
                 if (msglen < sizeof(struct dlm_header))
                         break;
+                if (p->header.h_cmd == DLM_MSG) {
+                        if (msglen < sizeof(struct dlm_message))
+                                break;
+                } else {
+                        if (msglen < sizeof(struct dlm_rcom))
+                                break;
+                }
                 err = -E2BIG;
                 if (msglen > dlm_config.ci_buffer_size) {
                         log_print("message size %d from %d too big, buf len %d",
@@ -104,26 +111,26 @@ int dlm_process_incoming_buffer(int nodeid, const void *base,
                    in the buffer on the stack (which should work for most
                    ordinary messages). */
 
-                if (msglen > DLM_INBUF_LEN && msg == &__tmp.dlm) {
-                        msg = kmalloc(dlm_config.ci_buffer_size, GFP_KERNEL);
-                        if (msg == NULL)
+                if (msglen > sizeof(__tmp) && p == &__tmp.p) {
+                        p = kmalloc(dlm_config.ci_buffer_size, GFP_KERNEL);
+                        if (p == NULL)
                                 return ret;
                 }
 
-                copy_from_cb(msg, base, offset, msglen, limit);
+                copy_from_cb(p, base, offset, msglen, limit);
 
-                BUG_ON(lockspace != msg->h_lockspace);
+                BUG_ON(lockspace != p->header.h_lockspace);
 
                 ret += msglen;
                 offset += msglen;
                 offset &= (limit - 1);
                 len -= msglen;
 
-                dlm_receive_buffer(msg, nodeid);
+                dlm_receive_buffer(p, nodeid);
         }
 
-        if (msg != &__tmp.dlm)
-                kfree(msg);
+        if (p != &__tmp.p)
+                kfree(p);
 
         return err ? err : ret;
 }
diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c
index 863b87d0dc71..714593621f4f 100644
--- a/fs/dlm/netlink.c
+++ b/fs/dlm/netlink.c
@@ -78,7 +78,7 @@ static struct genl_ops dlm_nl_ops = {
         .doit           = user_cmd,
 };
 
-int dlm_netlink_init(void)
+int __init dlm_netlink_init(void)
 {
         int rv;
 
@@ -95,7 +95,7 @@ int dlm_netlink_init(void)
         return rv;
 }
 
-void dlm_netlink_exit(void)
+void __exit dlm_netlink_exit(void)
 {
         genl_unregister_ops(&family, &dlm_nl_ops);
         genl_unregister_family(&family);
@@ -104,7 +104,6 @@ void dlm_netlink_exit(void)
 static void fill_data(struct dlm_lock_data *data, struct dlm_lkb *lkb)
 {
         struct dlm_rsb *r = lkb->lkb_resource;
-        struct dlm_user_args *ua = (struct dlm_user_args *) lkb->lkb_astparam;
 
         memset(data, 0, sizeof(struct dlm_lock_data));
 
@@ -117,8 +116,8 @@ static void fill_data(struct dlm_lock_data *data, struct dlm_lkb *lkb)
         data->grmode = lkb->lkb_grmode;
         data->rqmode = lkb->lkb_rqmode;
         data->timestamp = lkb->lkb_timestamp;
-        if (ua)
-                data->xid = ua->xid;
+        if (lkb->lkb_ua)
+                data->xid = lkb->lkb_ua->xid;
         if (r) {
                 data->lockspace_id = r->res_ls->ls_global_id;
                 data->resource_namelen = r->res_length;
diff --git a/fs/dlm/rcom.c b/fs/dlm/rcom.c
index 026824cd3acb..035e6f9990b0 100644
--- a/fs/dlm/rcom.c
+++ b/fs/dlm/rcom.c
@@ -78,13 +78,14 @@ static void send_rcom(struct dlm_ls *ls, struct dlm_mhandle *mh,
 
 static void make_config(struct dlm_ls *ls, struct rcom_config *rf)
 {
-        rf->rf_lvblen = ls->ls_lvblen;
-        rf->rf_lsflags = ls->ls_exflags;
+        rf->rf_lvblen = cpu_to_le32(ls->ls_lvblen);
+        rf->rf_lsflags = cpu_to_le32(ls->ls_exflags);
 }
 
 static int check_config(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
 {
         struct rcom_config *rf = (struct rcom_config *) rc->rc_buf;
+        size_t conf_size = sizeof(struct dlm_rcom) + sizeof(struct rcom_config);
 
         if ((rc->rc_header.h_version & 0xFFFF0000) != DLM_HEADER_MAJOR) {
                 log_error(ls, "version mismatch: %x nodeid %d: %x",
@@ -93,11 +94,18 @@ static int check_config(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
                 return -EPROTO;
         }
 
-        if (rf->rf_lvblen != ls->ls_lvblen ||
-            rf->rf_lsflags != ls->ls_exflags) {
+        if (rc->rc_header.h_length < conf_size) {
+                log_error(ls, "config too short: %d nodeid %d",
+                          rc->rc_header.h_length, nodeid);
+                return -EPROTO;
+        }
+
+        if (le32_to_cpu(rf->rf_lvblen) != ls->ls_lvblen ||
+            le32_to_cpu(rf->rf_lsflags) != ls->ls_exflags) {
                 log_error(ls, "config mismatch: %d,%x nodeid %d: %d,%x",
-                          ls->ls_lvblen, ls->ls_exflags,
-                          nodeid, rf->rf_lvblen, rf->rf_lsflags);
+                          ls->ls_lvblen, ls->ls_exflags, nodeid,
+                          le32_to_cpu(rf->rf_lvblen),
+                          le32_to_cpu(rf->rf_lsflags));
                 return -EPROTO;
         }
         return 0;
@@ -128,7 +136,7 @@ int dlm_rcom_status(struct dlm_ls *ls, int nodeid)
         ls->ls_recover_nodeid = nodeid;
 
         if (nodeid == dlm_our_nodeid()) {
-                rc = (struct dlm_rcom *) ls->ls_recover_buf;
+                rc = ls->ls_recover_buf;
                 rc->rc_result = dlm_recover_status(ls);
                 goto out;
         }
@@ -147,7 +155,7 @@ int dlm_rcom_status(struct dlm_ls *ls, int nodeid)
         if (error)
                 goto out;
 
-        rc = (struct dlm_rcom *) ls->ls_recover_buf;
+        rc = ls->ls_recover_buf;
 
         if (rc->rc_result == -ESRCH) {
                 /* we pretend the remote lockspace exists with 0 status */
@@ -201,14 +209,15 @@ int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name, int last_len)
 {
         struct dlm_rcom *rc;
         struct dlm_mhandle *mh;
-        int error = 0, len = sizeof(struct dlm_rcom);
+        int error = 0;
+        int max_size = dlm_config.ci_buffer_size - sizeof(struct dlm_rcom);
 
         ls->ls_recover_nodeid = nodeid;
 
         if (nodeid == dlm_our_nodeid()) {
                 dlm_copy_master_names(ls, last_name, last_len,
-                                      ls->ls_recover_buf + len,
-                                      dlm_config.ci_buffer_size - len, nodeid);
+                                      ls->ls_recover_buf->rc_buf,
+                                      max_size, nodeid);
                 goto out;
         }
 
@@ -299,22 +308,22 @@ static void pack_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb,
 {
         memset(rl, 0, sizeof(*rl));
 
-        rl->rl_ownpid = lkb->lkb_ownpid;
-        rl->rl_lkid = lkb->lkb_id;
-        rl->rl_exflags = lkb->lkb_exflags;
-        rl->rl_flags = lkb->lkb_flags;
-        rl->rl_lvbseq = lkb->lkb_lvbseq;
+        rl->rl_ownpid = cpu_to_le32(lkb->lkb_ownpid);
+        rl->rl_lkid = cpu_to_le32(lkb->lkb_id);
+        rl->rl_exflags = cpu_to_le32(lkb->lkb_exflags);
+        rl->rl_flags = cpu_to_le32(lkb->lkb_flags);
+        rl->rl_lvbseq = cpu_to_le32(lkb->lkb_lvbseq);
         rl->rl_rqmode = lkb->lkb_rqmode;
         rl->rl_grmode = lkb->lkb_grmode;
         rl->rl_status = lkb->lkb_status;
-        rl->rl_wait_type = lkb->lkb_wait_type;
+        rl->rl_wait_type = cpu_to_le16(lkb->lkb_wait_type);
 
-        if (lkb->lkb_bastaddr)
+        if (lkb->lkb_bastfn)
                 rl->rl_asts |= AST_BAST;
-        if (lkb->lkb_astaddr)
+        if (lkb->lkb_astfn)
                 rl->rl_asts |= AST_COMP;
 
-        rl->rl_namelen = r->res_length;
+        rl->rl_namelen = cpu_to_le16(r->res_length);
         memcpy(rl->rl_name, r->res_name, r->res_length);
 
         /* FIXME: might we have an lvb without DLM_LKF_VALBLK set ?
@@ -348,6 +357,7 @@ int dlm_send_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb)
         return error;
 }
 
+/* needs at least dlm_rcom + rcom_lock */
 static void receive_rcom_lock(struct dlm_ls *ls, struct dlm_rcom *rc_in)
 {
         struct dlm_rcom *rc;
@@ -401,7 +411,7 @@ int dlm_send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in)
         rc->rc_result = -ESRCH;
 
         rf = (struct rcom_config *) rc->rc_buf;
-        rf->rf_lvblen = -1;
+        rf->rf_lvblen = cpu_to_le32(~0U);
 
         dlm_rcom_out(rc);
         dlm_lowcomms_commit_buffer(mh);
@@ -439,6 +449,8 @@ static int is_old_reply(struct dlm_ls *ls, struct dlm_rcom *rc)
 
 void dlm_receive_rcom(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
 {
+        int lock_size = sizeof(struct dlm_rcom) + sizeof(struct rcom_lock);
+
         if (dlm_recovery_stopped(ls) && (rc->rc_type != DLM_RCOM_STATUS)) {
                 log_debug(ls, "ignoring recovery message %x from %d",
                           rc->rc_type, nodeid);
@@ -462,6 +474,8 @@ void dlm_receive_rcom(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
                 break;
 
         case DLM_RCOM_LOCK:
+                if (rc->rc_header.h_length < lock_size)
+                        goto Eshort;
                 receive_rcom_lock(ls, rc);
                 break;
 
@@ -478,13 +492,18 @@ void dlm_receive_rcom(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
                 break;
 
         case DLM_RCOM_LOCK_REPLY:
+                if (rc->rc_header.h_length < lock_size)
+                        goto Eshort;
                 dlm_recover_process_copy(ls, rc);
                 break;
 
         default:
                 log_error(ls, "receive_rcom bad type %d", rc->rc_type);
         }
- out:
+out:
         return;
+Eshort:
+        log_error(ls, "recovery message %x from %d is too short",
+                          rc->rc_type, nodeid);
 }
 
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index df075dc300fa..80aba5bdd4a4 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -94,7 +94,7 @@ void dlm_set_recover_status(struct dlm_ls *ls, uint32_t status)
 
 static int wait_status_all(struct dlm_ls *ls, uint32_t wait_status)
 {
-        struct dlm_rcom *rc = (struct dlm_rcom *) ls->ls_recover_buf;
+        struct dlm_rcom *rc = ls->ls_recover_buf;
         struct dlm_member *memb;
         int error = 0, delay;
 
@@ -123,7 +123,7 @@ static int wait_status_all(struct dlm_ls *ls, uint32_t wait_status)
 
 static int wait_status_low(struct dlm_ls *ls, uint32_t wait_status)
 {
-        struct dlm_rcom *rc = (struct dlm_rcom *) ls->ls_recover_buf;
+        struct dlm_rcom *rc = ls->ls_recover_buf;
         int error = 0, delay = 0, nodeid = ls->ls_low_nodeid;
 
         for (;;) {
diff --git a/fs/dlm/requestqueue.c b/fs/dlm/requestqueue.c
index 0de04f17ccea..daa4183fbb84 100644
--- a/fs/dlm/requestqueue.c
+++ b/fs/dlm/requestqueue.c
@@ -20,7 +20,7 @@
 struct rq_entry {
         struct list_head list;
         int nodeid;
-        char request[0];
+        struct dlm_message request;
 };
 
 /*
@@ -30,10 +30,10 @@ struct rq_entry {
  * lockspace is enabled on some while still suspended on others.
  */
 
-void dlm_add_requestqueue(struct dlm_ls *ls, int nodeid, struct dlm_header *hd)
+void dlm_add_requestqueue(struct dlm_ls *ls, int nodeid, struct dlm_message *ms)
 {
         struct rq_entry *e;
-        int length = hd->h_length;
+        int length = ms->m_header.h_length - sizeof(struct dlm_message);
 
         e = kmalloc(sizeof(struct rq_entry) + length, GFP_KERNEL);
         if (!e) {
@@ -42,7 +42,7 @@ void dlm_add_requestqueue(struct dlm_ls *ls, int nodeid, struct dlm_header *hd)
         }
 
         e->nodeid = nodeid;
-        memcpy(e->request, hd, length);
+        memcpy(&e->request, ms, ms->m_header.h_length);
 
         mutex_lock(&ls->ls_requestqueue_mutex);
         list_add_tail(&e->list, &ls->ls_requestqueue);
@@ -76,7 +76,7 @@ int dlm_process_requestqueue(struct dlm_ls *ls)
                 e = list_entry(ls->ls_requestqueue.next, struct rq_entry, list);
                 mutex_unlock(&ls->ls_requestqueue_mutex);
 
-                dlm_receive_message_saved(ls, (struct dlm_message *)e->request);
+                dlm_receive_message_saved(ls, &e->request);
 
                 mutex_lock(&ls->ls_requestqueue_mutex);
                 list_del(&e->list);
@@ -176,7 +176,7 @@ void dlm_purge_requestqueue(struct dlm_ls *ls)
 
         mutex_lock(&ls->ls_requestqueue_mutex);
         list_for_each_entry_safe(e, safe, &ls->ls_requestqueue, list) {
-                ms = (struct dlm_message *) e->request;
+                ms =  &e->request;
 
                 if (purge_request(ls, ms, e->nodeid)) {
                         list_del(&e->list);
diff --git a/fs/dlm/requestqueue.h b/fs/dlm/requestqueue.h
index aba34fc05ee4..10ce449b77da 100644
--- a/fs/dlm/requestqueue.h
+++ b/fs/dlm/requestqueue.h
@@ -13,7 +13,7 @@
 #ifndef __REQUESTQUEUE_DOT_H__
 #define __REQUESTQUEUE_DOT_H__
 
-void dlm_add_requestqueue(struct dlm_ls *ls, int nodeid, struct dlm_header *hd);
+void dlm_add_requestqueue(struct dlm_ls *ls, int nodeid, struct dlm_message *ms);
 int dlm_process_requestqueue(struct dlm_ls *ls);
 void dlm_wait_requestqueue(struct dlm_ls *ls);
 void dlm_purge_requestqueue(struct dlm_ls *ls);
diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index 7cbc6826239b..ebbcf38fd33b 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -82,7 +82,7 @@ struct dlm_lock_result32 {
 
 static void compat_input(struct dlm_write_request *kb,
                          struct dlm_write_request32 *kb32,
-                         int max_namelen)
+                         size_t count)
 {
         kb->version[0] = kb32->version[0];
         kb->version[1] = kb32->version[1];
@@ -94,7 +94,8 @@ static void compat_input(struct dlm_write_request *kb,
             kb->cmd == DLM_USER_REMOVE_LOCKSPACE) {
                 kb->i.lspace.flags = kb32->i.lspace.flags;
                 kb->i.lspace.minor = kb32->i.lspace.minor;
-                strcpy(kb->i.lspace.name, kb32->i.lspace.name);
+                memcpy(kb->i.lspace.name, kb32->i.lspace.name, count -
+                        offsetof(struct dlm_write_request32, i.lspace.name));
         } else if (kb->cmd == DLM_USER_PURGE) {
                 kb->i.purge.nodeid = kb32->i.purge.nodeid;
                 kb->i.purge.pid = kb32->i.purge.pid;
@@ -112,11 +113,8 @@ static void compat_input(struct dlm_write_request *kb,
                 kb->i.lock.bastaddr = (void *)(long)kb32->i.lock.bastaddr;
                 kb->i.lock.lksb = (void *)(long)kb32->i.lock.lksb;
                 memcpy(kb->i.lock.lvb, kb32->i.lock.lvb, DLM_USER_LVB_LEN);
-                if (kb->i.lock.namelen <= max_namelen)
-                        memcpy(kb->i.lock.name, kb32->i.lock.name,
-                               kb->i.lock.namelen);
-                else
-                        kb->i.lock.namelen = max_namelen;
+                memcpy(kb->i.lock.name, kb32->i.lock.name, count -
+                        offsetof(struct dlm_write_request32, i.lock.name));
         }
 }
 
@@ -197,8 +195,8 @@ void dlm_user_add_ast(struct dlm_lkb *lkb, int type)
         if (lkb->lkb_flags & (DLM_IFL_ORPHAN | DLM_IFL_DEAD))
                 goto out;
 
-        DLM_ASSERT(lkb->lkb_astparam, dlm_print_lkb(lkb););
-        ua = (struct dlm_user_args *)lkb->lkb_astparam;
+        DLM_ASSERT(lkb->lkb_ua, dlm_print_lkb(lkb););
+        ua = lkb->lkb_ua;
         proc = ua->proc;
 
         if (type == AST_BAST && ua->bastaddr == NULL)
@@ -508,7 +506,7 @@ static ssize_t device_write(struct file *file, const char __user *buf,
 #endif
                 return -EINVAL;
 
-        kbuf = kmalloc(count, GFP_KERNEL);
+        kbuf = kzalloc(count + 1, GFP_KERNEL);
         if (!kbuf)
                 return -ENOMEM;
 
@@ -526,15 +524,14 @@ static ssize_t device_write(struct file *file, const char __user *buf,
         if (!kbuf->is64bit) {
                 struct dlm_write_request32 *k32buf;
                 k32buf = (struct dlm_write_request32 *)kbuf;
-                kbuf = kmalloc(count + (sizeof(struct dlm_write_request) -
+                kbuf = kmalloc(count + 1 + (sizeof(struct dlm_write_request) -
                                sizeof(struct dlm_write_request32)), GFP_KERNEL);
                 if (!kbuf)
                         return -ENOMEM;
 
                 if (proc)
                         set_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags);
-                compat_input(kbuf, k32buf,
-                             count - sizeof(struct dlm_write_request32));
+                compat_input(kbuf, k32buf, count + 1);
                 kfree(k32buf);
         }
 #endif
@@ -774,7 +771,6 @@ static ssize_t device_read(struct file *file, char __user *buf, size_t count,
 {
         struct dlm_user_proc *proc = file->private_data;
         struct dlm_lkb *lkb;
-        struct dlm_user_args *ua;
         DECLARE_WAITQUEUE(wait, current);
         int error, type=0, bmode=0, removed = 0;
 
@@ -845,8 +841,7 @@ static ssize_t device_read(struct file *file, char __user *buf, size_t count,
         }
         spin_unlock(&proc->asts_spin);
 
-        ua = (struct dlm_user_args *)lkb->lkb_astparam;
-        error = copy_result_to_user(ua,
+        error = copy_result_to_user(lkb->lkb_ua,
                                 test_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags),
                                 type, bmode, buf, count);
 
@@ -907,7 +902,7 @@ static struct miscdevice ctl_device = {
         .minor = MISC_DYNAMIC_MINOR,
 };
 
-int dlm_user_init(void)
+int __init dlm_user_init(void)
 {
         int error;
 
diff --git a/fs/dlm/util.c b/fs/dlm/util.c
index 4d9c1f4e1bd1..e36520af7cc0 100644
--- a/fs/dlm/util.c
+++ b/fs/dlm/util.c
@@ -131,52 +131,8 @@ void dlm_message_in(struct dlm_message *ms)
         ms->m_result            = from_dlm_errno(le32_to_cpu(ms->m_result));
 }
 
-static void rcom_lock_out(struct rcom_lock *rl)
-{
-        rl->rl_ownpid           = cpu_to_le32(rl->rl_ownpid);
-        rl->rl_lkid             = cpu_to_le32(rl->rl_lkid);
-        rl->rl_remid            = cpu_to_le32(rl->rl_remid);
-        rl->rl_parent_lkid      = cpu_to_le32(rl->rl_parent_lkid);
-        rl->rl_parent_remid     = cpu_to_le32(rl->rl_parent_remid);
-        rl->rl_exflags          = cpu_to_le32(rl->rl_exflags);
-        rl->rl_flags            = cpu_to_le32(rl->rl_flags);
-        rl->rl_lvbseq           = cpu_to_le32(rl->rl_lvbseq);
-        rl->rl_result           = cpu_to_le32(rl->rl_result);
-        rl->rl_wait_type        = cpu_to_le16(rl->rl_wait_type);
-        rl->rl_namelen          = cpu_to_le16(rl->rl_namelen);
-}
-
-static void rcom_lock_in(struct rcom_lock *rl)
-{
-        rl->rl_ownpid           = le32_to_cpu(rl->rl_ownpid);
-        rl->rl_lkid             = le32_to_cpu(rl->rl_lkid);
-        rl->rl_remid            = le32_to_cpu(rl->rl_remid);
-        rl->rl_parent_lkid      = le32_to_cpu(rl->rl_parent_lkid);
-        rl->rl_parent_remid     = le32_to_cpu(rl->rl_parent_remid);
-        rl->rl_exflags          = le32_to_cpu(rl->rl_exflags);
-        rl->rl_flags            = le32_to_cpu(rl->rl_flags);
-        rl->rl_lvbseq           = le32_to_cpu(rl->rl_lvbseq);
-        rl->rl_result           = le32_to_cpu(rl->rl_result);
-        rl->rl_wait_type        = le16_to_cpu(rl->rl_wait_type);
-        rl->rl_namelen          = le16_to_cpu(rl->rl_namelen);
-}
-
-static void rcom_config_out(struct rcom_config *rf)
-{
-        rf->rf_lvblen           = cpu_to_le32(rf->rf_lvblen);
-        rf->rf_lsflags          = cpu_to_le32(rf->rf_lsflags);
-}
-
-static void rcom_config_in(struct rcom_config *rf)
-{
-        rf->rf_lvblen           = le32_to_cpu(rf->rf_lvblen);
-        rf->rf_lsflags          = le32_to_cpu(rf->rf_lsflags);
-}
-
 void dlm_rcom_out(struct dlm_rcom *rc)
 {
-        int type = rc->rc_type;
-
         header_out(&rc->rc_header);
 
         rc->rc_type             = cpu_to_le32(rc->rc_type);
@@ -184,18 +140,10 @@ void dlm_rcom_out(struct dlm_rcom *rc)
         rc->rc_id               = cpu_to_le64(rc->rc_id);
         rc->rc_seq              = cpu_to_le64(rc->rc_seq);
         rc->rc_seq_reply        = cpu_to_le64(rc->rc_seq_reply);
-
-        if ((type == DLM_RCOM_LOCK) || (type == DLM_RCOM_LOCK_REPLY))
-                rcom_lock_out((struct rcom_lock *) rc->rc_buf);
-
-        else if (type == DLM_RCOM_STATUS_REPLY)
-                rcom_config_out((struct rcom_config *) rc->rc_buf);
 }
 
 void dlm_rcom_in(struct dlm_rcom *rc)
 {
-        int type;
-
         header_in(&rc->rc_header);
 
         rc->rc_type             = le32_to_cpu(rc->rc_type);
@@ -203,13 +151,4 @@ void dlm_rcom_in(struct dlm_rcom *rc)
         rc->rc_id               = le64_to_cpu(rc->rc_id);
         rc->rc_seq              = le64_to_cpu(rc->rc_seq);
         rc->rc_seq_reply        = le64_to_cpu(rc->rc_seq_reply);
-
-        type = rc->rc_type;
-
-        if ((type == DLM_RCOM_LOCK) || (type == DLM_RCOM_LOCK_REPLY))
-                rcom_lock_in((struct rcom_lock *) rc->rc_buf);
-
-        else if (type == DLM_RCOM_STATUS_REPLY)
-                rcom_config_in((struct rcom_config *) rc->rc_buf);
 }
-
diff --git a/fs/dquot.c b/fs/dquot.c
index cee7c6f428f0..9c7feb62eed1 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -696,9 +696,8 @@ static int dqinit_needed(struct inode *inode, int type)
 /* This routine is guarded by dqonoff_mutex mutex */
 static void add_dquot_ref(struct super_block *sb, int type)
 {
-        struct inode *inode;
+        struct inode *inode, *old_inode = NULL;
 
-restart:
         spin_lock(&inode_lock);
         list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
                 if (!atomic_read(&inode->i_writecount))
@@ -711,12 +710,18 @@ restart:
                 __iget(inode);
                 spin_unlock(&inode_lock);
 
+                iput(old_inode);
                 sb->dq_op->initialize(inode, type);
-                iput(inode);
-                /* As we may have blocked we had better restart... */
-                goto restart;
+                /* We hold a reference to 'inode' so it couldn't have been
+                 * removed from s_inodes list while we dropped the inode_lock.
+                 * We cannot iput the inode now as we can be holding the last
+                 * reference and we cannot iput it under inode_lock. So we
+                 * keep the reference and iput it later. */
+                old_inode = inode;
+                spin_lock(&inode_lock);
         }
         spin_unlock(&inode_lock);
+        iput(old_inode);
 }
 
 /* Return 0 if dqput() won't block (note that 1 doesn't necessarily mean blocking) */
@@ -1628,16 +1633,17 @@ int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path)
         error = path_lookup(path, LOOKUP_FOLLOW, &nd);
         if (error < 0)
                 return error;
-        error = security_quota_on(nd.dentry);
+        error = security_quota_on(nd.path.dentry);
         if (error)
                 goto out_path;
         /* Quota file not on the same filesystem? */
-        if (nd.mnt->mnt_sb != sb)
+        if (nd.path.mnt->mnt_sb != sb)
                 error = -EXDEV;
         else
-                error = vfs_quota_on_inode(nd.dentry->d_inode, type, format_id);
+                error = vfs_quota_on_inode(nd.path.dentry->d_inode, type,
+                                           format_id);
 out_path:
-        path_release(&nd);
+        path_put(&nd.path);
         return error;
 }
 
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index f8ef0af919e7..a066e109ad9c 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -355,8 +355,11 @@ static int encrypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
         }
         /* Consider doing this once, when the file is opened */
         mutex_lock(&crypt_stat->cs_tfm_mutex);
-        rc = crypto_blkcipher_setkey(crypt_stat->tfm, crypt_stat->key,
-                                     crypt_stat->key_size);
+        if (!(crypt_stat->flags & ECRYPTFS_KEY_SET)) {
+                rc = crypto_blkcipher_setkey(crypt_stat->tfm, crypt_stat->key,
+                                             crypt_stat->key_size);
+                crypt_stat->flags |= ECRYPTFS_KEY_SET;
+        }
         if (rc) {
                 ecryptfs_printk(KERN_ERR, "Error setting key; rc = [%d]\n",
                                 rc);
@@ -376,11 +379,10 @@ out:
  *
  * Convert an eCryptfs page index into a lower byte offset
  */
-void ecryptfs_lower_offset_for_extent(loff_t *offset, loff_t extent_num,
-                                      struct ecryptfs_crypt_stat *crypt_stat)
+static void ecryptfs_lower_offset_for_extent(loff_t *offset, loff_t extent_num,
+                                             struct ecryptfs_crypt_stat *crypt_stat)
 {
-        (*offset) = ((crypt_stat->extent_size
-                      * crypt_stat->num_header_extents_at_front)
+        (*offset) = (crypt_stat->num_header_bytes_at_front
                      + (crypt_stat->extent_size * extent_num));
 }
 
@@ -842,15 +844,13 @@ void ecryptfs_set_default_sizes(struct ecryptfs_crypt_stat *crypt_stat)
         set_extent_mask_and_shift(crypt_stat);
         crypt_stat->iv_bytes = ECRYPTFS_DEFAULT_IV_BYTES;
         if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
-                crypt_stat->num_header_extents_at_front = 0;
+                crypt_stat->num_header_bytes_at_front = 0;
         else {
                 if (PAGE_CACHE_SIZE <= ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)
-                        crypt_stat->num_header_extents_at_front =
-                                (ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE
-                                 / crypt_stat->extent_size);
+                        crypt_stat->num_header_bytes_at_front =
+                                ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
                 else
-                        crypt_stat->num_header_extents_at_front =
-                                (PAGE_CACHE_SIZE / crypt_stat->extent_size);
+                        crypt_stat->num_header_bytes_at_front = PAGE_CACHE_SIZE;
         }
 }
 
@@ -1128,7 +1128,7 @@ write_ecryptfs_flags(char *page_virt, struct ecryptfs_crypt_stat *crypt_stat,
 
 struct ecryptfs_cipher_code_str_map_elem {
         char cipher_str[16];
-        u16 cipher_code;
+        u8 cipher_code;
 };
 
 /* Add support for additional ciphers by adding elements here. The
@@ -1152,10 +1152,10 @@ ecryptfs_cipher_code_str_map[] = {
  *
  * Returns zero on no match, or the cipher code on match
  */
-u16 ecryptfs_code_for_cipher_string(struct ecryptfs_crypt_stat *crypt_stat)
+u8 ecryptfs_code_for_cipher_string(struct ecryptfs_crypt_stat *crypt_stat)
 {
         int i;
-        u16 code = 0;
+        u8 code = 0;
         struct ecryptfs_cipher_code_str_map_elem *map =
                 ecryptfs_cipher_code_str_map;
 
@@ -1187,7 +1187,7 @@ u16 ecryptfs_code_for_cipher_string(struct ecryptfs_crypt_stat *crypt_stat)
  *
  * Returns zero on success
  */
-int ecryptfs_cipher_code_to_string(char *str, u16 cipher_code)
+int ecryptfs_cipher_code_to_string(char *str, u8 cipher_code)
 {
         int rc = 0;
         int i;
@@ -1236,7 +1236,8 @@ ecryptfs_write_header_metadata(char *virt,
 
         header_extent_size = (u32)crypt_stat->extent_size;
         num_header_extents_at_front =
-                (u16)crypt_stat->num_header_extents_at_front;
+                (u16)(crypt_stat->num_header_bytes_at_front
+                      / crypt_stat->extent_size);
         header_extent_size = cpu_to_be32(header_extent_size);
         memcpy(virt, &header_extent_size, 4);
         virt += 4;
@@ -1311,40 +1312,16 @@ static int ecryptfs_write_headers_virt(char *page_virt, size_t *size,
 static int
 ecryptfs_write_metadata_to_contents(struct ecryptfs_crypt_stat *crypt_stat,
                                     struct dentry *ecryptfs_dentry,
-                                    char *page_virt)
+                                    char *virt)
 {
-        int current_header_page;
-        int header_pages;
         int rc;
 
-        rc = ecryptfs_write_lower(ecryptfs_dentry->d_inode, page_virt,
-                                  0, PAGE_CACHE_SIZE);
-        if (rc) {
+        rc = ecryptfs_write_lower(ecryptfs_dentry->d_inode, virt,
+                                  0, crypt_stat->num_header_bytes_at_front);
+        if (rc)
                 printk(KERN_ERR "%s: Error attempting to write header "
                        "information to lower file; rc = [%d]\n", __FUNCTION__,
                        rc);
-                goto out;
-        }
-        header_pages = ((crypt_stat->extent_size
-                         * crypt_stat->num_header_extents_at_front)
-                        / PAGE_CACHE_SIZE);
-        memset(page_virt, 0, PAGE_CACHE_SIZE);
-        current_header_page = 1;
-        while (current_header_page < header_pages) {
-                loff_t offset;
-
-                offset = (((loff_t)current_header_page) << PAGE_CACHE_SHIFT);
-                if ((rc = ecryptfs_write_lower(ecryptfs_dentry->d_inode,
-                                               page_virt, offset,
-                                               PAGE_CACHE_SIZE))) {
-                        printk(KERN_ERR "%s: Error attempting to write header "
-                               "information to lower file; rc = [%d]\n",
-                               __FUNCTION__, rc);
-                        goto out;
-                }
-                current_header_page++;
-        }
-out:
         return rc;
 }
 
@@ -1370,15 +1347,13 @@ ecryptfs_write_metadata_to_xattr(struct dentry *ecryptfs_dentry,
  * retrieved via a prompt.  Exactly what happens at this point should
  * be policy-dependent.
  *
- * TODO: Support header information spanning multiple pages
- *
  * Returns zero on success; non-zero on error
  */
 int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry)
 {
         struct ecryptfs_crypt_stat *crypt_stat =
                 &ecryptfs_inode_to_private(ecryptfs_dentry->d_inode)->crypt_stat;
-        char *page_virt;
+        char *virt;
         size_t size = 0;
         int rc = 0;
 
@@ -1389,40 +1364,39 @@ int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry)
                         goto out;
                 }
         } else {
+                printk(KERN_WARNING "%s: Encrypted flag not set\n",
+                       __FUNCTION__);
                 rc = -EINVAL;
-                ecryptfs_printk(KERN_WARNING,
-                                "Called with crypt_stat->encrypted == 0\n");
                 goto out;
         }
         /* Released in this function */
-        page_virt = kmem_cache_zalloc(ecryptfs_header_cache_0, GFP_USER);
-        if (!page_virt) {
-                ecryptfs_printk(KERN_ERR, "Out of memory\n");
+        virt = kzalloc(crypt_stat->num_header_bytes_at_front, GFP_KERNEL);
+        if (!virt) {
+                printk(KERN_ERR "%s: Out of memory\n", __FUNCTION__);
                 rc = -ENOMEM;
                 goto out;
         }
-        rc = ecryptfs_write_headers_virt(page_virt, &size, crypt_stat,
-                                         ecryptfs_dentry);
+        rc = ecryptfs_write_headers_virt(virt, &size, crypt_stat,
+                                         ecryptfs_dentry);
         if (unlikely(rc)) {
-                ecryptfs_printk(KERN_ERR, "Error whilst writing headers\n");
-                memset(page_virt, 0, PAGE_CACHE_SIZE);
+                printk(KERN_ERR "%s: Error whilst writing headers; rc = [%d]\n",
+                       __FUNCTION__, rc);
                 goto out_free;
         }
         if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
                 rc = ecryptfs_write_metadata_to_xattr(ecryptfs_dentry,
-                                                      crypt_stat, page_virt,
-                                                      size);
+                                                      crypt_stat, virt, size);
         else
                 rc = ecryptfs_write_metadata_to_contents(crypt_stat,
-                                                         ecryptfs_dentry,
-                                                         page_virt);
+                                                         ecryptfs_dentry, virt);
         if (rc) {
-                printk(KERN_ERR "Error writing metadata out to lower file; "
-                       "rc = [%d]\n", rc);
+                printk(KERN_ERR "%s: Error writing metadata out to lower file; "
+                       "rc = [%d]\n", __FUNCTION__, rc);
                 goto out_free;
         }
 out_free:
-        kmem_cache_free(ecryptfs_header_cache_0, page_virt);
+        memset(virt, 0, crypt_stat->num_header_bytes_at_front);
+        kfree(virt);
 out:
         return rc;
 }
@@ -1442,16 +1416,16 @@ static int parse_header_metadata(struct ecryptfs_crypt_stat *crypt_stat,
         virt += sizeof(u32);
         memcpy(&num_header_extents_at_front, virt, sizeof(u16));
         num_header_extents_at_front = be16_to_cpu(num_header_extents_at_front);
-        crypt_stat->num_header_extents_at_front =
-                (int)num_header_extents_at_front;
+        crypt_stat->num_header_bytes_at_front =
+                (((size_t)num_header_extents_at_front
+                  * (size_t)header_extent_size));
         (*bytes_read) = (sizeof(u32) + sizeof(u16));
         if ((validate_header_size == ECRYPTFS_VALIDATE_HEADER_SIZE)
-            && ((crypt_stat->extent_size
-                 * crypt_stat->num_header_extents_at_front)
+            && (crypt_stat->num_header_bytes_at_front
                 < ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)) {
                 rc = -EINVAL;
-                printk(KERN_WARNING "Invalid number of header extents: [%zd]\n",
-                       crypt_stat->num_header_extents_at_front);
+                printk(KERN_WARNING "Invalid header size: [%zd]\n",
+                       crypt_stat->num_header_bytes_at_front);
         }
         return rc;
 }
@@ -1466,7 +1440,8 @@ static int parse_header_metadata(struct ecryptfs_crypt_stat *crypt_stat,
  */
 static void set_default_header_data(struct ecryptfs_crypt_stat *crypt_stat)
 {
-        crypt_stat->num_header_extents_at_front = 2;
+        crypt_stat->num_header_bytes_at_front =
+                ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
 }
 
 /**
@@ -1552,9 +1527,10 @@ int ecryptfs_read_xattr_region(char *page_virt, struct inode *ecryptfs_inode)
         size = ecryptfs_getxattr_lower(lower_dentry, ECRYPTFS_XATTR_NAME,
                                        page_virt, ECRYPTFS_DEFAULT_EXTENT_SIZE);
         if (size < 0) {
-                printk(KERN_ERR "Error attempting to read the [%s] "
-                       "xattr from the lower file; return value = [%zd]\n",
-                       ECRYPTFS_XATTR_NAME, size);
+                if (unlikely(ecryptfs_verbosity > 0))
+                        printk(KERN_INFO "Error attempting to read the [%s] "
+                               "xattr from the lower file; return value = "
+                               "[%zd]\n", ECRYPTFS_XATTR_NAME, size);
                 rc = -EINVAL;
                 goto out;
         }
@@ -1802,7 +1778,7 @@ out:
 }
 
 struct kmem_cache *ecryptfs_key_tfm_cache;
-struct list_head key_tfm_list;
+static struct list_head key_tfm_list;
 struct mutex key_tfm_list_mutex;
 
 int ecryptfs_init_crypto(void)
@@ -1812,6 +1788,11 @@ int ecryptfs_init_crypto(void)
         return 0;
 }
 
+/**
+ * ecryptfs_destroy_crypto - free all cached key_tfms on key_tfm_list
+ *
+ * Called only at module unload time
+ */
 int ecryptfs_destroy_crypto(void)
 {
         struct ecryptfs_key_tfm *key_tfm, *key_tfm_tmp;
@@ -1835,6 +1816,8 @@ ecryptfs_add_new_key_tfm(struct ecryptfs_key_tfm **key_tfm, char *cipher_name,
         struct ecryptfs_key_tfm *tmp_tfm;
         int rc = 0;
 
+        BUG_ON(!mutex_is_locked(&key_tfm_list_mutex));
+
         tmp_tfm = kmem_cache_alloc(ecryptfs_key_tfm_cache, GFP_KERNEL);
         if (key_tfm != NULL)
                 (*key_tfm) = tmp_tfm;
@@ -1861,13 +1844,50 @@ ecryptfs_add_new_key_tfm(struct ecryptfs_key_tfm **key_tfm, char *cipher_name,
                         (*key_tfm) = NULL;
                 goto out;
         }
-        mutex_lock(&key_tfm_list_mutex);
         list_add(&tmp_tfm->key_tfm_list, &key_tfm_list);
-        mutex_unlock(&key_tfm_list_mutex);
 out:
         return rc;
 }
 
+/**
+ * ecryptfs_tfm_exists - Search for existing tfm for cipher_name.
+ * @cipher_name: the name of the cipher to search for
+ * @key_tfm: set to corresponding tfm if found
+ *
+ * Searches for cached key_tfm matching @cipher_name
+ * Must be called with &key_tfm_list_mutex held
+ * Returns 1 if found, with @key_tfm set
+ * Returns 0 if not found, with @key_tfm set to NULL
+ */
+int ecryptfs_tfm_exists(char *cipher_name, struct ecryptfs_key_tfm **key_tfm)
+{
+        struct ecryptfs_key_tfm *tmp_key_tfm;
+
+        BUG_ON(!mutex_is_locked(&key_tfm_list_mutex));
+
+        list_for_each_entry(tmp_key_tfm, &key_tfm_list, key_tfm_list) {
+                if (strcmp(tmp_key_tfm->cipher_name, cipher_name) == 0) {
+                        if (key_tfm)
+                                (*key_tfm) = tmp_key_tfm;
+                        return 1;
+                }
+        }
+        if (key_tfm)
+                (*key_tfm) = NULL;
+        return 0;
+}
+
+/**
+ * ecryptfs_get_tfm_and_mutex_for_cipher_name
+ *
+ * @tfm: set to cached tfm found, or new tfm created
+ * @tfm_mutex: set to mutex for cached tfm found, or new tfm created
+ * @cipher_name: the name of the cipher to search for and/or add
+ *
+ * Sets pointers to @tfm & @tfm_mutex matching @cipher_name.
+ * Searches for cached item first, and creates new if not found.
+ * Returns 0 on success, non-zero if adding new cipher failed
+ */
 int ecryptfs_get_tfm_and_mutex_for_cipher_name(struct crypto_blkcipher **tfm,
                                                struct mutex **tfm_mutex,
                                                char *cipher_name)
@@ -1877,22 +1897,17 @@ int ecryptfs_get_tfm_and_mutex_for_cipher_name(struct crypto_blkcipher **tfm,
 
         (*tfm) = NULL;
         (*tfm_mutex) = NULL;
+
         mutex_lock(&key_tfm_list_mutex);
-        list_for_each_entry(key_tfm, &key_tfm_list, key_tfm_list) {
-                if (strcmp(key_tfm->cipher_name, cipher_name) == 0) {
-                        (*tfm) = key_tfm->key_tfm;
-                        (*tfm_mutex) = &key_tfm->key_tfm_mutex;
-                        mutex_unlock(&key_tfm_list_mutex);
+        if (!ecryptfs_tfm_exists(cipher_name, &key_tfm)) {
+                rc = ecryptfs_add_new_key_tfm(&key_tfm, cipher_name, 0);
+                if (rc) {
+                        printk(KERN_ERR "Error adding new key_tfm to list; "
+                                        "rc = [%d]\n", rc);
                         goto out;
                 }
         }
         mutex_unlock(&key_tfm_list_mutex);
-        rc = ecryptfs_add_new_key_tfm(&key_tfm, cipher_name, 0);
-        if (rc) {
-                printk(KERN_ERR "Error adding new key_tfm to list; rc = [%d]\n",
-                       rc);
-                goto out;
-        }
         (*tfm) = key_tfm->key_tfm;
         (*tfm_mutex) = &key_tfm->key_tfm_mutex;
 out:
diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index cb20b964419f..841a032050a7 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -51,13 +51,13 @@ static int ecryptfs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
 
         if (!lower_dentry->d_op || !lower_dentry->d_op->d_revalidate)
                 goto out;
-        dentry_save = nd->dentry;
-        vfsmount_save = nd->mnt;
-        nd->dentry = lower_dentry;
-        nd->mnt = lower_mnt;
+        dentry_save = nd->path.dentry;
+        vfsmount_save = nd->path.mnt;
+        nd->path.dentry = lower_dentry;
+        nd->path.mnt = lower_mnt;
         rc = lower_dentry->d_op->d_revalidate(lower_dentry, nd);
-        nd->dentry = dentry_save;
-        nd->mnt = vfsmount_save;
+        nd->path.dentry = dentry_save;
+        nd->path.mnt = vfsmount_save;
         if (dentry->d_inode) {
                 struct inode *lower_inode =
                         ecryptfs_inode_to_lower(dentry->d_inode);
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index ce7a5d4aec36..5007f788da01 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -234,10 +234,11 @@ struct ecryptfs_crypt_stat {
 #define ECRYPTFS_KEY_VALID          0x00000080
 #define ECRYPTFS_METADATA_IN_XATTR  0x00000100
 #define ECRYPTFS_VIEW_AS_ENCRYPTED  0x00000200
+#define ECRYPTFS_KEY_SET            0x00000400
         u32 flags;
         unsigned int file_version;
         size_t iv_bytes;
-        size_t num_header_extents_at_front;
+        size_t num_header_bytes_at_front;
         size_t extent_size; /* Data extent size; default is 4096 */
         size_t key_size;
         size_t extent_shift;
@@ -322,7 +323,6 @@ struct ecryptfs_key_tfm {
         unsigned char cipher_name[ECRYPTFS_MAX_CIPHER_NAME_SIZE + 1];
 };
 
-extern struct list_head key_tfm_list;
 extern struct mutex key_tfm_list_mutex;
 
 /**
@@ -521,11 +521,9 @@ extern struct kmem_cache *ecryptfs_file_info_cache;
 extern struct kmem_cache *ecryptfs_dentry_info_cache;
 extern struct kmem_cache *ecryptfs_inode_info_cache;
 extern struct kmem_cache *ecryptfs_sb_info_cache;
-extern struct kmem_cache *ecryptfs_header_cache_0;
 extern struct kmem_cache *ecryptfs_header_cache_1;
 extern struct kmem_cache *ecryptfs_header_cache_2;
 extern struct kmem_cache *ecryptfs_xattr_cache;
-extern struct kmem_cache *ecryptfs_lower_page_cache;
 extern struct kmem_cache *ecryptfs_key_record_cache;
 extern struct kmem_cache *ecryptfs_key_sig_cache;
 extern struct kmem_cache *ecryptfs_global_auth_tok_cache;
@@ -562,8 +560,8 @@ int ecryptfs_read_and_validate_header_region(char *data,
                                              struct inode *ecryptfs_inode);
 int ecryptfs_read_and_validate_xattr_region(char *page_virt,
                                             struct dentry *ecryptfs_dentry);
-u16 ecryptfs_code_for_cipher_string(struct ecryptfs_crypt_stat *crypt_stat);
-int ecryptfs_cipher_code_to_string(char *str, u16 cipher_code);
+u8 ecryptfs_code_for_cipher_string(struct ecryptfs_crypt_stat *crypt_stat);
+int ecryptfs_cipher_code_to_string(char *str, u8 cipher_code);
 void ecryptfs_set_default_sizes(struct ecryptfs_crypt_stat *crypt_stat);
 int ecryptfs_generate_key_packet_set(char *dest_base,
                                      struct ecryptfs_crypt_stat *crypt_stat,
@@ -576,8 +574,6 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length);
 int ecryptfs_inode_test(struct inode *inode, void *candidate_lower_inode);
 int ecryptfs_inode_set(struct inode *inode, void *lower_inode);
 void ecryptfs_init_inode(struct inode *inode, struct inode *lower_inode);
-ssize_t ecryptfs_getxattr(struct dentry *dentry, const char *name, void *value,
-                          size_t size);
 ssize_t
 ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,
                         void *value, size_t size);
@@ -623,6 +619,7 @@ ecryptfs_add_new_key_tfm(struct ecryptfs_key_tfm **key_tfm, char *cipher_name,
                          size_t key_size);
 int ecryptfs_init_crypto(void);
 int ecryptfs_destroy_crypto(void);
+int ecryptfs_tfm_exists(char *cipher_name, struct ecryptfs_key_tfm **key_tfm);
 int ecryptfs_get_tfm_and_mutex_for_cipher_name(struct crypto_blkcipher **tfm,
                                                struct mutex **tfm_mutex,
                                                char *cipher_name);
@@ -631,8 +628,6 @@ int ecryptfs_keyring_auth_tok_for_sig(struct key **auth_tok_key,
                                       char *sig);
 int ecryptfs_write_zeros(struct file *file, pgoff_t index, int start,
                          int num_zeros);
-void ecryptfs_lower_offset_for_extent(loff_t *offset, loff_t extent_num,
-                                      struct ecryptfs_crypt_stat *crypt_stat);
 int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data,
                          loff_t offset, size_t size);
 int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
@@ -646,8 +641,6 @@ int ecryptfs_read_lower_page_segment(struct page *page_for_ecryptfs,
                                      pgoff_t page_index,
                                      size_t offset_in_page, size_t size,
                                      struct inode *ecryptfs_inode);
-int ecryptfs_read(char *data, loff_t offset, size_t size,
-                  struct file *ecryptfs_file);
 struct page *ecryptfs_get_locked_page(struct file *file, loff_t index);
 
 #endif /* #ifndef ECRYPTFS_KERNEL_H */
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index c98c4690a771..2b8f5ed4adea 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -209,9 +209,10 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
                         if (!(mount_crypt_stat->flags
                               & ECRYPTFS_PLAINTEXT_PASSTHROUGH_ENABLED)) {
                                 rc = -EIO;
-                                printk(KERN_WARNING "Attempt to read file that "
+                                printk(KERN_WARNING "Either the lower file "
                                        "is not in a valid eCryptfs format, "
-                                       "and plaintext passthrough mode is not "
+                                       "or the key could not be retrieved. "
+                                       "Plaintext passthrough mode is not "
                                        "enabled; returning -EIO\n");
                                 mutex_unlock(&crypt_stat->cs_mutex);
                                 goto out_free;
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 5a719180983c..e23861152101 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -77,13 +77,13 @@ ecryptfs_create_underlying_file(struct inode *lower_dir_inode,
         struct vfsmount *vfsmount_save;
         int rc;
 
-        dentry_save = nd->dentry;
-        vfsmount_save = nd->mnt;
-        nd->dentry = lower_dentry;
-        nd->mnt = lower_mnt;
+        dentry_save = nd->path.dentry;
+        vfsmount_save = nd->path.mnt;
+        nd->path.dentry = lower_dentry;
+        nd->path.mnt = lower_mnt;
         rc = vfs_create(lower_dir_inode, lower_dentry, mode, nd);
-        nd->dentry = dentry_save;
-        nd->mnt = vfsmount_save;
+        nd->path.dentry = dentry_save;
+        nd->path.mnt = vfsmount_save;
         return rc;
 }
 
@@ -365,8 +365,7 @@ static struct dentry *ecryptfs_lookup(struct inode *dir, struct dentry *dentry,
                 dentry->d_sb)->mount_crypt_stat;
         if (mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED) {
                 if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
-                        file_size = ((crypt_stat->extent_size
-                                      * crypt_stat->num_header_extents_at_front)
+                        file_size = (crypt_stat->num_header_bytes_at_front
                                      + i_size_read(lower_dentry->d_inode));
                 else
                         file_size = i_size_read(lower_dentry->d_inode);
@@ -685,7 +684,7 @@ ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
  * @crypt_stat: Crypt_stat associated with file
  * @upper_size: Size of the upper file
  *
- * Calculate the requried size of the lower file based on the
+ * Calculate the required size of the lower file based on the
  * specified size of the upper file. This calculation is based on the
  * number of headers in the underlying file and the extent size.
  *
@@ -697,8 +696,7 @@ upper_size_to_lower_size(struct ecryptfs_crypt_stat *crypt_stat,
 {
         loff_t lower_size;
 
-        lower_size = (crypt_stat->extent_size
-                      * crypt_stat->num_header_extents_at_front);
+        lower_size = crypt_stat->num_header_bytes_at_front;
         if (upper_size != 0) {
                 loff_t num_extents;
 
@@ -821,14 +819,14 @@ ecryptfs_permission(struct inode *inode, int mask, struct nameidata *nd)
         int rc;
 
         if (nd) {
-                struct vfsmount *vfsmnt_save = nd->mnt;
-                struct dentry *dentry_save = nd->dentry;
+                struct vfsmount *vfsmnt_save = nd->path.mnt;
+                struct dentry *dentry_save = nd->path.dentry;
 
-                nd->mnt = ecryptfs_dentry_to_lower_mnt(nd->dentry);
-                nd->dentry = ecryptfs_dentry_to_lower(nd->dentry);
+                nd->path.mnt = ecryptfs_dentry_to_lower_mnt(nd->path.dentry);
+                nd->path.dentry = ecryptfs_dentry_to_lower(nd->path.dentry);
                 rc = permission(ecryptfs_inode_to_lower(inode), mask, nd);
-                nd->mnt = vfsmnt_save;
-                nd->dentry = dentry_save;
+                nd->path.mnt = vfsmnt_save;
+                nd->path.dentry = dentry_save;
         } else
                 rc = permission(ecryptfs_inode_to_lower(inode), mask, NULL);
         return rc;
@@ -875,11 +873,11 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
                         if (!(mount_crypt_stat->flags
                               & ECRYPTFS_PLAINTEXT_PASSTHROUGH_ENABLED)) {
                                 rc = -EIO;
-                                printk(KERN_WARNING "Attempt to read file that "
+                                printk(KERN_WARNING "Either the lower file "
                                        "is not in a valid eCryptfs format, "
-                                       "and plaintext passthrough mode is not "
+                                       "or the key could not be retrieved. "
+                                       "Plaintext passthrough mode is not "
                                        "enabled; returning -EIO\n");
-
                                 mutex_unlock(&crypt_stat->cs_mutex);
                                 goto out;
                         }
@@ -954,7 +952,7 @@ out:
         return rc;
 }
 
-ssize_t
+static ssize_t
 ecryptfs_getxattr(struct dentry *dentry, const char *name, void *value,
                   size_t size)
 {
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index f458c1f35565..682b1b2482c2 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -189,7 +189,7 @@ out:
 }
 
 static int
-parse_tag_65_packet(struct ecryptfs_session_key *session_key, u16 *cipher_code,
+parse_tag_65_packet(struct ecryptfs_session_key *session_key, u8 *cipher_code,
                     struct ecryptfs_message *msg)
 {
         size_t i = 0;
@@ -275,7 +275,7 @@ out:
 
 
 static int
-write_tag_66_packet(char *signature, size_t cipher_code,
+write_tag_66_packet(char *signature, u8 cipher_code,
                     struct ecryptfs_crypt_stat *crypt_stat, char **packet,
                     size_t *packet_len)
 {
@@ -428,7 +428,7 @@ static int
 decrypt_pki_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok,
                                   struct ecryptfs_crypt_stat *crypt_stat)
 {
-        u16 cipher_code = 0;
+        u8 cipher_code = 0;
         struct ecryptfs_msg_ctx *msg_ctx;
         struct ecryptfs_message *msg = NULL;
         char *auth_tok_sig;
@@ -1537,7 +1537,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
         struct scatterlist dst_sg;
         struct scatterlist src_sg;
         struct mutex *tfm_mutex = NULL;
-        size_t cipher_code;
+        u8 cipher_code;
         size_t packet_size_length;
         size_t max_packet_size;
         struct ecryptfs_mount_crypt_stat *mount_crypt_stat =
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 0249aa4ae181..d25ac9500a92 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -117,7 +117,7 @@ void __ecryptfs_printk(const char *fmt, ...)
  *
  * Returns zero on success; non-zero otherwise
  */
-int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
+static int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
 {
         struct ecryptfs_inode_info *inode_info =
                 ecryptfs_inode_to_private(ecryptfs_dentry->d_inode);
@@ -226,17 +226,15 @@ out:
         return rc;
 }
 
-enum { ecryptfs_opt_sig, ecryptfs_opt_ecryptfs_sig, ecryptfs_opt_debug,
-       ecryptfs_opt_ecryptfs_debug, ecryptfs_opt_cipher,
-       ecryptfs_opt_ecryptfs_cipher, ecryptfs_opt_ecryptfs_key_bytes,
+enum { ecryptfs_opt_sig, ecryptfs_opt_ecryptfs_sig,
+       ecryptfs_opt_cipher, ecryptfs_opt_ecryptfs_cipher,
+       ecryptfs_opt_ecryptfs_key_bytes,
        ecryptfs_opt_passthrough, ecryptfs_opt_xattr_metadata,
        ecryptfs_opt_encrypted_view, ecryptfs_opt_err };
 
 static match_table_t tokens = {
         {ecryptfs_opt_sig, "sig=%s"},
         {ecryptfs_opt_ecryptfs_sig, "ecryptfs_sig=%s"},
-        {ecryptfs_opt_debug, "debug=%u"},
-        {ecryptfs_opt_ecryptfs_debug, "ecryptfs_debug=%u"},
         {ecryptfs_opt_cipher, "cipher=%s"},
         {ecryptfs_opt_ecryptfs_cipher, "ecryptfs_cipher=%s"},
         {ecryptfs_opt_ecryptfs_key_bytes, "ecryptfs_key_bytes=%u"},
@@ -313,7 +311,6 @@ static int ecryptfs_parse_options(struct super_block *sb, char *options)
         substring_t args[MAX_OPT_ARGS];
         int token;
         char *sig_src;
-        char *debug_src;
         char *cipher_name_dst;
         char *cipher_name_src;
         char *cipher_key_bytes_src;
@@ -341,16 +338,6 @@ static int ecryptfs_parse_options(struct super_block *sb, char *options)
                         }
                         sig_set = 1;
                         break;
-                case ecryptfs_opt_debug:
-                case ecryptfs_opt_ecryptfs_debug:
-                        debug_src = args[0].from;
-                        ecryptfs_verbosity =
-                                (int)simple_strtol(debug_src, &debug_src,
-                                                   0);
-                        ecryptfs_printk(KERN_DEBUG,
-                                        "Verbosity set to [%d]" "\n",
-                                        ecryptfs_verbosity);
-                        break;
                 case ecryptfs_opt_cipher:
                 case ecryptfs_opt_ecryptfs_cipher:
                         cipher_name_src = args[0].from;
@@ -423,9 +410,13 @@ static int ecryptfs_parse_options(struct super_block *sb, char *options)
         if (!cipher_key_bytes_set) {
                 mount_crypt_stat->global_default_cipher_key_size = 0;
         }
-        rc = ecryptfs_add_new_key_tfm(
-                NULL, mount_crypt_stat->global_default_cipher_name,
-                mount_crypt_stat->global_default_cipher_key_size);
+        mutex_lock(&key_tfm_list_mutex);
+        if (!ecryptfs_tfm_exists(mount_crypt_stat->global_default_cipher_name,
+                                 NULL))
+                rc = ecryptfs_add_new_key_tfm(
+                        NULL, mount_crypt_stat->global_default_cipher_name,
+                        mount_crypt_stat->global_default_cipher_key_size);
+        mutex_unlock(&key_tfm_list_mutex);
         if (rc) {
                 printk(KERN_ERR "Error attempting to initialize cipher with "
                        "name = [%s] and key size = [%td]; rc = [%d]\n",
@@ -522,8 +513,8 @@ static int ecryptfs_read_super(struct super_block *sb, const char *dev_name)
                 ecryptfs_printk(KERN_WARNING, "path_lookup() failed\n");
                 goto out;
         }
-        lower_root = nd.dentry;
-        lower_mnt = nd.mnt;
+        lower_root = nd.path.dentry;
+        lower_mnt = nd.path.mnt;
         ecryptfs_set_superblock_lower(sb, lower_root->d_sb);
         sb->s_maxbytes = lower_root->d_sb->s_maxbytes;
         sb->s_blocksize = lower_root->d_sb->s_blocksize;
@@ -535,7 +526,7 @@ static int ecryptfs_read_super(struct super_block *sb, const char *dev_name)
         rc = 0;
         goto out;
 out_free:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
         return rc;
 }
@@ -654,11 +645,6 @@ static struct ecryptfs_cache_info {
                 .size = sizeof(struct ecryptfs_sb_info),
         },
         {
-                .cache = &ecryptfs_header_cache_0,
-                .name = "ecryptfs_headers_0",
-                .size = PAGE_CACHE_SIZE,
-        },
-        {
                 .cache = &ecryptfs_header_cache_1,
                 .name = "ecryptfs_headers_1",
                 .size = PAGE_CACHE_SIZE,
@@ -821,6 +807,10 @@ static int __init ecryptfs_init(void)
                        "rc = [%d]\n", rc);
                 goto out_release_messaging;
         }
+        if (ecryptfs_verbosity > 0)
+                printk(KERN_CRIT "eCryptfs verbosity set to %d. Secret values "
+                        "will be written to the syslog!\n", ecryptfs_verbosity);
+
         goto out;
 out_release_messaging:
         ecryptfs_release_messaging(ecryptfs_transport);
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 32c5711d79a3..dc74b186145d 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -34,8 +34,6 @@
 #include <linux/scatterlist.h>
 #include "ecryptfs_kernel.h"
 
-struct kmem_cache *ecryptfs_lower_page_cache;
-
 /**
  * ecryptfs_get_locked_page
  *
@@ -102,13 +100,14 @@ static void set_header_info(char *page_virt,
                             struct ecryptfs_crypt_stat *crypt_stat)
 {
         size_t written;
-        int save_num_header_extents_at_front =
-                crypt_stat->num_header_extents_at_front;
+        size_t save_num_header_bytes_at_front =
+                crypt_stat->num_header_bytes_at_front;
 
-        crypt_stat->num_header_extents_at_front = 1;
+        crypt_stat->num_header_bytes_at_front =
+                ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
         ecryptfs_write_header_metadata(page_virt + 20, crypt_stat, &written);
-        crypt_stat->num_header_extents_at_front =
-                save_num_header_extents_at_front;
+        crypt_stat->num_header_bytes_at_front =
+                save_num_header_bytes_at_front;
 }
 
 /**
@@ -134,8 +133,11 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
                 loff_t view_extent_num = ((((loff_t)page->index)
                                            * num_extents_per_page)
                                           + extent_num_in_page);
+                size_t num_header_extents_at_front =
+                        (crypt_stat->num_header_bytes_at_front
+                         / crypt_stat->extent_size);
 
-                if (view_extent_num < crypt_stat->num_header_extents_at_front) {
+                if (view_extent_num < num_header_extents_at_front) {
                         /* This is a header extent */
                         char *page_virt;
 
@@ -157,9 +159,8 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
                 } else {
                         /* This is an encrypted data extent */
                         loff_t lower_offset =
-                                ((view_extent_num -
-                                  crypt_stat->num_header_extents_at_front)
-                                 * crypt_stat->extent_size);
+                                ((view_extent_num * crypt_stat->extent_size)
+                                 - crypt_stat->num_header_bytes_at_front);
 
                         rc = ecryptfs_read_lower_page_segment(
                                 page, (lower_offset >> PAGE_CACHE_SHIFT),
@@ -257,8 +258,7 @@ static int fill_zeros_to_end_of_page(struct page *page, unsigned int to)
         end_byte_in_page = i_size_read(inode) % PAGE_CACHE_SIZE;
         if (to > end_byte_in_page)
                 end_byte_in_page = to;
-        zero_user_page(page, end_byte_in_page,
-                PAGE_CACHE_SIZE - end_byte_in_page, KM_USER0);
+        zero_user_segment(page, end_byte_in_page, PAGE_CACHE_SIZE);
 out:
         return 0;
 }
@@ -307,7 +307,7 @@ static int ecryptfs_prepare_write(struct file *file, struct page *page,
          */
         if ((i_size_read(page->mapping->host) == prev_page_end_size) &&
             (from != 0)) {
-                zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
+                zero_user(page, 0, PAGE_CACHE_SIZE);
         }
 out:
         return rc;
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 948f57624c05..0c4928623bbc 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -293,6 +293,7 @@ int ecryptfs_read_lower_page_segment(struct page *page_for_ecryptfs,
         return rc;
 }
 
+#if 0
 /**
  * ecryptfs_read
  * @data: The virtual address into which to write the data read (and
@@ -371,3 +372,4 @@ int ecryptfs_read(char *data, loff_t offset, size_t size,
 out:
         return rc;
 }
+#endif  /*  0  */
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 4859c4eecd65..c27ac2b358a1 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -156,32 +156,38 @@ static void ecryptfs_clear_inode(struct inode *inode)
 /**
  * ecryptfs_show_options
  *
- * Prints the directory we are currently mounted over.
- * Returns zero on success; non-zero otherwise
+ * Prints the mount options for a given superblock.
+ * Returns zero; does not fail.
  */
 static int ecryptfs_show_options(struct seq_file *m, struct vfsmount *mnt)
 {
         struct super_block *sb = mnt->mnt_sb;
-        struct dentry *lower_root_dentry = ecryptfs_dentry_to_lower(sb->s_root);
-        struct vfsmount *lower_mnt = ecryptfs_dentry_to_lower_mnt(sb->s_root);
-        char *tmp_page;
-        char *path;
-        int rc = 0;
-
-        tmp_page = (char *)__get_free_page(GFP_KERNEL);
-        if (!tmp_page) {
-                rc = -ENOMEM;
-                goto out;
-        }
-        path = d_path(lower_root_dentry, lower_mnt, tmp_page, PAGE_SIZE);
-        if (IS_ERR(path)) {
-                rc = PTR_ERR(path);
-                goto out;
+        struct ecryptfs_mount_crypt_stat *mount_crypt_stat =
+                &ecryptfs_superblock_to_private(sb)->mount_crypt_stat;
+        struct ecryptfs_global_auth_tok *walker;
+
+        mutex_lock(&mount_crypt_stat->global_auth_tok_list_mutex);
+        list_for_each_entry(walker,
+                            &mount_crypt_stat->global_auth_tok_list,
+                            mount_crypt_stat_list) {
+                seq_printf(m, ",ecryptfs_sig=%s", walker->sig);
         }
-        seq_printf(m, ",dir=%s", path);
-        free_page((unsigned long)tmp_page);
-out:
-        return rc;
+        mutex_unlock(&mount_crypt_stat->global_auth_tok_list_mutex);
+
+        seq_printf(m, ",ecryptfs_cipher=%s",
+                mount_crypt_stat->global_default_cipher_name);
+
+        if (mount_crypt_stat->global_default_cipher_key_size)
+                seq_printf(m, ",ecryptfs_key_bytes=%zd",
+                           mount_crypt_stat->global_default_cipher_key_size);
+        if (mount_crypt_stat->flags & ECRYPTFS_PLAINTEXT_PASSTHROUGH_ENABLED)
+                seq_printf(m, ",ecryptfs_passthrough");
+        if (mount_crypt_stat->flags & ECRYPTFS_XATTR_METADATA_ENABLED)
+                seq_printf(m, ",ecryptfs_xattr_metadata");
+        if (mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
+                seq_printf(m, ",ecryptfs_encrypted_view");
+
+        return 0;
 }
 
 const struct super_operations ecryptfs_sops = {
diff --git a/fs/efs/inode.c b/fs/efs/inode.c
index 174696f9bf14..627c3026946d 100644
--- a/fs/efs/inode.c
+++ b/fs/efs/inode.c
@@ -45,17 +45,26 @@ static inline void extent_copy(efs_extent *src, efs_extent *dst) {
         return;
 }
 
-void efs_read_inode(struct inode *inode)
+struct inode *efs_iget(struct super_block *super, unsigned long ino)
 {
         int i, inode_index;
         dev_t device;
         u32 rdev;
         struct buffer_head *bh;
-        struct efs_sb_info    *sb = SUPER_INFO(inode->i_sb);
-        struct efs_inode_info *in = INODE_INFO(inode);
+        struct efs_sb_info    *sb = SUPER_INFO(super);
+        struct efs_inode_info *in;
         efs_block_t block, offset;
         struct efs_dinode *efs_inode;
-  
+        struct inode *inode;
+
+        inode = iget_locked(super, ino);
+        if (IS_ERR(inode))
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        in = INODE_INFO(inode);
+
         /*
         ** EFS layout:
         **
@@ -159,13 +168,13 @@ void efs_read_inode(struct inode *inode)
                         break;
         }
 
-        return;
+        unlock_new_inode(inode);
+        return inode;
         
 read_inode_error:
         printk(KERN_WARNING "EFS: failed to read inode %lu\n", inode->i_ino);
-        make_bad_inode(inode);
-
-        return;
+        iget_failed(inode);
+        return ERR_PTR(-EIO);
 }
 
 static inline efs_block_t
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index f7f407075be1..e26704742d41 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -66,9 +66,10 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei
         lock_kernel();
         inodenum = efs_find_entry(dir, dentry->d_name.name, dentry->d_name.len);
         if (inodenum) {
-                if (!(inode = iget(dir->i_sb, inodenum))) {
+                inode = efs_iget(dir->i_sb, inodenum);
+                if (IS_ERR(inode)) {
                         unlock_kernel();
-                        return ERR_PTR(-EACCES);
+                        return ERR_CAST(inode);
                 }
         }
         unlock_kernel();
@@ -84,12 +85,11 @@ static struct inode *efs_nfs_get_inode(struct super_block *sb, u64 ino,
 
         if (ino == 0)
                 return ERR_PTR(-ESTALE);
-        inode = iget(sb, ino);
-        if (inode == NULL)
-                return ERR_PTR(-ENOMEM);
+        inode = efs_iget(sb, ino);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
 
-        if (is_bad_inode(inode) ||
-            (generation && inode->i_generation != generation)) {
+        if (generation && inode->i_generation != generation) {
                 iput(inode);
                 return ERR_PTR(-ESTALE);
         }
@@ -116,7 +116,7 @@ struct dentry *efs_get_parent(struct dentry *child)
         struct dentry *parent;
         struct inode *inode;
         efs_ino_t ino;
-        int error;
+        long error;
 
         lock_kernel();
 
@@ -125,10 +125,11 @@ struct dentry *efs_get_parent(struct dentry *child)
         if (!ino)
                 goto fail;
 
-        error = -EACCES;
-        inode = iget(child->d_inode->i_sb, ino);
-        if (!inode)
+        inode = efs_iget(child->d_inode->i_sb, ino);
+        if (IS_ERR(inode)) {
+                error = PTR_ERR(inode);
                 goto fail;
+        }
 
         error = -ENOMEM;
         parent = d_alloc_anon(inode);
diff --git a/fs/efs/super.c b/fs/efs/super.c
index c79bc627f107..14082405cdd1 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -107,7 +107,6 @@ static int efs_remount(struct super_block *sb, int *flags, char *data)
 static const struct super_operations efs_superblock_operations = {
         .alloc_inode    = efs_alloc_inode,
         .destroy_inode  = efs_destroy_inode,
-        .read_inode     = efs_read_inode,
         .put_super      = efs_put_super,
         .statfs         = efs_statfs,
         .remount_fs     = efs_remount,
@@ -247,6 +246,7 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
         struct efs_sb_info *sb;
         struct buffer_head *bh;
         struct inode *root;
+        int ret = -EINVAL;
 
         sb = kzalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
         if (!sb)
@@ -303,12 +303,18 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
         }
         s->s_op   = &efs_superblock_operations;
         s->s_export_op = &efs_export_ops;
-        root = iget(s, EFS_ROOTINODE);
+        root = efs_iget(s, EFS_ROOTINODE);
+        if (IS_ERR(root)) {
+                printk(KERN_ERR "EFS: get root inode failed\n");
+                ret = PTR_ERR(root);
+                goto out_no_fs;
+        }
+
         s->s_root = d_alloc_root(root);
- 
         if (!(s->s_root)) {
-                printk(KERN_ERR "EFS: get root inode failed\n");
+                printk(KERN_ERR "EFS: get root dentry failed\n");
                 iput(root);
+                ret = -ENOMEM;
                 goto out_no_fs;
         }
 
@@ -318,7 +324,7 @@ out_no_fs_ul:
 out_no_fs:
         s->s_fs_info = NULL;
         kfree(sb);
-        return -EINVAL;
+        return ret;
 }
 
 static int efs_statfs(struct dentry *dentry, struct kstatfs *buf) {
diff --git a/fs/eventfd.c b/fs/eventfd.c
index 2ce19c000d2a..a9f130cd50ac 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -15,6 +15,7 @@
 #include <linux/spinlock.h>
 #include <linux/anon_inodes.h>
 #include <linux/eventfd.h>
+#include <linux/syscalls.h>
 
 struct eventfd_ctx {
         wait_queue_head_t wqh;
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 81c04abfb1aa..a415f42d32cf 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -353,7 +353,7 @@ static void ep_poll_safewake(struct poll_safewake *psw, wait_queue_head_t *wq)
         spin_unlock_irqrestore(&psw->lock, flags);
 
         /* Do really wake up now */
-        wake_up(wq);
+        wake_up_nested(wq, 1 + wake_nests);
 
         /* Remove the current task from the list */
         spin_lock_irqsave(&psw->lock, flags);
diff --git a/fs/exec.c b/fs/exec.c
index 282240afe99e..a44b142fb460 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -112,14 +112,14 @@ asmlinkage long sys_uselib(const char __user * library)
                 goto out;
 
         error = -EINVAL;
-        if (!S_ISREG(nd.dentry->d_inode->i_mode))
+        if (!S_ISREG(nd.path.dentry->d_inode->i_mode))
                 goto exit;
 
         error = vfs_permission(&nd, MAY_READ | MAY_EXEC);
         if (error)
                 goto exit;
 
-        file = nameidata_to_filp(&nd, O_RDONLY);
+        file = nameidata_to_filp(&nd, O_RDONLY|O_LARGEFILE);
         error = PTR_ERR(file);
         if (IS_ERR(file))
                 goto out;
@@ -148,7 +148,7 @@ out:
         return error;
 exit:
         release_open_intent(&nd);
-        path_release(&nd);
+        path_put(&nd.path);
         goto out;
 }
 
@@ -652,13 +652,14 @@ struct file *open_exec(const char *name)
         file = ERR_PTR(err);
 
         if (!err) {
-                struct inode *inode = nd.dentry->d_inode;
+                struct inode *inode = nd.path.dentry->d_inode;
                 file = ERR_PTR(-EACCES);
                 if (S_ISREG(inode->i_mode)) {
                         int err = vfs_permission(&nd, MAY_EXEC);
                         file = ERR_PTR(err);
                         if (!err) {
-                                file = nameidata_to_filp(&nd, O_RDONLY);
+                                file = nameidata_to_filp(&nd,
+                                                        O_RDONLY|O_LARGEFILE);
                                 if (!IS_ERR(file)) {
                                         err = deny_write_access(file);
                                         if (err) {
@@ -671,7 +672,7 @@ out:
                         }
                 }
                 release_open_intent(&nd);
-                path_release(&nd);
+                path_put(&nd.path);
         }
         goto out;
 }
@@ -760,7 +761,7 @@ static int de_thread(struct task_struct *tsk)
          */
         read_lock(&tasklist_lock);
         spin_lock_irq(lock);
-        if (sig->flags & SIGNAL_GROUP_EXIT) {
+        if (signal_group_exit(sig)) {
                 /*
                  * Another group action in progress, just
                  * return so that the signal is processed.
@@ -778,31 +779,13 @@ static int de_thread(struct task_struct *tsk)
         if (unlikely(tsk->group_leader == task_child_reaper(tsk)))
                 task_active_pid_ns(tsk)->child_reaper = tsk;
 
+        sig->group_exit_task = tsk;
         zap_other_threads(tsk);
         read_unlock(&tasklist_lock);
 
-        /*
-         * Account for the thread group leader hanging around:
-         */
-        count = 1;
-        if (!thread_group_leader(tsk)) {
-                count = 2;
-                /*
-                 * The SIGALRM timer survives the exec, but needs to point
-                 * at us as the new group leader now.  We have a race with
-                 * a timer firing now getting the old leader, so we need to
-                 * synchronize with any firing (by calling del_timer_sync)
-                 * before we can safely let the old group leader die.
-                 */
-                sig->tsk = tsk;
-                spin_unlock_irq(lock);
-                if (hrtimer_cancel(&sig->real_timer))
-                        hrtimer_restart(&sig->real_timer);
-                spin_lock_irq(lock);
-        }
-
+        /* Account for the thread group leader hanging around: */
+        count = thread_group_leader(tsk) ? 1 : 2;
         sig->notify_count = count;
-        sig->group_exit_task = tsk;
         while (atomic_read(&sig->count) > count) {
                 __set_current_state(TASK_UNINTERRUPTIBLE);
                 spin_unlock_irq(lock);
@@ -871,15 +854,10 @@ static int de_thread(struct task_struct *tsk)
                 leader->exit_state = EXIT_DEAD;
 
                 write_unlock_irq(&tasklist_lock);
-        }
+        }
 
         sig->group_exit_task = NULL;
         sig->notify_count = 0;
-        /*
-         * There may be one thread left which is just exiting,
-         * but it's safe to stop telling the group to kill themselves.
-         */
-        sig->flags = 0;
 
 no_thread_group:
         exit_itimers(sig);
@@ -947,12 +925,13 @@ static void flush_old_files(struct files_struct * files)
         spin_unlock(&files->file_lock);
 }
 
-void get_task_comm(char *buf, struct task_struct *tsk)
+char *get_task_comm(char *buf, struct task_struct *tsk)
 {
         /* buf must be at least sizeof(tsk->comm) in size */
         task_lock(tsk);
         strncpy(buf, tsk->comm, sizeof(tsk->comm));
         task_unlock(tsk);
+        return buf;
 }
 
 void set_task_comm(struct task_struct *tsk, char *buf)
@@ -1188,7 +1167,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
 {
         int try,retval;
         struct linux_binfmt *fmt;
-#ifdef __alpha__
+#if defined(__alpha__) && defined(CONFIG_ARCH_SUPPORTS_AOUT)
         /* handle /sbin/loader.. */
         {
             struct exec * eh = (struct exec *) bprm->buf;
@@ -1548,7 +1527,7 @@ static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
         int err = -EAGAIN;
 
         spin_lock_irq(&tsk->sighand->siglock);
-        if (!(tsk->signal->flags & SIGNAL_GROUP_EXIT)) {
+        if (!signal_group_exit(tsk->signal)) {
                 tsk->signal->group_exit_code = exit_code;
                 zap_process(tsk);
                 err = 0;
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 377ad172d74b..e7b2bafa1dd9 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -69,9 +69,53 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
         return desc + offset;
 }
 
+static int ext2_valid_block_bitmap(struct super_block *sb,
+                                        struct ext2_group_desc *desc,
+                                        unsigned int block_group,
+                                        struct buffer_head *bh)
+{
+        ext2_grpblk_t offset;
+        ext2_grpblk_t next_zero_bit;
+        ext2_fsblk_t bitmap_blk;
+        ext2_fsblk_t group_first_block;
+
+        group_first_block = ext2_group_first_block_no(sb, block_group);
+
+        /* check whether block bitmap block number is set */
+        bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
+        offset = bitmap_blk - group_first_block;
+        if (!ext2_test_bit(offset, bh->b_data))
+                /* bad block bitmap */
+                goto err_out;
+
+        /* check whether the inode bitmap block number is set */
+        bitmap_blk = le32_to_cpu(desc->bg_inode_bitmap);
+        offset = bitmap_blk - group_first_block;
+        if (!ext2_test_bit(offset, bh->b_data))
+                /* bad block bitmap */
+                goto err_out;
+
+        /* check whether the inode table block number is set */
+        bitmap_blk = le32_to_cpu(desc->bg_inode_table);
+        offset = bitmap_blk - group_first_block;
+        next_zero_bit = ext2_find_next_zero_bit(bh->b_data,
+                                offset + EXT2_SB(sb)->s_itb_per_group,
+                                offset);
+        if (next_zero_bit >= offset + EXT2_SB(sb)->s_itb_per_group)
+                /* good bitmap for inode tables */
+                return 1;
+
+err_out:
+        ext2_error(sb, __FUNCTION__,
+                        "Invalid block bitmap - "
+                        "block_group = %d, block = %lu",
+                        block_group, bitmap_blk);
+        return 0;
+}
+
 /*
- * Read the bitmap for a given block_group, reading into the specified 
- * slot in the superblock's bitmap cache.
+ * Read the bitmap for a given block_group,and validate the
+ * bits for block/inode/inode tables are set in the bitmaps
  *
  * Return buffer_head on success or NULL in case of failure.
  */
@@ -80,17 +124,36 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
 {
         struct ext2_group_desc * desc;
         struct buffer_head * bh = NULL;
-        
-        desc = ext2_get_group_desc (sb, block_group, NULL);
+        ext2_fsblk_t bitmap_blk;
+
+        desc = ext2_get_group_desc(sb, block_group, NULL);
         if (!desc)
-                goto error_out;
-        bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap));
-        if (!bh)
-                ext2_error (sb, "read_block_bitmap",
+                return NULL;
+        bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
+        bh = sb_getblk(sb, bitmap_blk);
+        if (unlikely(!bh)) {
+                ext2_error(sb, __FUNCTION__,
+                            "Cannot read block bitmap - "
+                            "block_group = %d, block_bitmap = %u",
+                            block_group, le32_to_cpu(desc->bg_block_bitmap));
+                return NULL;
+        }
+        if (likely(bh_uptodate_or_lock(bh)))
+                return bh;
+
+        if (bh_submit_read(bh) < 0) {
+                brelse(bh);
+                ext2_error(sb, __FUNCTION__,
                             "Cannot read block bitmap - "
                             "block_group = %d, block_bitmap = %u",
                             block_group, le32_to_cpu(desc->bg_block_bitmap));
-error_out:
+                return NULL;
+        }
+        if (!ext2_valid_block_bitmap(sb, desc, block_group, bh)) {
+                brelse(bh);
+                return NULL;
+        }
+
         return bh;
 }
 
@@ -474,11 +537,13 @@ do_more:
             in_range (block, le32_to_cpu(desc->bg_inode_table),
                       sbi->s_itb_per_group) ||
             in_range (block + count - 1, le32_to_cpu(desc->bg_inode_table),
-                      sbi->s_itb_per_group))
+                      sbi->s_itb_per_group)) {
                 ext2_error (sb, "ext2_free_blocks",
                             "Freeing blocks in system zones - "
                             "Block = %lu, count = %lu",
                             block, count);
+                goto error_return;
+        }
 
         for (i = 0, group_freed = 0; i < count; i++) {
                 if (!ext2_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
@@ -1250,8 +1315,8 @@ retry_alloc:
         smp_rmb();
 
         /*
-         * Now search the rest of the groups.  We assume that 
-         * i and gdp correctly point to the last group visited.
+         * Now search the rest of the groups.  We assume that
+         * group_no and gdp correctly point to the last group visited.
          */
         for (bgi = 0; bgi < ngroups; bgi++) {
                 group_no++;
@@ -1311,11 +1376,13 @@ allocated:
             in_range(ret_block, le32_to_cpu(gdp->bg_inode_table),
                       EXT2_SB(sb)->s_itb_per_group) ||
             in_range(ret_block + num - 1, le32_to_cpu(gdp->bg_inode_table),
-                      EXT2_SB(sb)->s_itb_per_group))
+                      EXT2_SB(sb)->s_itb_per_group)) {
                 ext2_error(sb, "ext2_new_blocks",
                             "Allocating block in system zone - "
                             "blocks from "E2FSBLK", length %lu",
                             ret_block, num);
+                goto out;
+        }
 
         performed_allocation = 1;
 
@@ -1466,9 +1533,6 @@ int ext2_bg_has_super(struct super_block *sb, int group)
  */
 unsigned long ext2_bg_num_gdb(struct super_block *sb, int group)
 {
-        if (EXT2_HAS_RO_COMPAT_FEATURE(sb,EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)&&
-            !ext2_group_sparse(group))
-                return 0;
-        return EXT2_SB(sb)->s_gdb_count;
+        return ext2_bg_has_super(sb, group) ? EXT2_SB(sb)->s_gdb_count : 0;
 }
 
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index d868e26c15eb..8dededd80fe2 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -703,7 +703,7 @@ const struct file_operations ext2_dir_operations = {
         .llseek         = generic_file_llseek,
         .read           = generic_read_dir,
         .readdir        = ext2_readdir,
-        .ioctl          = ext2_ioctl,
+        .unlocked_ioctl = ext2_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = ext2_compat_ioctl,
 #endif
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index c87ae29c19cb..47d88da2d33b 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -124,9 +124,8 @@ extern void ext2_check_inodes_bitmap (struct super_block *);
 extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
 
 /* inode.c */
-extern void ext2_read_inode (struct inode *);
+extern struct inode *ext2_iget (struct super_block *, unsigned long);
 extern int ext2_write_inode (struct inode *, int);
-extern void ext2_put_inode (struct inode *);
 extern void ext2_delete_inode (struct inode *);
 extern int ext2_sync_inode (struct inode *);
 extern int ext2_get_block(struct inode *, sector_t, struct buffer_head *, int);
@@ -139,8 +138,7 @@ int __ext2_write_begin(struct file *file, struct address_space *mapping,
                 struct page **pagep, void **fsdata);
 
 /* ioctl.c */
-extern int ext2_ioctl (struct inode *, struct file *, unsigned int,
-                       unsigned long);
+extern long ext2_ioctl(struct file *, unsigned int, unsigned long);
 extern long ext2_compat_ioctl(struct file *, unsigned int, unsigned long);
 
 /* namei.c */
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index c051798459a1..5f2fa9c36293 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -48,7 +48,7 @@ const struct file_operations ext2_file_operations = {
         .write          = do_sync_write,
         .aio_read       = generic_file_aio_read,
         .aio_write      = generic_file_aio_write,
-        .ioctl          = ext2_ioctl,
+        .unlocked_ioctl = ext2_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = ext2_compat_ioctl,
 #endif
@@ -65,7 +65,7 @@ const struct file_operations ext2_xip_file_operations = {
         .llseek         = generic_file_llseek,
         .read           = xip_file_read,
         .write          = xip_file_write,
-        .ioctl          = ext2_ioctl,
+        .unlocked_ioctl = ext2_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = ext2_compat_ioctl,
 #endif
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index b1ab32ab5a77..c62006805427 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -286,15 +286,12 @@ static unsigned long ext2_find_near(struct inode *inode, Indirect *ind)
  *      ext2_find_goal - find a prefered place for allocation.
  *      @inode: owner
  *      @block:  block we want
- *      @chain:  chain of indirect blocks
  *      @partial: pointer to the last triple within a chain
  *
  *      Returns preferred place for a block (the goal).
  */
 
-static inline int ext2_find_goal(struct inode *inode,
-                                 long block,
-                                 Indirect chain[4],
+static inline int ext2_find_goal(struct inode *inode, long block,
                                  Indirect *partial)
 {
         struct ext2_block_alloc_info *block_i;
@@ -569,7 +566,6 @@ static void ext2_splice_branch(struct inode *inode,
  *
  * `handle' can be NULL if create == 0.
  *
- * The BKL may not be held on entry here.  Be sure to take it early.
  * return > 0, # of blocks mapped or allocated.
  * return = 0, if plain lookup failed.
  * return < 0, error case.
@@ -639,7 +635,7 @@ reread:
         if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info))
                 ext2_init_block_alloc_info(inode);
 
-        goal = ext2_find_goal(inode, iblock, chain, partial);
+        goal = ext2_find_goal(inode, iblock, partial);
 
         /* the number of blocks need to allocate for [d,t]indirect blocks */
         indirect_blks = (chain + depth) - partial - 1;
@@ -1185,22 +1181,33 @@ void ext2_get_inode_flags(struct ext2_inode_info *ei)
                 ei->i_flags |= EXT2_DIRSYNC_FL;
 }
 
-void ext2_read_inode (struct inode * inode)
+struct inode *ext2_iget (struct super_block *sb, unsigned long ino)
 {
-        struct ext2_inode_info *ei = EXT2_I(inode);
-        ino_t ino = inode->i_ino;
+        struct ext2_inode_info *ei;
         struct buffer_head * bh;
-        struct ext2_inode * raw_inode = ext2_get_inode(inode->i_sb, ino, &bh);
+        struct ext2_inode *raw_inode;
+        struct inode *inode;
+        long ret = -EIO;
         int n;
 
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        ei = EXT2_I(inode);
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
         ei->i_acl = EXT2_ACL_NOT_CACHED;
         ei->i_default_acl = EXT2_ACL_NOT_CACHED;
 #endif
         ei->i_block_alloc_info = NULL;
 
-        if (IS_ERR(raw_inode))
+        raw_inode = ext2_get_inode(inode->i_sb, ino, &bh);
+        if (IS_ERR(raw_inode)) {
+                ret = PTR_ERR(raw_inode);
                 goto bad_inode;
+        }
 
         inode->i_mode = le16_to_cpu(raw_inode->i_mode);
         inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
@@ -1224,6 +1231,7 @@ void ext2_read_inode (struct inode * inode)
         if (inode->i_nlink == 0 && (inode->i_mode == 0 || ei->i_dtime)) {
                 /* this inode is deleted */
                 brelse (bh);
+                ret = -ESTALE;
                 goto bad_inode;
         }
         inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
@@ -1290,11 +1298,12 @@ void ext2_read_inode (struct inode * inode)
         }
         brelse (bh);
         ext2_set_inode_flags(inode);
-        return;
+        unlock_new_inode(inode);
+        return inode;
         
 bad_inode:
-        make_bad_inode(inode);
-        return;
+        iget_failed(inode);
+        return ERR_PTR(ret);
 }
 
 static int ext2_update_inode(struct inode * inode, int do_sync)
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index 320b2cb3d4d2..b8ea11fee5c6 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -17,9 +17,9 @@
 #include <asm/uaccess.h>
 
 
-int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
-                unsigned long arg)
+long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
+        struct inode *inode = filp->f_dentry->d_inode;
         struct ext2_inode_info *ei = EXT2_I(inode);
         unsigned int flags;
         unsigned short rsv_window_size;
@@ -141,9 +141,6 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
 #ifdef CONFIG_COMPAT
 long ext2_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
-        int ret;
-
         /* These are just misnamed, they actually get/put from/to user an int */
         switch (cmd) {
         case EXT2_IOC32_GETFLAGS:
@@ -161,9 +158,6 @@ long ext2_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
         default:
                 return -ENOIOCTLCMD;
         }
-        lock_kernel();
-        ret = ext2_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
-        unlock_kernel();
-        return ret;
+        return ext2_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
 }
 #endif
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index e69beed839ac..80c97fd8c571 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -63,9 +63,9 @@ static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry, str
         ino = ext2_inode_by_name(dir, dentry);
         inode = NULL;
         if (ino) {
-                inode = iget(dir->i_sb, ino);
-                if (!inode)
-                        return ERR_PTR(-EACCES);
+                inode = ext2_iget(dir->i_sb, ino);
+                if (IS_ERR(inode))
+                        return ERR_CAST(inode);
         }
         return d_splice_alias(inode, dentry);
 }
@@ -83,10 +83,10 @@ struct dentry *ext2_get_parent(struct dentry *child)
         ino = ext2_inode_by_name(child->d_inode, &dotdot);
         if (!ino)
                 return ERR_PTR(-ENOENT);
-        inode = iget(child->d_inode->i_sb, ino);
+        inode = ext2_iget(child->d_inode->i_sb, ino);
 
-        if (!inode)
-                return ERR_PTR(-EACCES);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
         parent = d_alloc_anon(inode);
         if (!parent) {
                 iput(inode);
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 6abaf75163f0..088b011bb97e 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -234,16 +234,16 @@ static int ext2_show_options(struct seq_file *seq, struct vfsmount *vfs)
             le16_to_cpu(es->s_def_resgid) != EXT2_DEF_RESGID) {
                 seq_printf(seq, ",resgid=%u", sbi->s_resgid);
         }
-        if (test_opt(sb, ERRORS_CONT)) {
+        if (test_opt(sb, ERRORS_RO)) {
                 int def_errors = le16_to_cpu(es->s_errors);
 
                 if (def_errors == EXT2_ERRORS_PANIC ||
-                    def_errors == EXT2_ERRORS_RO) {
-                        seq_puts(seq, ",errors=continue");
+                    def_errors == EXT2_ERRORS_CONTINUE) {
+                        seq_puts(seq, ",errors=remount-ro");
                 }
         }
-        if (test_opt(sb, ERRORS_RO))
-                seq_puts(seq, ",errors=remount-ro");
+        if (test_opt(sb, ERRORS_CONT))
+                seq_puts(seq, ",errors=continue");
         if (test_opt(sb, ERRORS_PANIC))
                 seq_puts(seq, ",errors=panic");
         if (test_opt(sb, NO_UID32))
@@ -285,6 +285,9 @@ static int ext2_show_options(struct seq_file *seq, struct vfsmount *vfs)
                 seq_puts(seq, ",xip");
 #endif
 
+        if (!test_opt(sb, RESERVATION))
+                seq_puts(seq, ",noreservation");
+
         return 0;
 }
 
@@ -296,7 +299,6 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type, const char *da
 static const struct super_operations ext2_sops = {
         .alloc_inode    = ext2_alloc_inode,
         .destroy_inode  = ext2_destroy_inode,
-        .read_inode     = ext2_read_inode,
         .write_inode    = ext2_write_inode,
         .delete_inode   = ext2_delete_inode,
         .put_super      = ext2_put_super,
@@ -326,11 +328,10 @@ static struct inode *ext2_nfs_get_inode(struct super_block *sb,
          * it might be "neater" to call ext2_get_inode first and check
          * if the inode is valid.....
          */
-        inode = iget(sb, ino);
-        if (inode == NULL)
-                return ERR_PTR(-ENOMEM);
-        if (is_bad_inode(inode) ||
-            (generation && inode->i_generation != generation)) {
+        inode = ext2_iget(sb, ino);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
+        if (generation && inode->i_generation != generation) {
                 /* we didn't find the right inode.. */
                 iput(inode);
                 return ERR_PTR(-ESTALE);
@@ -617,27 +618,24 @@ static int ext2_setup_super (struct super_block * sb,
         return res;
 }
 
-static int ext2_check_descriptors (struct super_block * sb)
+static int ext2_check_descriptors(struct super_block *sb)
 {
         int i;
-        int desc_block = 0;
         struct ext2_sb_info *sbi = EXT2_SB(sb);
         unsigned long first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
         unsigned long last_block;
-        struct ext2_group_desc * gdp = NULL;
 
         ext2_debug ("Checking group descriptors");
 
-        for (i = 0; i < sbi->s_groups_count; i++)
-        {
+        for (i = 0; i < sbi->s_groups_count; i++) {
+                struct ext2_group_desc *gdp = ext2_get_group_desc(sb, i, NULL);
+
                 if (i == sbi->s_groups_count - 1)
                         last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1;
                 else
                         last_block = first_block +
                                 (EXT2_BLOCKS_PER_GROUP(sb) - 1);
 
-                if ((i % EXT2_DESC_PER_BLOCK(sb)) == 0)
-                        gdp = (struct ext2_group_desc *) sbi->s_group_desc[desc_block++]->b_data;
                 if (le32_to_cpu(gdp->bg_block_bitmap) < first_block ||
                     le32_to_cpu(gdp->bg_block_bitmap) > last_block)
                 {
@@ -667,7 +665,6 @@ static int ext2_check_descriptors (struct super_block * sb)
                         return 0;
                 }
                 first_block += EXT2_BLOCKS_PER_GROUP(sb);
-                gdp++;
         }
         return 1;
 }
@@ -750,6 +747,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
         unsigned long logic_sb_block;
         unsigned long offset = 0;
         unsigned long def_mount_opts;
+        long ret = -EINVAL;
         int blocksize = BLOCK_SIZE;
         int db_count;
         int i, j;
@@ -820,10 +818,10 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
         
         if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_PANIC)
                 set_opt(sbi->s_mount_opt, ERRORS_PANIC);
-        else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_RO)
-                set_opt(sbi->s_mount_opt, ERRORS_RO);
-        else
+        else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_CONTINUE)
                 set_opt(sbi->s_mount_opt, ERRORS_CONT);
+        else
+                set_opt(sbi->s_mount_opt, ERRORS_RO);
 
         sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
         sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
@@ -868,8 +866,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 
         blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
 
-        if ((ext2_use_xip(sb)) && ((blocksize != PAGE_SIZE) ||
-                                  (sb->s_blocksize != blocksize))) {
+        if (ext2_use_xip(sb) && blocksize != PAGE_SIZE) {
                 if (!silent)
                         printk("XIP: Unsupported blocksize\n");
                 goto failed_mount;
@@ -1046,19 +1043,24 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
         sb->s_op = &ext2_sops;
         sb->s_export_op = &ext2_export_ops;
         sb->s_xattr = ext2_xattr_handlers;
-        root = iget(sb, EXT2_ROOT_INO);
-        sb->s_root = d_alloc_root(root);
-        if (!sb->s_root) {
-                iput(root);
-                printk(KERN_ERR "EXT2-fs: get root inode failed\n");
+        root = ext2_iget(sb, EXT2_ROOT_INO);
+        if (IS_ERR(root)) {
+                ret = PTR_ERR(root);
                 goto failed_mount3;
         }
         if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
-                dput(sb->s_root);
-                sb->s_root = NULL;
+                iput(root);
                 printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n");
                 goto failed_mount3;
         }
+
+        sb->s_root = d_alloc_root(root);
+        if (!sb->s_root) {
+                iput(root);
+                printk(KERN_ERR "EXT2-fs: get root inode failed\n");
+                ret = -ENOMEM;
+                goto failed_mount3;
+        }
         if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
                 ext2_warning(sb, __FUNCTION__,
                         "mounting ext3 filesystem as ext2");
@@ -1085,7 +1087,7 @@ failed_mount:
 failed_sbi:
         sb->s_fs_info = NULL;
         kfree(sbi);
-        return -EINVAL;
+        return ret;
 }
 
 static void ext2_commit_super (struct super_block * sb,
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index a8ba7e831278..da0cb2c0e437 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -80,13 +80,57 @@ struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
         return desc + offset;
 }
 
+static int ext3_valid_block_bitmap(struct super_block *sb,
+                                        struct ext3_group_desc *desc,
+                                        unsigned int block_group,
+                                        struct buffer_head *bh)
+{
+        ext3_grpblk_t offset;
+        ext3_grpblk_t next_zero_bit;
+        ext3_fsblk_t bitmap_blk;
+        ext3_fsblk_t group_first_block;
+
+        group_first_block = ext3_group_first_block_no(sb, block_group);
+
+        /* check whether block bitmap block number is set */
+        bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
+        offset = bitmap_blk - group_first_block;
+        if (!ext3_test_bit(offset, bh->b_data))
+                /* bad block bitmap */
+                goto err_out;
+
+        /* check whether the inode bitmap block number is set */
+        bitmap_blk = le32_to_cpu(desc->bg_inode_bitmap);
+        offset = bitmap_blk - group_first_block;
+        if (!ext3_test_bit(offset, bh->b_data))
+                /* bad block bitmap */
+                goto err_out;
+
+        /* check whether the inode table block number is set */
+        bitmap_blk = le32_to_cpu(desc->bg_inode_table);
+        offset = bitmap_blk - group_first_block;
+        next_zero_bit = ext3_find_next_zero_bit(bh->b_data,
+                                offset + EXT3_SB(sb)->s_itb_per_group,
+                                offset);
+        if (next_zero_bit >= offset + EXT3_SB(sb)->s_itb_per_group)
+                /* good bitmap for inode tables */
+                return 1;
+
+err_out:
+        ext3_error(sb, __FUNCTION__,
+                        "Invalid block bitmap - "
+                        "block_group = %d, block = %lu",
+                        block_group, bitmap_blk);
+        return 0;
+}
+
 /**
  * read_block_bitmap()
  * @sb:                 super block
  * @block_group:        given block group
  *
- * Read the bitmap for a given block_group, reading into the specified
- * slot in the superblock's bitmap cache.
+ * Read the bitmap for a given block_group,and validate the
+ * bits for block/inode/inode tables are set in the bitmaps
  *
  * Return buffer_head on success or NULL in case of failure.
  */
@@ -95,17 +139,35 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
 {
         struct ext3_group_desc * desc;
         struct buffer_head * bh = NULL;
+        ext3_fsblk_t bitmap_blk;
 
-        desc = ext3_get_group_desc (sb, block_group, NULL);
+        desc = ext3_get_group_desc(sb, block_group, NULL);
         if (!desc)
-                goto error_out;
-        bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap));
-        if (!bh)
-                ext3_error (sb, "read_block_bitmap",
+                return NULL;
+        bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
+        bh = sb_getblk(sb, bitmap_blk);
+        if (unlikely(!bh)) {
+                ext3_error(sb, __FUNCTION__,
                             "Cannot read block bitmap - "
                             "block_group = %d, block_bitmap = %u",
                             block_group, le32_to_cpu(desc->bg_block_bitmap));
-error_out:
+                return NULL;
+        }
+        if (likely(bh_uptodate_or_lock(bh)))
+                return bh;
+
+        if (bh_submit_read(bh) < 0) {
+                brelse(bh);
+                ext3_error(sb, __FUNCTION__,
+                            "Cannot read block bitmap - "
+                            "block_group = %d, block_bitmap = %u",
+                            block_group, le32_to_cpu(desc->bg_block_bitmap));
+                return NULL;
+        }
+        if (!ext3_valid_block_bitmap(sb, desc, block_group, bh)) {
+                brelse(bh);
+                return NULL;
+        }
         return bh;
 }
 /*
@@ -468,11 +530,13 @@ do_more:
             in_range (block, le32_to_cpu(desc->bg_inode_table),
                       sbi->s_itb_per_group) ||
             in_range (block + count - 1, le32_to_cpu(desc->bg_inode_table),
-                      sbi->s_itb_per_group))
+                      sbi->s_itb_per_group)) {
                 ext3_error (sb, "ext3_free_blocks",
                             "Freeing blocks in system zones - "
                             "Block = "E3FSBLK", count = %lu",
                             block, count);
+                goto error_return;
+        }
 
         /*
          * We are about to start releasing blocks in the bitmap,
@@ -566,9 +630,7 @@ do_more:
         jbd_unlock_bh_state(bitmap_bh);
 
         spin_lock(sb_bgl_lock(sbi, block_group));
-        desc->bg_free_blocks_count =
-                cpu_to_le16(le16_to_cpu(desc->bg_free_blocks_count) +
-                        group_freed);
+        le16_add_cpu(&desc->bg_free_blocks_count, group_freed);
         spin_unlock(sb_bgl_lock(sbi, block_group));
         percpu_counter_add(&sbi->s_freeblocks_counter, count);
 
@@ -1508,7 +1570,7 @@ retry_alloc:
 
         /*
          * Now search the rest of the groups.  We assume that
-         * i and gdp correctly point to the last group visited.
+         * group_no and gdp correctly point to the last group visited.
          */
         for (bgi = 0; bgi < ngroups; bgi++) {
                 group_no++;
@@ -1575,11 +1637,13 @@ allocated:
             in_range(ret_block, le32_to_cpu(gdp->bg_inode_table),
                       EXT3_SB(sb)->s_itb_per_group) ||
             in_range(ret_block + num - 1, le32_to_cpu(gdp->bg_inode_table),
-                      EXT3_SB(sb)->s_itb_per_group))
+                      EXT3_SB(sb)->s_itb_per_group)) {
                 ext3_error(sb, "ext3_new_block",
                             "Allocating block in system zone - "
                             "blocks from "E3FSBLK", length %lu",
                              ret_block, num);
+                goto out;
+        }
 
         performed_allocation = 1;
 
@@ -1630,8 +1694,7 @@ allocated:
                         ret_block, goal_hits, goal_attempts);
 
         spin_lock(sb_bgl_lock(sbi, group_no));
-        gdp->bg_free_blocks_count =
-                        cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count)-num);
+        le16_add_cpu(&gdp->bg_free_blocks_count, -num);
         spin_unlock(sb_bgl_lock(sbi, group_no));
         percpu_counter_sub(&sbi->s_freeblocks_counter, num);
 
@@ -1782,11 +1845,7 @@ static unsigned long ext3_bg_num_gdb_meta(struct super_block *sb, int group)
 
 static unsigned long ext3_bg_num_gdb_nometa(struct super_block *sb, int group)
 {
-        if (EXT3_HAS_RO_COMPAT_FEATURE(sb,
-                                EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
-                        !ext3_group_sparse(group))
-                return 0;
-        return EXT3_SB(sb)->s_gdb_count;
+        return ext3_bg_has_super(sb, group) ? EXT3_SB(sb)->s_gdb_count : 0;
 }
 
 /**
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 1bc8cd89c51d..4f4020c54683 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -164,11 +164,9 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
 
                 if (gdp) {
                         spin_lock(sb_bgl_lock(sbi, block_group));
-                        gdp->bg_free_inodes_count = cpu_to_le16(
-                                le16_to_cpu(gdp->bg_free_inodes_count) + 1);
+                        le16_add_cpu(&gdp->bg_free_inodes_count, 1);
                         if (is_directory)
-                                gdp->bg_used_dirs_count = cpu_to_le16(
-                                  le16_to_cpu(gdp->bg_used_dirs_count) - 1);
+                                le16_add_cpu(&gdp->bg_used_dirs_count, -1);
                         spin_unlock(sb_bgl_lock(sbi, block_group));
                         percpu_counter_inc(&sbi->s_freeinodes_counter);
                         if (is_directory)
@@ -527,11 +525,9 @@ got:
         err = ext3_journal_get_write_access(handle, bh2);
         if (err) goto fail;
         spin_lock(sb_bgl_lock(sbi, group));
-        gdp->bg_free_inodes_count =
-                cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
+        le16_add_cpu(&gdp->bg_free_inodes_count, -1);
         if (S_ISDIR(mode)) {
-                gdp->bg_used_dirs_count =
-                        cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
+                le16_add_cpu(&gdp->bg_used_dirs_count, 1);
         }
         spin_unlock(sb_bgl_lock(sbi, group));
         BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
@@ -642,14 +638,15 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
         unsigned long max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
         unsigned long block_group;
         int bit;
-        struct buffer_head *bitmap_bh = NULL;
+        struct buffer_head *bitmap_bh;
         struct inode *inode = NULL;
+        long err = -EIO;
 
         /* Error cases - e2fsck has already cleaned up for us */
         if (ino > max_ino) {
                 ext3_warning(sb, __FUNCTION__,
                              "bad orphan ino %lu!  e2fsck was run?", ino);
-                goto out;
+                goto error;
         }
 
         block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
@@ -658,38 +655,49 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
         if (!bitmap_bh) {
                 ext3_warning(sb, __FUNCTION__,
                              "inode bitmap error for orphan %lu", ino);
-                goto out;
+                goto error;
         }
 
         /* Having the inode bit set should be a 100% indicator that this
          * is a valid orphan (no e2fsck run on fs).  Orphans also include
          * inodes that were being truncated, so we can't check i_nlink==0.
          */
-        if (!ext3_test_bit(bit, bitmap_bh->b_data) ||
-                        !(inode = iget(sb, ino)) || is_bad_inode(inode) ||
-                        NEXT_ORPHAN(inode) > max_ino) {
-                ext3_warning(sb, __FUNCTION__,
-                             "bad orphan inode %lu!  e2fsck was run?", ino);
-                printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
-                       bit, (unsigned long long)bitmap_bh->b_blocknr,
-                       ext3_test_bit(bit, bitmap_bh->b_data));
-                printk(KERN_NOTICE "inode=%p\n", inode);
-                if (inode) {
-                        printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
-                               is_bad_inode(inode));
-                        printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
-                               NEXT_ORPHAN(inode));
-                        printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
-                }
+        if (!ext3_test_bit(bit, bitmap_bh->b_data))
+                goto bad_orphan;
+
+        inode = ext3_iget(sb, ino);
+        if (IS_ERR(inode))
+                goto iget_failed;
+
+        if (NEXT_ORPHAN(inode) > max_ino)
+                goto bad_orphan;
+        brelse(bitmap_bh);
+        return inode;
+
+iget_failed:
+        err = PTR_ERR(inode);
+        inode = NULL;
+bad_orphan:
+        ext3_warning(sb, __FUNCTION__,
+                     "bad orphan inode %lu!  e2fsck was run?", ino);
+        printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
+               bit, (unsigned long long)bitmap_bh->b_blocknr,
+               ext3_test_bit(bit, bitmap_bh->b_data));
+        printk(KERN_NOTICE "inode=%p\n", inode);
+        if (inode) {
+                printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
+                       is_bad_inode(inode));
+                printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
+                       NEXT_ORPHAN(inode));
+                printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
                 /* Avoid freeing blocks if we got a bad deleted inode */
-                if (inode && inode->i_nlink == 0)
+                if (inode->i_nlink == 0)
                         inode->i_blocks = 0;
                 iput(inode);
-                inode = NULL;
         }
-out:
         brelse(bitmap_bh);
-        return inode;
+error:
+        return ERR_PTR(err);
 }
 
 unsigned long ext3_count_free_inodes (struct super_block * sb)
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 9b162cd6c16c..eb95670a27eb 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -439,16 +439,14 @@ static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind)
  *      ext3_find_goal - find a prefered place for allocation.
  *      @inode: owner
  *      @block:  block we want
- *      @chain:  chain of indirect blocks
  *      @partial: pointer to the last triple within a chain
- *      @goal:  place to store the result.
  *
  *      Normally this function find the prefered place for block allocation,
- *      stores it in *@goal and returns zero.
+ *      returns it.
  */
 
 static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block,
-                Indirect chain[4], Indirect *partial)
+                                   Indirect *partial)
 {
         struct ext3_block_alloc_info *block_i;
 
@@ -884,7 +882,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
         if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info))
                 ext3_init_block_alloc_info(inode);
 
-        goal = ext3_find_goal(inode, iblock, chain, partial);
+        goal = ext3_find_goal(inode, iblock, partial);
 
         /* the number of blocks need to allocate for [d,t]indirect blocks */
         indirect_blks = (chain + depth) - partial - 1;
@@ -941,55 +939,45 @@ out:
         return err;
 }
 
-#define DIO_CREDITS (EXT3_RESERVE_TRANS_BLOCKS + 32)
+/* Maximum number of blocks we map for direct IO at once. */
+#define DIO_MAX_BLOCKS 4096
+/*
+ * Number of credits we need for writing DIO_MAX_BLOCKS:
+ * We need sb + group descriptor + bitmap + inode -> 4
+ * For B blocks with A block pointers per block we need:
+ * 1 (triple ind.) + (B/A/A + 2) (doubly ind.) + (B/A + 2) (indirect).
+ * If we plug in 4096 for B and 256 for A (for 1KB block size), we get 25.
+ */
+#define DIO_CREDITS 25
 
 static int ext3_get_block(struct inode *inode, sector_t iblock,
                         struct buffer_head *bh_result, int create)
 {
         handle_t *handle = ext3_journal_current_handle();
-        int ret = 0;
+        int ret = 0, started = 0;
         unsigned max_blocks = bh_result->b_size >> inode->i_blkbits;
 
-        if (!create)
-                goto get_block;         /* A read */
-
-        if (max_blocks == 1)
-                goto get_block;         /* A single block get */
-
-        if (handle->h_transaction->t_state == T_LOCKED) {
-                /*
-                 * Huge direct-io writes can hold off commits for long
-                 * periods of time.  Let this commit run.
-                 */
-                ext3_journal_stop(handle);
-                handle = ext3_journal_start(inode, DIO_CREDITS);
-                if (IS_ERR(handle))
+        if (create && !handle) {        /* Direct IO write... */
+                if (max_blocks > DIO_MAX_BLOCKS)
+                        max_blocks = DIO_MAX_BLOCKS;
+                handle = ext3_journal_start(inode, DIO_CREDITS +
+                                2 * EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb));
+                if (IS_ERR(handle)) {
                         ret = PTR_ERR(handle);
-                goto get_block;
-        }
-
-        if (handle->h_buffer_credits <= EXT3_RESERVE_TRANS_BLOCKS) {
-                /*
-                 * Getting low on buffer credits...
-                 */
-                ret = ext3_journal_extend(handle, DIO_CREDITS);
-                if (ret > 0) {
-                        /*
-                         * Couldn't extend the transaction.  Start a new one.
-                         */
-                        ret = ext3_journal_restart(handle, DIO_CREDITS);
+                        goto out;
                 }
+                started = 1;
         }
 
-get_block:
-        if (ret == 0) {
-                ret = ext3_get_blocks_handle(handle, inode, iblock,
+        ret = ext3_get_blocks_handle(handle, inode, iblock,
                                         max_blocks, bh_result, create, 0);
-                if (ret > 0) {
-                        bh_result->b_size = (ret << inode->i_blkbits);
-                        ret = 0;
-                }
+        if (ret > 0) {
+                bh_result->b_size = (ret << inode->i_blkbits);
+                ret = 0;
         }
+        if (started)
+                ext3_journal_stop(handle);
+out:
         return ret;
 }
 
@@ -1680,7 +1668,8 @@ static int ext3_releasepage(struct page *page, gfp_t wait)
  * if the machine crashes during the write.
  *
  * If the O_DIRECT write is intantiating holes inside i_size and the machine
- * crashes then stale disk data _may_ be exposed inside the file.
+ * crashes then stale disk data _may_ be exposed inside the file. But current
+ * VFS code falls back into buffered path in that case so we are safe.
  */
 static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
                         const struct iovec *iov, loff_t offset,
@@ -1689,7 +1678,7 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
         struct file *file = iocb->ki_filp;
         struct inode *inode = file->f_mapping->host;
         struct ext3_inode_info *ei = EXT3_I(inode);
-        handle_t *handle = NULL;
+        handle_t *handle;
         ssize_t ret;
         int orphan = 0;
         size_t count = iov_length(iov, nr_segs);
@@ -1697,17 +1686,21 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
         if (rw == WRITE) {
                 loff_t final_size = offset + count;
 
-                handle = ext3_journal_start(inode, DIO_CREDITS);
-                if (IS_ERR(handle)) {
-                        ret = PTR_ERR(handle);
-                        goto out;
-                }
                 if (final_size > inode->i_size) {
+                        /* Credits for sb + inode write */
+                        handle = ext3_journal_start(inode, 2);
+                        if (IS_ERR(handle)) {
+                                ret = PTR_ERR(handle);
+                                goto out;
+                        }
                         ret = ext3_orphan_add(handle, inode);
-                        if (ret)
-                                goto out_stop;
+                        if (ret) {
+                                ext3_journal_stop(handle);
+                                goto out;
+                        }
                         orphan = 1;
                         ei->i_disksize = inode->i_size;
+                        ext3_journal_stop(handle);
                 }
         }
 
@@ -1715,18 +1708,21 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
                                  offset, nr_segs,
                                  ext3_get_block, NULL);
 
-        /*
-         * Reacquire the handle: ext3_get_block() can restart the transaction
-         */
-        handle = ext3_journal_current_handle();
-
-out_stop:
-        if (handle) {
+        if (orphan) {
                 int err;
 
-                if (orphan && inode->i_nlink)
+                /* Credits for sb + inode write */
+                handle = ext3_journal_start(inode, 2);
+                if (IS_ERR(handle)) {
+                        /* This is really bad luck. We've written the data
+                         * but cannot extend i_size. Bail out and pretend
+                         * the write failed... */
+                        ret = PTR_ERR(handle);
+                        goto out;
+                }
+                if (inode->i_nlink)
                         ext3_orphan_del(handle, inode);
-                if (orphan && ret > 0) {
+                if (ret > 0) {
                         loff_t end = offset + ret;
                         if (end > inode->i_size) {
                                 ei->i_disksize = end;
@@ -1845,7 +1841,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
          */
         if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
              ext3_should_writeback_data(inode) && PageUptodate(page)) {
-                zero_user_page(page, offset, length, KM_USER0);
+                zero_user(page, offset, length);
                 set_page_dirty(page);
                 goto unlock;
         }
@@ -1898,7 +1894,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
                         goto unlock;
         }
 
-        zero_user_page(page, offset, length, KM_USER0);
+        zero_user(page, offset, length);
         BUFFER_TRACE(bh, "zeroed end of block");
 
         err = 0;
@@ -2658,21 +2654,31 @@ void ext3_get_inode_flags(struct ext3_inode_info *ei)
                 ei->i_flags |= EXT3_DIRSYNC_FL;
 }
 
-void ext3_read_inode(struct inode * inode)
+struct inode *ext3_iget(struct super_block *sb, unsigned long ino)
 {
         struct ext3_iloc iloc;
         struct ext3_inode *raw_inode;
-        struct ext3_inode_info *ei = EXT3_I(inode);
+        struct ext3_inode_info *ei;
         struct buffer_head *bh;
+        struct inode *inode;
+        long ret;
         int block;
 
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        ei = EXT3_I(inode);
 #ifdef CONFIG_EXT3_FS_POSIX_ACL
         ei->i_acl = EXT3_ACL_NOT_CACHED;
         ei->i_default_acl = EXT3_ACL_NOT_CACHED;
 #endif
         ei->i_block_alloc_info = NULL;
 
-        if (__ext3_get_inode_loc(inode, &iloc, 0))
+        ret = __ext3_get_inode_loc(inode, &iloc, 0);
+        if (ret < 0)
                 goto bad_inode;
         bh = iloc.bh;
         raw_inode = ext3_raw_inode(&iloc);
@@ -2703,6 +2709,7 @@ void ext3_read_inode(struct inode * inode)
                     !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ORPHAN_FS)) {
                         /* this inode is deleted */
                         brelse (bh);
+                        ret = -ESTALE;
                         goto bad_inode;
                 }
                 /* The only unlinked inodes we let through here have
@@ -2746,6 +2753,7 @@ void ext3_read_inode(struct inode * inode)
                 if (EXT3_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
                     EXT3_INODE_SIZE(inode->i_sb)) {
                         brelse (bh);
+                        ret = -EIO;
                         goto bad_inode;
                 }
                 if (ei->i_extra_isize == 0) {
@@ -2787,11 +2795,12 @@ void ext3_read_inode(struct inode * inode)
         }
         brelse (iloc.bh);
         ext3_set_inode_flags(inode);
-        return;
+        unlock_new_inode(inode);
+        return inode;
 
 bad_inode:
-        make_bad_inode(inode);
-        return;
+        iget_failed(inode);
+        return ERR_PTR(ret);
 }
 
 /*
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 4ab6f76e63d0..dec3e0d88ab1 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -860,14 +860,10 @@ static struct buffer_head * ext3_find_entry (struct dentry *dentry,
         int nblocks, i, err;
         struct inode *dir = dentry->d_parent->d_inode;
         int namelen;
-        const u8 *name;
-        unsigned blocksize;
 
         *res_dir = NULL;
         sb = dir->i_sb;
-        blocksize = sb->s_blocksize;
         namelen = dentry->d_name.len;
-        name = dentry->d_name.name;
         if (namelen > EXT3_NAME_LEN)
                 return NULL;
         if (is_dx(dir)) {
@@ -1041,17 +1037,11 @@ static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, str
                 if (!ext3_valid_inum(dir->i_sb, ino)) {
                         ext3_error(dir->i_sb, "ext3_lookup",
                                    "bad inode number: %lu", ino);
-                        inode = NULL;
-                } else
-                        inode = iget(dir->i_sb, ino);
-
-                if (!inode)
-                        return ERR_PTR(-EACCES);
-
-                if (is_bad_inode(inode)) {
-                        iput(inode);
-                        return ERR_PTR(-ENOENT);
+                        return ERR_PTR(-EIO);
                 }
+                inode = ext3_iget(dir->i_sb, ino);
+                if (IS_ERR(inode))
+                        return ERR_CAST(inode);
         }
         return d_splice_alias(inode, dentry);
 }
@@ -1080,18 +1070,13 @@ struct dentry *ext3_get_parent(struct dentry *child)
         if (!ext3_valid_inum(child->d_inode->i_sb, ino)) {
                 ext3_error(child->d_inode->i_sb, "ext3_get_parent",
                            "bad inode number: %lu", ino);
-                inode = NULL;
-        } else
-                inode = iget(child->d_inode->i_sb, ino);
-
-        if (!inode)
-                return ERR_PTR(-EACCES);
-
-        if (is_bad_inode(inode)) {
-                iput(inode);
-                return ERR_PTR(-ENOENT);
+                return ERR_PTR(-EIO);
         }
 
+        inode = ext3_iget(child->d_inode->i_sb, ino);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
+
         parent = d_alloc_anon(inode);
         if (!parent) {
                 iput(inode);
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 44de1453c301..9397d779c43d 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -518,8 +518,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
         EXT3_SB(sb)->s_gdb_count++;
         kfree(o_group_desc);
 
-        es->s_reserved_gdt_blocks =
-                cpu_to_le16(le16_to_cpu(es->s_reserved_gdt_blocks) - 1);
+        le16_add_cpu(&es->s_reserved_gdt_blocks, -1);
         ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
 
         return 0;
@@ -795,12 +794,11 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
                                      "No reserved GDT blocks, can't resize");
                         return -EPERM;
                 }
-                inode = iget(sb, EXT3_RESIZE_INO);
-                if (!inode || is_bad_inode(inode)) {
+                inode = ext3_iget(sb, EXT3_RESIZE_INO);
+                if (IS_ERR(inode)) {
                         ext3_warning(sb, __FUNCTION__,
                                      "Error opening resize inode");
-                        iput(inode);
-                        return -ENOENT;
+                        return PTR_ERR(inode);
                 }
         }
 
@@ -891,10 +889,8 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
          * blocks/inodes before the group is live won't actually let us
          * allocate the new space yet.
          */
-        es->s_blocks_count = cpu_to_le32(le32_to_cpu(es->s_blocks_count) +
-                input->blocks_count);
-        es->s_inodes_count = cpu_to_le32(le32_to_cpu(es->s_inodes_count) +
-                EXT3_INODES_PER_GROUP(sb));
+        le32_add_cpu(&es->s_blocks_count, input->blocks_count);
+        le32_add_cpu(&es->s_inodes_count, EXT3_INODES_PER_GROUP(sb));
 
         /*
          * We need to protect s_groups_count against other CPUs seeing
@@ -927,8 +923,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
 
         /* Update the reserved block counts only once the new group is
          * active. */
-        es->s_r_blocks_count = cpu_to_le32(le32_to_cpu(es->s_r_blocks_count) +
-                input->reserved_blocks);
+        le32_add_cpu(&es->s_r_blocks_count, input->reserved_blocks);
 
         /* Update the free space counts */
         percpu_counter_add(&sbi->s_freeblocks_counter,
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index f3675cc630e9..18769cc32377 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -575,16 +575,16 @@ static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
             le16_to_cpu(es->s_def_resgid) != EXT3_DEF_RESGID) {
                 seq_printf(seq, ",resgid=%u", sbi->s_resgid);
         }
-        if (test_opt(sb, ERRORS_CONT)) {
+        if (test_opt(sb, ERRORS_RO)) {
                 int def_errors = le16_to_cpu(es->s_errors);
 
                 if (def_errors == EXT3_ERRORS_PANIC ||
-                    def_errors == EXT3_ERRORS_RO) {
-                        seq_puts(seq, ",errors=continue");
+                    def_errors == EXT3_ERRORS_CONTINUE) {
+                        seq_puts(seq, ",errors=remount-ro");
                 }
         }
-        if (test_opt(sb, ERRORS_RO))
-                seq_puts(seq, ",errors=remount-ro");
+        if (test_opt(sb, ERRORS_CONT))
+                seq_puts(seq, ",errors=continue");
         if (test_opt(sb, ERRORS_PANIC))
                 seq_puts(seq, ",errors=panic");
         if (test_opt(sb, NO_UID32))
@@ -649,11 +649,10 @@ static struct inode *ext3_nfs_get_inode(struct super_block *sb,
          * Currently we don't know the generation for parent directory, so
          * a generation of 0 means "accept any"
          */
-        inode = iget(sb, ino);
-        if (inode == NULL)
-                return ERR_PTR(-ENOMEM);
-        if (is_bad_inode(inode) ||
-            (generation && inode->i_generation != generation)) {
+        inode = ext3_iget(sb, ino);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
+        if (generation && inode->i_generation != generation) {
                 iput(inode);
                 return ERR_PTR(-ESTALE);
         }
@@ -722,7 +721,6 @@ static struct quotactl_ops ext3_qctl_operations = {
 static const struct super_operations ext3_sops = {
         .alloc_inode    = ext3_alloc_inode,
         .destroy_inode  = ext3_destroy_inode,
-        .read_inode     = ext3_read_inode,
         .write_inode    = ext3_write_inode,
         .dirty_inode    = ext3_dirty_inode,
         .delete_inode   = ext3_delete_inode,
@@ -1224,7 +1222,7 @@ static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es,
 #endif
         if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
                 es->s_max_mnt_count = cpu_to_le16(EXT3_DFL_MAX_MNT_COUNT);
-        es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1);
+        le16_add_cpu(&es->s_mnt_count, 1);
         es->s_mtime = cpu_to_le32(get_seconds());
         ext3_update_dynamic_rev(sb);
         EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
@@ -1252,28 +1250,24 @@ static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es,
 }
 
 /* Called at mount-time, super-block is locked */
-static int ext3_check_descriptors (struct super_block * sb)
+static int ext3_check_descriptors(struct super_block *sb)
 {
         struct ext3_sb_info *sbi = EXT3_SB(sb);
         ext3_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
         ext3_fsblk_t last_block;
-        struct ext3_group_desc * gdp = NULL;
-        int desc_block = 0;
         int i;
 
         ext3_debug ("Checking group descriptors");
 
-        for (i = 0; i < sbi->s_groups_count; i++)
-        {
+        for (i = 0; i < sbi->s_groups_count; i++) {
+                struct ext3_group_desc *gdp = ext3_get_group_desc(sb, i, NULL);
+
                 if (i == sbi->s_groups_count - 1)
                         last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1;
                 else
                         last_block = first_block +
                                 (EXT3_BLOCKS_PER_GROUP(sb) - 1);
 
-                if ((i % EXT3_DESC_PER_BLOCK(sb)) == 0)
-                        gdp = (struct ext3_group_desc *)
-                                        sbi->s_group_desc[desc_block++]->b_data;
                 if (le32_to_cpu(gdp->bg_block_bitmap) < first_block ||
                     le32_to_cpu(gdp->bg_block_bitmap) > last_block)
                 {
@@ -1306,7 +1300,6 @@ static int ext3_check_descriptors (struct super_block * sb)
                         return 0;
                 }
                 first_block += EXT3_BLOCKS_PER_GROUP(sb);
-                gdp++;
         }
 
         sbi->s_es->s_free_blocks_count=cpu_to_le32(ext3_count_free_blocks(sb));
@@ -1383,8 +1376,8 @@ static void ext3_orphan_cleanup (struct super_block * sb,
         while (es->s_last_orphan) {
                 struct inode *inode;
 
-                if (!(inode =
-                      ext3_orphan_get(sb, le32_to_cpu(es->s_last_orphan)))) {
+                inode = ext3_orphan_get(sb, le32_to_cpu(es->s_last_orphan));
+                if (IS_ERR(inode)) {
                         es->s_last_orphan = 0;
                         break;
                 }
@@ -1513,6 +1506,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
         int db_count;
         int i;
         int needs_recovery;
+        int ret = -EINVAL;
         __le32 features;
         int err;
 
@@ -1583,10 +1577,10 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 
         if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_PANIC)
                 set_opt(sbi->s_mount_opt, ERRORS_PANIC);
-        else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_RO)
-                set_opt(sbi->s_mount_opt, ERRORS_RO);
-        else
+        else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_CONTINUE)
                 set_opt(sbi->s_mount_opt, ERRORS_CONT);
+        else
+                set_opt(sbi->s_mount_opt, ERRORS_RO);
 
         sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
         sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
@@ -1882,19 +1876,24 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
          * so we can safely mount the rest of the filesystem now.
          */
 
-        root = iget(sb, EXT3_ROOT_INO);
-        sb->s_root = d_alloc_root(root);
-        if (!sb->s_root) {
+        root = ext3_iget(sb, EXT3_ROOT_INO);
+        if (IS_ERR(root)) {
                 printk(KERN_ERR "EXT3-fs: get root inode failed\n");
-                iput(root);
+                ret = PTR_ERR(root);
                 goto failed_mount4;
         }
         if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
-                dput(sb->s_root);
-                sb->s_root = NULL;
+                iput(root);
                 printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n");
                 goto failed_mount4;
         }
+        sb->s_root = d_alloc_root(root);
+        if (!sb->s_root) {
+                printk(KERN_ERR "EXT3-fs: get root dentry failed\n");
+                iput(root);
+                ret = -ENOMEM;
+                goto failed_mount4;
+        }
 
         ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY);
         /*
@@ -1946,7 +1945,7 @@ out_fail:
         sb->s_fs_info = NULL;
         kfree(sbi);
         lock_kernel();
-        return -EINVAL;
+        return ret;
 }
 
 /*
@@ -1982,8 +1981,8 @@ static journal_t *ext3_get_journal(struct super_block *sb,
          * things happen if we iget() an unused inode, as the subsequent
          * iput() will try to delete it. */
 
-        journal_inode = iget(sb, journal_inum);
-        if (!journal_inode) {
+        journal_inode = ext3_iget(sb, journal_inum);
+        if (IS_ERR(journal_inode)) {
                 printk(KERN_ERR "EXT3-fs: no journal found.\n");
                 return NULL;
         }
@@ -1996,7 +1995,7 @@ static journal_t *ext3_get_journal(struct super_block *sb,
 
         jbd_debug(2, "Journal inode found at %p: %Ld bytes\n",
                   journal_inode, journal_inode->i_size);
-        if (is_bad_inode(journal_inode) || !S_ISREG(journal_inode->i_mode)) {
+        if (!S_ISREG(journal_inode->i_mode)) {
                 printk(KERN_ERR "EXT3-fs: invalid journal inode.\n");
                 iput(journal_inode);
                 return NULL;
@@ -2759,16 +2758,16 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id,
         if (err)
                 return err;
         /* Quotafile not on the same filesystem? */
-        if (nd.mnt->mnt_sb != sb) {
-                path_release(&nd);
+        if (nd.path.mnt->mnt_sb != sb) {
+                path_put(&nd.path);
                 return -EXDEV;
         }
         /* Quotafile not of fs root? */
-        if (nd.dentry->d_parent->d_inode != sb->s_root->d_inode)
+        if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
                 printk(KERN_WARNING
                         "EXT3-fs: Quota file not on filesystem root. "
                         "Journalled quota will not work.\n");
-        path_release(&nd);
+        path_put(&nd.path);
         return vfs_quota_on(sb, type, format_id, path);
 }
 
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 408373819e34..fb89c299bece 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -492,8 +492,7 @@ ext3_xattr_release_block(handle_t *handle, struct inode *inode,
                 get_bh(bh);
                 ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
         } else {
-                BHDR(bh)->h_refcount = cpu_to_le32(
-                                le32_to_cpu(BHDR(bh)->h_refcount) - 1);
+                le32_add_cpu(&BHDR(bh)->h_refcount, -1);
                 error = ext3_journal_dirty_metadata(handle, bh);
                 if (IS_SYNC(inode))
                         handle->h_sync = 1;
@@ -780,8 +779,7 @@ inserted:
                                 if (error)
                                         goto cleanup_dquot;
                                 lock_buffer(new_bh);
-                                BHDR(new_bh)->h_refcount = cpu_to_le32(1 +
-                                        le32_to_cpu(BHDR(new_bh)->h_refcount));
+                                le32_add_cpu(&BHDR(new_bh)->h_refcount, 1);
                                 ea_bdebug(new_bh, "reusing; refcount now=%d",
                                         le32_to_cpu(BHDR(new_bh)->h_refcount));
                                 unlock_buffer(new_bh);
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index ac75ea953d83..0737e05ba3dd 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -1700,7 +1700,7 @@ retry_alloc:
 
         /*
          * Now search the rest of the groups.  We assume that
-         * i and gdp correctly point to the last group visited.
+         * group_no and gdp correctly point to the last group visited.
          */
         for (bgi = 0; bgi < ngroups; bgi++) {
                 group_no++;
@@ -2011,11 +2011,7 @@ static unsigned long ext4_bg_num_gdb_meta(struct super_block *sb,
 static unsigned long ext4_bg_num_gdb_nometa(struct super_block *sb,
                                         ext4_group_t group)
 {
-        if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
-                                EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
-                        !ext4_group_sparse(group))
-                return 0;
-        return EXT4_SB(sb)->s_gdb_count;
+        return ext4_bg_has_super(sb, group) ? EXT4_SB(sb)->s_gdb_count : 0;
 }
 
 /**
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 575b5215c808..da18a74b966a 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -782,14 +782,15 @@ struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
         unsigned long max_ino = le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count);
         ext4_group_t block_group;
         int bit;
-        struct buffer_head *bitmap_bh = NULL;
+        struct buffer_head *bitmap_bh;
         struct inode *inode = NULL;
+        long err = -EIO;
 
         /* Error cases - e2fsck has already cleaned up for us */
         if (ino > max_ino) {
                 ext4_warning(sb, __FUNCTION__,
                              "bad orphan ino %lu!  e2fsck was run?", ino);
-                goto out;
+                goto error;
         }
 
         block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
@@ -798,38 +799,49 @@ struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
         if (!bitmap_bh) {
                 ext4_warning(sb, __FUNCTION__,
                              "inode bitmap error for orphan %lu", ino);
-                goto out;
+                goto error;
         }
 
         /* Having the inode bit set should be a 100% indicator that this
          * is a valid orphan (no e2fsck run on fs).  Orphans also include
          * inodes that were being truncated, so we can't check i_nlink==0.
          */
-        if (!ext4_test_bit(bit, bitmap_bh->b_data) ||
-                        !(inode = iget(sb, ino)) || is_bad_inode(inode) ||
-                        NEXT_ORPHAN(inode) > max_ino) {
-                ext4_warning(sb, __FUNCTION__,
-                             "bad orphan inode %lu!  e2fsck was run?", ino);
-                printk(KERN_NOTICE "ext4_test_bit(bit=%d, block=%llu) = %d\n",
-                       bit, (unsigned long long)bitmap_bh->b_blocknr,
-                       ext4_test_bit(bit, bitmap_bh->b_data));
-                printk(KERN_NOTICE "inode=%p\n", inode);
-                if (inode) {
-                        printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
-                               is_bad_inode(inode));
-                        printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
-                               NEXT_ORPHAN(inode));
-                        printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
-                }
+        if (!ext4_test_bit(bit, bitmap_bh->b_data))
+                goto bad_orphan;
+
+        inode = ext4_iget(sb, ino);
+        if (IS_ERR(inode))
+                goto iget_failed;
+
+        if (NEXT_ORPHAN(inode) > max_ino)
+                goto bad_orphan;
+        brelse(bitmap_bh);
+        return inode;
+
+iget_failed:
+        err = PTR_ERR(inode);
+        inode = NULL;
+bad_orphan:
+        ext4_warning(sb, __FUNCTION__,
+                     "bad orphan inode %lu!  e2fsck was run?", ino);
+        printk(KERN_NOTICE "ext4_test_bit(bit=%d, block=%llu) = %d\n",
+               bit, (unsigned long long)bitmap_bh->b_blocknr,
+               ext4_test_bit(bit, bitmap_bh->b_data));
+        printk(KERN_NOTICE "inode=%p\n", inode);
+        if (inode) {
+                printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
+                       is_bad_inode(inode));
+                printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
+                       NEXT_ORPHAN(inode));
+                printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
                 /* Avoid freeing blocks if we got a bad deleted inode */
-                if (inode && inode->i_nlink == 0)
+                if (inode->i_nlink == 0)
                         inode->i_blocks = 0;
                 iput(inode);
-                inode = NULL;
         }
-out:
         brelse(bitmap_bh);
-        return inode;
+error:
+        return ERR_PTR(err);
 }
 
 unsigned long ext4_count_free_inodes (struct super_block * sb)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index bb717cbb749c..7dd9b50d5ebc 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -429,16 +429,13 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind)
  *      ext4_find_goal - find a prefered place for allocation.
  *      @inode: owner
  *      @block:  block we want
- *      @chain:  chain of indirect blocks
  *      @partial: pointer to the last triple within a chain
- *      @goal:  place to store the result.
  *
  *      Normally this function find the prefered place for block allocation,
- *      stores it in *@goal and returns zero.
+ *      returns it.
  */
-
 static ext4_fsblk_t ext4_find_goal(struct inode *inode, ext4_lblk_t block,
-                Indirect chain[4], Indirect *partial)
+                Indirect *partial)
 {
         struct ext4_block_alloc_info *block_i;
 
@@ -839,7 +836,7 @@ int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
         if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info))
                 ext4_init_block_alloc_info(inode);
 
-        goal = ext4_find_goal(inode, iblock, chain, partial);
+        goal = ext4_find_goal(inode, iblock, partial);
 
         /* the number of blocks need to allocate for [d,t]indirect blocks */
         indirect_blks = (chain + depth) - partial - 1;
@@ -895,7 +892,16 @@ out:
         return err;
 }
 
-#define DIO_CREDITS (EXT4_RESERVE_TRANS_BLOCKS + 32)
+/* Maximum number of blocks we map for direct IO at once. */
+#define DIO_MAX_BLOCKS 4096
+/*
+ * Number of credits we need for writing DIO_MAX_BLOCKS:
+ * We need sb + group descriptor + bitmap + inode -> 4
+ * For B blocks with A block pointers per block we need:
+ * 1 (triple ind.) + (B/A/A + 2) (doubly ind.) + (B/A + 2) (indirect).
+ * If we plug in 4096 for B and 256 for A (for 1KB block size), we get 25.
+ */
+#define DIO_CREDITS 25
 
 int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
                         unsigned long max_blocks, struct buffer_head *bh,
@@ -942,49 +948,31 @@ static int ext4_get_block(struct inode *inode, sector_t iblock,
                         struct buffer_head *bh_result, int create)
 {
         handle_t *handle = ext4_journal_current_handle();
-        int ret = 0;
+        int ret = 0, started = 0;
         unsigned max_blocks = bh_result->b_size >> inode->i_blkbits;
 
-        if (!create)
-                goto get_block;         /* A read */
-
-        if (max_blocks == 1)
-                goto get_block;         /* A single block get */
-
-        if (handle->h_transaction->t_state == T_LOCKED) {
-                /*
-                 * Huge direct-io writes can hold off commits for long
-                 * periods of time.  Let this commit run.
-                 */
-                ext4_journal_stop(handle);
-                handle = ext4_journal_start(inode, DIO_CREDITS);
-                if (IS_ERR(handle))
+        if (create && !handle) {
+                /* Direct IO write... */
+                if (max_blocks > DIO_MAX_BLOCKS)
+                        max_blocks = DIO_MAX_BLOCKS;
+                handle = ext4_journal_start(inode, DIO_CREDITS +
+                              2 * EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb));
+                if (IS_ERR(handle)) {
                         ret = PTR_ERR(handle);
-                goto get_block;
-        }
-
-        if (handle->h_buffer_credits <= EXT4_RESERVE_TRANS_BLOCKS) {
-                /*
-                 * Getting low on buffer credits...
-                 */
-                ret = ext4_journal_extend(handle, DIO_CREDITS);
-                if (ret > 0) {
-                        /*
-                         * Couldn't extend the transaction.  Start a new one.
-                         */
-                        ret = ext4_journal_restart(handle, DIO_CREDITS);
+                        goto out;
                 }
+                started = 1;
         }
 
-get_block:
-        if (ret == 0) {
-                ret = ext4_get_blocks_wrap(handle, inode, iblock,
+        ret = ext4_get_blocks_wrap(handle, inode, iblock,
                                         max_blocks, bh_result, create, 0);
-                if (ret > 0) {
-                        bh_result->b_size = (ret << inode->i_blkbits);
-                        ret = 0;
-                }
+        if (ret > 0) {
+                bh_result->b_size = (ret << inode->i_blkbits);
+                ret = 0;
         }
+        if (started)
+                ext4_journal_stop(handle);
+out:
         return ret;
 }
 
@@ -1674,7 +1662,8 @@ static int ext4_releasepage(struct page *page, gfp_t wait)
  * if the machine crashes during the write.
  *
  * If the O_DIRECT write is intantiating holes inside i_size and the machine
- * crashes then stale disk data _may_ be exposed inside the file.
+ * crashes then stale disk data _may_ be exposed inside the file. But current
+ * VFS code falls back into buffered path in that case so we are safe.
  */
 static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
                         const struct iovec *iov, loff_t offset,
@@ -1683,7 +1672,7 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
         struct file *file = iocb->ki_filp;
         struct inode *inode = file->f_mapping->host;
         struct ext4_inode_info *ei = EXT4_I(inode);
-        handle_t *handle = NULL;
+        handle_t *handle;
         ssize_t ret;
         int orphan = 0;
         size_t count = iov_length(iov, nr_segs);
@@ -1691,17 +1680,21 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
         if (rw == WRITE) {
                 loff_t final_size = offset + count;
 
-                handle = ext4_journal_start(inode, DIO_CREDITS);
-                if (IS_ERR(handle)) {
-                        ret = PTR_ERR(handle);
-                        goto out;
-                }
                 if (final_size > inode->i_size) {
+                        /* Credits for sb + inode write */
+                        handle = ext4_journal_start(inode, 2);
+                        if (IS_ERR(handle)) {
+                                ret = PTR_ERR(handle);
+                                goto out;
+                        }
                         ret = ext4_orphan_add(handle, inode);
-                        if (ret)
-                                goto out_stop;
+                        if (ret) {
+                                ext4_journal_stop(handle);
+                                goto out;
+                        }
                         orphan = 1;
                         ei->i_disksize = inode->i_size;
+                        ext4_journal_stop(handle);
                 }
         }
 
@@ -1709,18 +1702,21 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
                                  offset, nr_segs,
                                  ext4_get_block, NULL);
 
-        /*
-         * Reacquire the handle: ext4_get_block() can restart the transaction
-         */
-        handle = ext4_journal_current_handle();
-
-out_stop:
-        if (handle) {
+        if (orphan) {
                 int err;
 
-                if (orphan && inode->i_nlink)
+                /* Credits for sb + inode write */
+                handle = ext4_journal_start(inode, 2);
+                if (IS_ERR(handle)) {
+                        /* This is really bad luck. We've written the data
+                         * but cannot extend i_size. Bail out and pretend
+                         * the write failed... */
+                        ret = PTR_ERR(handle);
+                        goto out;
+                }
+                if (inode->i_nlink)
                         ext4_orphan_del(handle, inode);
-                if (orphan && ret > 0) {
+                if (ret > 0) {
                         loff_t end = offset + ret;
                         if (end > inode->i_size) {
                                 ei->i_disksize = end;
@@ -1840,7 +1836,7 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page,
          */
         if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
              ext4_should_writeback_data(inode) && PageUptodate(page)) {
-                zero_user_page(page, offset, length, KM_USER0);
+                zero_user(page, offset, length);
                 set_page_dirty(page);
                 goto unlock;
         }
@@ -1893,7 +1889,7 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page,
                         goto unlock;
         }
 
-        zero_user_page(page, offset, length, KM_USER0);
+        zero_user(page, offset, length);
 
         BUFFER_TRACE(bh, "zeroed end of block");
 
@@ -2683,21 +2679,31 @@ static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
         }
 }
 
-void ext4_read_inode(struct inode * inode)
+struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
 {
         struct ext4_iloc iloc;
         struct ext4_inode *raw_inode;
-        struct ext4_inode_info *ei = EXT4_I(inode);
+        struct ext4_inode_info *ei;
         struct buffer_head *bh;
+        struct inode *inode;
+        long ret;
         int block;
 
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        ei = EXT4_I(inode);
 #ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
         ei->i_acl = EXT4_ACL_NOT_CACHED;
         ei->i_default_acl = EXT4_ACL_NOT_CACHED;
 #endif
         ei->i_block_alloc_info = NULL;
 
-        if (__ext4_get_inode_loc(inode, &iloc, 0))
+        ret = __ext4_get_inode_loc(inode, &iloc, 0);
+        if (ret < 0)
                 goto bad_inode;
         bh = iloc.bh;
         raw_inode = ext4_raw_inode(&iloc);
@@ -2723,6 +2729,7 @@ void ext4_read_inode(struct inode * inode)
                     !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS)) {
                         /* this inode is deleted */
                         brelse (bh);
+                        ret = -ESTALE;
                         goto bad_inode;
                 }
                 /* The only unlinked inodes we let through here have
@@ -2750,17 +2757,12 @@ void ext4_read_inode(struct inode * inode)
                 ei->i_data[block] = raw_inode->i_block[block];
         INIT_LIST_HEAD(&ei->i_orphan);
 
-        if (inode->i_ino >= EXT4_FIRST_INO(inode->i_sb) + 1 &&
-            EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
-                /*
-                 * When mke2fs creates big inodes it does not zero out
-                 * the unused bytes above EXT4_GOOD_OLD_INODE_SIZE,
-                 * so ignore those first few inodes.
-                 */
+        if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
                 ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
                 if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
                     EXT4_INODE_SIZE(inode->i_sb)) {
                         brelse (bh);
+                        ret = -EIO;
                         goto bad_inode;
                 }
                 if (ei->i_extra_isize == 0) {
@@ -2814,11 +2816,12 @@ void ext4_read_inode(struct inode * inode)
         }
         brelse (iloc.bh);
         ext4_set_inode_flags(inode);
-        return;
+        unlock_new_inode(inode);
+        return inode;
 
 bad_inode:
-        make_bad_inode(inode);
-        return;
+        iget_failed(inode);
+        return ERR_PTR(ret);
 }
 
 static int ext4_inode_blocks_set(handle_t *handle,
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 76e5fedc0a0b..dd0fcfcb35ce 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -420,6 +420,7 @@
 #define MB_DEFAULT_GROUP_PREALLOC       512
 
 static struct kmem_cache *ext4_pspace_cachep;
+static struct kmem_cache *ext4_ac_cachep;
 
 #ifdef EXT4_BB_MAX_BLOCKS
 #undef EXT4_BB_MAX_BLOCKS
@@ -680,7 +681,6 @@ static void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max)
 {
         char *bb;
 
-        /* FIXME!! is this needed */
         BUG_ON(EXT4_MB_BITMAP(e4b) == EXT4_MB_BUDDY(e4b));
         BUG_ON(max == NULL);
 
@@ -964,7 +964,7 @@ static void ext4_mb_generate_buddy(struct super_block *sb,
         grp->bb_fragments = fragments;
 
         if (free != grp->bb_free) {
-                printk(KERN_DEBUG
+                ext4_error(sb, __FUNCTION__,
                         "EXT4-fs: group %lu: %u blocks in bitmap, %u in gd\n",
                         group, free, grp->bb_free);
                 grp->bb_free = free;
@@ -1821,13 +1821,24 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
                 i = ext4_find_next_zero_bit(bitmap,
                                                 EXT4_BLOCKS_PER_GROUP(sb), i);
                 if (i >= EXT4_BLOCKS_PER_GROUP(sb)) {
-                        BUG_ON(free != 0);
+                        /*
+                         * IF we corrupt the bitmap  we won't find any
+                         * free blocks even though group info says we
+                         * we have free blocks
+                         */
+                        ext4_error(sb, __FUNCTION__, "%d free blocks as per "
+                                        "group info. But bitmap says 0\n",
+                                        free);
                         break;
                 }
 
                 mb_find_extent(e4b, 0, i, ac->ac_g_ex.fe_len, &ex);
                 BUG_ON(ex.fe_len <= 0);
-                BUG_ON(free < ex.fe_len);
+                if (free < ex.fe_len) {
+                        ext4_error(sb, __FUNCTION__, "%d free blocks as per "
+                                        "group info. But got %d blocks\n",
+                                        free, ex.fe_len);
+                }
 
                 ext4_mb_measure_extent(ac, &ex, e4b);
 
@@ -2959,12 +2970,19 @@ int __init init_ext4_mballoc(void)
         if (ext4_pspace_cachep == NULL)
                 return -ENOMEM;
 
+        ext4_ac_cachep =
+                kmem_cache_create("ext4_alloc_context",
+                                     sizeof(struct ext4_allocation_context),
+                                     0, SLAB_RECLAIM_ACCOUNT, NULL);
+        if (ext4_ac_cachep == NULL) {
+                kmem_cache_destroy(ext4_pspace_cachep);
+                return -ENOMEM;
+        }
 #ifdef CONFIG_PROC_FS
         proc_root_ext4 = proc_mkdir(EXT4_ROOT, proc_root_fs);
         if (proc_root_ext4 == NULL)
                 printk(KERN_ERR "EXT4-fs: Unable to create %s\n", EXT4_ROOT);
 #endif
-
         return 0;
 }
 
@@ -2972,6 +2990,7 @@ void exit_ext4_mballoc(void)
 {
         /* XXX: synchronize_rcu(); */
         kmem_cache_destroy(ext4_pspace_cachep);
+        kmem_cache_destroy(ext4_ac_cachep);
 #ifdef CONFIG_PROC_FS
         remove_proc_entry(EXT4_ROOT, proc_root_fs);
 #endif
@@ -3069,7 +3088,7 @@ static int ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 
 out_err:
         sb->s_dirt = 1;
-        put_bh(bitmap_bh);
+        brelse(bitmap_bh);
         return err;
 }
 
@@ -3354,13 +3373,10 @@ static void ext4_mb_use_group_pa(struct ext4_allocation_context *ac,
         ac->ac_pa = pa;
 
         /* we don't correct pa_pstart or pa_plen here to avoid
-         * possible race when tte group is being loaded concurrently
+         * possible race when the group is being loaded concurrently
          * instead we correct pa later, after blocks are marked
-         * in on-disk bitmap -- see ext4_mb_release_context() */
-        /*
-         * FIXME!! but the other CPUs can look at this particular
-         * pa and think that it have enought free blocks if we
-         * don't update pa_free here right ?
+         * in on-disk bitmap -- see ext4_mb_release_context()
+         * Other CPUs are prevented from allocating from this pa by lg_mutex
          */
         mb_debug("use %u/%u from group pa %p\n", pa->pa_lstart-len, len, pa);
 }
@@ -3699,7 +3715,7 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b,
                                 struct buffer_head *bitmap_bh,
                                 struct ext4_prealloc_space *pa)
 {
-        struct ext4_allocation_context ac;
+        struct ext4_allocation_context *ac;
         struct super_block *sb = e4b->bd_sb;
         struct ext4_sb_info *sbi = EXT4_SB(sb);
         unsigned long end;
@@ -3715,9 +3731,13 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b,
         BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
         end = bit + pa->pa_len;
 
-        ac.ac_sb = sb;
-        ac.ac_inode = pa->pa_inode;
-        ac.ac_op = EXT4_MB_HISTORY_DISCARD;
+        ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+
+        if (ac) {
+                ac->ac_sb = sb;
+                ac->ac_inode = pa->pa_inode;
+                ac->ac_op = EXT4_MB_HISTORY_DISCARD;
+        }
 
         while (bit < end) {
                 bit = ext4_find_next_zero_bit(bitmap_bh->b_data, end, bit);
@@ -3733,24 +3753,28 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b,
                                 (unsigned) group);
                 free += next - bit;
 
-                ac.ac_b_ex.fe_group = group;
-                ac.ac_b_ex.fe_start = bit;
-                ac.ac_b_ex.fe_len = next - bit;
-                ac.ac_b_ex.fe_logical = 0;
-                ext4_mb_store_history(&ac);
+                if (ac) {
+                        ac->ac_b_ex.fe_group = group;
+                        ac->ac_b_ex.fe_start = bit;
+                        ac->ac_b_ex.fe_len = next - bit;
+                        ac->ac_b_ex.fe_logical = 0;
+                        ext4_mb_store_history(ac);
+                }
 
                 mb_free_blocks(pa->pa_inode, e4b, bit, next - bit);
                 bit = next + 1;
         }
         if (free != pa->pa_free) {
-                printk(KERN_ERR "pa %p: logic %lu, phys. %lu, len %lu\n",
+                printk(KERN_CRIT "pa %p: logic %lu, phys. %lu, len %lu\n",
                         pa, (unsigned long) pa->pa_lstart,
                         (unsigned long) pa->pa_pstart,
                         (unsigned long) pa->pa_len);
-                printk(KERN_ERR "free %u, pa_free %u\n", free, pa->pa_free);
+                ext4_error(sb, __FUNCTION__, "free %u, pa_free %u\n",
+                                                free, pa->pa_free);
         }
-        BUG_ON(free != pa->pa_free);
         atomic_add(free, &sbi->s_mb_discarded);
+        if (ac)
+                kmem_cache_free(ext4_ac_cachep, ac);
 
         return err;
 }
@@ -3758,12 +3782,15 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b,
 static int ext4_mb_release_group_pa(struct ext4_buddy *e4b,
                                 struct ext4_prealloc_space *pa)
 {
-        struct ext4_allocation_context ac;
+        struct ext4_allocation_context *ac;
         struct super_block *sb = e4b->bd_sb;
         ext4_group_t group;
         ext4_grpblk_t bit;
 
-        ac.ac_op = EXT4_MB_HISTORY_DISCARD;
+        ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+
+        if (ac)
+                ac->ac_op = EXT4_MB_HISTORY_DISCARD;
 
         BUG_ON(pa->pa_deleted == 0);
         ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
@@ -3771,13 +3798,16 @@ static int ext4_mb_release_group_pa(struct ext4_buddy *e4b,
         mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
         atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
 
-        ac.ac_sb = sb;
-        ac.ac_inode = NULL;
-        ac.ac_b_ex.fe_group = group;
-        ac.ac_b_ex.fe_start = bit;
-        ac.ac_b_ex.fe_len = pa->pa_len;
-        ac.ac_b_ex.fe_logical = 0;
-        ext4_mb_store_history(&ac);
+        if (ac) {
+                ac->ac_sb = sb;
+                ac->ac_inode = NULL;
+                ac->ac_b_ex.fe_group = group;
+                ac->ac_b_ex.fe_start = bit;
+                ac->ac_b_ex.fe_len = pa->pa_len;
+                ac->ac_b_ex.fe_logical = 0;
+                ext4_mb_store_history(ac);
+                kmem_cache_free(ext4_ac_cachep, ac);
+        }
 
         return 0;
 }
@@ -4231,7 +4261,7 @@ static int ext4_mb_discard_preallocations(struct super_block *sb, int needed)
 ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
                                  struct ext4_allocation_request *ar, int *errp)
 {
-        struct ext4_allocation_context ac;
+        struct ext4_allocation_context *ac = NULL;
         struct ext4_sb_info *sbi;
         struct super_block *sb;
         ext4_fsblk_t block = 0;
@@ -4257,53 +4287,60 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
         }
         inquota = ar->len;
 
+        ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+        if (!ac) {
+                *errp = -ENOMEM;
+                return 0;
+        }
+
         ext4_mb_poll_new_transaction(sb, handle);
 
-        *errp = ext4_mb_initialize_context(&ac, ar);
+        *errp = ext4_mb_initialize_context(ac, ar);
         if (*errp) {
                 ar->len = 0;
                 goto out;
         }
 
-        ac.ac_op = EXT4_MB_HISTORY_PREALLOC;
-        if (!ext4_mb_use_preallocated(&ac)) {
+        ac->ac_op = EXT4_MB_HISTORY_PREALLOC;
+        if (!ext4_mb_use_preallocated(ac)) {
 
-                ac.ac_op = EXT4_MB_HISTORY_ALLOC;
-                ext4_mb_normalize_request(&ac, ar);
+                ac->ac_op = EXT4_MB_HISTORY_ALLOC;
+                ext4_mb_normalize_request(ac, ar);
 
 repeat:
                 /* allocate space in core */
-                ext4_mb_regular_allocator(&ac);
+                ext4_mb_regular_allocator(ac);
 
                 /* as we've just preallocated more space than
                  * user requested orinally, we store allocated
                  * space in a special descriptor */
-                if (ac.ac_status == AC_STATUS_FOUND &&
-                                ac.ac_o_ex.fe_len < ac.ac_b_ex.fe_len)
-                        ext4_mb_new_preallocation(&ac);
+                if (ac->ac_status == AC_STATUS_FOUND &&
+                                ac->ac_o_ex.fe_len < ac->ac_b_ex.fe_len)
+                        ext4_mb_new_preallocation(ac);
         }
 
-        if (likely(ac.ac_status == AC_STATUS_FOUND)) {
-                ext4_mb_mark_diskspace_used(&ac, handle);
+        if (likely(ac->ac_status == AC_STATUS_FOUND)) {
+                ext4_mb_mark_diskspace_used(ac, handle);
                 *errp = 0;
-                block = ext4_grp_offs_to_block(sb, &ac.ac_b_ex);
-                ar->len = ac.ac_b_ex.fe_len;
+                block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
+                ar->len = ac->ac_b_ex.fe_len;
         } else {
-                freed  = ext4_mb_discard_preallocations(sb, ac.ac_o_ex.fe_len);
+                freed  = ext4_mb_discard_preallocations(sb, ac->ac_o_ex.fe_len);
                 if (freed)
                         goto repeat;
                 *errp = -ENOSPC;
-                ac.ac_b_ex.fe_len = 0;
+                ac->ac_b_ex.fe_len = 0;
                 ar->len = 0;
-                ext4_mb_show_ac(&ac);
+                ext4_mb_show_ac(ac);
         }
 
-        ext4_mb_release_context(&ac);
+        ext4_mb_release_context(ac);
 
 out:
         if (ar->len < inquota)
                 DQUOT_FREE_BLOCK(ar->inode, inquota - ar->len);
 
+        kmem_cache_free(ext4_ac_cachep, ac);
         return block;
 }
 static void ext4_mb_poll_new_transaction(struct super_block *sb,
@@ -4405,9 +4442,9 @@ void ext4_mb_free_blocks(handle_t *handle, struct inode *inode,
                         unsigned long block, unsigned long count,
                         int metadata, unsigned long *freed)
 {
-        struct buffer_head *bitmap_bh = 0;
+        struct buffer_head *bitmap_bh = NULL;
         struct super_block *sb = inode->i_sb;
-        struct ext4_allocation_context ac;
+        struct ext4_allocation_context *ac = NULL;
         struct ext4_group_desc *gdp;
         struct ext4_super_block *es;
         unsigned long overflow;
@@ -4436,9 +4473,12 @@ void ext4_mb_free_blocks(handle_t *handle, struct inode *inode,
 
         ext4_debug("freeing block %lu\n", block);
 
-        ac.ac_op = EXT4_MB_HISTORY_FREE;
-        ac.ac_inode = inode;
-        ac.ac_sb = sb;
+        ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+        if (ac) {
+                ac->ac_op = EXT4_MB_HISTORY_FREE;
+                ac->ac_inode = inode;
+                ac->ac_sb = sb;
+        }
 
 do_more:
         overflow = 0;
@@ -4504,10 +4544,12 @@ do_more:
         BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
         err = ext4_journal_dirty_metadata(handle, bitmap_bh);
 
-        ac.ac_b_ex.fe_group = block_group;
-        ac.ac_b_ex.fe_start = bit;
-        ac.ac_b_ex.fe_len = count;
-        ext4_mb_store_history(&ac);
+        if (ac) {
+                ac->ac_b_ex.fe_group = block_group;
+                ac->ac_b_ex.fe_start = bit;
+                ac->ac_b_ex.fe_len = count;
+                ext4_mb_store_history(ac);
+        }
 
         if (metadata) {
                 /* blocks being freed are metadata. these blocks shouldn't
@@ -4548,5 +4590,7 @@ do_more:
 error_return:
         brelse(bitmap_bh);
         ext4_std_error(sb, err);
+        if (ac)
+                kmem_cache_free(ext4_ac_cachep, ac);
         return;
 }
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 3ebc2332f52e..8c6c685b9d22 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -61,10 +61,9 @@ static int finish_range(handle_t *handle, struct inode *inode,
                 retval = ext4_journal_restart(handle, needed);
                 if (retval)
                         goto err_out;
-        }
-        if (needed) {
+        } else if (needed) {
                 retval = ext4_journal_extend(handle, needed);
-                if (retval != 0) {
+                if (retval) {
                         /*
                          * IF not able to extend the journal restart the journal
                          */
@@ -220,6 +219,26 @@ static int update_tind_extent_range(handle_t *handle, struct inode *inode,
 
 }
 
+static int extend_credit_for_blkdel(handle_t *handle, struct inode *inode)
+{
+        int retval = 0, needed;
+
+        if (handle->h_buffer_credits > EXT4_RESERVE_TRANS_BLOCKS)
+                return 0;
+        /*
+         * We are freeing a blocks. During this we touch
+         * superblock, group descriptor and block bitmap.
+         * So allocate a credit of 3. We may update
+         * quota (user and group).
+         */
+        needed = 3 + 2*EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
+
+        if (ext4_journal_extend(handle, needed) != 0)
+                retval = ext4_journal_restart(handle, needed);
+
+        return retval;
+}
+
 static int free_dind_blocks(handle_t *handle,
                                 struct inode *inode, __le32 i_data)
 {
@@ -234,11 +253,14 @@ static int free_dind_blocks(handle_t *handle,
 
         tmp_idata = (__le32 *)bh->b_data;
         for (i = 0; i < max_entries; i++) {
-                if (tmp_idata[i])
+                if (tmp_idata[i]) {
+                        extend_credit_for_blkdel(handle, inode);
                         ext4_free_blocks(handle, inode,
                                         le32_to_cpu(tmp_idata[i]), 1, 1);
+                }
         }
         put_bh(bh);
+        extend_credit_for_blkdel(handle, inode);
         ext4_free_blocks(handle, inode, le32_to_cpu(i_data), 1, 1);
         return 0;
 }
@@ -267,29 +289,32 @@ static int free_tind_blocks(handle_t *handle,
                 }
         }
         put_bh(bh);
+        extend_credit_for_blkdel(handle, inode);
         ext4_free_blocks(handle, inode, le32_to_cpu(i_data), 1, 1);
         return 0;
 }
 
-static int free_ind_block(handle_t *handle, struct inode *inode)
+static int free_ind_block(handle_t *handle, struct inode *inode, __le32 *i_data)
 {
         int retval;
-        struct ext4_inode_info *ei = EXT4_I(inode);
 
-        if (ei->i_data[EXT4_IND_BLOCK])
+        /* ei->i_data[EXT4_IND_BLOCK] */
+        if (i_data[0]) {
+                extend_credit_for_blkdel(handle, inode);
                 ext4_free_blocks(handle, inode,
-                                le32_to_cpu(ei->i_data[EXT4_IND_BLOCK]), 1, 1);
+                                le32_to_cpu(i_data[0]), 1, 1);
+        }
 
-        if (ei->i_data[EXT4_DIND_BLOCK]) {
-                retval = free_dind_blocks(handle, inode,
-                                                ei->i_data[EXT4_DIND_BLOCK]);
+        /* ei->i_data[EXT4_DIND_BLOCK] */
+        if (i_data[1]) {
+                retval = free_dind_blocks(handle, inode, i_data[1]);
                 if (retval)
                         return retval;
         }
 
-        if (ei->i_data[EXT4_TIND_BLOCK]) {
-                retval = free_tind_blocks(handle, inode,
-                                                ei->i_data[EXT4_TIND_BLOCK]);
+        /* ei->i_data[EXT4_TIND_BLOCK] */
+        if (i_data[2]) {
+                retval = free_tind_blocks(handle, inode, i_data[2]);
                 if (retval)
                         return retval;
         }
@@ -297,15 +322,13 @@ static int free_ind_block(handle_t *handle, struct inode *inode)
 }
 
 static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
-                                struct inode *tmp_inode, int retval)
+                                struct inode *tmp_inode)
 {
+        int retval;
+        __le32  i_data[3];
         struct ext4_inode_info *ei = EXT4_I(inode);
         struct ext4_inode_info *tmp_ei = EXT4_I(tmp_inode);
 
-        retval = free_ind_block(handle, inode);
-        if (retval)
-                goto err_out;
-
         /*
          * One credit accounted for writing the
          * i_data field of the original inode
@@ -317,6 +340,11 @@ static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
                         goto err_out;
         }
 
+        i_data[0] = ei->i_data[EXT4_IND_BLOCK];
+        i_data[1] = ei->i_data[EXT4_DIND_BLOCK];
+        i_data[2] = ei->i_data[EXT4_TIND_BLOCK];
+
+        down_write(&EXT4_I(inode)->i_data_sem);
         /*
          * We have the extent map build with the tmp inode.
          * Now copy the i_data across
@@ -336,8 +364,15 @@ static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
         spin_lock(&inode->i_lock);
         inode->i_blocks += tmp_inode->i_blocks;
         spin_unlock(&inode->i_lock);
+        up_write(&EXT4_I(inode)->i_data_sem);
 
+        /*
+         * We mark the inode dirty after, because we decrement the
+         * i_blocks when freeing the indirect meta-data blocks
+         */
+        retval = free_ind_block(handle, inode, i_data);
         ext4_mark_inode_dirty(handle, inode);
+
 err_out:
         return retval;
 }
@@ -365,6 +400,7 @@ static int free_ext_idx(handle_t *handle, struct inode *inode,
                 }
         }
         put_bh(bh);
+        extend_credit_for_blkdel(handle, inode);
         ext4_free_blocks(handle, inode, block, 1, 1);
         return retval;
 }
@@ -414,7 +450,12 @@ int ext4_ext_migrate(struct inode *inode, struct file *filp,
         if ((EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL))
                 return -EINVAL;
 
-        down_write(&EXT4_I(inode)->i_data_sem);
+        if (S_ISLNK(inode->i_mode) && inode->i_blocks == 0)
+                /*
+                 * don't migrate fast symlink
+                 */
+                return retval;
+
         handle = ext4_journal_start(inode,
                                         EXT4_DATA_TRANS_BLOCKS(inode->i_sb) +
                                         EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
@@ -448,13 +489,6 @@ int ext4_ext_migrate(struct inode *inode, struct file *filp,
         ext4_orphan_add(handle, tmp_inode);
         ext4_journal_stop(handle);
 
-        ei = EXT4_I(inode);
-        i_data = ei->i_data;
-        memset(&lb, 0, sizeof(lb));
-
-        /* 32 bit block address 4 bytes */
-        max_entries = inode->i_sb->s_blocksize >> 2;
-
         /*
          * start with one credit accounted for
          * superblock modification.
@@ -463,7 +497,20 @@ int ext4_ext_migrate(struct inode *inode, struct file *filp,
          * trascation that created the inode. Later as and
          * when we add extents we extent the journal
          */
+        /*
+         * inode_mutex prevent write and truncate on the file. Read still goes
+         * through. We take i_data_sem in ext4_ext_swap_inode_data before we
+         * switch the inode format to prevent read.
+         */
+        mutex_lock(&(inode->i_mutex));
         handle = ext4_journal_start(inode, 1);
+
+        ei = EXT4_I(inode);
+        i_data = ei->i_data;
+        memset(&lb, 0, sizeof(lb));
+
+        /* 32 bit block address 4 bytes */
+        max_entries = inode->i_sb->s_blocksize >> 2;
         for (i = 0; i < EXT4_NDIR_BLOCKS; i++, blk_count++) {
                 if (i_data[i]) {
                         retval = update_extent_range(handle, tmp_inode,
@@ -501,19 +548,6 @@ int ext4_ext_migrate(struct inode *inode, struct file *filp,
          */
         retval = finish_range(handle, tmp_inode, &lb);
 err_out:
-        /*
-         * We are either freeing extent information or indirect
-         * blocks. During this we touch superblock, group descriptor
-         * and block bitmap. Later we mark the tmp_inode dirty
-         * via ext4_ext_tree_init. So allocate a credit of 4
-         * We may update quota (user and group).
-         *
-         * FIXME!! we may be touching bitmaps in different block groups.
-         */
-        if (ext4_journal_extend(handle,
-                        4 + 2*EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb)) != 0)
-                ext4_journal_restart(handle,
-                                4 + 2*EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb));
         if (retval)
                 /*
                  * Failure case delete the extent information with the
@@ -522,7 +556,11 @@ err_out:
                 free_ext_block(handle, tmp_inode);
         else
                 retval = ext4_ext_swap_inode_data(handle, inode,
-                                                        tmp_inode, retval);
+                                                        tmp_inode);
+
+        /* We mark the tmp_inode dirty via ext4_ext_tree_init. */
+        if (ext4_journal_extend(handle, 1) != 0)
+                ext4_journal_restart(handle, 1);
 
         /*
          * Mark the tmp_inode as of size zero
@@ -550,8 +588,7 @@ err_out:
         tmp_inode->i_nlink = 0;
 
         ext4_journal_stop(handle);
-
-        up_write(&EXT4_I(inode)->i_data_sem);
+        mutex_unlock(&(inode->i_mutex));
 
         if (tmp_inode)
                 iput(tmp_inode);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 67b6d8a1ceff..a9347fb43bcc 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1039,17 +1039,11 @@ static struct dentry *ext4_lookup(struct inode * dir, struct dentry *dentry, str
                 if (!ext4_valid_inum(dir->i_sb, ino)) {
                         ext4_error(dir->i_sb, "ext4_lookup",
                                    "bad inode number: %lu", ino);
-                        inode = NULL;
-                } else
-                        inode = iget(dir->i_sb, ino);
-
-                if (!inode)
-                        return ERR_PTR(-EACCES);
-
-                if (is_bad_inode(inode)) {
-                        iput(inode);
-                        return ERR_PTR(-ENOENT);
+                        return ERR_PTR(-EIO);
                 }
+                inode = ext4_iget(dir->i_sb, ino);
+                if (IS_ERR(inode))
+                        return ERR_CAST(inode);
         }
         return d_splice_alias(inode, dentry);
 }
@@ -1078,18 +1072,13 @@ struct dentry *ext4_get_parent(struct dentry *child)
         if (!ext4_valid_inum(child->d_inode->i_sb, ino)) {
                 ext4_error(child->d_inode->i_sb, "ext4_get_parent",
                            "bad inode number: %lu", ino);
-                inode = NULL;
-        } else
-                inode = iget(child->d_inode->i_sb, ino);
-
-        if (!inode)
-                return ERR_PTR(-EACCES);
-
-        if (is_bad_inode(inode)) {
-                iput(inode);
-                return ERR_PTR(-ENOENT);
+                return ERR_PTR(-EIO);
         }
 
+        inode = ext4_iget(child->d_inode->i_sb, ino);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
+
         parent = d_alloc_anon(inode);
         if (!parent) {
                 iput(inode);
@@ -2234,6 +2223,7 @@ retry:
                 inode->i_op = &ext4_fast_symlink_inode_operations;
                 memcpy((char*)&EXT4_I(inode)->i_data,symname,l);
                 inode->i_size = l-1;
+                EXT4_I(inode)->i_flags &= ~EXT4_EXTENTS_FL;
         }
         EXT4_I(inode)->i_disksize = inode->i_size;
         err = ext4_add_nondir(handle, dentry, inode);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 4fbba60816f4..9477a2bd6ff2 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -779,12 +779,11 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
                                      "No reserved GDT blocks, can't resize");
                         return -EPERM;
                 }
-                inode = iget(sb, EXT4_RESIZE_INO);
-                if (!inode || is_bad_inode(inode)) {
+                inode = ext4_iget(sb, EXT4_RESIZE_INO);
+                if (IS_ERR(inode)) {
                         ext4_warning(sb, __FUNCTION__,
                                      "Error opening resize inode");
-                        iput(inode);
-                        return -ENOENT;
+                        return PTR_ERR(inode);
                 }
         }
 
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 055a0cd0168e..13383ba18f1d 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -777,11 +777,10 @@ static struct inode *ext4_nfs_get_inode(struct super_block *sb,
          * Currently we don't know the generation for parent directory, so
          * a generation of 0 means "accept any"
          */
-        inode = iget(sb, ino);
-        if (inode == NULL)
-                return ERR_PTR(-ENOMEM);
-        if (is_bad_inode(inode) ||
-            (generation && inode->i_generation != generation)) {
+        inode = ext4_iget(sb, ino);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
+        if (generation && inode->i_generation != generation) {
                 iput(inode);
                 return ERR_PTR(-ESTALE);
         }
@@ -850,7 +849,6 @@ static struct quotactl_ops ext4_qctl_operations = {
 static const struct super_operations ext4_sops = {
         .alloc_inode    = ext4_alloc_inode,
         .destroy_inode  = ext4_destroy_inode,
-        .read_inode     = ext4_read_inode,
         .write_inode    = ext4_write_inode,
         .dirty_inode    = ext4_dirty_inode,
         .delete_inode   = ext4_delete_inode,
@@ -1458,7 +1456,7 @@ int ext4_group_desc_csum_verify(struct ext4_sb_info *sbi, __u32 block_group,
 }
 
 /* Called at mount-time, super-block is locked */
-static int ext4_check_descriptors (struct super_block * sb)
+static int ext4_check_descriptors(struct super_block *sb)
 {
         struct ext4_sb_info *sbi = EXT4_SB(sb);
         ext4_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
@@ -1466,8 +1464,6 @@ static int ext4_check_descriptors (struct super_block * sb)
         ext4_fsblk_t block_bitmap;
         ext4_fsblk_t inode_bitmap;
         ext4_fsblk_t inode_table;
-        struct ext4_group_desc * gdp = NULL;
-        int desc_block = 0;
         int flexbg_flag = 0;
         ext4_group_t i;
 
@@ -1476,17 +1472,15 @@ static int ext4_check_descriptors (struct super_block * sb)
 
         ext4_debug ("Checking group descriptors");
 
-        for (i = 0; i < sbi->s_groups_count; i++)
-        {
+        for (i = 0; i < sbi->s_groups_count; i++) {
+                struct ext4_group_desc *gdp = ext4_get_group_desc(sb, i, NULL);
+
                 if (i == sbi->s_groups_count - 1 || flexbg_flag)
                         last_block = ext4_blocks_count(sbi->s_es) - 1;
                 else
                         last_block = first_block +
                                 (EXT4_BLOCKS_PER_GROUP(sb) - 1);
 
-                if ((i % EXT4_DESC_PER_BLOCK(sb)) == 0)
-                        gdp = (struct ext4_group_desc *)
-                                        sbi->s_group_desc[desc_block++]->b_data;
                 block_bitmap = ext4_block_bitmap(sb, gdp);
                 if (block_bitmap < first_block || block_bitmap > last_block)
                 {
@@ -1524,8 +1518,6 @@ static int ext4_check_descriptors (struct super_block * sb)
                 }
                 if (!flexbg_flag)
                         first_block += EXT4_BLOCKS_PER_GROUP(sb);
-                gdp = (struct ext4_group_desc *)
-                        ((__u8 *)gdp + EXT4_DESC_SIZE(sb));
         }
 
         ext4_free_blocks_count_set(sbi->s_es, ext4_count_free_blocks(sb));
@@ -1811,6 +1803,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
         unsigned long journal_devnum = 0;
         unsigned long def_mount_opts;
         struct inode *root;
+        int ret = -EINVAL;
         int blocksize;
         int db_count;
         int i;
@@ -1926,6 +1919,17 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                 printk(KERN_WARNING
                        "EXT4-fs warning: feature flags set on rev 0 fs, "
                        "running e2fsck is recommended\n");
+
+        /*
+         * Since ext4 is still considered development code, we require
+         * that the TEST_FILESYS flag in s->flags be set.
+         */
+        if (!(le32_to_cpu(es->s_flags) & EXT2_FLAGS_TEST_FILESYS)) {
+                printk(KERN_WARNING "EXT4-fs: %s: not marked "
+                       "OK to use with test code.\n", sb->s_id);
+                goto failed_mount;
+        }
+
         /*
          * Check feature flags regardless of the revision level, since we
          * previously didn't change the revision level when setting the flags,
@@ -2243,19 +2247,24 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
          * so we can safely mount the rest of the filesystem now.
          */
 
-        root = iget(sb, EXT4_ROOT_INO);
-        sb->s_root = d_alloc_root(root);
-        if (!sb->s_root) {
+        root = ext4_iget(sb, EXT4_ROOT_INO);
+        if (IS_ERR(root)) {
                 printk(KERN_ERR "EXT4-fs: get root inode failed\n");
-                iput(root);
+                ret = PTR_ERR(root);
                 goto failed_mount4;
         }
         if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
-                dput(sb->s_root);
-                sb->s_root = NULL;
+                iput(root);
                 printk(KERN_ERR "EXT4-fs: corrupt root inode, run e2fsck\n");
                 goto failed_mount4;
         }
+        sb->s_root = d_alloc_root(root);
+        if (!sb->s_root) {
+                printk(KERN_ERR "EXT4-fs: get root dentry failed\n");
+                iput(root);
+                ret = -ENOMEM;
+                goto failed_mount4;
+        }
 
         ext4_setup_super (sb, es, sb->s_flags & MS_RDONLY);
 
@@ -2336,7 +2345,7 @@ out_fail:
         sb->s_fs_info = NULL;
         kfree(sbi);
         lock_kernel();
-        return -EINVAL;
+        return ret;
 }
 
 /*
@@ -2372,8 +2381,8 @@ static journal_t *ext4_get_journal(struct super_block *sb,
          * things happen if we iget() an unused inode, as the subsequent
          * iput() will try to delete it. */
 
-        journal_inode = iget(sb, journal_inum);
-        if (!journal_inode) {
+        journal_inode = ext4_iget(sb, journal_inum);
+        if (IS_ERR(journal_inode)) {
                 printk(KERN_ERR "EXT4-fs: no journal found.\n");
                 return NULL;
         }
@@ -2386,7 +2395,7 @@ static journal_t *ext4_get_journal(struct super_block *sb,
 
         jbd_debug(2, "Journal inode found at %p: %Ld bytes\n",
                   journal_inode, journal_inode->i_size);
-        if (is_bad_inode(journal_inode) || !S_ISREG(journal_inode->i_mode)) {
+        if (!S_ISREG(journal_inode->i_mode)) {
                 printk(KERN_ERR "EXT4-fs: invalid journal inode.\n");
                 iput(journal_inode);
                 return NULL;
@@ -3149,16 +3158,16 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
         if (err)
                 return err;
         /* Quotafile not on the same filesystem? */
-        if (nd.mnt->mnt_sb != sb) {
-                path_release(&nd);
+        if (nd.path.mnt->mnt_sb != sb) {
+                path_put(&nd.path);
                 return -EXDEV;
         }
         /* Quotafile not of fs root? */
-        if (nd.dentry->d_parent->d_inode != sb->s_root->d_inode)
+        if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
                 printk(KERN_WARNING
                         "EXT4-fs: Quota file not on filesystem root. "
                         "Journalled quota will not work.\n");
-        path_release(&nd);
+        path_put(&nd.path);
         return vfs_quota_on(sb, type, format_id, path);
 }
 
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 69a83b59dce8..c614175876e0 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -155,6 +155,42 @@ out:
         return err;
 }
 
+static int check_mode(const struct msdos_sb_info *sbi, mode_t mode)
+{
+        mode_t req = mode & ~S_IFMT;
+
+        /*
+         * Of the r and x bits, all (subject to umask) must be present. Of the
+         * w bits, either all (subject to umask) or none must be present.
+         */
+
+        if (S_ISREG(mode)) {
+                req &= ~sbi->options.fs_fmask;
+
+                if ((req & (S_IRUGO | S_IXUGO)) !=
+                    ((S_IRUGO | S_IXUGO) & ~sbi->options.fs_fmask))
+                        return -EPERM;
+
+                if ((req & S_IWUGO) != 0 &&
+                    (req & S_IWUGO) != (S_IWUGO & ~sbi->options.fs_fmask))
+                        return -EPERM;
+        } else if (S_ISDIR(mode)) {
+                req &= ~sbi->options.fs_dmask;
+
+                if ((req & (S_IRUGO | S_IXUGO)) !=
+                    ((S_IRUGO | S_IXUGO) & ~sbi->options.fs_dmask))
+                        return -EPERM;
+
+                if ((req & S_IWUGO) != 0 &&
+                    (req & S_IWUGO) != (S_IWUGO & ~sbi->options.fs_dmask))
+                        return -EPERM;
+        } else {
+                return -EPERM;
+        }
+
+        return 0;
+}
+
 int fat_notify_change(struct dentry *dentry, struct iattr *attr)
 {
         struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb);
@@ -186,9 +222,7 @@ int fat_notify_change(struct dentry *dentry, struct iattr *attr)
         if (((attr->ia_valid & ATTR_UID) &&
              (attr->ia_uid != sbi->options.fs_uid)) ||
             ((attr->ia_valid & ATTR_GID) &&
-             (attr->ia_gid != sbi->options.fs_gid)) ||
-            ((attr->ia_valid & ATTR_MODE) &&
-             (attr->ia_mode & ~MSDOS_VALID_MODE)))
+             (attr->ia_gid != sbi->options.fs_gid)))
                 error = -EPERM;
 
         if (error) {
@@ -196,6 +230,13 @@ int fat_notify_change(struct dentry *dentry, struct iattr *attr)
                         error = 0;
                 goto out;
         }
+
+        if (attr->ia_valid & ATTR_MODE) {
+                error = check_mode(sbi, attr->ia_mode);
+                if (error != 0 && !sbi->options.quiet)
+                        goto out;
+        }
+
         error = inode_setattr(inode, attr);
         if (error)
                 goto out;
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 920a576e1c25..53f3cf62b7c1 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -634,8 +634,6 @@ static const struct super_operations fat_sops = {
         .clear_inode    = fat_clear_inode,
         .remount_fs     = fat_remount,
 
-        .read_inode     = make_bad_inode,
-
         .show_options   = fat_show_options,
 };
 
@@ -663,8 +661,8 @@ static struct dentry *fat_fh_to_dentry(struct super_block *sb,
         if (fh_len < 5 || fh_type != 3)
                 return NULL;
 
-        inode = iget(sb, fh[0]);
-        if (!inode || is_bad_inode(inode) || inode->i_generation != fh[1]) {
+        inode = ilookup(sb, fh[0]);
+        if (!inode || inode->i_generation != fh[1]) {
                 if (inode)
                         iput(inode);
                 inode = NULL;
@@ -760,7 +758,7 @@ static struct dentry *fat_get_parent(struct dentry *child)
         inode = fat_build_inode(child->d_sb, de, i_pos);
         brelse(bh);
         if (IS_ERR(inode)) {
-                parent = ERR_PTR(PTR_ERR(inode));
+                parent = ERR_CAST(inode);
                 goto out;
         }
         parent = d_alloc_anon(inode);
@@ -839,6 +837,8 @@ static int fat_show_options(struct seq_file *m, struct vfsmount *mnt)
                 if (!opts->numtail)
                         seq_puts(m, ",nonumtail");
         }
+        if (sbi->options.flush)
+                seq_puts(m, ",flush");
 
         return 0;
 }
@@ -1295,10 +1295,8 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 
                 fsinfo = (struct fat_boot_fsinfo *)fsinfo_bh->b_data;
                 if (!IS_FSINFO(fsinfo)) {
-                        printk(KERN_WARNING
-                               "FAT: Did not find valid FSINFO signature.\n"
-                               "     Found signature1 0x%08x signature2 0x%08x"
-                               " (sector = %lu)\n",
+                        printk(KERN_WARNING "FAT: Invalid FSINFO signature: "
+                               "0x%08x, 0x%08x (sector = %lu)\n",
                                le32_to_cpu(fsinfo->signature1),
                                le32_to_cpu(fsinfo->signature2),
                                sbi->fsinfo_sector);
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 308f2b6b5026..61f23511eacf 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -55,9 +55,8 @@ void fat_clusters_flush(struct super_block *sb)
         fsinfo = (struct fat_boot_fsinfo *)bh->b_data;
         /* Sanity check */
         if (!IS_FSINFO(fsinfo)) {
-                printk(KERN_ERR "FAT: Did not find valid FSINFO signature.\n"
-                       "     Found signature1 0x%08x signature2 0x%08x"
-                       " (sector = %lu)\n",
+                printk(KERN_ERR "FAT: Invalid FSINFO signature: "
+                       "0x%08x, 0x%08x (sector = %lu)\n",
                        le32_to_cpu(fsinfo->signature1),
                        le32_to_cpu(fsinfo->signature2),
                        sbi->fsinfo_sector);
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 8685263ccc4a..e632da761fc1 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -24,7 +24,7 @@
 #include <asm/siginfo.h>
 #include <asm/uaccess.h>
 
-void fastcall set_close_on_exec(unsigned int fd, int flag)
+void set_close_on_exec(unsigned int fd, int flag)
 {
         struct files_struct *files = current->files;
         struct fdtable *fdt;
@@ -309,7 +309,7 @@ pid_t f_getown(struct file *filp)
 {
         pid_t pid;
         read_lock(&filp->f_owner.lock);
-        pid = pid_nr_ns(filp->f_owner.pid, current->nsproxy->pid_ns);
+        pid = pid_vnr(filp->f_owner.pid);
         if (filp->f_owner.pid_type == PIDTYPE_PGID)
                 pid = -pid;
         read_unlock(&filp->f_owner.lock);
diff --git a/fs/file.c b/fs/file.c
index c5575de01113..5110acb1c9ef 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -24,6 +24,8 @@ struct fdtable_defer {
         struct fdtable *next;
 };
 
+int sysctl_nr_open __read_mostly = 1024*1024;
+
 /*
  * We use this list to defer free fdtables that have vmalloced
  * sets/arrays. By keeping a per-cpu list, we avoid having to embed
@@ -147,8 +149,8 @@ static struct fdtable * alloc_fdtable(unsigned int nr)
         nr /= (1024 / sizeof(struct file *));
         nr = roundup_pow_of_two(nr + 1);
         nr *= (1024 / sizeof(struct file *));
-        if (nr > NR_OPEN)
-                nr = NR_OPEN;
+        if (nr > sysctl_nr_open)
+                nr = sysctl_nr_open;
 
         fdt = kmalloc(sizeof(struct fdtable), GFP_KERNEL);
         if (!fdt)
@@ -233,7 +235,7 @@ int expand_files(struct files_struct *files, int nr)
         if (nr < fdt->max_fds)
                 return 0;
         /* Can we expand? */
-        if (nr >= NR_OPEN)
+        if (nr >= sysctl_nr_open)
                 return -EMFILE;
 
         /* All good, so we try */
diff --git a/fs/file_table.c b/fs/file_table.c
index 664e3f2309b8..6d27befe2d48 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -197,7 +197,7 @@ int init_file(struct file *file, struct vfsmount *mnt, struct dentry *dentry,
 }
 EXPORT_SYMBOL(init_file);
 
-void fastcall fput(struct file *file)
+void fput(struct file *file)
 {
         if (atomic_dec_and_test(&file->f_count))
                 __fput(file);
@@ -208,7 +208,7 @@ EXPORT_SYMBOL(fput);
 /* __fput is called from task context when aio completion releases the last
  * last use of a struct file *.  Do not use otherwise.
  */
-void fastcall __fput(struct file *file)
+void __fput(struct file *file)
 {
         struct dentry *dentry = file->f_path.dentry;
         struct vfsmount *mnt = file->f_path.mnt;
@@ -241,7 +241,7 @@ void fastcall __fput(struct file *file)
         mntput(mnt);
 }
 
-struct file fastcall *fget(unsigned int fd)
+struct file *fget(unsigned int fd)
 {
         struct file *file;
         struct files_struct *files = current->files;
@@ -269,7 +269,7 @@ EXPORT_SYMBOL(fget);
  * and a flag is returned to be passed to the corresponding fput_light().
  * There must not be a cloning between an fget_light/fput_light pair.
  */
-struct file fastcall *fget_light(unsigned int fd, int *fput_needed)
+struct file *fget_light(unsigned int fd, int *fput_needed)
 {
         struct file *file;
         struct files_struct *files = current->files;
diff --git a/fs/freevxfs/vxfs_extern.h b/fs/freevxfs/vxfs_extern.h
index 91ccee8723f7..2b46064f66b2 100644
--- a/fs/freevxfs/vxfs_extern.h
+++ b/fs/freevxfs/vxfs_extern.h
@@ -58,7 +58,7 @@ extern struct inode *		vxfs_get_fake_inode(struct super_block *,
 extern void                     vxfs_put_fake_inode(struct inode *);
 extern struct vxfs_inode_info * vxfs_blkiget(struct super_block *, u_long, ino_t);
 extern struct vxfs_inode_info * vxfs_stiget(struct super_block *, ino_t);
-extern void                     vxfs_read_inode(struct inode *);
+extern struct inode *           vxfs_iget(struct super_block *, ino_t);
 extern void                     vxfs_clear_inode(struct inode *);
 
 /* vxfs_lookup.c */
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index d1f7c5b5b3c3..ad88d2364bc2 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -129,7 +129,7 @@ fail:
  * Description:
  *  Search the for inode number @ino in the filesystem
  *  described by @sbp.  Use the specified inode table (@ilistp).
- *  Returns the matching VxFS inode on success, else a NULL pointer.
+ *  Returns the matching VxFS inode on success, else an error code.
  */
 static struct vxfs_inode_info *
 __vxfs_iget(ino_t ino, struct inode *ilistp)
@@ -157,12 +157,12 @@ __vxfs_iget(ino_t ino, struct inode *ilistp)
         }
 
         printk(KERN_WARNING "vxfs: error on page %p\n", pp);
-        return NULL;
+        return ERR_CAST(pp);
 
 fail:
         printk(KERN_WARNING "vxfs: unable to read inode %ld\n", (unsigned long)ino);
         vxfs_put_page(pp);
-        return NULL;
+        return ERR_PTR(-ENOMEM);
 }
 
 /**
@@ -178,7 +178,10 @@ fail:
 struct vxfs_inode_info *
 vxfs_stiget(struct super_block *sbp, ino_t ino)
 {
-        return __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_stilist);
+        struct vxfs_inode_info *vip;
+
+        vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_stilist);
+        return IS_ERR(vip) ? NULL : vip;
 }
 
 /**
@@ -282,23 +285,32 @@ vxfs_put_fake_inode(struct inode *ip)
 }
 
 /**
- * vxfs_read_inode - fill in inode information
- * @ip:         inode pointer to fill
+ * vxfs_iget - get an inode
+ * @sbp:        the superblock to get the inode for
+ * @ino:        the number of the inode to get
  *
  * Description:
- *  vxfs_read_inode reads the disk inode for @ip and fills
- *  in all relevant fields in @ip.
+ *  vxfs_read_inode creates an inode, reads the disk inode for @ino and fills
+ *  in all relevant fields in the new inode.
  */
-void
-vxfs_read_inode(struct inode *ip)
+struct inode *
+vxfs_iget(struct super_block *sbp, ino_t ino)
 {
-        struct super_block              *sbp = ip->i_sb;
         struct vxfs_inode_info          *vip;
         const struct address_space_operations   *aops;
-        ino_t                           ino = ip->i_ino;
-
-        if (!(vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist)))
-                return;
+        struct inode *ip;
+
+        ip = iget_locked(sbp, ino);
+        if (!ip)
+                return ERR_PTR(-ENOMEM);
+        if (!(ip->i_state & I_NEW))
+                return ip;
+
+        vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist);
+        if (IS_ERR(vip)) {
+                iget_failed(ip);
+                return ERR_CAST(vip);
+        }
 
         vxfs_iinit(ip, vip);
 
@@ -323,7 +335,8 @@ vxfs_read_inode(struct inode *ip)
         } else
                 init_special_inode(ip, ip->i_mode, old_decode_dev(vip->vii_rdev));
 
-        return;
+        unlock_new_inode(ip);
+        return ip;
 }
 
 /**
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index bf86e5444ea6..aee049cb9f84 100644
--- a/fs/freevxfs/vxfs_lookup.c
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -213,10 +213,10 @@ vxfs_lookup(struct inode *dip, struct dentry *dp, struct nameidata *nd)
         lock_kernel();
         ino = vxfs_inode_by_name(dip, dp);
         if (ino) {
-                ip = iget(dip->i_sb, ino);
-                if (!ip) {
+                ip = vxfs_iget(dip->i_sb, ino);
+                if (IS_ERR(ip)) {
                         unlock_kernel();
-                        return ERR_PTR(-EACCES);
+                        return ERR_CAST(ip);
                 }
         }
         unlock_kernel();
diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
index 4f95572d2722..1dacda831577 100644
--- a/fs/freevxfs/vxfs_super.c
+++ b/fs/freevxfs/vxfs_super.c
@@ -60,7 +60,6 @@ static int		vxfs_statfs(struct dentry *, struct kstatfs *);
 static int              vxfs_remount(struct super_block *, int *, char *);
 
 static const struct super_operations vxfs_super_ops = {
-        .read_inode =           vxfs_read_inode,
         .clear_inode =          vxfs_clear_inode,
         .put_super =            vxfs_put_super,
         .statfs =               vxfs_statfs,
@@ -153,6 +152,7 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
         struct buffer_head      *bp = NULL;
         u_long                  bsize;
         struct inode *root;
+        int ret = -EINVAL;
 
         sbp->s_flags |= MS_RDONLY;
 
@@ -219,7 +219,11 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
         }
 
         sbp->s_op = &vxfs_super_ops;
-        root = iget(sbp, VXFS_ROOT_INO);
+        root = vxfs_iget(sbp, VXFS_ROOT_INO);
+        if (IS_ERR(root)) {
+                ret = PTR_ERR(root);
+                goto out;
+        }
         sbp->s_root = d_alloc_root(root);
         if (!sbp->s_root) {
                 iput(root);
@@ -236,7 +240,7 @@ out_free_ilist:
 out:
         brelse(bp);
         kfree(infp);
-        return -EINVAL;
+        return ret;
 }
 
 /*
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 300324bd563c..c0076077d338 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -284,7 +284,17 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
                                  * soon as the queue becomes uncongested.
                                  */
                                 inode->i_state |= I_DIRTY_PAGES;
-                                requeue_io(inode);
+                                if (wbc->nr_to_write <= 0) {
+                                        /*
+                                         * slice used up: queue for next turn
+                                         */
+                                        requeue_io(inode);
+                                } else {
+                                        /*
+                                         * somehow blocked: retry later
+                                         */
+                                        redirty_tail(inode);
+                                }
                         } else {
                                 /*
                                  * Otherwise fully redirty the inode so that
@@ -334,9 +344,6 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
                 WARN_ON(inode->i_state & I_WILL_FREE);
 
         if ((wbc->sync_mode != WB_SYNC_ALL) && (inode->i_state & I_SYNC)) {
-                struct address_space *mapping = inode->i_mapping;
-                int ret;
-
                 /*
                  * We're skipping this inode because it's locked, and we're not
                  * doing writeback-for-data-integrity.  Move it to s_more_io so
@@ -345,15 +352,7 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
                  * completed a full scan of s_io.
                  */
                 requeue_io(inode);
-
-                /*
-                 * Even if we don't actually write the inode itself here,
-                 * we can at least start some of the data writeout..
-                 */
-                spin_unlock(&inode_lock);
-                ret = do_writepages(mapping, wbc);
-                spin_lock(&inode_lock);
-                return ret;
+                return 0;
         }
 
         /*
@@ -479,8 +478,12 @@ sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc)
                 iput(inode);
                 cond_resched();
                 spin_lock(&inode_lock);
-                if (wbc->nr_to_write <= 0)
+                if (wbc->nr_to_write <= 0) {
+                        wbc->more_io = 1;
                         break;
+                }
+                if (!list_empty(&sb->s_more_io))
+                        wbc->more_io = 1;
         }
         return;         /* Leave any unwritten inodes on s_io */
 }
@@ -512,8 +515,7 @@ writeback_inodes(struct writeback_control *wbc)
         might_sleep();
         spin_lock(&sb_lock);
 restart:
-        sb = sb_entry(super_blocks.prev);
-        for (; sb != sb_entry(&super_blocks); sb = sb_entry(sb->s_list.prev)) {
+        list_for_each_entry_reverse(sb, &super_blocks, s_list) {
                 if (sb_has_dirty_inodes(sb)) {
                         /* we're making our own get_super here */
                         sb->s_count++;
@@ -578,10 +580,8 @@ static void set_sb_syncing(int val)
 {
         struct super_block *sb;
         spin_lock(&sb_lock);
-        sb = sb_entry(super_blocks.prev);
-        for (; sb != sb_entry(&super_blocks); sb = sb_entry(sb->s_list.prev)) {
+        list_for_each_entry_reverse(sb, &super_blocks, s_list)
                 sb->s_syncing = val;
-        }
         spin_unlock(&sb_lock);
 }
 
@@ -655,7 +655,7 @@ int write_inode_now(struct inode *inode, int sync)
         int ret;
         struct writeback_control wbc = {
                 .nr_to_write = LONG_MAX,
-                .sync_mode = WB_SYNC_ALL,
+                .sync_mode = sync ? WB_SYNC_ALL : WB_SYNC_NONE,
                 .range_start = 0,
                 .range_end = LLONG_MAX,
         };
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index db534bcde45f..af639807524e 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -201,6 +201,55 @@ void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)
         }
 }
 
+static unsigned len_args(unsigned numargs, struct fuse_arg *args)
+{
+        unsigned nbytes = 0;
+        unsigned i;
+
+        for (i = 0; i < numargs; i++)
+                nbytes += args[i].size;
+
+        return nbytes;
+}
+
+static u64 fuse_get_unique(struct fuse_conn *fc)
+{
+        fc->reqctr++;
+        /* zero is special */
+        if (fc->reqctr == 0)
+                fc->reqctr = 1;
+
+        return fc->reqctr;
+}
+
+static void queue_request(struct fuse_conn *fc, struct fuse_req *req)
+{
+        req->in.h.unique = fuse_get_unique(fc);
+        req->in.h.len = sizeof(struct fuse_in_header) +
+                len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
+        list_add_tail(&req->list, &fc->pending);
+        req->state = FUSE_REQ_PENDING;
+        if (!req->waiting) {
+                req->waiting = 1;
+                atomic_inc(&fc->num_waiting);
+        }
+        wake_up(&fc->waitq);
+        kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+}
+
+static void flush_bg_queue(struct fuse_conn *fc)
+{
+        while (fc->active_background < FUSE_MAX_BACKGROUND &&
+               !list_empty(&fc->bg_queue)) {
+                struct fuse_req *req;
+
+                req = list_entry(fc->bg_queue.next, struct fuse_req, list);
+                list_del(&req->list);
+                fc->active_background++;
+                queue_request(fc, req);
+        }
+}
+
 /*
  * This function is called when a request is finished.  Either a reply
  * has arrived or it was aborted (and not yet sent) or some error
@@ -229,6 +278,8 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
                         clear_bdi_congested(&fc->bdi, WRITE);
                 }
                 fc->num_background--;
+                fc->active_background--;
+                flush_bg_queue(fc);
         }
         spin_unlock(&fc->lock);
         wake_up(&req->waitq);
@@ -320,42 +371,6 @@ static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
         }
 }
 
-static unsigned len_args(unsigned numargs, struct fuse_arg *args)
-{
-        unsigned nbytes = 0;
-        unsigned i;
-
-        for (i = 0; i < numargs; i++)
-                nbytes += args[i].size;
-
-        return nbytes;
-}
-
-static u64 fuse_get_unique(struct fuse_conn *fc)
- {
-        fc->reqctr++;
-        /* zero is special */
-        if (fc->reqctr == 0)
-                fc->reqctr = 1;
-
-        return fc->reqctr;
-}
-
-static void queue_request(struct fuse_conn *fc, struct fuse_req *req)
-{
-        req->in.h.unique = fuse_get_unique(fc);
-        req->in.h.len = sizeof(struct fuse_in_header) +
-                len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
-        list_add_tail(&req->list, &fc->pending);
-        req->state = FUSE_REQ_PENDING;
-        if (!req->waiting) {
-                req->waiting = 1;
-                atomic_inc(&fc->num_waiting);
-        }
-        wake_up(&fc->waitq);
-        kill_fasync(&fc->fasync, SIGIO, POLL_IN);
-}
-
 void request_send(struct fuse_conn *fc, struct fuse_req *req)
 {
         req->isreply = 1;
@@ -375,20 +390,26 @@ void request_send(struct fuse_conn *fc, struct fuse_req *req)
         spin_unlock(&fc->lock);
 }
 
+static void request_send_nowait_locked(struct fuse_conn *fc,
+                                       struct fuse_req *req)
+{
+        req->background = 1;
+        fc->num_background++;
+        if (fc->num_background == FUSE_MAX_BACKGROUND)
+                fc->blocked = 1;
+        if (fc->num_background == FUSE_CONGESTION_THRESHOLD) {
+                set_bdi_congested(&fc->bdi, READ);
+                set_bdi_congested(&fc->bdi, WRITE);
+        }
+        list_add_tail(&req->list, &fc->bg_queue);
+        flush_bg_queue(fc);
+}
+
 static void request_send_nowait(struct fuse_conn *fc, struct fuse_req *req)
 {
         spin_lock(&fc->lock);
         if (fc->connected) {
-                req->background = 1;
-                fc->num_background++;
-                if (fc->num_background == FUSE_MAX_BACKGROUND)
-                        fc->blocked = 1;
-                if (fc->num_background == FUSE_CONGESTION_THRESHOLD) {
-                        set_bdi_congested(&fc->bdi, READ);
-                        set_bdi_congested(&fc->bdi, WRITE);
-                }
-
-                queue_request(fc, req);
+                request_send_nowait_locked(fc, req);
                 spin_unlock(&fc->lock);
         } else {
                 req->out.h.error = -ENOTCONN;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 80d2f5292cf9..7fb514b6d852 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -269,12 +269,12 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 
         req = fuse_get_req(fc);
         if (IS_ERR(req))
-                return ERR_PTR(PTR_ERR(req));
+                return ERR_CAST(req);
 
         forget_req = fuse_get_req(fc);
         if (IS_ERR(forget_req)) {
                 fuse_put_request(fc, req);
-                return ERR_PTR(PTR_ERR(forget_req));
+                return ERR_CAST(forget_req);
         }
 
         attr_version = fuse_get_attr_version(fc);
@@ -416,6 +416,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
         fuse_put_request(fc, forget_req);
         d_instantiate(entry, inode);
         fuse_change_entry_timeout(entry, &outentry);
+        fuse_invalidate_attr(dir);
         file = lookup_instantiate_filp(nd, entry, generic_file_open);
         if (IS_ERR(file)) {
                 ff->fh = outopen.fh;
@@ -1005,7 +1006,7 @@ static char *read_link(struct dentry *dentry)
         char *link;
 
         if (IS_ERR(req))
-                return ERR_PTR(PTR_ERR(req));
+                return ERR_CAST(req);
 
         link = (char *) __get_free_page(GFP_KERNEL);
         if (!link) {
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index bb05d227cf30..676b0bc8a86d 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -77,8 +77,8 @@ static struct fuse_file *fuse_file_get(struct fuse_file *ff)
 
 static void fuse_release_end(struct fuse_conn *fc, struct fuse_req *req)
 {
-        dput(req->dentry);
-        mntput(req->vfsmount);
+        dput(req->misc.release.dentry);
+        mntput(req->misc.release.vfsmount);
         fuse_put_request(fc, req);
 }
 
@@ -86,7 +86,8 @@ static void fuse_file_put(struct fuse_file *ff)
 {
         if (atomic_dec_and_test(&ff->count)) {
                 struct fuse_req *req = ff->reserved_req;
-                struct fuse_conn *fc = get_fuse_conn(req->dentry->d_inode);
+                struct inode *inode = req->misc.release.dentry->d_inode;
+                struct fuse_conn *fc = get_fuse_conn(inode);
                 req->end = fuse_release_end;
                 request_send_background(fc, req);
                 kfree(ff);
@@ -137,7 +138,7 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir)
 void fuse_release_fill(struct fuse_file *ff, u64 nodeid, int flags, int opcode)
 {
         struct fuse_req *req = ff->reserved_req;
-        struct fuse_release_in *inarg = &req->misc.release_in;
+        struct fuse_release_in *inarg = &req->misc.release.in;
 
         inarg->fh = ff->fh;
         inarg->flags = flags;
@@ -153,13 +154,14 @@ int fuse_release_common(struct inode *inode, struct file *file, int isdir)
         struct fuse_file *ff = file->private_data;
         if (ff) {
                 struct fuse_conn *fc = get_fuse_conn(inode);
+                struct fuse_req *req = ff->reserved_req;
 
                 fuse_release_fill(ff, get_node_id(inode), file->f_flags,
                                   isdir ? FUSE_RELEASEDIR : FUSE_RELEASE);
 
                 /* Hold vfsmount and dentry until release is finished */
-                ff->reserved_req->vfsmount = mntget(file->f_path.mnt);
-                ff->reserved_req->dentry = dget(file->f_path.dentry);
+                req->misc.release.vfsmount = mntget(file->f_path.mnt);
+                req->misc.release.dentry = dget(file->f_path.dentry);
 
                 spin_lock(&fc->lock);
                 list_del(&ff->write_entry);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 3ab8a3048e8b..67aaf6ee38ea 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -215,7 +215,11 @@ struct fuse_req {
         /** Data for asynchronous requests */
         union {
                 struct fuse_forget_in forget_in;
-                struct fuse_release_in release_in;
+                struct {
+                        struct fuse_release_in in;
+                        struct vfsmount *vfsmount;
+                        struct dentry *dentry;
+                } release;
                 struct fuse_init_in init_in;
                 struct fuse_init_out init_out;
                 struct fuse_read_in read_in;
@@ -238,12 +242,6 @@ struct fuse_req {
         /** File used in the request (or NULL) */
         struct fuse_file *ff;
 
-        /** vfsmount used in release */
-        struct vfsmount *vfsmount;
-
-        /** dentry used in release */
-        struct dentry *dentry;
-
         /** Request completion callback */
         void (*end)(struct fuse_conn *, struct fuse_req *);
 
@@ -298,6 +296,12 @@ struct fuse_conn {
         /** Number of requests currently in the background */
         unsigned num_background;
 
+        /** Number of background requests currently queued for userspace */
+        unsigned active_background;
+
+        /** The list of background requests set aside for later queuing */
+        struct list_head bg_queue;
+
         /** Pending interrupts */
         struct list_head interrupts;
 
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index e5e80d1a4687..033f7bdd47e8 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -29,6 +29,8 @@ DEFINE_MUTEX(fuse_mutex);
 
 #define FUSE_SUPER_MAGIC 0x65735546
 
+#define FUSE_DEFAULT_BLKSIZE 512
+
 struct fuse_mount_data {
         int fd;
         unsigned rootmode;
@@ -76,11 +78,6 @@ static void fuse_destroy_inode(struct inode *inode)
         kmem_cache_free(fuse_inode_cachep, inode);
 }
 
-static void fuse_read_inode(struct inode *inode)
-{
-        /* No op */
-}
-
 void fuse_send_forget(struct fuse_conn *fc, struct fuse_req *req,
                       unsigned long nodeid, u64 nlookup)
 {
@@ -360,7 +357,7 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d, int is_bdev)
         char *p;
         memset(d, 0, sizeof(struct fuse_mount_data));
         d->max_read = ~0;
-        d->blksize = 512;
+        d->blksize = FUSE_DEFAULT_BLKSIZE;
 
         while ((p = strsep(&opt, ",")) != NULL) {
                 int token;
@@ -445,6 +442,9 @@ static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
                 seq_puts(m, ",allow_other");
         if (fc->max_read != ~0)
                 seq_printf(m, ",max_read=%u", fc->max_read);
+        if (mnt->mnt_sb->s_bdev &&
+            mnt->mnt_sb->s_blocksize != FUSE_DEFAULT_BLKSIZE)
+                seq_printf(m, ",blksize=%lu", mnt->mnt_sb->s_blocksize);
         return 0;
 }
 
@@ -465,6 +465,7 @@ static struct fuse_conn *new_conn(void)
                 INIT_LIST_HEAD(&fc->processing);
                 INIT_LIST_HEAD(&fc->io);
                 INIT_LIST_HEAD(&fc->interrupts);
+                INIT_LIST_HEAD(&fc->bg_queue);
                 atomic_set(&fc->num_waiting, 0);
                 fc->bdi.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
                 fc->bdi.unplug_io_fn = default_unplug_io_fn;
@@ -514,7 +515,6 @@ static struct inode *get_root_inode(struct super_block *sb, unsigned mode)
 static const struct super_operations fuse_super_operations = {
         .alloc_inode    = fuse_alloc_inode,
         .destroy_inode  = fuse_destroy_inode,
-        .read_inode     = fuse_read_inode,
         .clear_inode    = fuse_clear_inode,
         .drop_inode     = generic_delete_inode,
         .remount_fs     = fuse_remount_fs,
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index e4effc47abfc..e9456ebd3bb6 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -932,7 +932,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping)
         if (!gfs2_is_writeback(ip))
                 gfs2_trans_add_bh(ip->i_gl, bh, 0);
 
-        zero_user_page(page, offset, length, KM_USER0);
+        zero_user(page, offset, length);
 
 unlock:
         unlock_page(page);
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 57e2ed932adc..c34709512b19 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1498,7 +1498,7 @@ struct inode *gfs2_dir_search(struct inode *dir, const struct qstr *name)
         dent = gfs2_dirent_search(dir, name, gfs2_dirent_find, &bh);
         if (dent) {
                 if (IS_ERR(dent))
-                        return ERR_PTR(PTR_ERR(dent));
+                        return ERR_CAST(dent);
                 inode = gfs2_inode_lookup(dir->i_sb, 
                                 be16_to_cpu(dent->de_type),
                                 be64_to_cpu(dent->de_inum.no_addr),
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 80e09c50590a..7175a4d06435 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -334,7 +334,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
         gl->gl_state = LM_ST_UNLOCKED;
         gl->gl_demote_state = LM_ST_EXCLUSIVE;
         gl->gl_hash = hash;
-        gl->gl_owner_pid = 0;
+        gl->gl_owner_pid = NULL;
         gl->gl_ip = 0;
         gl->gl_ops = glops;
         gl->gl_req_gh = NULL;
@@ -399,7 +399,7 @@ void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags,
         INIT_LIST_HEAD(&gh->gh_list);
         gh->gh_gl = gl;
         gh->gh_ip = (unsigned long)__builtin_return_address(0);
-        gh->gh_owner_pid = current->pid;
+        gh->gh_owner_pid = get_pid(task_pid(current));
         gh->gh_state = state;
         gh->gh_flags = flags;
         gh->gh_error = 0;
@@ -433,6 +433,7 @@ void gfs2_holder_reinit(unsigned int state, unsigned flags, struct gfs2_holder *
 
 void gfs2_holder_uninit(struct gfs2_holder *gh)
 {
+        put_pid(gh->gh_owner_pid);
         gfs2_glock_put(gh->gh_gl);
         gh->gh_gl = NULL;
         gh->gh_ip = 0;
@@ -631,7 +632,7 @@ static void gfs2_glmutex_lock(struct gfs2_glock *gl)
                 wait_on_holder(&gh);
                 gfs2_holder_uninit(&gh);
         } else {
-                gl->gl_owner_pid = current->pid;
+                gl->gl_owner_pid = get_pid(task_pid(current));
                 gl->gl_ip = (unsigned long)__builtin_return_address(0);
                 spin_unlock(&gl->gl_spin);
         }
@@ -652,7 +653,7 @@ static int gfs2_glmutex_trylock(struct gfs2_glock *gl)
         if (test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
                 acquired = 0;
         } else {
-                gl->gl_owner_pid = current->pid;
+                gl->gl_owner_pid = get_pid(task_pid(current));
                 gl->gl_ip = (unsigned long)__builtin_return_address(0);
         }
         spin_unlock(&gl->gl_spin);
@@ -668,12 +669,17 @@ static int gfs2_glmutex_trylock(struct gfs2_glock *gl)
 
 static void gfs2_glmutex_unlock(struct gfs2_glock *gl)
 {
+        struct pid *pid;
+
         spin_lock(&gl->gl_spin);
         clear_bit(GLF_LOCK, &gl->gl_flags);
-        gl->gl_owner_pid = 0;
+        pid = gl->gl_owner_pid;
+        gl->gl_owner_pid = NULL;
         gl->gl_ip = 0;
         run_queue(gl);
         spin_unlock(&gl->gl_spin);
+
+        put_pid(pid);
 }
 
 /**
@@ -1045,7 +1051,7 @@ static int glock_wait_internal(struct gfs2_holder *gh)
 }
 
 static inline struct gfs2_holder *
-find_holder_by_owner(struct list_head *head, pid_t pid)
+find_holder_by_owner(struct list_head *head, struct pid *pid)
 {
         struct gfs2_holder *gh;
 
@@ -1082,7 +1088,7 @@ static void add_to_queue(struct gfs2_holder *gh)
         struct gfs2_glock *gl = gh->gh_gl;
         struct gfs2_holder *existing;
 
-        BUG_ON(!gh->gh_owner_pid);
+        BUG_ON(gh->gh_owner_pid == NULL);
         if (test_and_set_bit(HIF_WAIT, &gh->gh_iflags))
                 BUG();
 
@@ -1092,12 +1098,14 @@ static void add_to_queue(struct gfs2_holder *gh)
                 if (existing) {
                         print_symbol(KERN_WARNING "original: %s\n", 
                                      existing->gh_ip);
-                        printk(KERN_INFO "pid : %d\n", existing->gh_owner_pid);
+                        printk(KERN_INFO "pid : %d\n",
+                                        pid_nr(existing->gh_owner_pid));
                         printk(KERN_INFO "lock type : %d lock state : %d\n",
                                existing->gh_gl->gl_name.ln_type, 
                                existing->gh_gl->gl_state);
                         print_symbol(KERN_WARNING "new: %s\n", gh->gh_ip);
-                        printk(KERN_INFO "pid : %d\n", gh->gh_owner_pid);
+                        printk(KERN_INFO "pid : %d\n",
+                                        pid_nr(gh->gh_owner_pid));
                         printk(KERN_INFO "lock type : %d lock state : %d\n",
                                gl->gl_name.ln_type, gl->gl_state);
                         BUG();
@@ -1798,8 +1806,9 @@ static int dump_holder(struct glock_iter *gi, char *str,
 
         print_dbg(gi, "  %s\n", str);
         if (gh->gh_owner_pid) {
-                print_dbg(gi, "    owner = %ld ", (long)gh->gh_owner_pid);
-                gh_owner = find_task_by_pid(gh->gh_owner_pid);
+                print_dbg(gi, "    owner = %ld ",
+                                (long)pid_nr(gh->gh_owner_pid));
+                gh_owner = pid_task(gh->gh_owner_pid, PIDTYPE_PID);
                 if (gh_owner)
                         print_dbg(gi, "(%s)\n", gh_owner->comm);
                 else
@@ -1877,13 +1886,13 @@ static int dump_glock(struct glock_iter *gi, struct gfs2_glock *gl)
         print_dbg(gi, "  gl_ref = %d\n", atomic_read(&gl->gl_ref));
         print_dbg(gi, "  gl_state = %u\n", gl->gl_state);
         if (gl->gl_owner_pid) {
-                gl_owner = find_task_by_pid(gl->gl_owner_pid);
+                gl_owner = pid_task(gl->gl_owner_pid, PIDTYPE_PID);
                 if (gl_owner)
                         print_dbg(gi, "  gl_owner = pid %d (%s)\n",
-                                  gl->gl_owner_pid, gl_owner->comm);
+                                  pid_nr(gl->gl_owner_pid), gl_owner->comm);
                 else
                         print_dbg(gi, "  gl_owner = %d (ended)\n",
-                                  gl->gl_owner_pid);
+                                  pid_nr(gl->gl_owner_pid));
         } else
                 print_dbg(gi, "  gl_owner = -1\n");
         print_dbg(gi, "  gl_ip = %lu\n", gl->gl_ip);
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index b16f604eea9f..2f9c6d136b37 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -36,11 +36,13 @@ static inline int gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
 {
         struct gfs2_holder *gh;
         int locked = 0;
+        struct pid *pid;
 
         /* Look in glock's list of holders for one with current task as owner */
         spin_lock(&gl->gl_spin);
+        pid = task_pid(current);
         list_for_each_entry(gh, &gl->gl_holders, gh_list) {
-                if (gh->gh_owner_pid == current->pid) {
+                if (gh->gh_owner_pid == pid) {
                         locked = 1;
                         break;
                 }
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 513aaf0dc0ab..525dcae352d6 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -151,7 +151,7 @@ struct gfs2_holder {
         struct list_head gh_list;
 
         struct gfs2_glock *gh_gl;
-        pid_t gh_owner_pid;
+        struct pid *gh_owner_pid;
         unsigned int gh_state;
         unsigned gh_flags;
 
@@ -182,7 +182,7 @@ struct gfs2_glock {
         unsigned int gl_hash;
         unsigned int gl_demote_state; /* state requested by remote node */
         unsigned long gl_demote_time; /* time of first demote request */
-        pid_t gl_owner_pid;
+        struct pid *gl_owner_pid;
         unsigned long gl_ip;
         struct list_head gl_holders;
         struct list_head gl_waiters1;   /* HIF_MUTEX */
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 728d3169e7bd..37725ade3c51 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -240,7 +240,7 @@ fail_put:
         ip->i_gl->gl_object = NULL;
         gfs2_glock_put(ip->i_gl);
 fail:
-        iput(inode);
+        iget_failed(inode);
         return ERR_PTR(error);
 }
 
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index 38dbe99a30ed..ac772b6d9dbb 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -446,7 +446,7 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)
          * so we need to supply one here. It doesn't happen often.
          */
         if (unlikely(page->index)) {
-                zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
+                zero_user(page, 0, PAGE_CACHE_SIZE);
                 return 0;
         }
 
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index b9da62348a87..334c7f85351b 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -143,7 +143,7 @@ static struct dentry *gfs2_get_parent(struct dentry *child)
          * have to return that as a(n invalid) pointer to dentry.
          */
         if (IS_ERR(inode))
-                return ERR_PTR(PTR_ERR(inode));
+                return ERR_CAST(inode);
 
         dentry = d_alloc_anon(inode);
         if (!dentry) {
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 43d511bba52d..4bee6aa845e4 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -884,12 +884,13 @@ static struct super_block* get_gfs2_sb(const char *dev_name)
                        dev_name);
                 goto out;
         }
-        error = vfs_getattr(nd.mnt, nd.dentry, &stat);
+        error = vfs_getattr(nd.path.mnt, nd.path.dentry, &stat);
 
         fstype = get_fs_type("gfs2");
         list_for_each_entry(s, &fstype->fs_supers, s_instances) {
                 if ((S_ISBLK(stat.mode) && s->s_dev == stat.rdev) ||
-                    (S_ISDIR(stat.mode) && s == nd.dentry->d_inode->i_sb)) {
+                    (S_ISDIR(stat.mode) &&
+                     s == nd.path.dentry->d_inode->i_sb)) {
                         sb = s;
                         goto free_nd;
                 }
@@ -899,7 +900,7 @@ static struct super_block* get_gfs2_sb(const char *dev_name)
                "mount point %s\n", dev_name);
 
 free_nd:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
         return sb;
 }
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 9f71372c1757..e87412902bed 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -111,7 +111,7 @@ static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry,
 
         inode = gfs2_lookupi(dir, &dentry->d_name, 0, nd);
         if (inode && IS_ERR(inode))
-                return ERR_PTR(PTR_ERR(inode));
+                return ERR_CAST(inode);
 
         if (inode) {
                 struct gfs2_glock *gl = GFS2_I(inode)->i_gl;
diff --git a/fs/hfs/bfind.c b/fs/hfs/bfind.c
index f8452a0eab56..4129cdb3f0d8 100644
--- a/fs/hfs/bfind.c
+++ b/fs/hfs/bfind.c
@@ -52,9 +52,9 @@ int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd)
                 rec = (e + b) / 2;
                 len = hfs_brec_lenoff(bnode, rec, &off);
                 keylen = hfs_brec_keylen(bnode, rec);
-                if (keylen == HFS_BAD_KEYLEN) {
+                if (keylen == 0) {
                         res = -EINVAL;
-                        goto done;
+                        goto fail;
                 }
                 hfs_bnode_read(bnode, fd->key, off, keylen);
                 cmpval = bnode->tree->keycmp(fd->key, fd->search_key);
@@ -71,9 +71,9 @@ int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd)
         if (rec != e && e >= 0) {
                 len = hfs_brec_lenoff(bnode, e, &off);
                 keylen = hfs_brec_keylen(bnode, e);
-                if (keylen == HFS_BAD_KEYLEN) {
+                if (keylen == 0) {
                         res = -EINVAL;
-                        goto done;
+                        goto fail;
                 }
                 hfs_bnode_read(bnode, fd->key, off, keylen);
         }
@@ -83,6 +83,7 @@ done:
         fd->keylength = keylen;
         fd->entryoffset = off + keylen;
         fd->entrylength = len - keylen;
+fail:
         return res;
 }
 
@@ -206,7 +207,7 @@ int hfs_brec_goto(struct hfs_find_data *fd, int cnt)
 
         len = hfs_brec_lenoff(bnode, fd->record, &off);
         keylen = hfs_brec_keylen(bnode, fd->record);
-        if (keylen == HFS_BAD_KEYLEN) {
+        if (keylen == 0) {
                 res = -EINVAL;
                 goto out;
         }
diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c
index 8626ee375ea8..878bf25dbc6a 100644
--- a/fs/hfs/brec.c
+++ b/fs/hfs/brec.c
@@ -49,14 +49,14 @@ u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec)
                         if (retval > node->tree->max_key_len + 2) {
                                 printk(KERN_ERR "hfs: keylen %d too large\n",
                                         retval);
-                                retval = HFS_BAD_KEYLEN;
+                                retval = 0;
                         }
                 } else {
                         retval = (hfs_bnode_read_u8(node, recoff) | 1) + 1;
                         if (retval > node->tree->max_key_len + 1) {
                                 printk(KERN_ERR "hfs: keylen %d too large\n",
                                         retval);
-                                retval = HFS_BAD_KEYLEN;
+                                retval = 0;
                         }
                 }
         }
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
index 110dd3515dc8..24cf6fc43021 100644
--- a/fs/hfs/btree.c
+++ b/fs/hfs/btree.c
@@ -81,15 +81,23 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
                 goto fail_page;
         if (!tree->node_count)
                 goto fail_page;
-        if ((id == HFS_EXT_CNID) && (tree->max_key_len != HFS_MAX_EXT_KEYLEN)) {
-                printk(KERN_ERR "hfs: invalid extent max_key_len %d\n",
-                        tree->max_key_len);
-                goto fail_page;
-        }
-        if ((id == HFS_CAT_CNID) && (tree->max_key_len != HFS_MAX_CAT_KEYLEN)) {
-                printk(KERN_ERR "hfs: invalid catalog max_key_len %d\n",
-                        tree->max_key_len);
-                goto fail_page;
+        switch (id) {
+        case HFS_EXT_CNID:
+                if (tree->max_key_len != HFS_MAX_EXT_KEYLEN) {
+                        printk(KERN_ERR "hfs: invalid extent max_key_len %d\n",
+                                tree->max_key_len);
+                        goto fail_page;
+                }
+                break;
+        case HFS_CAT_CNID:
+                if (tree->max_key_len != HFS_MAX_CAT_KEYLEN) {
+                        printk(KERN_ERR "hfs: invalid catalog max_key_len %d\n",
+                                tree->max_key_len);
+                        goto fail_page;
+                }
+                break;
+        default:
+                BUG();
         }
 
         tree->node_size_shift = ffs(size) - 1;
diff --git a/fs/hfs/hfs.h b/fs/hfs/hfs.h
index c6aae61adfe6..6f194d0768b6 100644
--- a/fs/hfs/hfs.h
+++ b/fs/hfs/hfs.h
@@ -28,8 +28,6 @@
 #define HFS_MAX_NAMELEN         128
 #define HFS_MAX_VALENCE         32767U
 
-#define HFS_BAD_KEYLEN          0xFF
-
 /* Meanings of the drAtrb field of the MDB,
  * Reference: _Inside Macintosh: Files_ p. 2-61
  */
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 16cbd902f8b9..32de44ed0021 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -6,7 +6,7 @@
  * This file may be distributed under the terms of the GNU General Public License.
  *
  * This file contains hfs_read_super(), some of the super_ops and
- * init_module() and cleanup_module().  The remaining super_ops are in
+ * init_hfs_fs() and exit_hfs_fs().  The remaining super_ops are in
  * inode.c since they deal with inodes.
  *
  * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index 050d29c0a5b5..bb5433608a42 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -22,6 +22,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
         struct hfs_btree *tree;
         struct hfs_btree_header_rec *head;
         struct address_space *mapping;
+        struct inode *inode;
         struct page *page;
         unsigned int size;
 
@@ -33,9 +34,10 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
         spin_lock_init(&tree->hash_lock);
         tree->sb = sb;
         tree->cnid = id;
-        tree->inode = iget(sb, id);
-        if (!tree->inode)
+        inode = hfsplus_iget(sb, id);
+        if (IS_ERR(inode))
                 goto free_tree;
+        tree->inode = inode;
 
         mapping = tree->inode->i_mapping;
         page = read_mapping_page(mapping, 0, NULL);
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 1955ee61251c..29683645fa0a 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -97,9 +97,9 @@ again:
                 goto fail;
         }
         hfs_find_exit(&fd);
-        inode = iget(dir->i_sb, cnid);
-        if (!inode)
-                return ERR_PTR(-EACCES);
+        inode = hfsplus_iget(dir->i_sb, cnid);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
         if (S_ISREG(inode->i_mode))
                 HFSPLUS_I(inode).dev = linkid;
 out:
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index d9f5eda6d039..d72d0a8b25aa 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -345,6 +345,9 @@ int hfsplus_parse_options(char *, struct hfsplus_sb_info *);
 void hfsplus_fill_defaults(struct hfsplus_sb_info *);
 int hfsplus_show_options(struct seq_file *, struct vfsmount *);
 
+/* super.c */
+struct inode *hfsplus_iget(struct super_block *, unsigned long);
+
 /* tables.c */
 extern u16 hfsplus_case_fold_table[];
 extern u16 hfsplus_decompose_table[];
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index ecf70dafb643..b0f9ad362d1d 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -20,11 +20,18 @@ static void hfsplus_destroy_inode(struct inode *inode);
 
 #include "hfsplus_fs.h"
 
-static void hfsplus_read_inode(struct inode *inode)
+struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino)
 {
         struct hfs_find_data fd;
         struct hfsplus_vh *vhdr;
-        int err;
+        struct inode *inode;
+        long err = -EIO;
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
 
         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
@@ -41,7 +48,7 @@ static void hfsplus_read_inode(struct inode *inode)
                 hfs_find_exit(&fd);
                 if (err)
                         goto bad_inode;
-                return;
+                goto done;
         }
         vhdr = HFSPLUS_SB(inode->i_sb).s_vhdr;
         switch(inode->i_ino) {
@@ -70,10 +77,13 @@ static void hfsplus_read_inode(struct inode *inode)
                 goto bad_inode;
         }
 
-        return;
+done:
+        unlock_new_inode(inode);
+        return inode;
 
- bad_inode:
-        make_bad_inode(inode);
+bad_inode:
+        iget_failed(inode);
+        return ERR_PTR(err);
 }
 
 static int hfsplus_write_inode(struct inode *inode, int unused)
@@ -262,7 +272,6 @@ static int hfsplus_remount(struct super_block *sb, int *flags, char *data)
 static const struct super_operations hfsplus_sops = {
         .alloc_inode    = hfsplus_alloc_inode,
         .destroy_inode  = hfsplus_destroy_inode,
-        .read_inode     = hfsplus_read_inode,
         .write_inode    = hfsplus_write_inode,
         .clear_inode    = hfsplus_clear_inode,
         .put_super      = hfsplus_put_super,
@@ -278,7 +287,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
         struct hfsplus_sb_info *sbi;
         hfsplus_cat_entry entry;
         struct hfs_find_data fd;
-        struct inode *root;
+        struct inode *root, *inode;
         struct qstr str;
         struct nls_table *nls = NULL;
         int err = -EINVAL;
@@ -366,18 +375,25 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
                 goto cleanup;
         }
 
-        HFSPLUS_SB(sb).alloc_file = iget(sb, HFSPLUS_ALLOC_CNID);
-        if (!HFSPLUS_SB(sb).alloc_file) {
+        inode = hfsplus_iget(sb, HFSPLUS_ALLOC_CNID);
+        if (IS_ERR(inode)) {
                 printk(KERN_ERR "hfs: failed to load allocation file\n");
+                err = PTR_ERR(inode);
                 goto cleanup;
         }
+        HFSPLUS_SB(sb).alloc_file = inode;
 
         /* Load the root directory */
-        root = iget(sb, HFSPLUS_ROOT_CNID);
+        root = hfsplus_iget(sb, HFSPLUS_ROOT_CNID);
+        if (IS_ERR(root)) {
+                printk(KERN_ERR "hfs: failed to load root directory\n");
+                err = PTR_ERR(root);
+                goto cleanup;
+        }
         sb->s_root = d_alloc_root(root);
         if (!sb->s_root) {
-                printk(KERN_ERR "hfs: failed to load root directory\n");
                 iput(root);
+                err = -ENOMEM;
                 goto cleanup;
         }
         sb->s_root->d_op = &hfsplus_dentry_operations;
@@ -390,9 +406,12 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
                 hfs_find_exit(&fd);
                 if (entry.type != cpu_to_be16(HFSPLUS_FOLDER))
                         goto cleanup;
-                HFSPLUS_SB(sb).hidden_dir = iget(sb, be32_to_cpu(entry.folder.id));
-                if (!HFSPLUS_SB(sb).hidden_dir)
+                inode = hfsplus_iget(sb, be32_to_cpu(entry.folder.id));
+                if (IS_ERR(inode)) {
+                        err = PTR_ERR(inode);
                         goto cleanup;
+                }
+                HFSPLUS_SB(sb).hidden_dir = inode;
         } else
                 hfs_find_exit(&fd);
 
diff --git a/fs/hfsplus/unicode.c b/fs/hfsplus/unicode.c
index 9e10f9444b64..628ccf6fa402 100644
--- a/fs/hfsplus/unicode.c
+++ b/fs/hfsplus/unicode.c
@@ -325,7 +325,7 @@ int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str)
         struct super_block *sb = dentry->d_sb;
         const char *astr;
         const u16 *dstr;
-        int casefold, decompose, size, dsize, len;
+        int casefold, decompose, size, len;
         unsigned long hash;
         wchar_t c;
         u16 c2;
@@ -336,6 +336,7 @@ int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str)
         astr = str->name;
         len = str->len;
         while (len > 0) {
+                int uninitialized_var(dsize);
                 size = asc2unichar(sb, astr, len, &c);
                 astr += size;
                 len -= size;
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 8966b050196e..5222345ddccf 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -11,6 +11,8 @@
 #include <linux/mm.h>
 #include <linux/pagemap.h>
 #include <linux/statfs.h>
+#include <linux/seq_file.h>
+#include <linux/mount.h>
 #include "hostfs.h"
 #include "init.h"
 #include "kern.h"
@@ -202,7 +204,7 @@ static char *follow_link(char *link)
         return ERR_PTR(n);
 }
 
-static int read_inode(struct inode *ino)
+static int hostfs_read_inode(struct inode *ino)
 {
         char *name;
         int err = 0;
@@ -233,6 +235,25 @@ static int read_inode(struct inode *ino)
         return err;
 }
 
+static struct inode *hostfs_iget(struct super_block *sb)
+{
+        struct inode *inode;
+        long ret;
+
+        inode = iget_locked(sb, 0);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (inode->i_state & I_NEW) {
+                ret = hostfs_read_inode(inode);
+                if (ret < 0) {
+                        iget_failed(inode);
+                        return ERR_PTR(ret);
+                }
+                unlock_new_inode(inode);
+        }
+        return inode;
+}
+
 int hostfs_statfs(struct dentry *dentry, struct kstatfs *sf)
 {
         /*
@@ -303,9 +324,16 @@ static void hostfs_destroy_inode(struct inode *inode)
         kfree(HOSTFS_I(inode));
 }
 
-static void hostfs_read_inode(struct inode *inode)
+static int hostfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 {
-        read_inode(inode);
+        struct inode *root = vfs->mnt_sb->s_root->d_inode;
+        const char *root_path = HOSTFS_I(root)->host_filename;
+        size_t offset = strlen(root_ino) + 1;
+
+        if (strlen(root_path) > offset)
+                seq_printf(seq, ",%s", root_path + offset);
+
+        return 0;
 }
 
 static const struct super_operations hostfs_sbops = {
@@ -313,8 +341,8 @@ static const struct super_operations hostfs_sbops = {
         .drop_inode     = generic_delete_inode,
         .delete_inode   = hostfs_delete_inode,
         .destroy_inode  = hostfs_destroy_inode,
-        .read_inode     = hostfs_read_inode,
         .statfs         = hostfs_statfs,
+        .show_options   = hostfs_show_options,
 };
 
 int hostfs_readdir(struct file *file, void *ent, filldir_t filldir)
@@ -571,10 +599,11 @@ int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
         char *name;
         int error, fd;
 
-        error = -ENOMEM;
-        inode = iget(dir->i_sb, 0);
-        if (inode == NULL)
+        inode = hostfs_iget(dir->i_sb);
+        if (IS_ERR(inode)) {
+                error = PTR_ERR(inode);
                 goto out;
+        }
 
         error = init_inode(inode, dentry);
         if (error)
@@ -615,10 +644,11 @@ struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
         char *name;
         int err;
 
-        err = -ENOMEM;
-        inode = iget(ino->i_sb, 0);
-        if (inode == NULL)
+        inode = hostfs_iget(ino->i_sb);
+        if (IS_ERR(inode)) {
+                err = PTR_ERR(inode);
                 goto out;
+        }
 
         err = init_inode(inode, dentry);
         if (err)
@@ -736,11 +766,13 @@ int hostfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 {
         struct inode *inode;
         char *name;
-        int err = -ENOMEM;
+        int err;
 
-        inode = iget(dir->i_sb, 0);
-        if (inode == NULL)
+        inode = hostfs_iget(dir->i_sb);
+        if (IS_ERR(inode)) {
+                err = PTR_ERR(inode);
                 goto out;
+        }
 
         err = init_inode(inode, dentry);
         if (err)
@@ -952,9 +984,11 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
 
         sprintf(host_root_path, "%s/%s", root_ino, req_root);
 
-        root_inode = iget(sb, 0);
-        if (root_inode == NULL)
+        root_inode = hostfs_iget(sb);
+        if (IS_ERR(root_inode)) {
+                err = PTR_ERR(root_inode);
                 goto out_free;
+        }
 
         err = init_inode(root_inode, NULL);
         if (err)
@@ -972,7 +1006,7 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
         if (sb->s_root == NULL)
                 goto out_put;
 
-        err = read_inode(root_inode);
+        err = hostfs_read_inode(root_inode);
         if (err) {
                 /* No iput in this case because the dput does that for us */
                 dput(sb->s_root);
diff --git a/fs/hostfs/hostfs_user.c b/fs/hostfs/hostfs_user.c
index 35c1a9f33f47..53fd0a67c11a 100644
--- a/fs/hostfs/hostfs_user.c
+++ b/fs/hostfs/hostfs_user.c
@@ -285,17 +285,17 @@ int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
                         return err;
 
                 times[0].tv_sec = atime_ts.tv_sec;
-                times[0].tv_usec = atime_ts.tv_nsec * 1000;
+                times[0].tv_usec = atime_ts.tv_nsec / 1000;
                 times[1].tv_sec = mtime_ts.tv_sec;
-                times[1].tv_usec = mtime_ts.tv_nsec * 1000;
+                times[1].tv_usec = mtime_ts.tv_nsec / 1000;
 
                 if (attrs->ia_valid & HOSTFS_ATTR_ATIME_SET) {
                         times[0].tv_sec = attrs->ia_atime.tv_sec;
-                        times[0].tv_usec = attrs->ia_atime.tv_nsec * 1000;
+                        times[0].tv_usec = attrs->ia_atime.tv_nsec / 1000;
                 }
                 if (attrs->ia_valid & HOSTFS_ATTR_MTIME_SET) {
                         times[1].tv_sec = attrs->ia_mtime.tv_sec;
-                        times[1].tv_usec = attrs->ia_mtime.tv_nsec * 1000;
+                        times[1].tv_usec = attrs->ia_mtime.tv_nsec / 1000;
                 }
 
                 if (fd >= 0) {
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 00971d999964..f63a699ec659 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -386,6 +386,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
         int lowercase, conv, eas, chk, errs, chkdsk, timeshift;
         int o;
         struct hpfs_sb_info *sbi = hpfs_sb(s);
+        char *new_opts = kstrdup(data, GFP_KERNEL);
         
         *flags |= MS_NOATIME;
         
@@ -398,15 +399,15 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
         if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase, &conv,
             &eas, &chk, &errs, &chkdsk, &timeshift))) {
                 printk("HPFS: bad mount options.\n");
-                return 1;
+                goto out_err;
         }
         if (o == 2) {
                 hpfs_help();
-                return 1;
+                goto out_err;
         }
         if (timeshift != sbi->sb_timeshift) {
                 printk("HPFS: timeshift can't be changed using remount.\n");
-                return 1;
+                goto out_err;
         }
 
         unmark_dirty(s);
@@ -419,7 +420,14 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
 
         if (!(*flags & MS_RDONLY)) mark_dirty(s);
 
+        kfree(s->s_options);
+        s->s_options = new_opts;
+
         return 0;
+
+out_err:
+        kfree(new_opts);
+        return -EINVAL;
 }
 
 /* Super operations */
@@ -432,6 +440,7 @@ static const struct super_operations hpfs_sops =
         .put_super      = hpfs_put_super,
         .statfs         = hpfs_statfs,
         .remount_fs     = hpfs_remount_fs,
+        .show_options   = generic_show_options,
 };
 
 static int hpfs_fill_super(struct super_block *s, void *options, int silent)
@@ -454,6 +463,8 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 
         int o;
 
+        save_mount_options(s, options);
+
         sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
         if (!sbi)
                 return -ENOMEM;
diff --git a/fs/hppfs/hppfs_kern.c b/fs/hppfs/hppfs_kern.c
index affb7412125e..a1e1f0f61aa5 100644
--- a/fs/hppfs/hppfs_kern.c
+++ b/fs/hppfs/hppfs_kern.c
@@ -155,6 +155,20 @@ static void hppfs_read_inode(struct inode *ino)
         ino->i_blocks = proc_ino->i_blocks;
 }
 
+static struct inode *hppfs_iget(struct super_block *sb)
+{
+        struct inode *inode;
+
+        inode = iget_locked(sb, 0);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (inode->i_state & I_NEW) {
+                hppfs_read_inode(inode);
+                unlock_new_inode(inode);
+        }
+        return inode;
+}
+
 static struct dentry *hppfs_lookup(struct inode *ino, struct dentry *dentry,
                                   struct nameidata *nd)
 {
@@ -190,9 +204,11 @@ static struct dentry *hppfs_lookup(struct inode *ino, struct dentry *dentry,
         if(IS_ERR(proc_dentry))
                 return(proc_dentry);
 
-        inode = iget(ino->i_sb, 0);
-        if(inode == NULL)
+        inode = hppfs_iget(ino->i_sb);
+        if (IS_ERR(inode)) {
+                err = PTR_ERR(inode);
                 goto out_dput;
+        }
 
         err = init_inode(inode, proc_dentry);
         if(err)
@@ -652,7 +668,6 @@ static void hppfs_destroy_inode(struct inode *inode)
 static const struct super_operations hppfs_sbops = {
         .alloc_inode    = hppfs_alloc_inode,
         .destroy_inode  = hppfs_destroy_inode,
-        .read_inode     = hppfs_read_inode,
         .delete_inode   = hppfs_delete_inode,
         .statfs         = hppfs_statfs,
 };
@@ -745,9 +760,11 @@ static int hppfs_fill_super(struct super_block *sb, void *d, int silent)
         sb->s_magic = HPPFS_SUPER_MAGIC;
         sb->s_op = &hppfs_sbops;
 
-        root_inode = iget(sb, 0);
-        if(root_inode == NULL)
+        root_inode = hppfs_iget(sb);
+        if (IS_ERR(root_inode)) {
+                err = PTR_ERR(root_inode);
                 goto out;
+        }
 
         err = init_inode(root_inode, proc_sb->s_root);
         if(err)
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 09ee07f02663..eee9487ae47f 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -734,6 +734,7 @@ static const struct super_operations hugetlbfs_ops = {
         .delete_inode   = hugetlbfs_delete_inode,
         .drop_inode     = hugetlbfs_drop_inode,
         .put_super      = hugetlbfs_put_super,
+        .show_options   = generic_show_options,
 };
 
 static int
@@ -768,7 +769,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
                 case Opt_mode:
                         if (match_octal(&args[0], &option))
                                 goto bad_val;
-                        pconfig->mode = option & 0777U;
+                        pconfig->mode = option & 01777U;
                         break;
 
                 case Opt_size: {
@@ -817,6 +818,8 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
         struct hugetlbfs_config config;
         struct hugetlbfs_sb_info *sbinfo;
 
+        save_mount_options(sb, data);
+
         config.nr_blocks = -1; /* No limit on size by default */
         config.nr_inodes = -1; /* No limit on number of inodes by default */
         config.uid = current->fsuid;
diff --git a/fs/inode.c b/fs/inode.c
index 276ffd6b6fdd..53245ffcf93d 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -928,8 +928,6 @@ EXPORT_SYMBOL(ilookup);
  * @set:        callback used to initialize a new struct inode
  * @data:       opaque data pointer to pass to @test and @set
  *
- * This is iget() without the read_inode() portion of get_new_inode().
- *
  * iget5_locked() uses ifind() to search for the inode specified by @hashval
  * and @data in the inode cache and if present it is returned with an increased
  * reference count. This is a generalized version of iget_locked() for file
@@ -966,8 +964,6 @@ EXPORT_SYMBOL(iget5_locked);
  * @sb:         super block of file system
  * @ino:        inode number to get
  *
- * This is iget() without the read_inode() portion of get_new_inode_fast().
- *
  * iget_locked() uses ifind_fast() to search for the inode specified by @ino in
  * the inode cache and if present it is returned with an increased reference
  * count. This is for file systems where the inode number is sufficient for
diff --git a/fs/inotify.c b/fs/inotify.c
index 2c5b92152876..690e72595e6e 100644
--- a/fs/inotify.c
+++ b/fs/inotify.c
@@ -168,20 +168,14 @@ static void set_dentry_child_flags(struct inode *inode, int watched)
                 struct dentry *child;
 
                 list_for_each_entry(child, &alias->d_subdirs, d_u.d_child) {
-                        if (!child->d_inode) {
-                                WARN_ON(child->d_flags & DCACHE_INOTIFY_PARENT_WATCHED);
+                        if (!child->d_inode)
                                 continue;
-                        }
+
                         spin_lock(&child->d_lock);
-                        if (watched) {
-                                WARN_ON(child->d_flags &
-                                                DCACHE_INOTIFY_PARENT_WATCHED);
+                        if (watched)
                                 child->d_flags |= DCACHE_INOTIFY_PARENT_WATCHED;
-                        } else {
-                                WARN_ON(!(child->d_flags &
-                                        DCACHE_INOTIFY_PARENT_WATCHED));
-                                child->d_flags&=~DCACHE_INOTIFY_PARENT_WATCHED;
-                        }
+                        else
+                                child->d_flags &=~DCACHE_INOTIFY_PARENT_WATCHED;
                         spin_unlock(&child->d_lock);
                 }
         }
@@ -253,7 +247,6 @@ void inotify_d_instantiate(struct dentry *entry, struct inode *inode)
         if (!inode)
                 return;
 
-        WARN_ON(entry->d_flags & DCACHE_INOTIFY_PARENT_WATCHED);
         spin_lock(&entry->d_lock);
         parent = entry->d_parent;
         if (parent->d_inode && inotify_inode_watched(parent->d_inode))
@@ -627,6 +620,7 @@ s32 inotify_add_watch(struct inotify_handle *ih, struct inotify_watch *watch,
                       struct inode *inode, u32 mask)
 {
         int ret = 0;
+        int newly_watched;
 
         /* don't allow invalid bits: we don't want flags set */
         mask &= IN_ALL_EVENTS | IN_ONESHOT;
@@ -653,12 +647,18 @@ s32 inotify_add_watch(struct inotify_handle *ih, struct inotify_watch *watch,
          */
         watch->inode = igrab(inode);
 
-        if (!inotify_inode_watched(inode))
-                set_dentry_child_flags(inode, 1);
-
         /* Add the watch to the handle's and the inode's list */
+        newly_watched = !inotify_inode_watched(inode);
         list_add(&watch->h_list, &ih->watches);
         list_add(&watch->i_list, &inode->inotify_watches);
+        /*
+         * Set child flags _after_ adding the watch, so there is no race
+         * windows where newly instantiated children could miss their parent's
+         * watched flag.
+         */
+        if (newly_watched)
+                set_dentry_child_flags(inode, 1);
+
 out:
         mutex_unlock(&ih->mutex);
         mutex_unlock(&inode->inotify_mutex);
diff --git a/fs/inotify_user.c b/fs/inotify_user.c
index 5e009331c01f..7b94a1e3c015 100644
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -41,9 +41,9 @@ static struct kmem_cache *event_cachep __read_mostly;
 static struct vfsmount *inotify_mnt __read_mostly;
 
 /* these are configurable via /proc/sys/fs/inotify/ */
-int inotify_max_user_instances __read_mostly;
-int inotify_max_user_watches __read_mostly;
-int inotify_max_queued_events __read_mostly;
+static int inotify_max_user_instances __read_mostly;
+static int inotify_max_user_watches __read_mostly;
+static int inotify_max_queued_events __read_mostly;
 
 /*
  * Lock ordering:
@@ -79,6 +79,7 @@ struct inotify_device {
         atomic_t                count;          /* reference count */
         struct user_struct      *user;          /* user who opened this dev */
         struct inotify_handle   *ih;            /* inotify handle */
+        struct fasync_struct    *fa;            /* async notification */
         unsigned int            queue_size;     /* size of the queue (bytes) */
         unsigned int            event_count;    /* number of pending events */
         unsigned int            max_events;     /* maximum number of events */
@@ -248,6 +249,19 @@ inotify_dev_get_event(struct inotify_device *dev)
 }
 
 /*
+ * inotify_dev_get_last_event - return the last event in the given dev's queue
+ *
+ * Caller must hold dev->ev_mutex.
+ */
+static inline struct inotify_kernel_event *
+inotify_dev_get_last_event(struct inotify_device *dev)
+{
+        if (list_empty(&dev->events))
+                return NULL;
+        return list_entry(dev->events.prev, struct inotify_kernel_event, list);
+}
+
+/*
  * inotify_dev_queue_event - event handler registered with core inotify, adds
  * a new event to the given device
  *
@@ -269,11 +283,11 @@ static void inotify_dev_queue_event(struct inotify_watch *w, u32 wd, u32 mask,
         /* we can safely put the watch as we don't reference it while
          * generating the event
          */
-        if (mask & IN_IGNORED || mask & IN_ONESHOT)
+        if (mask & IN_IGNORED || w->mask & IN_ONESHOT)
                 put_inotify_watch(w); /* final put */
 
         /* coalescing: drop this event if it is a dupe of the previous */
-        last = inotify_dev_get_event(dev);
+        last = inotify_dev_get_last_event(dev);
         if (last && last->event.mask == mask && last->event.wd == wd &&
                         last->event.cookie == cookie) {
                 const char *lastname = last->name;
@@ -302,6 +316,7 @@ static void inotify_dev_queue_event(struct inotify_watch *w, u32 wd, u32 mask,
         dev->queue_size += sizeof(struct inotify_event) + kevent->event.len;
         list_add_tail(&kevent->list, &dev->events);
         wake_up_interruptible(&dev->wq);
+        kill_fasync(&dev->fa, SIGIO, POLL_IN);
 
 out:
         mutex_unlock(&dev->ev_mutex);
@@ -352,7 +367,7 @@ static int find_inode(const char __user *dirname, struct nameidata *nd,
         /* you can only watch an inode if you have read permissions on it */
         error = vfs_permission(nd, MAY_READ);
         if (error)
-                path_release(nd);
+                path_put(&nd->path);
         return error;
 }
 
@@ -490,6 +505,13 @@ static ssize_t inotify_read(struct file *file, char __user *buf,
         return ret;
 }
 
+static int inotify_fasync(int fd, struct file *file, int on)
+{
+        struct inotify_device *dev = file->private_data;
+
+        return fasync_helper(fd, file, on, &dev->fa) >= 0 ? 0 : -EIO;
+}
+
 static int inotify_release(struct inode *ignored, struct file *file)
 {
         struct inotify_device *dev = file->private_data;
@@ -502,6 +524,9 @@ static int inotify_release(struct inode *ignored, struct file *file)
                 inotify_dev_event_dequeue(dev);
         mutex_unlock(&dev->ev_mutex);
 
+        if (file->f_flags & FASYNC)
+                inotify_fasync(-1, file, 0);
+
         /* free this device: the put matching the get in inotify_init() */
         put_inotify_dev(dev);
 
@@ -530,6 +555,7 @@ static long inotify_ioctl(struct file *file, unsigned int cmd,
 static const struct file_operations inotify_fops = {
         .poll           = inotify_poll,
         .read           = inotify_read,
+        .fasync         = inotify_fasync,
         .release        = inotify_release,
         .unlocked_ioctl = inotify_ioctl,
         .compat_ioctl   = inotify_ioctl,
@@ -577,6 +603,7 @@ asmlinkage long sys_inotify_init(void)
                 goto out_free_dev;
         }
         dev->ih = ih;
+        dev->fa = NULL;
 
         filp->f_op = &inotify_fops;
         filp->f_path.mnt = mntget(inotify_mnt);
@@ -640,7 +667,7 @@ asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask)
                 goto fput_and_out;
 
         /* inode held in place by reference to nd; dev by fget on fd */
-        inode = nd.dentry->d_inode;
+        inode = nd.path.dentry->d_inode;
         dev = filp->private_data;
 
         mutex_lock(&dev->up_mutex);
@@ -649,7 +676,7 @@ asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask)
                 ret = create_watch(dev, inode, mask);
         mutex_unlock(&dev->up_mutex);
 
-        path_release(&nd);
+        path_put(&nd.path);
 fput_and_out:
         fput_light(filp, fput_needed);
         return ret;
diff --git a/fs/ioctl.c b/fs/ioctl.c
index c2a773e8620b..f32fbde2175e 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -12,12 +12,24 @@
 #include <linux/fs.h>
 #include <linux/security.h>
 #include <linux/module.h>
+#include <linux/uaccess.h>
 
-#include <asm/uaccess.h>
 #include <asm/ioctls.h>
 
-static long do_ioctl(struct file *filp, unsigned int cmd,
-                unsigned long arg)
+/**
+ * vfs_ioctl - call filesystem specific ioctl methods
+ * @filp:       open file to invoke ioctl method on
+ * @cmd:        ioctl command to execute
+ * @arg:        command-specific argument for ioctl
+ *
+ * Invokes filesystem specific ->unlocked_ioctl, if one exists; otherwise
+ * invokes filesystem specific ->ioctl method.  If neither method exists,
+ * returns -ENOTTY.
+ *
+ * Returns 0 on success, -errno on error.
+ */
+long vfs_ioctl(struct file *filp, unsigned int cmd,
+               unsigned long arg)
 {
         int error = -ENOTTY;
 
@@ -40,123 +52,148 @@ static long do_ioctl(struct file *filp, unsigned int cmd,
         return error;
 }
 
+static int ioctl_fibmap(struct file *filp, int __user *p)
+{
+        struct address_space *mapping = filp->f_mapping;
+        int res, block;
+
+        /* do we support this mess? */
+        if (!mapping->a_ops->bmap)
+                return -EINVAL;
+        if (!capable(CAP_SYS_RAWIO))
+                return -EPERM;
+        res = get_user(block, p);
+        if (res)
+                return res;
+        lock_kernel();
+        res = mapping->a_ops->bmap(mapping, block);
+        unlock_kernel();
+        return put_user(res, p);
+}
+
 static int file_ioctl(struct file *filp, unsigned int cmd,
                 unsigned long arg)
 {
-        int error;
-        int block;
-        struct inode * inode = filp->f_path.dentry->d_inode;
+        struct inode *inode = filp->f_path.dentry->d_inode;
         int __user *p = (int __user *)arg;
 
         switch (cmd) {
-                case FIBMAP:
-                {
-                        struct address_space *mapping = filp->f_mapping;
-                        int res;
-                        /* do we support this mess? */
-                        if (!mapping->a_ops->bmap)
-                                return -EINVAL;
-                        if (!capable(CAP_SYS_RAWIO))
-                                return -EPERM;
-                        if ((error = get_user(block, p)) != 0)
-                                return error;
+        case FIBMAP:
+                return ioctl_fibmap(filp, p);
+        case FIGETBSZ:
+                return put_user(inode->i_sb->s_blocksize, p);
+        case FIONREAD:
+                return put_user(i_size_read(inode) - filp->f_pos, p);
+        }
 
+        return vfs_ioctl(filp, cmd, arg);
+}
+
+static int ioctl_fionbio(struct file *filp, int __user *argp)
+{
+        unsigned int flag;
+        int on, error;
+
+        error = get_user(on, argp);
+        if (error)
+                return error;
+        flag = O_NONBLOCK;
+#ifdef __sparc__
+        /* SunOS compatibility item. */
+        if (O_NONBLOCK != O_NDELAY)
+                flag |= O_NDELAY;
+#endif
+        if (on)
+                filp->f_flags |= flag;
+        else
+                filp->f_flags &= ~flag;
+        return error;
+}
+
+static int ioctl_fioasync(unsigned int fd, struct file *filp,
+                          int __user *argp)
+{
+        unsigned int flag;
+        int on, error;
+
+        error = get_user(on, argp);
+        if (error)
+                return error;
+        flag = on ? FASYNC : 0;
+
+        /* Did FASYNC state change ? */
+        if ((flag ^ filp->f_flags) & FASYNC) {
+                if (filp->f_op && filp->f_op->fasync) {
                         lock_kernel();
-                        res = mapping->a_ops->bmap(mapping, block);
+                        error = filp->f_op->fasync(fd, filp, on);
                         unlock_kernel();
-                        return put_user(res, p);
-                }
-                case FIGETBSZ:
-                        return put_user(inode->i_sb->s_blocksize, p);
-                case FIONREAD:
-                        return put_user(i_size_read(inode) - filp->f_pos, p);
+                } else
+                        error = -ENOTTY;
         }
+        if (error)
+                return error;
 
-        return do_ioctl(filp, cmd, arg);
+        if (on)
+                filp->f_flags |= FASYNC;
+        else
+                filp->f_flags &= ~FASYNC;
+        return error;
 }
 
 /*
  * When you add any new common ioctls to the switches above and below
  * please update compat_sys_ioctl() too.
  *
- * vfs_ioctl() is not for drivers and not intended to be EXPORT_SYMBOL()'d.
+ * do_vfs_ioctl() is not for drivers and not intended to be EXPORT_SYMBOL()'d.
  * It's just a simple helper for sys_ioctl and compat_sys_ioctl.
  */
-int vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd, unsigned long arg)
+int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
+             unsigned long arg)
 {
-        unsigned int flag;
-        int on, error = 0;
+        int error = 0;
+        int __user *argp = (int __user *)arg;
 
         switch (cmd) {
-                case FIOCLEX:
-                        set_close_on_exec(fd, 1);
-                        break;
-
-                case FIONCLEX:
-                        set_close_on_exec(fd, 0);
-                        break;
-
-                case FIONBIO:
-                        if ((error = get_user(on, (int __user *)arg)) != 0)
-                                break;
-                        flag = O_NONBLOCK;
-#ifdef __sparc__
-                        /* SunOS compatibility item. */
-                        if(O_NONBLOCK != O_NDELAY)
-                                flag |= O_NDELAY;
-#endif
-                        if (on)
-                                filp->f_flags |= flag;
-                        else
-                                filp->f_flags &= ~flag;
-                        break;
-
-                case FIOASYNC:
-                        if ((error = get_user(on, (int __user *)arg)) != 0)
-                                break;
-                        flag = on ? FASYNC : 0;
-
-                        /* Did FASYNC state change ? */
-                        if ((flag ^ filp->f_flags) & FASYNC) {
-                                if (filp->f_op && filp->f_op->fasync) {
-                                        lock_kernel();
-                                        error = filp->f_op->fasync(fd, filp, on);
-                                        unlock_kernel();
-                                }
-                                else error = -ENOTTY;
-                        }
-                        if (error != 0)
-                                break;
-
-                        if (on)
-                                filp->f_flags |= FASYNC;
-                        else
-                                filp->f_flags &= ~FASYNC;
-                        break;
-
-                case FIOQSIZE:
-                        if (S_ISDIR(filp->f_path.dentry->d_inode->i_mode) ||
-                            S_ISREG(filp->f_path.dentry->d_inode->i_mode) ||
-                            S_ISLNK(filp->f_path.dentry->d_inode->i_mode)) {
-                                loff_t res = inode_get_bytes(filp->f_path.dentry->d_inode);
-                                error = copy_to_user((loff_t __user *)arg, &res, sizeof(res)) ? -EFAULT : 0;
-                        }
-                        else
-                                error = -ENOTTY;
-                        break;
-                default:
-                        if (S_ISREG(filp->f_path.dentry->d_inode->i_mode))
-                                error = file_ioctl(filp, cmd, arg);
-                        else
-                                error = do_ioctl(filp, cmd, arg);
-                        break;
+        case FIOCLEX:
+                set_close_on_exec(fd, 1);
+                break;
+
+        case FIONCLEX:
+                set_close_on_exec(fd, 0);
+                break;
+
+        case FIONBIO:
+                error = ioctl_fionbio(filp, argp);
+                break;
+
+        case FIOASYNC:
+                error = ioctl_fioasync(fd, filp, argp);
+                break;
+
+        case FIOQSIZE:
+                if (S_ISDIR(filp->f_path.dentry->d_inode->i_mode) ||
+                    S_ISREG(filp->f_path.dentry->d_inode->i_mode) ||
+                    S_ISLNK(filp->f_path.dentry->d_inode->i_mode)) {
+                        loff_t res =
+                                inode_get_bytes(filp->f_path.dentry->d_inode);
+                        error = copy_to_user((loff_t __user *)arg, &res,
+                                             sizeof(res)) ? -EFAULT : 0;
+                } else
+                        error = -ENOTTY;
+                break;
+        default:
+                if (S_ISREG(filp->f_path.dentry->d_inode->i_mode))
+                        error = file_ioctl(filp, cmd, arg);
+                else
+                        error = vfs_ioctl(filp, cmd, arg);
+                break;
         }
         return error;
 }
 
 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
 {
-        struct file * filp;
+        struct file *filp;
         int error = -EBADF;
         int fput_needed;
 
@@ -168,7 +205,7 @@ asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
         if (error)
                 goto out_fput;
 
-        error = vfs_ioctl(filp, fd, cmd, arg);
+        error = do_vfs_ioctl(filp, fd, cmd, arg);
  out_fput:
         fput_light(filp, fput_needed);
  out:
diff --git a/fs/isofs/export.c b/fs/isofs/export.c
index 29f9753ae5e5..bb219138331a 100644
--- a/fs/isofs/export.c
+++ b/fs/isofs/export.c
@@ -26,11 +26,9 @@ isofs_export_iget(struct super_block *sb,
         if (block == 0)
                 return ERR_PTR(-ESTALE);
         inode = isofs_iget(sb, block, offset);
-        if (inode == NULL)
-                return ERR_PTR(-ENOMEM);
-        if (is_bad_inode(inode)
-            || (generation && inode->i_generation != generation))
-        {
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
+        if (generation && inode->i_generation != generation) {
                 iput(inode);
                 return ERR_PTR(-ESTALE);
         }
@@ -110,8 +108,10 @@ static struct dentry *isofs_export_get_parent(struct dentry *child)
         parent_inode = isofs_iget(child_inode->i_sb,
                                   parent_block,
                                   parent_offset);
-        if (parent_inode == NULL) {
-                rv = ERR_PTR(-EACCES);
+        if (IS_ERR(parent_inode)) {
+                rv = ERR_CAST(parent_inode);
+                if (rv != ERR_PTR(-ENOMEM))
+                        rv = ERR_PTR(-EACCES);
                 goto out;
         }
 
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 09e3d306e96f..044a254d526b 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -54,7 +54,7 @@ static void isofs_put_super(struct super_block *sb)
         return;
 }
 
-static void isofs_read_inode(struct inode *);
+static int isofs_read_inode(struct inode *);
 static int isofs_statfs (struct dentry *, struct kstatfs *);
 
 static struct kmem_cache *isofs_inode_cachep;
@@ -107,10 +107,10 @@ static int isofs_remount(struct super_block *sb, int *flags, char *data)
 static const struct super_operations isofs_sops = {
         .alloc_inode    = isofs_alloc_inode,
         .destroy_inode  = isofs_destroy_inode,
-        .read_inode     = isofs_read_inode,
         .put_super      = isofs_put_super,
         .statfs         = isofs_statfs,
         .remount_fs     = isofs_remount,
+        .show_options   = generic_show_options,
 };
 
 
@@ -145,7 +145,8 @@ struct iso9660_options{
         char nocompress;
         unsigned char check;
         unsigned int blocksize;
-        mode_t mode;
+        mode_t fmode;
+        mode_t dmode;
         gid_t gid;
         uid_t uid;
         char *iocharset;
@@ -306,7 +307,7 @@ enum {
         Opt_block, Opt_check_r, Opt_check_s, Opt_cruft, Opt_gid, Opt_ignore,
         Opt_iocharset, Opt_map_a, Opt_map_n, Opt_map_o, Opt_mode, Opt_nojoliet,
         Opt_norock, Opt_sb, Opt_session, Opt_uid, Opt_unhide, Opt_utf8, Opt_err,
-        Opt_nocompress, Opt_hide, Opt_showassoc,
+        Opt_nocompress, Opt_hide, Opt_showassoc, Opt_dmode,
 };
 
 static match_table_t tokens = {
@@ -333,6 +334,7 @@ static match_table_t tokens = {
         {Opt_uid, "uid=%u"},
         {Opt_gid, "gid=%u"},
         {Opt_mode, "mode=%u"},
+        {Opt_dmode, "dmode=%u"},
         {Opt_block, "block=%u"},
         {Opt_ignore, "conv=binary"},
         {Opt_ignore, "conv=b"},
@@ -360,7 +362,7 @@ static int parse_options(char *options, struct iso9660_options *popt)
         popt->check = 'u';              /* unset */
         popt->nocompress = 0;
         popt->blocksize = 1024;
-        popt->mode = S_IRUGO | S_IXUGO; /*
+        popt->fmode = popt->dmode = S_IRUGO | S_IXUGO; /*
                                          * r-x for all.  The disc could
                                          * be shared with DOS machines so
                                          * virtually anything could be
@@ -452,7 +454,12 @@ static int parse_options(char *options, struct iso9660_options *popt)
                 case Opt_mode:
                         if (match_int(&args[0], &option))
                                 return 0;
-                        popt->mode = option;
+                        popt->fmode = option;
+                        break;
+                case Opt_dmode:
+                        if (match_int(&args[0], &option))
+                                return 0;
+                        popt->dmode = option;
                         break;
                 case Opt_block:
                         if (match_int(&args[0], &option))
@@ -552,9 +559,11 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
         int joliet_level = 0;
         int iso_blknum, block;
         int orig_zonesize;
-        int table;
+        int table, error = -EINVAL;
         unsigned int vol_desc_start;
 
+        save_mount_options(s, data);
+
         sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
         if (!sbi)
                 return -ENOMEM;
@@ -802,7 +811,8 @@ root_found:
          * on the disk as suid, so we merely allow them to set the default
          * permissions.
          */
-        sbi->s_mode = opt.mode & 0777;
+        sbi->s_fmode = opt.fmode & 0777;
+        sbi->s_dmode = opt.dmode & 0777;
 
         /*
          * Read the root inode, which _may_ result in changing
@@ -810,6 +820,8 @@ root_found:
          * we then decide whether to use the Joliet descriptor.
          */
         inode = isofs_iget(s, sbi->s_firstdatazone, 0);
+        if (IS_ERR(inode))
+                goto out_no_root;
 
         /*
          * If this disk has both Rock Ridge and Joliet on it, then we
@@ -829,6 +841,8 @@ root_found:
                                 "ISOFS: changing to secondary root\n");
                         iput(inode);
                         inode = isofs_iget(s, sbi->s_firstdatazone, 0);
+                        if (IS_ERR(inode))
+                                goto out_no_root;
                 }
         }
 
@@ -842,8 +856,6 @@ root_found:
         sbi->s_joliet_level = joliet_level;
 
         /* check the root inode */
-        if (!inode)
-                goto out_no_root;
         if (!inode->i_op)
                 goto out_bad_root;
 
@@ -876,11 +888,14 @@ root_found:
          */
 out_bad_root:
         printk(KERN_WARNING "%s: root inode not initialized\n", __func__);
-        goto out_iput;
-out_no_root:
-        printk(KERN_WARNING "%s: get root inode failed\n", __func__);
 out_iput:
         iput(inode);
+        goto out_no_inode;
+out_no_root:
+        error = PTR_ERR(inode);
+        if (error != -ENOMEM)
+                printk(KERN_WARNING "%s: get root inode failed\n", __func__);
+out_no_inode:
 #ifdef CONFIG_JOLIET
         if (sbi->s_nls_iocharset)
                 unload_nls(sbi->s_nls_iocharset);
@@ -908,7 +923,7 @@ out_freesbi:
         kfree(opt.iocharset);
         kfree(sbi);
         s->s_fs_info = NULL;
-        return -EINVAL;
+        return error;
 }
 
 static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
@@ -930,7 +945,7 @@ static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
 /*
  * Get a set of blocks; filling in buffer_heads if already allocated
  * or getblk() if they are not.  Returns the number of blocks inserted
- * (0 == error.)
+ * (-ve == error.)
  */
 int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
                      struct buffer_head **bh, unsigned long nblocks)
@@ -940,11 +955,12 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
         unsigned int firstext;
         unsigned long nextblk, nextoff;
         long iblock = (long)iblock_s;
-        int section, rv;
+        int section, rv, error;
         struct iso_inode_info *ei = ISOFS_I(inode);
 
         lock_kernel();
 
+        error = -EIO;
         rv = 0;
         if (iblock < 0 || iblock != iblock_s) {
                 printk(KERN_DEBUG "%s: block number too large\n", __func__);
@@ -983,8 +999,10 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
 
                         offset += sect_size;
                         ninode = isofs_iget(inode->i_sb, nextblk, nextoff);
-                        if (!ninode)
+                        if (IS_ERR(ninode)) {
+                                error = PTR_ERR(ninode);
                                 goto abort;
+                        }
                         firstext  = ISOFS_I(ninode)->i_first_extent;
                         sect_size = ISOFS_I(ninode)->i_section_size >> ISOFS_BUFFER_BITS(ninode);
                         nextblk   = ISOFS_I(ninode)->i_next_section_block;
@@ -1015,9 +1033,10 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
                 rv++;
         }
 
+        error = 0;
 abort:
         unlock_kernel();
-        return rv;
+        return rv != 0 ? rv : error;
 }
 
 /*
@@ -1026,12 +1045,15 @@ abort:
 static int isofs_get_block(struct inode *inode, sector_t iblock,
                     struct buffer_head *bh_result, int create)
 {
+        int ret;
+
         if (create) {
                 printk(KERN_DEBUG "%s: Kernel tries to allocate a block\n", __func__);
                 return -EROFS;
         }
 
-        return isofs_get_blocks(inode, iblock, &bh_result, 1) ? 0 : -EIO;
+        ret = isofs_get_blocks(inode, iblock, &bh_result, 1);
+        return ret < 0 ? ret : 0;
 }
 
 static int isofs_bmap(struct inode *inode, sector_t block)
@@ -1186,7 +1208,7 @@ out_toomany:
         goto out;
 }
 
-static void isofs_read_inode(struct inode *inode)
+static int isofs_read_inode(struct inode *inode)
 {
         struct super_block *sb = inode->i_sb;
         struct isofs_sb_info *sbi = ISOFS_SB(sb);
@@ -1199,6 +1221,7 @@ static void isofs_read_inode(struct inode *inode)
         unsigned int de_len;
         unsigned long offset;
         struct iso_inode_info *ei = ISOFS_I(inode);
+        int ret = -EIO;
 
         block = ei->i_iget5_block;
         bh = sb_bread(inode->i_sb, block);
@@ -1216,6 +1239,7 @@ static void isofs_read_inode(struct inode *inode)
                 tmpde = kmalloc(de_len, GFP_KERNEL);
                 if (tmpde == NULL) {
                         printk(KERN_INFO "%s: out of memory\n", __func__);
+                        ret = -ENOMEM;
                         goto fail;
                 }
                 memcpy(tmpde, bh->b_data + offset, frag1);
@@ -1235,7 +1259,7 @@ static void isofs_read_inode(struct inode *inode)
         ei->i_file_format = isofs_file_normal;
 
         if (de->flags[-high_sierra] & 2) {
-                inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR;
+                inode->i_mode = sbi->s_dmode | S_IFDIR;
                 inode->i_nlink = 1;     /*
                                          * Set to 1.  We know there are 2, but
                                          * the find utility tries to optimize
@@ -1245,9 +1269,8 @@ static void isofs_read_inode(struct inode *inode)
                                          */
         } else {
                 /* Everybody gets to read the file. */
-                inode->i_mode = sbi->s_mode;
+                inode->i_mode = sbi->s_fmode | S_IFREG;
                 inode->i_nlink = 1;
-                inode->i_mode |= S_IFREG;
         }
         inode->i_uid = sbi->s_uid;
         inode->i_gid = sbi->s_gid;
@@ -1259,8 +1282,10 @@ static void isofs_read_inode(struct inode *inode)
 
         ei->i_section_size = isonum_733(de->size);
         if (de->flags[-high_sierra] & 0x80) {
-                if(isofs_read_level3_size(inode))
+                ret = isofs_read_level3_size(inode);
+                if (ret < 0)
                         goto fail;
+                ret = -EIO;
         } else {
                 ei->i_next_section_block = 0;
                 ei->i_next_section_offset = 0;
@@ -1346,16 +1371,16 @@ static void isofs_read_inode(struct inode *inode)
                 /* XXX - parse_rock_ridge_inode() had already set i_rdev. */
                 init_special_inode(inode, inode->i_mode, inode->i_rdev);
 
+        ret = 0;
 out:
         kfree(tmpde);
         if (bh)
                 brelse(bh);
-        return;
+        return ret;
 
 out_badread:
         printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
 fail:
-        make_bad_inode(inode);
         goto out;
 }
 
@@ -1394,9 +1419,10 @@ struct inode *isofs_iget(struct super_block *sb,
         unsigned long hashval;
         struct inode *inode;
         struct isofs_iget5_callback_data data;
+        long ret;
 
         if (offset >= 1ul << sb->s_blocksize_bits)
-                return NULL;
+                return ERR_PTR(-EINVAL);
 
         data.block = block;
         data.offset = offset;
@@ -1406,9 +1432,17 @@ struct inode *isofs_iget(struct super_block *sb,
         inode = iget5_locked(sb, hashval, &isofs_iget5_test,
                                 &isofs_iget5_set, &data);
 
-        if (inode && (inode->i_state & I_NEW)) {
-                sb->s_op->read_inode(inode);
-                unlock_new_inode(inode);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+
+        if (inode->i_state & I_NEW) {
+                ret = isofs_read_inode(inode);
+                if (ret < 0) {
+                        iget_failed(inode);
+                        inode = ERR_PTR(ret);
+                } else {
+                        unlock_new_inode(inode);
+                }
         }
 
         return inode;
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index f3213f9f89af..d1bdf8adb351 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -51,7 +51,8 @@ struct isofs_sb_info {
         unsigned char s_hide;
         unsigned char s_showassoc;
 
-        mode_t s_mode;
+        mode_t s_fmode;
+        mode_t s_dmode;
         gid_t s_gid;
         uid_t s_uid;
         struct nls_table *s_nls_iocharset; /* Native language support table */
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index e2b4dad39ca9..344b247bc29a 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -179,9 +179,9 @@ struct dentry *isofs_lookup(struct inode *dir, struct dentry *dentry, struct nam
         inode = NULL;
         if (found) {
                 inode = isofs_iget(dir->i_sb, block, offset);
-                if (!inode) {
+                if (IS_ERR(inode)) {
                         unlock_kernel();
-                        return ERR_PTR(-EACCES);
+                        return ERR_CAST(inode);
                 }
         }
         unlock_kernel();
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index f3a1db3098de..6bd48f0a7047 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -474,8 +474,10 @@ repeat:
                             isofs_iget(inode->i_sb,
                                        ISOFS_I(inode)->i_first_extent,
                                        0);
-                        if (!reloc)
+                        if (IS_ERR(reloc)) {
+                                ret = PTR_ERR(reloc);
                                 goto out;
+                        }
                         inode->i_mode = reloc->i_mode;
                         inode->i_nlink = reloc->i_nlink;
                         inode->i_uid = reloc->i_uid;
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 31853eb65b4c..a38c7186c570 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -104,7 +104,8 @@ static int journal_write_commit_record(journal_t *journal,
 {
         struct journal_head *descriptor;
         struct buffer_head *bh;
-        int i, ret;
+        journal_header_t *header;
+        int ret;
         int barrier_done = 0;
 
         if (is_journal_aborted(journal))
@@ -116,13 +117,10 @@ static int journal_write_commit_record(journal_t *journal,
 
         bh = jh2bh(descriptor);
 
-        /* AKPM: buglet - add `i' to tmp! */
-        for (i = 0; i < bh->b_size; i += 512) {
-                journal_header_t *tmp = (journal_header_t*)bh->b_data;
-                tmp->h_magic = cpu_to_be32(JFS_MAGIC_NUMBER);
-                tmp->h_blocktype = cpu_to_be32(JFS_COMMIT_BLOCK);
-                tmp->h_sequence = cpu_to_be32(commit_transaction->t_tid);
-        }
+        header = (journal_header_t *)(bh->b_data);
+        header->h_magic = cpu_to_be32(JFS_MAGIC_NUMBER);
+        header->h_blocktype = cpu_to_be32(JFS_COMMIT_BLOCK);
+        header->h_sequence = cpu_to_be32(commit_transaction->t_tid);
 
         JBUFFER_TRACE(descriptor, "write commit block");
         set_buffer_dirty(bh);
@@ -131,6 +129,8 @@ static int journal_write_commit_record(journal_t *journal,
                 barrier_done = 1;
         }
         ret = sync_dirty_buffer(bh);
+        if (barrier_done)
+                clear_buffer_ordered(bh);
         /* is it possible for another commit to fail at roughly
          * the same time as this one?  If so, we don't want to
          * trust the barrier flag in the super, but instead want
@@ -148,7 +148,6 @@ static int journal_write_commit_record(journal_t *journal,
                 spin_unlock(&journal->j_state_lock);
 
                 /* And try again, without the barrier */
-                clear_buffer_ordered(bh);
                 set_buffer_uptodate(bh);
                 set_buffer_dirty(bh);
                 ret = sync_dirty_buffer(bh);
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 5d14243499d4..3943a8905eb2 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1457,7 +1457,7 @@ static const char *journal_dev_name(journal_t *journal, char *buffer)
  * Aborts hard --- we mark the abort as occurred, but do _nothing_ else,
  * and don't attempt to make any other journal updates.
  */
-void __journal_abort_hard(journal_t *journal)
+static void __journal_abort_hard(journal_t *journal)
 {
         transaction_t *transaction;
         char b[BDEVNAME_SIZE];
diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c
index c5d9694b6a2f..2b8edf4d6eaa 100644
--- a/fs/jbd/recovery.c
+++ b/fs/jbd/recovery.c
@@ -354,7 +354,7 @@ static int do_one_pass(journal_t *journal,
                 struct buffer_head *    obh;
                 struct buffer_head *    nbh;
 
-                cond_resched();         /* We're under lock_kernel() */
+                cond_resched();
 
                 /* If we already know where to stop the log traversal,
                  * check right now that we haven't gone past the end of
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 4f302d279279..a8173081f831 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -136,18 +136,20 @@ static int journal_submit_commit_record(journal_t *journal,
 
         JBUFFER_TRACE(descriptor, "submit commit block");
         lock_buffer(bh);
-
+        get_bh(bh);
         set_buffer_dirty(bh);
         set_buffer_uptodate(bh);
         bh->b_end_io = journal_end_buffer_io_sync;
 
         if (journal->j_flags & JBD2_BARRIER &&
-                !JBD2_HAS_COMPAT_FEATURE(journal,
+                !JBD2_HAS_INCOMPAT_FEATURE(journal,
                                          JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
                 set_buffer_ordered(bh);
                 barrier_done = 1;
         }
         ret = submit_bh(WRITE, bh);
+        if (barrier_done)
+                clear_buffer_ordered(bh);
 
         /* is it possible for another commit to fail at roughly
          * the same time as this one?  If so, we don't want to
@@ -166,7 +168,6 @@ static int journal_submit_commit_record(journal_t *journal,
                 spin_unlock(&journal->j_state_lock);
 
                 /* And try again, without the barrier */
-                clear_buffer_ordered(bh);
                 set_buffer_uptodate(bh);
                 set_buffer_dirty(bh);
                 ret = submit_bh(WRITE, bh);
@@ -872,7 +873,8 @@ wait_for_iobuf:
                 if (err)
                         __jbd2_journal_abort_hard(journal);
         }
-        err = journal_wait_on_commit_record(cbh);
+        if (!err && !is_journal_aborted(journal))
+                err = journal_wait_on_commit_record(cbh);
 
         if (err)
                 jbd2_journal_abort(journal, err);
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 921680663fa2..146411387ada 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -397,7 +397,7 @@ static int do_one_pass(journal_t *journal,
                 struct buffer_head *    obh;
                 struct buffer_head *    nbh;
 
-                cond_resched();         /* We're under lock_kernel() */
+                cond_resched();
 
                 /* If we already know where to stop the log traversal,
                  * check right now that we haven't gone past the end of
@@ -641,7 +641,7 @@ static int do_one_pass(journal_t *journal,
                                 if (chksum_err) {
                                         info->end_transaction = next_commit_ID;
 
-                                        if (!JBD2_HAS_COMPAT_FEATURE(journal,
+                                        if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
                                            JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)){
                                                 printk(KERN_ERR
                                                        "JBD: Transaction %u "
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 77fc5838609c..4c80404a9aba 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -176,7 +176,7 @@ static void jffs2_iset_acl(struct inode *inode, struct posix_acl **i_acl, struct
         spin_unlock(&inode->i_lock);
 }
 
-struct posix_acl *jffs2_get_acl(struct inode *inode, int type)
+static struct posix_acl *jffs2_get_acl(struct inode *inode, int type)
 {
         struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
         struct posix_acl *acl;
@@ -345,8 +345,10 @@ int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode)
                 if (!clone)
                         return -ENOMEM;
                 rc = posix_acl_create_masq(clone, (mode_t *)i_mode);
-                if (rc < 0)
+                if (rc < 0) {
+                        posix_acl_release(clone);
                         return rc;
+                }
                 if (rc > 0)
                         jffs2_iset_acl(inode, &f->i_acl_access, clone);
 
diff --git a/fs/jffs2/acl.h b/fs/jffs2/acl.h
index 76c6ebd1acd9..0bb7f003fd80 100644
--- a/fs/jffs2/acl.h
+++ b/fs/jffs2/acl.h
@@ -28,7 +28,6 @@ struct jffs2_acl_header {
 
 #define JFFS2_ACL_NOT_CACHED ((void *)-1)
 
-extern struct posix_acl *jffs2_get_acl(struct inode *inode, int type);
 extern int jffs2_permission(struct inode *, int, struct nameidata *);
 extern int jffs2_acl_chmod(struct inode *);
 extern int jffs2_init_acl_pre(struct inode *, struct inode *, int *);
@@ -40,7 +39,6 @@ extern struct xattr_handler jffs2_acl_default_xattr_handler;
 
 #else
 
-#define jffs2_get_acl(inode, type)              (NULL)
 #define jffs2_permission                        (NULL)
 #define jffs2_acl_chmod(inode)                  (0)
 #define jffs2_init_acl_pre(dir_i,inode,mode)    (0)
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index 787e392ffd41..f948f7e6ec82 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -101,10 +101,10 @@ static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
                 ino = fd->ino;
         up(&dir_f->sem);
         if (ino) {
-                inode = iget(dir_i->i_sb, ino);
-                if (!inode) {
+                inode = jffs2_iget(dir_i->i_sb, ino);
+                if (IS_ERR(inode)) {
                         printk(KERN_WARNING "iget() failed for ino #%u\n", ino);
-                        return (ERR_PTR(-EIO));
+                        return ERR_CAST(inode);
                 }
         }
 
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index d2e06f7ea96f..e26ea78c7892 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -97,11 +97,7 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
         ri->gid = cpu_to_je16((ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid);
 
         if (ivalid & ATTR_MODE)
-                if (iattr->ia_mode & S_ISGID &&
-                    !in_group_p(je16_to_cpu(ri->gid)) && !capable(CAP_FSETID))
-                        ri->mode = cpu_to_jemode(iattr->ia_mode & ~S_ISGID);
-                else
-                        ri->mode = cpu_to_jemode(iattr->ia_mode);
+                ri->mode = cpu_to_jemode(iattr->ia_mode);
         else
                 ri->mode = cpu_to_jemode(inode->i_mode);
 
@@ -230,16 +226,23 @@ void jffs2_clear_inode (struct inode *inode)
         jffs2_do_clear_inode(c, f);
 }
 
-void jffs2_read_inode (struct inode *inode)
+struct inode *jffs2_iget(struct super_block *sb, unsigned long ino)
 {
         struct jffs2_inode_info *f;
         struct jffs2_sb_info *c;
         struct jffs2_raw_inode latest_node;
         union jffs2_device_node jdev;
+        struct inode *inode;
         dev_t rdev = 0;
         int ret;
 
-        D1(printk(KERN_DEBUG "jffs2_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
+        D1(printk(KERN_DEBUG "jffs2_iget(): ino == %lu\n", ino));
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
 
         f = JFFS2_INODE_INFO(inode);
         c = JFFS2_SB_INFO(inode->i_sb);
@@ -250,9 +253,9 @@ void jffs2_read_inode (struct inode *inode)
         ret = jffs2_do_read_inode(c, f, inode->i_ino, &latest_node);
 
         if (ret) {
-                make_bad_inode(inode);
                 up(&f->sem);
-                return;
+                iget_failed(inode);
+                return ERR_PTR(ret);
         }
         inode->i_mode = jemode_to_cpu(latest_node.mode);
         inode->i_uid = je16_to_cpu(latest_node.uid);
@@ -303,19 +306,14 @@ void jffs2_read_inode (struct inode *inode)
                 if (f->metadata->size != sizeof(jdev.old) &&
                     f->metadata->size != sizeof(jdev.new)) {
                         printk(KERN_NOTICE "Device node has strange size %d\n", f->metadata->size);
-                        up(&f->sem);
-                        jffs2_do_clear_inode(c, f);
-                        make_bad_inode(inode);
-                        return;
+                        goto error_io;
                 }
                 D1(printk(KERN_DEBUG "Reading device numbers from flash\n"));
-                if (jffs2_read_dnode(c, f, f->metadata, (char *)&jdev, 0, f->metadata->size) < 0) {
+                ret = jffs2_read_dnode(c, f, f->metadata, (char *)&jdev, 0, f->metadata->size);
+                if (ret < 0) {
                         /* Eep */
                         printk(KERN_NOTICE "Read device numbers for inode %lu failed\n", (unsigned long)inode->i_ino);
-                        up(&f->sem);
-                        jffs2_do_clear_inode(c, f);
-                        make_bad_inode(inode);
-                        return;
+                        goto error;
                 }
                 if (f->metadata->size == sizeof(jdev.old))
                         rdev = old_decode_dev(je16_to_cpu(jdev.old));
@@ -335,6 +333,16 @@ void jffs2_read_inode (struct inode *inode)
         up(&f->sem);
 
         D1(printk(KERN_DEBUG "jffs2_read_inode() returning\n"));
+        unlock_new_inode(inode);
+        return inode;
+
+error_io:
+        ret = -EIO;
+error:
+        up(&f->sem);
+        jffs2_do_clear_inode(c, f);
+        iget_failed(inode);
+        return ERR_PTR(ret);
 }
 
 void jffs2_dirty_inode(struct inode *inode)
@@ -522,15 +530,16 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
         if ((ret = jffs2_do_mount_fs(c)))
                 goto out_inohash;
 
-        ret = -EINVAL;
-
         D1(printk(KERN_DEBUG "jffs2_do_fill_super(): Getting root inode\n"));
-        root_i = iget(sb, 1);
-        if (is_bad_inode(root_i)) {
+        root_i = jffs2_iget(sb, 1);
+        if (IS_ERR(root_i)) {
                 D1(printk(KERN_WARNING "get root inode failed\n"));
-                goto out_root_i;
+                ret = PTR_ERR(root_i);
+                goto out_root;
         }
 
+        ret = -ENOMEM;
+
         D1(printk(KERN_DEBUG "jffs2_do_fill_super(): d_alloc_root()\n"));
         sb->s_root = d_alloc_root(root_i);
         if (!sb->s_root)
@@ -546,6 +555,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
 
  out_root_i:
         iput(root_i);
+out_root:
         jffs2_free_ino_caches(c);
         jffs2_free_raw_node_refs(c);
         if (jffs2_blocks_use_vmalloc(c))
@@ -615,9 +625,9 @@ struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
                    jffs2_do_unlink() would need the alloc_sem and we have it.
                    Just iget() it, and if read_inode() is necessary that's OK.
                 */
-                inode = iget(OFNI_BS_2SFFJ(c), inum);
-                if (!inode)
-                        return ERR_PTR(-ENOMEM);
+                inode = jffs2_iget(OFNI_BS_2SFFJ(c), inum);
+                if (IS_ERR(inode))
+                        return ERR_CAST(inode);
         }
         if (is_bad_inode(inode)) {
                 printk(KERN_NOTICE "Eep. read_inode() failed for ino #%u. nlink %d\n",
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c
index 4bf86088b3ae..87c6f555e1a0 100644
--- a/fs/jffs2/nodelist.c
+++ b/fs/jffs2/nodelist.c
@@ -32,15 +32,18 @@ void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new
                 if ((*prev)->nhash == new->nhash && !strcmp((*prev)->name, new->name)) {
                         /* Duplicate. Free one */
                         if (new->version < (*prev)->version) {
-                                dbg_dentlist("Eep! Marking new dirent node is obsolete, old is \"%s\", ino #%u\n",
+                                dbg_dentlist("Eep! Marking new dirent node obsolete, old is \"%s\", ino #%u\n",
                                         (*prev)->name, (*prev)->ino);
                                 jffs2_mark_node_obsolete(c, new->raw);
                                 jffs2_free_full_dirent(new);
                         } else {
-                                dbg_dentlist("marking old dirent \"%s\", ino #%u bsolete\n",
+                                dbg_dentlist("marking old dirent \"%s\", ino #%u obsolete\n",
                                         (*prev)->name, (*prev)->ino);
                                 new->next = (*prev)->next;
-                                jffs2_mark_node_obsolete(c, ((*prev)->raw));
+                                /* It may have been a 'placeholder' deletion dirent, 
+                                   if jffs2_can_mark_obsolete() (see jffs2_do_unlink()) */
+                                if ((*prev)->raw)
+                                        jffs2_mark_node_obsolete(c, ((*prev)->raw));
                                 jffs2_free_full_dirent(*prev);
                                 *prev = new;
                         }
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index bf64686cf098..1b10d2594092 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -175,7 +175,7 @@ extern const struct inode_operations jffs2_symlink_inode_operations;
 /* fs.c */
 int jffs2_setattr (struct dentry *, struct iattr *);
 int jffs2_do_setattr (struct inode *, struct iattr *);
-void jffs2_read_inode (struct inode *);
+struct inode *jffs2_iget(struct super_block *, unsigned long);
 void jffs2_clear_inode (struct inode *);
 void jffs2_dirty_inode(struct inode *inode);
 struct inode *jffs2_new_inode (struct inode *dir_i, int mode,
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 6c1ba3566f58..e512a93d6249 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -37,23 +37,24 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
 
         BUG_ON(tn->csize == 0);
 
-        if (!jffs2_is_writebuffered(c))
-                goto adj_acc;
-
         /* Calculate how many bytes were already checked */
         ofs = ref_offset(ref) + sizeof(struct jffs2_raw_inode);
-        len = ofs % c->wbuf_pagesize;
-        if (likely(len))
-                len = c->wbuf_pagesize - len;
-
-        if (len >= tn->csize) {
-                dbg_readinode("no need to check node at %#08x, data length %u, data starts at %#08x - it has already been checked.\n",
-                        ref_offset(ref), tn->csize, ofs);
-                goto adj_acc;
-        }
+        len = tn->csize;
+
+        if (jffs2_is_writebuffered(c)) {
+                int adj = ofs % c->wbuf_pagesize;
+                if (likely(adj))
+                        adj = c->wbuf_pagesize - adj;
+
+                if (adj >= tn->csize) {
+                        dbg_readinode("no need to check node at %#08x, data length %u, data starts at %#08x - it has already been checked.\n",
+                                      ref_offset(ref), tn->csize, ofs);
+                        goto adj_acc;
+                }
 
-        ofs += len;
-        len = tn->csize - len;
+                ofs += adj;
+                len -= adj;
+        }
 
         dbg_readinode("check node at %#08x, data length %u, partial CRC %#08x, correct CRC %#08x, data starts at %#08x, start checking from %#08x - %u bytes.\n",
                 ref_offset(ref), tn->csize, tn->partial_crc, tn->data_crc, ofs - len, ofs, len);
@@ -63,7 +64,7 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
          * adding and jffs2_flash_read_end() interface. */
         if (c->mtd->point) {
                 err = c->mtd->point(c->mtd, ofs, len, &retlen, &buffer);
-                if (!err && retlen < tn->csize) {
+                if (!err && retlen < len) {
                         JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize);
                         c->mtd->unpoint(c->mtd, buffer, ofs, retlen);
                 } else if (err)
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index ffa447511e6a..4677355996cc 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -65,7 +65,6 @@ static const struct super_operations jffs2_super_operations =
 {
         .alloc_inode =  jffs2_alloc_inode,
         .destroy_inode =jffs2_destroy_inode,
-        .read_inode =   jffs2_read_inode,
         .put_super =    jffs2_put_super,
         .write_super =  jffs2_write_super,
         .statfs =       jffs2_statfs,
diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c
index 147e2cbee9e4..776f13cbf2b5 100644
--- a/fs/jffs2/write.c
+++ b/fs/jffs2/write.c
@@ -177,7 +177,7 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2
                 void *hold_err = fn->raw;
                 /* Release the full_dnode which is now useless, and return */
                 jffs2_free_full_dnode(fn);
-                return ERR_PTR(PTR_ERR(hold_err));
+                return ERR_CAST(hold_err);
         }
         fn->ofs = je32_to_cpu(ri->offset);
         fn->size = je32_to_cpu(ri->dsize);
@@ -313,7 +313,7 @@ struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jff
                 void *hold_err = fd->raw;
                 /* Release the full_dirent which is now useless, and return */
                 jffs2_free_full_dirent(fd);
-                return ERR_PTR(PTR_ERR(hold_err));
+                return ERR_CAST(hold_err);
         }
 
         if (retried) {
@@ -582,7 +582,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
                 jffs2_add_fd_to_list(c, fd, &dir_f->dents);
                 up(&dir_f->sem);
         } else {
-                struct jffs2_full_dirent **prev = &dir_f->dents;
+                struct jffs2_full_dirent *fd = dir_f->dents;
                 uint32_t nhash = full_name_hash(name, namelen);
 
                 /* We don't actually want to reserve any space, but we do
@@ -590,21 +590,22 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
                 down(&c->alloc_sem);
                 down(&dir_f->sem);
 
-                while ((*prev) && (*prev)->nhash <= nhash) {
-                        if ((*prev)->nhash == nhash &&
-                            !memcmp((*prev)->name, name, namelen) &&
-                            !(*prev)->name[namelen]) {
-                                struct jffs2_full_dirent *this = *prev;
+                for (fd = dir_f->dents; fd; fd = fd->next) {
+                        if (fd->nhash == nhash &&
+                            !memcmp(fd->name, name, namelen) &&
+                            !fd->name[namelen]) {
 
                                 D1(printk(KERN_DEBUG "Marking old dirent node (ino #%u) @%08x obsolete\n",
-                                          this->ino, ref_offset(this->raw)));
-
-                                *prev = this->next;
-                                jffs2_mark_node_obsolete(c, (this->raw));
-                                jffs2_free_full_dirent(this);
+                                          fd->ino, ref_offset(fd->raw)));
+                                jffs2_mark_node_obsolete(c, fd->raw);
+                                /* We don't want to remove it from the list immediately,
+                                   because that screws up getdents()/seek() semantics even
+                                   more than they're screwed already. Turn it into a
+                                   node-less deletion dirent instead -- a placeholder */
+                                fd->raw = NULL;
+                                fd->ino = 0;
                                 break;
                         }
-                        prev = &((*prev)->next);
                 }
                 up(&dir_f->sem);
         }
@@ -630,7 +631,8 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
                                         D1(printk(KERN_DEBUG "Removing deletion dirent for \"%s\" from dir ino #%u\n",
                                                 fd->name, dead_f->inocache->ino));
                                 }
-                                jffs2_mark_node_obsolete(c, fd->raw);
+                                if (fd->raw)
+                                        jffs2_mark_node_obsolete(c, fd->raw);
                                 jffs2_free_full_dirent(fd);
                         }
                 }
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 87eb93694af7..7f6063acaa3b 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -112,5 +112,8 @@ const struct file_operations jfs_file_operations = {
         .splice_write   = generic_file_splice_write,
         .fsync          = jfs_fsync,
         .release        = jfs_release,
-        .ioctl          = jfs_ioctl,
+        .unlocked_ioctl = jfs_ioctl,
+#ifdef CONFIG_COMPAT
+        .compat_ioctl   = jfs_compat_ioctl,
+#endif
 };
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 4672013802e1..210339784b56 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -31,11 +31,21 @@
 #include "jfs_debug.h"
 
 
-void jfs_read_inode(struct inode *inode)
+struct inode *jfs_iget(struct super_block *sb, unsigned long ino)
 {
-        if (diRead(inode)) {
-                make_bad_inode(inode);
-                return;
+        struct inode *inode;
+        int ret;
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        ret = diRead(inode);
+        if (ret < 0) {
+                iget_failed(inode);
+                return ERR_PTR(ret);
         }
 
         if (S_ISREG(inode->i_mode)) {
@@ -55,6 +65,8 @@ void jfs_read_inode(struct inode *inode)
                 inode->i_op = &jfs_file_inode_operations;
                 init_special_inode(inode, inode->i_mode, inode->i_rdev);
         }
+        unlock_new_inode(inode);
+        return inode;
 }
 
 /*
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index dfda12a073e1..a1f8e375ad21 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -51,9 +51,9 @@ static long jfs_map_ext2(unsigned long flags, int from)
 }
 
 
-int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
-                unsigned long arg)
+long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
+        struct inode *inode = filp->f_dentry->d_inode;
         struct jfs_inode_info *jfs_inode = JFS_IP(inode);
         unsigned int flags;
 
@@ -82,6 +82,10 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
                 /* Is it quota file? Do not allow user to mess with it */
                 if (IS_NOQUOTA(inode))
                         return -EPERM;
+
+                /* Lock against other parallel changes of flags */
+                mutex_lock(&inode->i_mutex);
+
                 jfs_get_inode_flags(jfs_inode);
                 oldflags = jfs_inode->mode2;
 
@@ -92,8 +96,10 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
                 if ((oldflags & JFS_IMMUTABLE_FL) ||
                         ((flags ^ oldflags) &
                         (JFS_APPEND_FL | JFS_IMMUTABLE_FL))) {
-                        if (!capable(CAP_LINUX_IMMUTABLE))
+                        if (!capable(CAP_LINUX_IMMUTABLE)) {
+                                mutex_unlock(&inode->i_mutex);
                                 return -EPERM;
+                        }
                 }
 
                 flags = flags & JFS_FL_USER_MODIFIABLE;
@@ -101,6 +107,7 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
                 jfs_inode->mode2 = flags;
 
                 jfs_set_inode_flags(inode);
+                mutex_unlock(&inode->i_mutex);
                 inode->i_ctime = CURRENT_TIME_SEC;
                 mark_inode_dirty(inode);
                 return 0;
@@ -110,3 +117,21 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
         }
 }
 
+#ifdef CONFIG_COMPAT
+long jfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+        /* While these ioctl numbers defined with 'long' and have different
+         * numbers than the 64bit ABI,
+         * the actual implementation only deals with ints and is compatible.
+         */
+        switch (cmd) {
+        case JFS_IOC_GETFLAGS32:
+                cmd = JFS_IOC_GETFLAGS;
+                break;
+        case JFS_IOC_SETFLAGS32:
+                cmd = JFS_IOC_SETFLAGS;
+                break;
+        }
+        return jfs_ioctl(filp, cmd, arg);
+}
+#endif
diff --git a/fs/jfs/jfs_dinode.h b/fs/jfs/jfs_dinode.h
index c387540d3425..395c4c0d0f06 100644
--- a/fs/jfs/jfs_dinode.h
+++ b/fs/jfs/jfs_dinode.h
@@ -170,5 +170,7 @@ struct dinode {
 #define JFS_IOC_GETFLAGS        _IOR('f', 1, long)
 #define JFS_IOC_SETFLAGS        _IOW('f', 2, long)
 
+#define JFS_IOC_GETFLAGS32      _IOR('f', 1, int)
+#define JFS_IOC_SETFLAGS32      _IOW('f', 2, int)
 
 #endif /*_H_JFS_DINODE */
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 8e2cf2cde185..adb2fafcc544 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -22,9 +22,9 @@ struct fid;
 
 extern struct inode *ialloc(struct inode *, umode_t);
 extern int jfs_fsync(struct file *, struct dentry *, int);
-extern int jfs_ioctl(struct inode *, struct file *,
-                        unsigned int, unsigned long);
-extern void jfs_read_inode(struct inode *);
+extern long jfs_ioctl(struct file *, unsigned int, unsigned long);
+extern long jfs_compat_ioctl(struct file *, unsigned int, unsigned long);
+extern struct inode *jfs_iget(struct super_block *, unsigned long);
 extern int jfs_commit_inode(struct inode *, int);
 extern int jfs_write_inode(struct inode*, int);
 extern void jfs_delete_inode(struct inode *);
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index f8718de3505e..0ba6778edaa2 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1462,12 +1462,10 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
                 }
         }
 
-        ip = iget(dip->i_sb, inum);
-        if (ip == NULL || is_bad_inode(ip)) {
+        ip = jfs_iget(dip->i_sb, inum);
+        if (IS_ERR(ip)) {
                 jfs_err("jfs_lookup: iget failed on inum %d", (uint) inum);
-                if (ip)
-                        iput(ip);
-                return ERR_PTR(-EACCES);
+                return ERR_CAST(ip);
         }
 
         dentry = d_splice_alias(ip, dentry);
@@ -1485,12 +1483,11 @@ static struct inode *jfs_nfs_get_inode(struct super_block *sb,
 
         if (ino == 0)
                 return ERR_PTR(-ESTALE);
-        inode = iget(sb, ino);
-        if (inode == NULL)
-                return ERR_PTR(-ENOMEM);
+        inode = jfs_iget(sb, ino);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
 
-        if (is_bad_inode(inode) ||
-            (generation && inode->i_generation != generation)) {
+        if (generation && inode->i_generation != generation) {
                 iput(inode);
                 return ERR_PTR(-ESTALE);
         }
@@ -1521,17 +1518,14 @@ struct dentry *jfs_get_parent(struct dentry *dentry)
 
         parent_ino =
                 le32_to_cpu(JFS_IP(dentry->d_inode)->i_dtroot.header.idotdot);
-        inode = iget(sb, parent_ino);
-        if (inode) {
-                if (is_bad_inode(inode)) {
+        inode = jfs_iget(sb, parent_ino);
+        if (IS_ERR(inode)) {
+                parent = ERR_CAST(inode);
+        } else {
+                parent = d_alloc_anon(inode);
+                if (!parent) {
+                        parent = ERR_PTR(-ENOMEM);
                         iput(inode);
-                        parent = ERR_PTR(-EACCES);
-                } else {
-                        parent = d_alloc_anon(inode);
-                        if (!parent) {
-                                parent = ERR_PTR(-ENOMEM);
-                                iput(inode);
-                        }
                 }
         }
 
@@ -1562,7 +1556,10 @@ const struct file_operations jfs_dir_operations = {
         .read           = generic_read_dir,
         .readdir        = jfs_readdir,
         .fsync          = jfs_fsync,
-        .ioctl          = jfs_ioctl,
+        .unlocked_ioctl = jfs_ioctl,
+#ifdef CONFIG_COMPAT
+        .compat_ioctl   = jfs_compat_ioctl,
+#endif
 };
 
 static int jfs_ci_hash(struct dentry *dir, struct qstr *this)
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 70a14001c98f..50ea65451732 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -414,7 +414,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
         struct inode *inode;
         int rc;
         s64 newLVSize = 0;
-        int flag;
+        int flag, ret = -EINVAL;
 
         jfs_info("In jfs_read_super: s_flags=0x%lx", sb->s_flags);
 
@@ -461,8 +461,10 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
          * Initialize direct-mapping inode/address-space
          */
         inode = new_inode(sb);
-        if (inode == NULL)
+        if (inode == NULL) {
+                ret = -ENOMEM;
                 goto out_kfree;
+        }
         inode->i_ino = 0;
         inode->i_nlink = 1;
         inode->i_size = sb->s_bdev->bd_inode->i_size;
@@ -494,9 +496,11 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 
         sb->s_magic = JFS_SUPER_MAGIC;
 
-        inode = iget(sb, ROOT_I);
-        if (!inode || is_bad_inode(inode))
+        inode = jfs_iget(sb, ROOT_I);
+        if (IS_ERR(inode)) {
+                ret = PTR_ERR(inode);
                 goto out_no_root;
+        }
         sb->s_root = d_alloc_root(inode);
         if (!sb->s_root)
                 goto out_no_root;
@@ -536,7 +540,7 @@ out_kfree:
         if (sbi->nls_tab)
                 unload_nls(sbi->nls_tab);
         kfree(sbi);
-        return -EINVAL;
+        return ret;
 }
 
 static void jfs_write_super_lockfs(struct super_block *sb)
@@ -726,7 +730,6 @@ out:
 static const struct super_operations jfs_super_operations = {
         .alloc_inode    = jfs_alloc_inode,
         .destroy_inode  = jfs_destroy_inode,
-        .read_inode     = jfs_read_inode,
         .dirty_inode    = jfs_dirty_inode,
         .write_inode    = jfs_write_inode,
         .delete_inode   = jfs_delete_inode,
diff --git a/fs/libfs.c b/fs/libfs.c
index 6e68b700958d..b004dfadd891 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -341,13 +341,10 @@ int simple_prepare_write(struct file *file, struct page *page,
                         unsigned from, unsigned to)
 {
         if (!PageUptodate(page)) {
-                if (to - from != PAGE_CACHE_SIZE) {
-                        void *kaddr = kmap_atomic(page, KM_USER0);
-                        memset(kaddr, 0, from);
-                        memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
-                        flush_dcache_page(page);
-                        kunmap_atomic(kaddr, KM_USER0);
-                }
+                if (to - from != PAGE_CACHE_SIZE)
+                        zero_user_segments(page,
+                                0, from,
+                                to, PAGE_CACHE_SIZE);
         }
         return 0;
 }
@@ -586,8 +583,8 @@ int simple_transaction_release(struct inode *inode, struct file *file)
 /* Simple attribute files */
 
 struct simple_attr {
-        u64 (*get)(void *);
-        void (*set)(void *, u64);
+        int (*get)(void *, u64 *);
+        int (*set)(void *, u64);
         char get_buf[24];       /* enough to store a u64 and "\n\0" */
         char set_buf[24];
         void *data;
@@ -598,7 +595,7 @@ struct simple_attr {
 /* simple_attr_open is called by an actual attribute open file operation
  * to set the attribute specific access operations. */
 int simple_attr_open(struct inode *inode, struct file *file,
-                     u64 (*get)(void *), void (*set)(void *, u64),
+                     int (*get)(void *, u64 *), int (*set)(void *, u64),
                      const char *fmt)
 {
         struct simple_attr *attr;
@@ -618,7 +615,7 @@ int simple_attr_open(struct inode *inode, struct file *file,
         return nonseekable_open(inode, file);
 }
 
-int simple_attr_close(struct inode *inode, struct file *file)
+int simple_attr_release(struct inode *inode, struct file *file)
 {
         kfree(file->private_data);
         return 0;
@@ -637,15 +634,24 @@ ssize_t simple_attr_read(struct file *file, char __user *buf,
         if (!attr->get)
                 return -EACCES;
 
-        mutex_lock(&attr->mutex);
-        if (*ppos) /* continued read */
+        ret = mutex_lock_interruptible(&attr->mutex);
+        if (ret)
+                return ret;
+
+        if (*ppos) {            /* continued read */
                 size = strlen(attr->get_buf);
-        else      /* first read */
+        } else {                /* first read */
+                u64 val;
+                ret = attr->get(attr->data, &val);
+                if (ret)
+                        goto out;
+
                 size = scnprintf(attr->get_buf, sizeof(attr->get_buf),
-                                 attr->fmt,
-                                 (unsigned long long)attr->get(attr->data));
+                                 attr->fmt, (unsigned long long)val);
+        }
 
         ret = simple_read_from_buffer(buf, len, ppos, attr->get_buf, size);
+out:
         mutex_unlock(&attr->mutex);
         return ret;
 }
@@ -660,11 +666,13 @@ ssize_t simple_attr_write(struct file *file, const char __user *buf,
         ssize_t ret;
 
         attr = file->private_data;
-
         if (!attr->set)
                 return -EACCES;
 
-        mutex_lock(&attr->mutex);
+        ret = mutex_lock_interruptible(&attr->mutex);
+        if (ret)
+                return ret;
+
         ret = -EFAULT;
         size = min(sizeof(attr->set_buf) - 1, len);
         if (copy_from_user(attr->set_buf, buf, size))
@@ -796,6 +804,6 @@ EXPORT_SYMBOL(simple_transaction_get);
 EXPORT_SYMBOL(simple_transaction_read);
 EXPORT_SYMBOL(simple_transaction_release);
 EXPORT_SYMBOL_GPL(simple_attr_open);
-EXPORT_SYMBOL_GPL(simple_attr_close);
+EXPORT_SYMBOL_GPL(simple_attr_release);
 EXPORT_SYMBOL_GPL(simple_attr_read);
 EXPORT_SYMBOL_GPL(simple_attr_write);
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index ca6b16fc3101..f1ef49fff118 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -243,10 +243,18 @@ nlm_bind_host(struct nlm_host *host)
                         .program        = &nlm_program,
                         .version        = host->h_version,
                         .authflavor     = RPC_AUTH_UNIX,
-                        .flags          = (RPC_CLNT_CREATE_HARDRTRY |
+                        .flags          = (RPC_CLNT_CREATE_NOPING |
                                            RPC_CLNT_CREATE_AUTOBIND),
                 };
 
+                /*
+                 * lockd retries server side blocks automatically so we want
+                 * those to be soft RPC calls. Client side calls need to be
+                 * hard RPC tasks.
+                 */
+                if (!host->h_server)
+                        args.flags |= RPC_CLNT_CREATE_HARDRTRY;
+
                 clnt = rpc_create(&args);
                 if (!IS_ERR(clnt))
                         host->h_rpcclnt = clnt;
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 2f4d8fa66689..fe9bdb4a220c 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -763,11 +763,20 @@ callback:
         dprintk("lockd: GRANTing blocked lock.\n");
         block->b_granted = 1;
 
-        /* Schedule next grant callback in 30 seconds */
-        nlmsvc_insert_block(block, 30 * HZ);
+        /* keep block on the list, but don't reattempt until the RPC
+         * completes or the submission fails
+         */
+        nlmsvc_insert_block(block, NLM_NEVER);
+
+        /* Call the client -- use a soft RPC task since nlmsvc_retry_blocked
+         * will queue up a new one if this one times out
+         */
+        error = nlm_async_call(block->b_call, NLMPROC_GRANTED_MSG,
+                                &nlmsvc_grant_ops);
 
-        /* Call the client */
-        nlm_async_call(block->b_call, NLMPROC_GRANTED_MSG, &nlmsvc_grant_ops);
+        /* RPC submission failed, wait a bit and retry */
+        if (error < 0)
+                nlmsvc_insert_block(block, 10 * HZ);
 }
 
 /*
@@ -786,6 +795,17 @@ static void nlmsvc_grant_callback(struct rpc_task *task, void *data)
 
         dprintk("lockd: GRANT_MSG RPC callback\n");
 
+        /* if the block is not on a list at this point then it has
+         * been invalidated. Don't try to requeue it.
+         *
+         * FIXME: it's possible that the block is removed from the list
+         * after this check but before the nlmsvc_insert_block. In that
+         * case it will be added back. Perhaps we need better locking
+         * for nlm_blocked?
+         */
+        if (list_empty(&block->b_list))
+                return;
+
         /* Technically, we should down the file semaphore here. Since we
          * move the block towards the head of the queue only, no harm
          * can be done, though. */
diff --git a/fs/locks.c b/fs/locks.c
index 49354b9c7dc1..f36f0e61558d 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -658,8 +658,7 @@ posix_test_lock(struct file *filp, struct file_lock *fl)
         if (cfl) {
                 __locks_copy_lock(fl, cfl);
                 if (cfl->fl_nspid)
-                        fl->fl_pid = pid_nr_ns(cfl->fl_nspid,
-                                                task_active_pid_ns(current));
+                        fl->fl_pid = pid_vnr(cfl->fl_nspid);
         } else
                 fl->fl_type = F_UNLCK;
         unlock_kernel();
@@ -2084,7 +2083,7 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
         unsigned int fl_pid;
 
         if (fl->fl_nspid)
-                fl_pid = pid_nr_ns(fl->fl_nspid, task_active_pid_ns(current));
+                fl_pid = pid_vnr(fl->fl_nspid);
         else
                 fl_pid = fl->fl_pid;
 
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index bf4cd316af81..84f6242ba6fc 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -18,7 +18,6 @@
 #include <linux/highuid.h>
 #include <linux/vfs.h>
 
-static void minix_read_inode(struct inode * inode);
 static int minix_write_inode(struct inode * inode, int wait);
 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf);
 static int minix_remount (struct super_block * sb, int * flags, char * data);
@@ -96,7 +95,6 @@ static void destroy_inodecache(void)
 static const struct super_operations minix_sops = {
         .alloc_inode    = minix_alloc_inode,
         .destroy_inode  = minix_destroy_inode,
-        .read_inode     = minix_read_inode,
         .write_inode    = minix_write_inode,
         .delete_inode   = minix_delete_inode,
         .put_super      = minix_put_super,
@@ -149,6 +147,7 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
         unsigned long i, block;
         struct inode *root_inode;
         struct minix_sb_info *sbi;
+        int ret = -EINVAL;
 
         sbi = kzalloc(sizeof(struct minix_sb_info), GFP_KERNEL);
         if (!sbi)
@@ -246,10 +245,13 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
 
         /* set up enough so that it can read an inode */
         s->s_op = &minix_sops;
-        root_inode = iget(s, MINIX_ROOT_INO);
-        if (!root_inode || is_bad_inode(root_inode))
+        root_inode = minix_iget(s, MINIX_ROOT_INO);
+        if (IS_ERR(root_inode)) {
+                ret = PTR_ERR(root_inode);
                 goto out_no_root;
+        }
 
+        ret = -ENOMEM;
         s->s_root = d_alloc_root(root_inode);
         if (!s->s_root)
                 goto out_iput;
@@ -290,6 +292,7 @@ out_freemap:
         goto out_release;
 
 out_no_map:
+        ret = -ENOMEM;
         if (!silent)
                 printk("MINIX-fs: can't allocate map\n");
         goto out_release;
@@ -316,7 +319,7 @@ out_bad_sb:
 out:
         s->s_fs_info = NULL;
         kfree(sbi);
-        return -EINVAL;
+        return ret;
 }
 
 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -409,7 +412,7 @@ void minix_set_inode(struct inode *inode, dev_t rdev)
 /*
  * The minix V1 function to read an inode.
  */
-static void V1_minix_read_inode(struct inode * inode)
+static struct inode *V1_minix_iget(struct inode *inode)
 {
         struct buffer_head * bh;
         struct minix_inode * raw_inode;
@@ -418,8 +421,8 @@ static void V1_minix_read_inode(struct inode * inode)
 
         raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh);
         if (!raw_inode) {
-                make_bad_inode(inode);
-                return;
+                iget_failed(inode);
+                return ERR_PTR(-EIO);
         }
         inode->i_mode = raw_inode->i_mode;
         inode->i_uid = (uid_t)raw_inode->i_uid;
@@ -435,12 +438,14 @@ static void V1_minix_read_inode(struct inode * inode)
                 minix_inode->u.i1_data[i] = raw_inode->i_zone[i];
         minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
         brelse(bh);
+        unlock_new_inode(inode);
+        return inode;
 }
 
 /*
  * The minix V2 function to read an inode.
  */
-static void V2_minix_read_inode(struct inode * inode)
+static struct inode *V2_minix_iget(struct inode *inode)
 {
         struct buffer_head * bh;
         struct minix2_inode * raw_inode;
@@ -449,8 +454,8 @@ static void V2_minix_read_inode(struct inode * inode)
 
         raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
         if (!raw_inode) {
-                make_bad_inode(inode);
-                return;
+                iget_failed(inode);
+                return ERR_PTR(-EIO);
         }
         inode->i_mode = raw_inode->i_mode;
         inode->i_uid = (uid_t)raw_inode->i_uid;
@@ -468,17 +473,27 @@ static void V2_minix_read_inode(struct inode * inode)
                 minix_inode->u.i2_data[i] = raw_inode->i_zone[i];
         minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
         brelse(bh);
+        unlock_new_inode(inode);
+        return inode;
 }
 
 /*
  * The global function to read an inode.
  */
-static void minix_read_inode(struct inode * inode)
+struct inode *minix_iget(struct super_block *sb, unsigned long ino)
 {
+        struct inode *inode;
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
         if (INODE_VERSION(inode) == MINIX_V1)
-                V1_minix_read_inode(inode);
+                return V1_minix_iget(inode);
         else
-                V2_minix_read_inode(inode);
+                return V2_minix_iget(inode);
 }
 
 /*
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index ac5d3a75cb0d..326edfe96108 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -45,6 +45,7 @@ struct minix_sb_info {
         unsigned short s_version;
 };
 
+extern struct inode *minix_iget(struct super_block *, unsigned long);
 extern struct minix_inode * minix_V1_raw_inode(struct super_block *, ino_t, struct buffer_head **);
 extern struct minix2_inode * minix_V2_raw_inode(struct super_block *, ino_t, struct buffer_head **);
 extern struct inode * minix_new_inode(const struct inode * dir, int * error);
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index f4aa7a939040..102241bc9c79 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -54,10 +54,9 @@ static struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry, st
 
         ino = minix_inode_by_name(dentry);
         if (ino) {
-                inode = iget(dir->i_sb, ino);
- 
-                if (!inode)
-                        return ERR_PTR(-EACCES);
+                inode = minix_iget(dir->i_sb, ino);
+                if (IS_ERR(inode))
+                        return ERR_CAST(inode);
         }
         d_add(dentry, inode);
         return NULL;
diff --git a/fs/mpage.c b/fs/mpage.c
index d54f8f897224..5df564366f36 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -276,9 +276,7 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
         }
 
         if (first_hole != blocks_per_page) {
-                zero_user_page(page, first_hole << blkbits,
-                                PAGE_CACHE_SIZE - (first_hole << blkbits),
-                                KM_USER0);
+                zero_user_segment(page, first_hole << blkbits, PAGE_CACHE_SIZE);
                 if (first_hole == 0) {
                         SetPageUptodate(page);
                         unlock_page(page);
@@ -571,8 +569,7 @@ page_is_mapped:
 
                 if (page->index > end_index || !offset)
                         goto confused;
-                zero_user_page(page, offset, PAGE_CACHE_SIZE - offset,
-                                KM_USER0);
+                zero_user_segment(page, offset, PAGE_CACHE_SIZE);
         }
 
         /*
diff --git a/fs/namei.c b/fs/namei.c
index 73e2e665817a..941c8e8228c0 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -106,7 +106,7 @@
  * any extra contention...
  */
 
-static int fastcall link_path_walk(const char *name, struct nameidata *nd);
+static int link_path_walk(const char *name, struct nameidata *nd);
 
 /* In order to reduce some races, while at the same time doing additional
  * checking and hopefully speeding things up, we copy filenames to the
@@ -231,7 +231,7 @@ int permission(struct inode *inode, int mask, struct nameidata *nd)
         struct vfsmount *mnt = NULL;
 
         if (nd)
-                mnt = nd->mnt;
+                mnt = nd->path.mnt;
 
         if (mask & MAY_WRITE) {
                 umode_t mode = inode->i_mode;
@@ -296,7 +296,7 @@ int permission(struct inode *inode, int mask, struct nameidata *nd)
  */
 int vfs_permission(struct nameidata *nd, int mask)
 {
-        return permission(nd->dentry->d_inode, mask, nd);
+        return permission(nd->path.dentry->d_inode, mask, nd);
 }
 
 /**
@@ -362,21 +362,31 @@ int deny_write_access(struct file * file)
         return 0;
 }
 
-void path_release(struct nameidata *nd)
+/**
+ * path_get - get a reference to a path
+ * @path: path to get the reference to
+ *
+ * Given a path increment the reference count to the dentry and the vfsmount.
+ */
+void path_get(struct path *path)
 {
-        dput(nd->dentry);
-        mntput(nd->mnt);
+        mntget(path->mnt);
+        dget(path->dentry);
 }
+EXPORT_SYMBOL(path_get);
 
-/*
- * umount() mustn't call path_release()/mntput() as that would clear
- * mnt_expiry_mark
+/**
+ * path_put - put a reference to a path
+ * @path: path to put the reference to
+ *
+ * Given a path decrement the reference count to the dentry and the vfsmount.
  */
-void path_release_on_umount(struct nameidata *nd)
+void path_put(struct path *path)
 {
-        dput(nd->dentry);
-        mntput_no_expire(nd->mnt);
+        dput(path->dentry);
+        mntput(path->mnt);
 }
+EXPORT_SYMBOL(path_put);
 
 /**
  * release_open_intent - free up open intent resources
@@ -539,16 +549,16 @@ walk_init_root(const char *name, struct nameidata *nd)
         struct fs_struct *fs = current->fs;
 
         read_lock(&fs->lock);
-        if (fs->altroot && !(nd->flags & LOOKUP_NOALT)) {
-                nd->mnt = mntget(fs->altrootmnt);
-                nd->dentry = dget(fs->altroot);
+        if (fs->altroot.dentry && !(nd->flags & LOOKUP_NOALT)) {
+                nd->path = fs->altroot;
+                path_get(&fs->altroot);
                 read_unlock(&fs->lock);
                 if (__emul_lookup_dentry(name,nd))
                         return 0;
                 read_lock(&fs->lock);
         }
-        nd->mnt = mntget(fs->rootmnt);
-        nd->dentry = dget(fs->root);
+        nd->path = fs->root;
+        path_get(&fs->root);
         read_unlock(&fs->lock);
         return 1;
 }
@@ -561,7 +571,7 @@ static __always_inline int __vfs_follow_link(struct nameidata *nd, const char *l
                 goto fail;
 
         if (*link == '/') {
-                path_release(nd);
+                path_put(&nd->path);
                 if (!walk_init_root(link, nd))
                         /* weird __emul_prefix() stuff did it */
                         goto out;
@@ -577,31 +587,31 @@ out:
          */
         name = __getname();
         if (unlikely(!name)) {
-                path_release(nd);
+                path_put(&nd->path);
                 return -ENOMEM;
         }
         strcpy(name, nd->last.name);
         nd->last.name = name;
         return 0;
 fail:
-        path_release(nd);
+        path_put(&nd->path);
         return PTR_ERR(link);
 }
 
-static inline void dput_path(struct path *path, struct nameidata *nd)
+static void path_put_conditional(struct path *path, struct nameidata *nd)
 {
         dput(path->dentry);
-        if (path->mnt != nd->mnt)
+        if (path->mnt != nd->path.mnt)
                 mntput(path->mnt);
 }
 
 static inline void path_to_nameidata(struct path *path, struct nameidata *nd)
 {
-        dput(nd->dentry);
-        if (nd->mnt != path->mnt)
-                mntput(nd->mnt);
-        nd->mnt = path->mnt;
-        nd->dentry = path->dentry;
+        dput(nd->path.dentry);
+        if (nd->path.mnt != path->mnt)
+                mntput(nd->path.mnt);
+        nd->path.mnt = path->mnt;
+        nd->path.dentry = path->dentry;
 }
 
 static __always_inline int __do_follow_link(struct path *path, struct nameidata *nd)
@@ -613,7 +623,7 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata
         touch_atime(path->mnt, dentry);
         nd_set_link(nd, NULL);
 
-        if (path->mnt != nd->mnt) {
+        if (path->mnt != nd->path.mnt) {
                 path_to_nameidata(path, nd);
                 dget(dentry);
         }
@@ -628,8 +638,7 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata
                 if (dentry->d_inode->i_op->put_link)
                         dentry->d_inode->i_op->put_link(dentry, nd, cookie);
         }
-        dput(dentry);
-        mntput(path->mnt);
+        path_put(path);
 
         return error;
 }
@@ -661,8 +670,8 @@ static inline int do_follow_link(struct path *path, struct nameidata *nd)
         nd->depth--;
         return err;
 loop:
-        dput_path(path, nd);
-        path_release(nd);
+        path_put_conditional(path, nd);
+        path_put(&nd->path);
         return err;
 }
 
@@ -743,37 +752,37 @@ static __always_inline void follow_dotdot(struct nameidata *nd)
 
         while(1) {
                 struct vfsmount *parent;
-                struct dentry *old = nd->dentry;
+                struct dentry *old = nd->path.dentry;
 
                 read_lock(&fs->lock);
-                if (nd->dentry == fs->root &&
-                    nd->mnt == fs->rootmnt) {
+                if (nd->path.dentry == fs->root.dentry &&
+                    nd->path.mnt == fs->root.mnt) {
                         read_unlock(&fs->lock);
                         break;
                 }
                 read_unlock(&fs->lock);
                 spin_lock(&dcache_lock);
-                if (nd->dentry != nd->mnt->mnt_root) {
-                        nd->dentry = dget(nd->dentry->d_parent);
+                if (nd->path.dentry != nd->path.mnt->mnt_root) {
+                        nd->path.dentry = dget(nd->path.dentry->d_parent);
                         spin_unlock(&dcache_lock);
                         dput(old);
                         break;
                 }
                 spin_unlock(&dcache_lock);
                 spin_lock(&vfsmount_lock);
-                parent = nd->mnt->mnt_parent;
-                if (parent == nd->mnt) {
+                parent = nd->path.mnt->mnt_parent;
+                if (parent == nd->path.mnt) {
                         spin_unlock(&vfsmount_lock);
                         break;
                 }
                 mntget(parent);
-                nd->dentry = dget(nd->mnt->mnt_mountpoint);
+                nd->path.dentry = dget(nd->path.mnt->mnt_mountpoint);
                 spin_unlock(&vfsmount_lock);
                 dput(old);
-                mntput(nd->mnt);
-                nd->mnt = parent;
+                mntput(nd->path.mnt);
+                nd->path.mnt = parent;
         }
-        follow_mount(&nd->mnt, &nd->dentry);
+        follow_mount(&nd->path.mnt, &nd->path.dentry);
 }
 
 /*
@@ -784,8 +793,8 @@ static __always_inline void follow_dotdot(struct nameidata *nd)
 static int do_lookup(struct nameidata *nd, struct qstr *name,
                      struct path *path)
 {
-        struct vfsmount *mnt = nd->mnt;
-        struct dentry *dentry = __d_lookup(nd->dentry, name);
+        struct vfsmount *mnt = nd->path.mnt;
+        struct dentry *dentry = __d_lookup(nd->path.dentry, name);
 
         if (!dentry)
                 goto need_lookup;
@@ -798,7 +807,7 @@ done:
         return 0;
 
 need_lookup:
-        dentry = real_lookup(nd->dentry, name, nd);
+        dentry = real_lookup(nd->path.dentry, name, nd);
         if (IS_ERR(dentry))
                 goto fail;
         goto done;
@@ -823,7 +832,7 @@ fail:
  * Returns 0 and nd will have valid dentry and mnt on success.
  * Returns error and drops reference to input namei data on failure.
  */
-static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
+static int __link_path_walk(const char *name, struct nameidata *nd)
 {
         struct path next;
         struct inode *inode;
@@ -835,7 +844,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
         if (!*name)
                 goto return_reval;
 
-        inode = nd->dentry->d_inode;
+        inode = nd->path.dentry->d_inode;
         if (nd->depth)
                 lookup_flags = LOOKUP_FOLLOW | (nd->flags & LOOKUP_CONTINUE);
 
@@ -883,7 +892,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
                                 if (this.name[1] != '.')
                                         break;
                                 follow_dotdot(nd);
-                                inode = nd->dentry->d_inode;
+                                inode = nd->path.dentry->d_inode;
                                 /* fallthrough */
                         case 1:
                                 continue;
@@ -892,8 +901,9 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
                  * See if the low-level filesystem might want
                  * to use its own hash..
                  */
-                if (nd->dentry->d_op && nd->dentry->d_op->d_hash) {
-                        err = nd->dentry->d_op->d_hash(nd->dentry, &this);
+                if (nd->path.dentry->d_op && nd->path.dentry->d_op->d_hash) {
+                        err = nd->path.dentry->d_op->d_hash(nd->path.dentry,
+                                                            &this);
                         if (err < 0)
                                 break;
                 }
@@ -915,7 +925,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
                         if (err)
                                 goto return_err;
                         err = -ENOENT;
-                        inode = nd->dentry->d_inode;
+                        inode = nd->path.dentry->d_inode;
                         if (!inode)
                                 break;
                         err = -ENOTDIR; 
@@ -943,13 +953,14 @@ last_component:
                                 if (this.name[1] != '.')
                                         break;
                                 follow_dotdot(nd);
-                                inode = nd->dentry->d_inode;
+                                inode = nd->path.dentry->d_inode;
                                 /* fallthrough */
                         case 1:
                                 goto return_reval;
                 }
-                if (nd->dentry->d_op && nd->dentry->d_op->d_hash) {
-                        err = nd->dentry->d_op->d_hash(nd->dentry, &this);
+                if (nd->path.dentry->d_op && nd->path.dentry->d_op->d_hash) {
+                        err = nd->path.dentry->d_op->d_hash(nd->path.dentry,
+                                                            &this);
                         if (err < 0)
                                 break;
                 }
@@ -962,7 +973,7 @@ last_component:
                         err = do_follow_link(&next, nd);
                         if (err)
                                 goto return_err;
-                        inode = nd->dentry->d_inode;
+                        inode = nd->path.dentry->d_inode;
                 } else
                         path_to_nameidata(&next, nd);
                 err = -ENOENT;
@@ -990,20 +1001,21 @@ return_reval:
                  * We bypassed the ordinary revalidation routines.
                  * We may need to check the cached dentry for staleness.
                  */
-                if (nd->dentry && nd->dentry->d_sb &&
-                    (nd->dentry->d_sb->s_type->fs_flags & FS_REVAL_DOT)) {
+                if (nd->path.dentry && nd->path.dentry->d_sb &&
+                    (nd->path.dentry->d_sb->s_type->fs_flags & FS_REVAL_DOT)) {
                         err = -ESTALE;
                         /* Note: we do not d_invalidate() */
-                        if (!nd->dentry->d_op->d_revalidate(nd->dentry, nd))
+                        if (!nd->path.dentry->d_op->d_revalidate(
+                                        nd->path.dentry, nd))
                                 break;
                 }
 return_base:
                 return 0;
 out_dput:
-                dput_path(&next, nd);
+                path_put_conditional(&next, nd);
                 break;
         }
-        path_release(nd);
+        path_put(&nd->path);
 return_err:
         return err;
 }
@@ -1015,31 +1027,30 @@ return_err:
  * Retry the whole path once, forcing real lookup requests
  * instead of relying on the dcache.
  */
-static int fastcall link_path_walk(const char *name, struct nameidata *nd)
+static int link_path_walk(const char *name, struct nameidata *nd)
 {
         struct nameidata save = *nd;
         int result;
 
         /* make sure the stuff we saved doesn't go away */
-        dget(save.dentry);
-        mntget(save.mnt);
+        dget(save.path.dentry);
+        mntget(save.path.mnt);
 
         result = __link_path_walk(name, nd);
         if (result == -ESTALE) {
                 *nd = save;
-                dget(nd->dentry);
-                mntget(nd->mnt);
+                dget(nd->path.dentry);
+                mntget(nd->path.mnt);
                 nd->flags |= LOOKUP_REVAL;
                 result = __link_path_walk(name, nd);
         }
 
-        dput(save.dentry);
-        mntput(save.mnt);
+        path_put(&save.path);
 
         return result;
 }
 
-static int fastcall path_walk(const char * name, struct nameidata *nd)
+static int path_walk(const char *name, struct nameidata *nd)
 {
         current->total_link_count = 0;
         return link_path_walk(name, nd);
@@ -1054,9 +1065,9 @@ static int __emul_lookup_dentry(const char *name, struct nameidata *nd)
         if (path_walk(name, nd))
                 return 0;               /* something went wrong... */
 
-        if (!nd->dentry->d_inode || S_ISDIR(nd->dentry->d_inode->i_mode)) {
-                struct dentry *old_dentry = nd->dentry;
-                struct vfsmount *old_mnt = nd->mnt;
+        if (!nd->path.dentry->d_inode ||
+            S_ISDIR(nd->path.dentry->d_inode->i_mode)) {
+                struct path old_path = nd->path;
                 struct qstr last = nd->last;
                 int last_type = nd->last_type;
                 struct fs_struct *fs = current->fs;
@@ -1067,19 +1078,17 @@ static int __emul_lookup_dentry(const char *name, struct nameidata *nd)
                  */
                 nd->last_type = LAST_ROOT;
                 read_lock(&fs->lock);
-                nd->mnt = mntget(fs->rootmnt);
-                nd->dentry = dget(fs->root);
+                nd->path = fs->root;
+                path_get(&fs->root);
                 read_unlock(&fs->lock);
                 if (path_walk(name, nd) == 0) {
-                        if (nd->dentry->d_inode) {
-                                dput(old_dentry);
-                                mntput(old_mnt);
+                        if (nd->path.dentry->d_inode) {
+                                path_put(&old_path);
                                 return 1;
                         }
-                        path_release(nd);
+                        path_put(&nd->path);
                 }
-                nd->dentry = old_dentry;
-                nd->mnt = old_mnt;
+                nd->path = old_path;
                 nd->last = last;
                 nd->last_type = last_type;
         }
@@ -1090,33 +1099,26 @@ void set_fs_altroot(void)
 {
         char *emul = __emul_prefix();
         struct nameidata nd;
-        struct vfsmount *mnt = NULL, *oldmnt;
-        struct dentry *dentry = NULL, *olddentry;
+        struct path path = {}, old_path;
         int err;
         struct fs_struct *fs = current->fs;
 
         if (!emul)
                 goto set_it;
         err = path_lookup(emul, LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_NOALT, &nd);
-        if (!err) {
-                mnt = nd.mnt;
-                dentry = nd.dentry;
-        }
+        if (!err)
+                path = nd.path;
 set_it:
         write_lock(&fs->lock);
-        oldmnt = fs->altrootmnt;
-        olddentry = fs->altroot;
-        fs->altrootmnt = mnt;
-        fs->altroot = dentry;
+        old_path = fs->altroot;
+        fs->altroot = path;
         write_unlock(&fs->lock);
-        if (olddentry) {
-                dput(olddentry);
-                mntput(oldmnt);
-        }
+        if (old_path.dentry)
+                path_put(&old_path);
 }
 
 /* Returns 0 and nd will be valid on success; Retuns error, otherwise. */
-static int fastcall do_path_lookup(int dfd, const char *name,
+static int do_path_lookup(int dfd, const char *name,
                                 unsigned int flags, struct nameidata *nd)
 {
         int retval = 0;
@@ -1130,21 +1132,21 @@ static int fastcall do_path_lookup(int dfd, const char *name,
 
         if (*name=='/') {
                 read_lock(&fs->lock);
-                if (fs->altroot && !(nd->flags & LOOKUP_NOALT)) {
-                        nd->mnt = mntget(fs->altrootmnt);
-                        nd->dentry = dget(fs->altroot);
+                if (fs->altroot.dentry && !(nd->flags & LOOKUP_NOALT)) {
+                        nd->path = fs->altroot;
+                        path_get(&fs->altroot);
                         read_unlock(&fs->lock);
                         if (__emul_lookup_dentry(name,nd))
                                 goto out; /* found in altroot */
                         read_lock(&fs->lock);
                 }
-                nd->mnt = mntget(fs->rootmnt);
-                nd->dentry = dget(fs->root);
+                nd->path = fs->root;
+                path_get(&fs->root);
                 read_unlock(&fs->lock);
         } else if (dfd == AT_FDCWD) {
                 read_lock(&fs->lock);
-                nd->mnt = mntget(fs->pwdmnt);
-                nd->dentry = dget(fs->pwd);
+                nd->path = fs->pwd;
+                path_get(&fs->pwd);
                 read_unlock(&fs->lock);
         } else {
                 struct dentry *dentry;
@@ -1164,17 +1166,17 @@ static int fastcall do_path_lookup(int dfd, const char *name,
                 if (retval)
                         goto fput_fail;
 
-                nd->mnt = mntget(file->f_path.mnt);
-                nd->dentry = dget(dentry);
+                nd->path = file->f_path;
+                path_get(&file->f_path);
 
                 fput_light(file, fput_needed);
         }
 
         retval = path_walk(name, nd);
 out:
-        if (unlikely(!retval && !audit_dummy_context() && nd->dentry &&
-                                nd->dentry->d_inode))
-                audit_inode(name, nd->dentry);
+        if (unlikely(!retval && !audit_dummy_context() && nd->path.dentry &&
+                                nd->path.dentry->d_inode))
+                audit_inode(name, nd->path.dentry);
 out_fail:
         return retval;
 
@@ -1183,7 +1185,7 @@ fput_fail:
         goto out_fail;
 }
 
-int fastcall path_lookup(const char *name, unsigned int flags,
+int path_lookup(const char *name, unsigned int flags,
                         struct nameidata *nd)
 {
         return do_path_lookup(AT_FDCWD, name, flags, nd);
@@ -1208,13 +1210,13 @@ int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt,
         nd->flags = flags;
         nd->depth = 0;
 
-        nd->mnt = mntget(mnt);
-        nd->dentry = dget(dentry);
+        nd->path.mnt = mntget(mnt);
+        nd->path.dentry = dget(dentry);
 
         retval = path_walk(name, nd);
-        if (unlikely(!retval && !audit_dummy_context() && nd->dentry &&
-                                nd->dentry->d_inode))
-                audit_inode(name, nd->dentry);
+        if (unlikely(!retval && !audit_dummy_context() && nd->path.dentry &&
+                                nd->path.dentry->d_inode))
+                audit_inode(name, nd->path.dentry);
 
         return retval;
 
@@ -1236,7 +1238,7 @@ static int __path_lookup_intent_open(int dfd, const char *name,
         if (IS_ERR(nd->intent.open.file)) {
                 if (err == 0) {
                         err = PTR_ERR(nd->intent.open.file);
-                        path_release(nd);
+                        path_put(&nd->path);
                 }
         } else if (err != 0)
                 release_open_intent(nd);
@@ -1333,10 +1335,10 @@ static struct dentry *lookup_hash(struct nameidata *nd)
 {
         int err;
 
-        err = permission(nd->dentry->d_inode, MAY_EXEC, nd);
+        err = permission(nd->path.dentry->d_inode, MAY_EXEC, nd);
         if (err)
                 return ERR_PTR(err);
-        return __lookup_hash(&nd->last, nd->dentry, nd);
+        return __lookup_hash(&nd->last, nd->path.dentry, nd);
 }
 
 static int __lookup_one_len(const char *name, struct qstr *this,
@@ -1409,7 +1411,7 @@ struct dentry *lookup_one_noperm(const char *name, struct dentry *base)
         return __lookup_hash(&this, base, NULL);
 }
 
-int fastcall __user_walk_fd(int dfd, const char __user *name, unsigned flags,
+int __user_walk_fd(int dfd, const char __user *name, unsigned flags,
                             struct nameidata *nd)
 {
         char *tmp = getname(name);
@@ -1422,7 +1424,7 @@ int fastcall __user_walk_fd(int dfd, const char __user *name, unsigned flags,
         return err;
 }
 
-int fastcall __user_walk(const char __user *name, unsigned flags, struct nameidata *nd)
+int __user_walk(const char __user *name, unsigned flags, struct nameidata *nd)
 {
         return __user_walk_fd(AT_FDCWD, name, flags, nd);
 }
@@ -1595,7 +1597,7 @@ int vfs_create(struct inode *dir, struct dentry *dentry, int mode,
 
 int may_open(struct nameidata *nd, int acc_mode, int flag)
 {
-        struct dentry *dentry = nd->dentry;
+        struct dentry *dentry = nd->path.dentry;
         struct inode *inode = dentry->d_inode;
         int error;
 
@@ -1616,7 +1618,7 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
         if (S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
                 flag &= ~O_TRUNC;
         } else if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
-                if (nd->mnt->mnt_flags & MNT_NODEV)
+                if (nd->path.mnt->mnt_flags & MNT_NODEV)
                         return -EACCES;
 
                 flag &= ~O_TRUNC;
@@ -1678,14 +1680,14 @@ static int open_namei_create(struct nameidata *nd, struct path *path,
                                 int flag, int mode)
 {
         int error;
-        struct dentry *dir = nd->dentry;
+        struct dentry *dir = nd->path.dentry;
 
         if (!IS_POSIXACL(dir->d_inode))
                 mode &= ~current->fs->umask;
         error = vfs_create(dir->d_inode, path->dentry, mode, nd);
         mutex_unlock(&dir->d_inode->i_mutex);
-        dput(nd->dentry);
-        nd->dentry = path->dentry;
+        dput(nd->path.dentry);
+        nd->path.dentry = path->dentry;
         if (error)
                 return error;
         /* Don't check for write permission, don't truncate */
@@ -1752,11 +1754,11 @@ int open_namei(int dfd, const char *pathname, int flag,
         if (nd->last_type != LAST_NORM || nd->last.name[nd->last.len])
                 goto exit;
 
-        dir = nd->dentry;
+        dir = nd->path.dentry;
         nd->flags &= ~LOOKUP_PARENT;
         mutex_lock(&dir->d_inode->i_mutex);
         path.dentry = lookup_hash(nd);
-        path.mnt = nd->mnt;
+        path.mnt = nd->path.mnt;
 
 do_last:
         error = PTR_ERR(path.dentry);
@@ -1812,11 +1814,11 @@ ok:
         return 0;
 
 exit_dput:
-        dput_path(&path, nd);
+        path_put_conditional(&path, nd);
 exit:
         if (!IS_ERR(nd->intent.open.file))
                 release_open_intent(nd);
-        path_release(nd);
+        path_put(&nd->path);
         return error;
 
 do_link:
@@ -1861,10 +1863,10 @@ do_link:
                 __putname(nd->last.name);
                 goto exit;
         }
-        dir = nd->dentry;
+        dir = nd->path.dentry;
         mutex_lock(&dir->d_inode->i_mutex);
         path.dentry = lookup_hash(nd);
-        path.mnt = nd->mnt;
+        path.mnt = nd->path.mnt;
         __putname(nd->last.name);
         goto do_last;
 }
@@ -1877,13 +1879,13 @@ do_link:
  * Simple function to lookup and return a dentry and create it
  * if it doesn't exist.  Is SMP-safe.
  *
- * Returns with nd->dentry->d_inode->i_mutex locked.
+ * Returns with nd->path.dentry->d_inode->i_mutex locked.
  */
 struct dentry *lookup_create(struct nameidata *nd, int is_dir)
 {
         struct dentry *dentry = ERR_PTR(-EEXIST);
 
-        mutex_lock_nested(&nd->dentry->d_inode->i_mutex, I_MUTEX_PARENT);
+        mutex_lock_nested(&nd->path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
         /*
          * Yucky last component or no last component at all?
          * (foo/., foo/.., /////)
@@ -1962,19 +1964,19 @@ asmlinkage long sys_mknodat(int dfd, const char __user *filename, int mode,
         dentry = lookup_create(&nd, 0);
         error = PTR_ERR(dentry);
 
-        if (!IS_POSIXACL(nd.dentry->d_inode))
+        if (!IS_POSIXACL(nd.path.dentry->d_inode))
                 mode &= ~current->fs->umask;
         if (!IS_ERR(dentry)) {
                 switch (mode & S_IFMT) {
                 case 0: case S_IFREG:
-                        error = vfs_create(nd.dentry->d_inode,dentry,mode,&nd);
+                        error = vfs_create(nd.path.dentry->d_inode,dentry,mode,&nd);
                         break;
                 case S_IFCHR: case S_IFBLK:
-                        error = vfs_mknod(nd.dentry->d_inode,dentry,mode,
+                        error = vfs_mknod(nd.path.dentry->d_inode,dentry,mode,
                                         new_decode_dev(dev));
                         break;
                 case S_IFIFO: case S_IFSOCK:
-                        error = vfs_mknod(nd.dentry->d_inode,dentry,mode,0);
+                        error = vfs_mknod(nd.path.dentry->d_inode,dentry,mode,0);
                         break;
                 case S_IFDIR:
                         error = -EPERM;
@@ -1984,8 +1986,8 @@ asmlinkage long sys_mknodat(int dfd, const char __user *filename, int mode,
                 }
                 dput(dentry);
         }
-        mutex_unlock(&nd.dentry->d_inode->i_mutex);
-        path_release(&nd);
+        mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
+        path_put(&nd.path);
 out:
         putname(tmp);
 
@@ -2039,13 +2041,13 @@ asmlinkage long sys_mkdirat(int dfd, const char __user *pathname, int mode)
         if (IS_ERR(dentry))
                 goto out_unlock;
 
-        if (!IS_POSIXACL(nd.dentry->d_inode))
+        if (!IS_POSIXACL(nd.path.dentry->d_inode))
                 mode &= ~current->fs->umask;
-        error = vfs_mkdir(nd.dentry->d_inode, dentry, mode);
+        error = vfs_mkdir(nd.path.dentry->d_inode, dentry, mode);
         dput(dentry);
 out_unlock:
-        mutex_unlock(&nd.dentry->d_inode->i_mutex);
-        path_release(&nd);
+        mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
+        path_put(&nd.path);
 out:
         putname(tmp);
 out_err:
@@ -2143,17 +2145,17 @@ static long do_rmdir(int dfd, const char __user *pathname)
                         error = -EBUSY;
                         goto exit1;
         }
-        mutex_lock_nested(&nd.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
+        mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
         dentry = lookup_hash(&nd);
         error = PTR_ERR(dentry);
         if (IS_ERR(dentry))
                 goto exit2;
-        error = vfs_rmdir(nd.dentry->d_inode, dentry);
+        error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
         dput(dentry);
 exit2:
-        mutex_unlock(&nd.dentry->d_inode->i_mutex);
+        mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
 exit1:
-        path_release(&nd);
+        path_put(&nd.path);
 exit:
         putname(name);
         return error;
@@ -2188,6 +2190,7 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
 
         /* We don't d_delete() NFS sillyrenamed files--they still exist. */
         if (!error && !(dentry->d_flags & DCACHE_NFSFS_RENAMED)) {
+                fsnotify_link_count(dentry->d_inode);
                 d_delete(dentry);
         }
 
@@ -2218,7 +2221,7 @@ static long do_unlinkat(int dfd, const char __user *pathname)
         error = -EISDIR;
         if (nd.last_type != LAST_NORM)
                 goto exit1;
-        mutex_lock_nested(&nd.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
+        mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
         dentry = lookup_hash(&nd);
         error = PTR_ERR(dentry);
         if (!IS_ERR(dentry)) {
@@ -2228,15 +2231,15 @@ static long do_unlinkat(int dfd, const char __user *pathname)
                 inode = dentry->d_inode;
                 if (inode)
                         atomic_inc(&inode->i_count);
-                error = vfs_unlink(nd.dentry->d_inode, dentry);
+                error = vfs_unlink(nd.path.dentry->d_inode, dentry);
         exit2:
                 dput(dentry);
         }
-        mutex_unlock(&nd.dentry->d_inode->i_mutex);
+        mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
         if (inode)
                 iput(inode);    /* truncate the inode here */
 exit1:
-        path_release(&nd);
+        path_put(&nd.path);
 exit:
         putname(name);
         return error;
@@ -2309,11 +2312,11 @@ asmlinkage long sys_symlinkat(const char __user *oldname,
         if (IS_ERR(dentry))
                 goto out_unlock;
 
-        error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO);
+        error = vfs_symlink(nd.path.dentry->d_inode, dentry, from, S_IALLUGO);
         dput(dentry);
 out_unlock:
-        mutex_unlock(&nd.dentry->d_inode->i_mutex);
-        path_release(&nd);
+        mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
+        path_put(&nd.path);
 out:
         putname(to);
 out_putname:
@@ -2360,7 +2363,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
         error = dir->i_op->link(old_dentry, dir, new_dentry);
         mutex_unlock(&old_dentry->d_inode->i_mutex);
         if (!error)
-                fsnotify_create(dir, new_dentry);
+                fsnotify_link(dir, old_dentry->d_inode, new_dentry);
         return error;
 }
 
@@ -2398,20 +2401,20 @@ asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
         if (error)
                 goto out;
         error = -EXDEV;
-        if (old_nd.mnt != nd.mnt)
+        if (old_nd.path.mnt != nd.path.mnt)
                 goto out_release;
         new_dentry = lookup_create(&nd, 0);
         error = PTR_ERR(new_dentry);
         if (IS_ERR(new_dentry))
                 goto out_unlock;
-        error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
+        error = vfs_link(old_nd.path.dentry, nd.path.dentry->d_inode, new_dentry);
         dput(new_dentry);
 out_unlock:
-        mutex_unlock(&nd.dentry->d_inode->i_mutex);
+        mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
 out_release:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
-        path_release(&old_nd);
+        path_put(&old_nd.path);
 exit:
         putname(to);
 
@@ -2587,15 +2590,15 @@ static int do_rename(int olddfd, const char *oldname,
                 goto exit1;
 
         error = -EXDEV;
-        if (oldnd.mnt != newnd.mnt)
+        if (oldnd.path.mnt != newnd.path.mnt)
                 goto exit2;
 
-        old_dir = oldnd.dentry;
+        old_dir = oldnd.path.dentry;
         error = -EBUSY;
         if (oldnd.last_type != LAST_NORM)
                 goto exit2;
 
-        new_dir = newnd.dentry;
+        new_dir = newnd.path.dentry;
         if (newnd.last_type != LAST_NORM)
                 goto exit2;
 
@@ -2639,9 +2642,9 @@ exit4:
 exit3:
         unlock_rename(new_dir, old_dir);
 exit2:
-        path_release(&newnd);
+        path_put(&newnd.path);
 exit1:
-        path_release(&oldnd);
+        path_put(&oldnd.path);
 exit:
         return error;
 }
@@ -2815,7 +2818,6 @@ EXPORT_SYMBOL(page_symlink);
 EXPORT_SYMBOL(page_symlink_inode_operations);
 EXPORT_SYMBOL(path_lookup);
 EXPORT_SYMBOL(vfs_path_lookup);
-EXPORT_SYMBOL(path_release);
 EXPORT_SYMBOL(permission);
 EXPORT_SYMBOL(vfs_permission);
 EXPORT_SYMBOL(file_permission);
diff --git a/fs/namespace.c b/fs/namespace.c
index 61bf376e29e8..7953c96a2071 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -25,18 +25,21 @@
 #include <linux/security.h>
 #include <linux/mount.h>
 #include <linux/ramfs.h>
+#include <linux/log2.h>
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 #include "pnode.h"
 #include "internal.h"
 
+#define HASH_SHIFT ilog2(PAGE_SIZE / sizeof(struct list_head))
+#define HASH_SIZE (1UL << HASH_SHIFT)
+
 /* spinlock for vfsmount related operations, inplace of dcache_lock */
 __cacheline_aligned_in_smp DEFINE_SPINLOCK(vfsmount_lock);
 
 static int event;
 
 static struct list_head *mount_hashtable __read_mostly;
-static int hash_mask __read_mostly, hash_bits __read_mostly;
 static struct kmem_cache *mnt_cache __read_mostly;
 static struct rw_semaphore namespace_sem;
 
@@ -48,8 +51,8 @@ static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
 {
         unsigned long tmp = ((unsigned long)mnt / L1_CACHE_BYTES);
         tmp += ((unsigned long)dentry / L1_CACHE_BYTES);
-        tmp = tmp + (tmp >> hash_bits);
-        return tmp & hash_mask;
+        tmp = tmp + (tmp >> HASH_SHIFT);
+        return tmp & (HASH_SIZE - 1);
 }
 
 struct vfsmount *alloc_vfsmnt(const char *name)
@@ -154,13 +157,13 @@ static void __touch_mnt_namespace(struct mnt_namespace *ns)
 
 static void detach_mnt(struct vfsmount *mnt, struct nameidata *old_nd)
 {
-        old_nd->dentry = mnt->mnt_mountpoint;
-        old_nd->mnt = mnt->mnt_parent;
+        old_nd->path.dentry = mnt->mnt_mountpoint;
+        old_nd->path.mnt = mnt->mnt_parent;
         mnt->mnt_parent = mnt;
         mnt->mnt_mountpoint = mnt->mnt_root;
         list_del_init(&mnt->mnt_child);
         list_del_init(&mnt->mnt_hash);
-        old_nd->dentry->d_mounted--;
+        old_nd->path.dentry->d_mounted--;
 }
 
 void mnt_set_mountpoint(struct vfsmount *mnt, struct dentry *dentry,
@@ -173,10 +176,10 @@ void mnt_set_mountpoint(struct vfsmount *mnt, struct dentry *dentry,
 
 static void attach_mnt(struct vfsmount *mnt, struct nameidata *nd)
 {
-        mnt_set_mountpoint(nd->mnt, nd->dentry, mnt);
+        mnt_set_mountpoint(nd->path.mnt, nd->path.dentry, mnt);
         list_add_tail(&mnt->mnt_hash, mount_hashtable +
-                        hash(nd->mnt, nd->dentry));
-        list_add_tail(&mnt->mnt_child, &nd->mnt->mnt_mounts);
+                        hash(nd->path.mnt, nd->path.dentry));
+        list_add_tail(&mnt->mnt_child, &nd->path.mnt->mnt_mounts);
 }
 
 /*
@@ -317,6 +320,50 @@ void mnt_unpin(struct vfsmount *mnt)
 
 EXPORT_SYMBOL(mnt_unpin);
 
+static inline void mangle(struct seq_file *m, const char *s)
+{
+        seq_escape(m, s, " \t\n\\");
+}
+
+/*
+ * Simple .show_options callback for filesystems which don't want to
+ * implement more complex mount option showing.
+ *
+ * See also save_mount_options().
+ */
+int generic_show_options(struct seq_file *m, struct vfsmount *mnt)
+{
+        const char *options = mnt->mnt_sb->s_options;
+
+        if (options != NULL && options[0]) {
+                seq_putc(m, ',');
+                mangle(m, options);
+        }
+
+        return 0;
+}
+EXPORT_SYMBOL(generic_show_options);
+
+/*
+ * If filesystem uses generic_show_options(), this function should be
+ * called from the fill_super() callback.
+ *
+ * The .remount_fs callback usually needs to be handled in a special
+ * way, to make sure, that previous options are not overwritten if the
+ * remount fails.
+ *
+ * Also note, that if the filesystem's .remount_fs function doesn't
+ * reset all options to their default value, but changes only newly
+ * given options, then the displayed options will not reflect reality
+ * any more.
+ */
+void save_mount_options(struct super_block *sb, char *options)
+{
+        kfree(sb->s_options);
+        sb->s_options = kstrdup(options, GFP_KERNEL);
+}
+EXPORT_SYMBOL(save_mount_options);
+
 /* iterator */
 static void *m_start(struct seq_file *m, loff_t *pos)
 {
@@ -338,11 +385,6 @@ static void m_stop(struct seq_file *m, void *v)
         up_read(&namespace_sem);
 }
 
-static inline void mangle(struct seq_file *m, const char *s)
-{
-        seq_escape(m, s, " \t\n\\");
-}
-
 static int show_vfsmnt(struct seq_file *m, void *v)
 {
         struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
@@ -366,10 +408,11 @@ static int show_vfsmnt(struct seq_file *m, void *v)
                 { 0, NULL }
         };
         struct proc_fs_info *fs_infop;
+        struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
 
         mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
         seq_putc(m, ' ');
-        seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
+        seq_path(m, &mnt_path, " \t\n\\");
         seq_putc(m, ' ');
         mangle(m, mnt->mnt_sb->s_type->name);
         if (mnt->mnt_sb->s_subtype && mnt->mnt_sb->s_subtype[0]) {
@@ -401,6 +444,7 @@ struct seq_operations mounts_op = {
 static int show_vfsstat(struct seq_file *m, void *v)
 {
         struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
+        struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
         int err = 0;
 
         /* device */
@@ -412,7 +456,7 @@ static int show_vfsstat(struct seq_file *m, void *v)
 
         /* mount point */
         seq_puts(m, " mounted on ");
-        seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
+        seq_path(m, &mnt_path, " \t\n\\");
         seq_putc(m, ' ');
 
         /* file system type */
@@ -551,7 +595,7 @@ static int do_umount(struct vfsmount *mnt, int flags)
          *  (2) the usage count == 1 [parent vfsmount] + 1 [sys_umount]
          */
         if (flags & MNT_EXPIRE) {
-                if (mnt == current->fs->rootmnt ||
+                if (mnt == current->fs->root.mnt ||
                     flags & (MNT_FORCE | MNT_DETACH))
                         return -EINVAL;
 
@@ -586,7 +630,7 @@ static int do_umount(struct vfsmount *mnt, int flags)
          * /reboot - static binary that would close all descriptors and
          * call reboot(9). Then init(8) could umount root and exec /reboot.
          */
-        if (mnt == current->fs->rootmnt && !(flags & MNT_DETACH)) {
+        if (mnt == current->fs->root.mnt && !(flags & MNT_DETACH)) {
                 /*
                  * Special case for "unmounting" root ...
                  * we just try to remount it readonly.
@@ -637,18 +681,20 @@ asmlinkage long sys_umount(char __user * name, int flags)
         if (retval)
                 goto out;
         retval = -EINVAL;
-        if (nd.dentry != nd.mnt->mnt_root)
+        if (nd.path.dentry != nd.path.mnt->mnt_root)
                 goto dput_and_out;
-        if (!check_mnt(nd.mnt))
+        if (!check_mnt(nd.path.mnt))
                 goto dput_and_out;
 
         retval = -EPERM;
         if (!capable(CAP_SYS_ADMIN))
                 goto dput_and_out;
 
-        retval = do_umount(nd.mnt, flags);
+        retval = do_umount(nd.path.mnt, flags);
 dput_and_out:
-        path_release_on_umount(&nd);
+        /* we mustn't call path_put() as that would clear mnt_expiry_mark */
+        dput(nd.path.dentry);
+        mntput_no_expire(nd.path.mnt);
 out:
         return retval;
 }
@@ -671,10 +717,10 @@ static int mount_is_safe(struct nameidata *nd)
                 return 0;
         return -EPERM;
 #ifdef notyet
-        if (S_ISLNK(nd->dentry->d_inode->i_mode))
+        if (S_ISLNK(nd->path.dentry->d_inode->i_mode))
                 return -EPERM;
-        if (nd->dentry->d_inode->i_mode & S_ISVTX) {
-                if (current->uid != nd->dentry->d_inode->i_uid)
+        if (nd->path.dentry->d_inode->i_mode & S_ISVTX) {
+                if (current->uid != nd->path.dentry->d_inode->i_uid)
                         return -EPERM;
         }
         if (vfs_permission(nd, MAY_WRITE))
@@ -723,8 +769,8 @@ struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
                                 q = q->mnt_parent;
                         }
                         p = s;
-                        nd.mnt = q;
-                        nd.dentry = p->mnt_mountpoint;
+                        nd.path.mnt = q;
+                        nd.path.dentry = p->mnt_mountpoint;
                         q = clone_mnt(p, p->mnt_root, flag);
                         if (!q)
                                 goto Enomem;
@@ -833,8 +879,8 @@ static int attach_recursive_mnt(struct vfsmount *source_mnt,
                         struct nameidata *nd, struct nameidata *parent_nd)
 {
         LIST_HEAD(tree_list);
-        struct vfsmount *dest_mnt = nd->mnt;
-        struct dentry *dest_dentry = nd->dentry;
+        struct vfsmount *dest_mnt = nd->path.mnt;
+        struct dentry *dest_dentry = nd->path.dentry;
         struct vfsmount *child, *p;
 
         if (propagate_mnt(dest_mnt, dest_dentry, source_mnt, &tree_list))
@@ -869,13 +915,13 @@ static int graft_tree(struct vfsmount *mnt, struct nameidata *nd)
         if (mnt->mnt_sb->s_flags & MS_NOUSER)
                 return -EINVAL;
 
-        if (S_ISDIR(nd->dentry->d_inode->i_mode) !=
+        if (S_ISDIR(nd->path.dentry->d_inode->i_mode) !=
               S_ISDIR(mnt->mnt_root->d_inode->i_mode))
                 return -ENOTDIR;
 
         err = -ENOENT;
-        mutex_lock(&nd->dentry->d_inode->i_mutex);
-        if (IS_DEADDIR(nd->dentry->d_inode))
+        mutex_lock(&nd->path.dentry->d_inode->i_mutex);
+        if (IS_DEADDIR(nd->path.dentry->d_inode))
                 goto out_unlock;
 
         err = security_sb_check_sb(mnt, nd);
@@ -883,10 +929,10 @@ static int graft_tree(struct vfsmount *mnt, struct nameidata *nd)
                 goto out_unlock;
 
         err = -ENOENT;
-        if (IS_ROOT(nd->dentry) || !d_unhashed(nd->dentry))
+        if (IS_ROOT(nd->path.dentry) || !d_unhashed(nd->path.dentry))
                 err = attach_recursive_mnt(mnt, nd, NULL);
 out_unlock:
-        mutex_unlock(&nd->dentry->d_inode->i_mutex);
+        mutex_unlock(&nd->path.dentry->d_inode->i_mutex);
         if (!err)
                 security_sb_post_addmount(mnt, nd);
         return err;
@@ -894,17 +940,18 @@ out_unlock:
 
 /*
  * recursively change the type of the mountpoint.
+ * noinline this do_mount helper to save do_mount stack space.
  */
-static int do_change_type(struct nameidata *nd, int flag)
+static noinline int do_change_type(struct nameidata *nd, int flag)
 {
-        struct vfsmount *m, *mnt = nd->mnt;
+        struct vfsmount *m, *mnt = nd->path.mnt;
         int recurse = flag & MS_REC;
         int type = flag & ~MS_REC;
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        if (nd->dentry != nd->mnt->mnt_root)
+        if (nd->path.dentry != nd->path.mnt->mnt_root)
                 return -EINVAL;
 
         down_write(&namespace_sem);
@@ -918,8 +965,10 @@ static int do_change_type(struct nameidata *nd, int flag)
 
 /*
  * do loopback mount.
+ * noinline this do_mount helper to save do_mount stack space.
  */
-static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
+static noinline int do_loopback(struct nameidata *nd, char *old_name,
+                                int recurse)
 {
         struct nameidata old_nd;
         struct vfsmount *mnt = NULL;
@@ -934,17 +983,17 @@ static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
 
         down_write(&namespace_sem);
         err = -EINVAL;
-        if (IS_MNT_UNBINDABLE(old_nd.mnt))
-                goto out;
+        if (IS_MNT_UNBINDABLE(old_nd.path.mnt))
+                goto out;
 
-        if (!check_mnt(nd->mnt) || !check_mnt(old_nd.mnt))
+        if (!check_mnt(nd->path.mnt) || !check_mnt(old_nd.path.mnt))
                 goto out;
 
         err = -ENOMEM;
         if (recurse)
-                mnt = copy_tree(old_nd.mnt, old_nd.dentry, 0);
+                mnt = copy_tree(old_nd.path.mnt, old_nd.path.dentry, 0);
         else
-                mnt = clone_mnt(old_nd.mnt, old_nd.dentry, 0);
+                mnt = clone_mnt(old_nd.path.mnt, old_nd.path.dentry, 0);
 
         if (!mnt)
                 goto out;
@@ -960,7 +1009,7 @@ static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
 
 out:
         up_write(&namespace_sem);
-        path_release(&old_nd);
+        path_put(&old_nd.path);
         return err;
 }
 
@@ -968,29 +1017,30 @@ out:
  * change filesystem flags. dir should be a physical root of filesystem.
  * If you've mounted a non-root directory somewhere and want to do remount
  * on it - tough luck.
+ * noinline this do_mount helper to save do_mount stack space.
  */
-static int do_remount(struct nameidata *nd, int flags, int mnt_flags,
+static noinline int do_remount(struct nameidata *nd, int flags, int mnt_flags,
                       void *data)
 {
         int err;
-        struct super_block *sb = nd->mnt->mnt_sb;
+        struct super_block *sb = nd->path.mnt->mnt_sb;
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        if (!check_mnt(nd->mnt))
+        if (!check_mnt(nd->path.mnt))
                 return -EINVAL;
 
-        if (nd->dentry != nd->mnt->mnt_root)
+        if (nd->path.dentry != nd->path.mnt->mnt_root)
                 return -EINVAL;
 
         down_write(&sb->s_umount);
         err = do_remount_sb(sb, flags, data, 0);
         if (!err)
-                nd->mnt->mnt_flags = mnt_flags;
+                nd->path.mnt->mnt_flags = mnt_flags;
         up_write(&sb->s_umount);
         if (!err)
-                security_sb_post_remount(nd->mnt, flags, data);
+                security_sb_post_remount(nd->path.mnt, flags, data);
         return err;
 }
 
@@ -1004,7 +1054,10 @@ static inline int tree_contains_unbindable(struct vfsmount *mnt)
         return 0;
 }
 
-static int do_move_mount(struct nameidata *nd, char *old_name)
+/*
+ * noinline this do_mount helper to save do_mount stack space.
+ */
+static noinline int do_move_mount(struct nameidata *nd, char *old_name)
 {
         struct nameidata old_nd, parent_nd;
         struct vfsmount *p;
@@ -1018,69 +1071,74 @@ static int do_move_mount(struct nameidata *nd, char *old_name)
                 return err;
 
         down_write(&namespace_sem);
-        while (d_mountpoint(nd->dentry) && follow_down(&nd->mnt, &nd->dentry))
+        while (d_mountpoint(nd->path.dentry) &&
+               follow_down(&nd->path.mnt, &nd->path.dentry))
                 ;
         err = -EINVAL;
-        if (!check_mnt(nd->mnt) || !check_mnt(old_nd.mnt))
+        if (!check_mnt(nd->path.mnt) || !check_mnt(old_nd.path.mnt))
                 goto out;
 
         err = -ENOENT;
-        mutex_lock(&nd->dentry->d_inode->i_mutex);
-        if (IS_DEADDIR(nd->dentry->d_inode))
+        mutex_lock(&nd->path.dentry->d_inode->i_mutex);
+        if (IS_DEADDIR(nd->path.dentry->d_inode))
                 goto out1;
 
-        if (!IS_ROOT(nd->dentry) && d_unhashed(nd->dentry))
+        if (!IS_ROOT(nd->path.dentry) && d_unhashed(nd->path.dentry))
                 goto out1;
 
         err = -EINVAL;
-        if (old_nd.dentry != old_nd.mnt->mnt_root)
+        if (old_nd.path.dentry != old_nd.path.mnt->mnt_root)
                 goto out1;
 
-        if (old_nd.mnt == old_nd.mnt->mnt_parent)
+        if (old_nd.path.mnt == old_nd.path.mnt->mnt_parent)
                 goto out1;
 
-        if (S_ISDIR(nd->dentry->d_inode->i_mode) !=
-              S_ISDIR(old_nd.dentry->d_inode->i_mode))
+        if (S_ISDIR(nd->path.dentry->d_inode->i_mode) !=
+              S_ISDIR(old_nd.path.dentry->d_inode->i_mode))
                 goto out1;
         /*
          * Don't move a mount residing in a shared parent.
          */
-        if (old_nd.mnt->mnt_parent && IS_MNT_SHARED(old_nd.mnt->mnt_parent))
+        if (old_nd.path.mnt->mnt_parent &&
+            IS_MNT_SHARED(old_nd.path.mnt->mnt_parent))
                 goto out1;
         /*
          * Don't move a mount tree containing unbindable mounts to a destination
          * mount which is shared.
          */
-        if (IS_MNT_SHARED(nd->mnt) && tree_contains_unbindable(old_nd.mnt))
+        if (IS_MNT_SHARED(nd->path.mnt) &&
+            tree_contains_unbindable(old_nd.path.mnt))
                 goto out1;
         err = -ELOOP;
-        for (p = nd->mnt; p->mnt_parent != p; p = p->mnt_parent)
-                if (p == old_nd.mnt)
+        for (p = nd->path.mnt; p->mnt_parent != p; p = p->mnt_parent)
+                if (p == old_nd.path.mnt)
                         goto out1;
 
-        if ((err = attach_recursive_mnt(old_nd.mnt, nd, &parent_nd)))
+        err = attach_recursive_mnt(old_nd.path.mnt, nd, &parent_nd);
+        if (err)
                 goto out1;
 
         spin_lock(&vfsmount_lock);
         /* if the mount is moved, it should no longer be expire
          * automatically */
-        list_del_init(&old_nd.mnt->mnt_expire);
+        list_del_init(&old_nd.path.mnt->mnt_expire);
         spin_unlock(&vfsmount_lock);
 out1:
-        mutex_unlock(&nd->dentry->d_inode->i_mutex);
+        mutex_unlock(&nd->path.dentry->d_inode->i_mutex);
 out:
         up_write(&namespace_sem);
         if (!err)
-                path_release(&parent_nd);
-        path_release(&old_nd);
+                path_put(&parent_nd.path);
+        path_put(&old_nd.path);
         return err;
 }
 
 /*
  * create a new mount for userspace and request it to be added into the
  * namespace's tree
+ * noinline this do_mount helper to save do_mount stack space.
  */
-static int do_new_mount(struct nameidata *nd, char *type, int flags,
+static noinline int do_new_mount(struct nameidata *nd, char *type, int flags,
                         int mnt_flags, char *name, void *data)
 {
         struct vfsmount *mnt;
@@ -1110,16 +1168,17 @@ int do_add_mount(struct vfsmount *newmnt, struct nameidata *nd,
 
         down_write(&namespace_sem);
         /* Something was mounted here while we slept */
-        while (d_mountpoint(nd->dentry) && follow_down(&nd->mnt, &nd->dentry))
+        while (d_mountpoint(nd->path.dentry) &&
+               follow_down(&nd->path.mnt, &nd->path.dentry))
                 ;
         err = -EINVAL;
-        if (!check_mnt(nd->mnt))
+        if (!check_mnt(nd->path.mnt))
                 goto unlock;
 
         /* Refuse the same filesystem on the same mount point */
         err = -EBUSY;
-        if (nd->mnt->mnt_sb == newmnt->mnt_sb &&
-            nd->mnt->mnt_root == nd->dentry)
+        if (nd->path.mnt->mnt_sb == newmnt->mnt_sb &&
+            nd->path.mnt->mnt_root == nd->path.dentry)
                 goto unlock;
 
         err = -EINVAL;
@@ -1455,7 +1514,7 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
                 retval = do_new_mount(&nd, type_page, flags, mnt_flags,
                                       dev_name, data_page);
 dput_out:
-        path_release(&nd);
+        path_put(&nd.path);
         return retval;
 }
 
@@ -1502,17 +1561,17 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
         while (p) {
                 q->mnt_ns = new_ns;
                 if (fs) {
-                        if (p == fs->rootmnt) {
+                        if (p == fs->root.mnt) {
                                 rootmnt = p;
-                                fs->rootmnt = mntget(q);
+                                fs->root.mnt = mntget(q);
                         }
-                        if (p == fs->pwdmnt) {
+                        if (p == fs->pwd.mnt) {
                                 pwdmnt = p;
-                                fs->pwdmnt = mntget(q);
+                                fs->pwd.mnt = mntget(q);
                         }
-                        if (p == fs->altrootmnt) {
+                        if (p == fs->altroot.mnt) {
                                 altrootmnt = p;
-                                fs->altrootmnt = mntget(q);
+                                fs->altroot.mnt = mntget(q);
                         }
                 }
                 p = next_mnt(p, mnt_ns->root);
@@ -1593,44 +1652,35 @@ out1:
  * Replace the fs->{rootmnt,root} with {mnt,dentry}. Put the old values.
  * It can block. Requires the big lock held.
  */
-void set_fs_root(struct fs_struct *fs, struct vfsmount *mnt,
-                 struct dentry *dentry)
+void set_fs_root(struct fs_struct *fs, struct path *path)
 {
-        struct dentry *old_root;
-        struct vfsmount *old_rootmnt;
+        struct path old_root;
+
         write_lock(&fs->lock);
         old_root = fs->root;
-        old_rootmnt = fs->rootmnt;
-        fs->rootmnt = mntget(mnt);
-        fs->root = dget(dentry);
+        fs->root = *path;
+        path_get(path);
         write_unlock(&fs->lock);
-        if (old_root) {
-                dput(old_root);
-                mntput(old_rootmnt);
-        }
+        if (old_root.dentry)
+                path_put(&old_root);
 }
 
 /*
  * Replace the fs->{pwdmnt,pwd} with {mnt,dentry}. Put the old values.
  * It can block. Requires the big lock held.
  */
-void set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
-                struct dentry *dentry)
+void set_fs_pwd(struct fs_struct *fs, struct path *path)
 {
-        struct dentry *old_pwd;
-        struct vfsmount *old_pwdmnt;
+        struct path old_pwd;
 
         write_lock(&fs->lock);
         old_pwd = fs->pwd;
-        old_pwdmnt = fs->pwdmnt;
-        fs->pwdmnt = mntget(mnt);
-        fs->pwd = dget(dentry);
+        fs->pwd = *path;
+        path_get(path);
         write_unlock(&fs->lock);
 
-        if (old_pwd) {
-                dput(old_pwd);
-                mntput(old_pwdmnt);
-        }
+        if (old_pwd.dentry)
+                path_put(&old_pwd);
 }
 
 static void chroot_fs_refs(struct nameidata *old_nd, struct nameidata *new_nd)
@@ -1645,12 +1695,12 @@ static void chroot_fs_refs(struct nameidata *old_nd, struct nameidata *new_nd)
                 if (fs) {
                         atomic_inc(&fs->count);
                         task_unlock(p);
-                        if (fs->root == old_nd->dentry
-                            && fs->rootmnt == old_nd->mnt)
-                                set_fs_root(fs, new_nd->mnt, new_nd->dentry);
-                        if (fs->pwd == old_nd->dentry
-                            && fs->pwdmnt == old_nd->mnt)
-                                set_fs_pwd(fs, new_nd->mnt, new_nd->dentry);
+                        if (fs->root.dentry == old_nd->path.dentry
+                            && fs->root.mnt == old_nd->path.mnt)
+                                set_fs_root(fs, &new_nd->path);
+                        if (fs->pwd.dentry == old_nd->path.dentry
+                            && fs->pwd.mnt == old_nd->path.mnt)
+                                set_fs_pwd(fs, &new_nd->path);
                         put_fs_struct(fs);
                 } else
                         task_unlock(p);
@@ -1700,7 +1750,7 @@ asmlinkage long sys_pivot_root(const char __user * new_root,
         if (error)
                 goto out0;
         error = -EINVAL;
-        if (!check_mnt(new_nd.mnt))
+        if (!check_mnt(new_nd.path.mnt))
                 goto out1;
 
         error = __user_walk(put_old, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &old_nd);
@@ -1709,74 +1759,78 @@ asmlinkage long sys_pivot_root(const char __user * new_root,
 
         error = security_sb_pivotroot(&old_nd, &new_nd);
         if (error) {
-                path_release(&old_nd);
+                path_put(&old_nd.path);
                 goto out1;
         }
 
         read_lock(&current->fs->lock);
-        user_nd.mnt = mntget(current->fs->rootmnt);
-        user_nd.dentry = dget(current->fs->root);
+        user_nd.path = current->fs->root;
+        path_get(&current->fs->root);
         read_unlock(&current->fs->lock);
         down_write(&namespace_sem);
-        mutex_lock(&old_nd.dentry->d_inode->i_mutex);
+        mutex_lock(&old_nd.path.dentry->d_inode->i_mutex);
         error = -EINVAL;
-        if (IS_MNT_SHARED(old_nd.mnt) ||
-                IS_MNT_SHARED(new_nd.mnt->mnt_parent) ||
-                IS_MNT_SHARED(user_nd.mnt->mnt_parent))
+        if (IS_MNT_SHARED(old_nd.path.mnt) ||
+                IS_MNT_SHARED(new_nd.path.mnt->mnt_parent) ||
+                IS_MNT_SHARED(user_nd.path.mnt->mnt_parent))
                 goto out2;
-        if (!check_mnt(user_nd.mnt))
+        if (!check_mnt(user_nd.path.mnt))
                 goto out2;
         error = -ENOENT;
-        if (IS_DEADDIR(new_nd.dentry->d_inode))
+        if (IS_DEADDIR(new_nd.path.dentry->d_inode))
                 goto out2;
-        if (d_unhashed(new_nd.dentry) && !IS_ROOT(new_nd.dentry))
+        if (d_unhashed(new_nd.path.dentry) && !IS_ROOT(new_nd.path.dentry))
                 goto out2;
-        if (d_unhashed(old_nd.dentry) && !IS_ROOT(old_nd.dentry))
+        if (d_unhashed(old_nd.path.dentry) && !IS_ROOT(old_nd.path.dentry))
                 goto out2;
         error = -EBUSY;
-        if (new_nd.mnt == user_nd.mnt || old_nd.mnt == user_nd.mnt)
+        if (new_nd.path.mnt == user_nd.path.mnt ||
+            old_nd.path.mnt == user_nd.path.mnt)
                 goto out2; /* loop, on the same file system  */
         error = -EINVAL;
-        if (user_nd.mnt->mnt_root != user_nd.dentry)
+        if (user_nd.path.mnt->mnt_root != user_nd.path.dentry)
                 goto out2; /* not a mountpoint */
-        if (user_nd.mnt->mnt_parent == user_nd.mnt)
+        if (user_nd.path.mnt->mnt_parent == user_nd.path.mnt)
                 goto out2; /* not attached */
-        if (new_nd.mnt->mnt_root != new_nd.dentry)
+        if (new_nd.path.mnt->mnt_root != new_nd.path.dentry)
                 goto out2; /* not a mountpoint */
-        if (new_nd.mnt->mnt_parent == new_nd.mnt)
+        if (new_nd.path.mnt->mnt_parent == new_nd.path.mnt)
                 goto out2; /* not attached */
-        tmp = old_nd.mnt; /* make sure we can reach put_old from new_root */
+        /* make sure we can reach put_old from new_root */
+        tmp = old_nd.path.mnt;
         spin_lock(&vfsmount_lock);
-        if (tmp != new_nd.mnt) {
+        if (tmp != new_nd.path.mnt) {
                 for (;;) {
                         if (tmp->mnt_parent == tmp)
                                 goto out3; /* already mounted on put_old */
-                        if (tmp->mnt_parent == new_nd.mnt)
+                        if (tmp->mnt_parent == new_nd.path.mnt)
                                 break;
                         tmp = tmp->mnt_parent;
                 }
-                if (!is_subdir(tmp->mnt_mountpoint, new_nd.dentry))
+                if (!is_subdir(tmp->mnt_mountpoint, new_nd.path.dentry))
                         goto out3;
-        } else if (!is_subdir(old_nd.dentry, new_nd.dentry))
+        } else if (!is_subdir(old_nd.path.dentry, new_nd.path.dentry))
                 goto out3;
-        detach_mnt(new_nd.mnt, &parent_nd);
-        detach_mnt(user_nd.mnt, &root_parent);
-        attach_mnt(user_nd.mnt, &old_nd);     /* mount old root on put_old */
-        attach_mnt(new_nd.mnt, &root_parent); /* mount new_root on / */
+        detach_mnt(new_nd.path.mnt, &parent_nd);
+        detach_mnt(user_nd.path.mnt, &root_parent);
+        /* mount old root on put_old */
+        attach_mnt(user_nd.path.mnt, &old_nd);
+        /* mount new_root on / */
+        attach_mnt(new_nd.path.mnt, &root_parent);
         touch_mnt_namespace(current->nsproxy->mnt_ns);
         spin_unlock(&vfsmount_lock);
         chroot_fs_refs(&user_nd, &new_nd);
         security_sb_post_pivotroot(&user_nd, &new_nd);
         error = 0;
-        path_release(&root_parent);
-        path_release(&parent_nd);
+        path_put(&root_parent.path);
+        path_put(&parent_nd.path);
 out2:
-        mutex_unlock(&old_nd.dentry->d_inode->i_mutex);
+        mutex_unlock(&old_nd.path.dentry->d_inode->i_mutex);
         up_write(&namespace_sem);
-        path_release(&user_nd);
-        path_release(&old_nd);
+        path_put(&user_nd.path);
+        path_put(&old_nd.path);
 out1:
-        path_release(&new_nd);
+        path_put(&new_nd.path);
 out0:
         unlock_kernel();
         return error;
@@ -1789,6 +1843,7 @@ static void __init init_mount_tree(void)
 {
         struct vfsmount *mnt;
         struct mnt_namespace *ns;
+        struct path root;
 
         mnt = do_kern_mount("rootfs", 0, "rootfs", NULL);
         if (IS_ERR(mnt))
@@ -1807,15 +1862,16 @@ static void __init init_mount_tree(void)
         init_task.nsproxy->mnt_ns = ns;
         get_mnt_ns(ns);
 
-        set_fs_pwd(current->fs, ns->root, ns->root->mnt_root);
-        set_fs_root(current->fs, ns->root, ns->root->mnt_root);
+        root.mnt = ns->root;
+        root.dentry = ns->root->mnt_root;
+
+        set_fs_pwd(current->fs, &root);
+        set_fs_root(current->fs, &root);
 }
 
 void __init mnt_init(void)
 {
-        struct list_head *d;
-        unsigned int nr_hash;
-        int i;
+        unsigned u;
         int err;
 
         init_rwsem(&namespace_sem);
@@ -1828,35 +1884,11 @@ void __init mnt_init(void)
         if (!mount_hashtable)
                 panic("Failed to allocate mount hash table\n");
 
-        /*
-         * Find the power-of-two list-heads that can fit into the allocation..
-         * We don't guarantee that "sizeof(struct list_head)" is necessarily
-         * a power-of-two.
-         */
-        nr_hash = PAGE_SIZE / sizeof(struct list_head);
-        hash_bits = 0;
-        do {
-                hash_bits++;
-        } while ((nr_hash >> hash_bits) != 0);
-        hash_bits--;
+        printk("Mount-cache hash table entries: %lu\n", HASH_SIZE);
+
+        for (u = 0; u < HASH_SIZE; u++)
+                INIT_LIST_HEAD(&mount_hashtable[u]);
 
-        /*
-         * Re-calculate the actual number of entries and the mask
-         * from the number of bits we can fit.
-         */
-        nr_hash = 1UL << hash_bits;
-        hash_mask = nr_hash - 1;
-
-        printk("Mount-cache hash table entries: %d\n", nr_hash);
-
-        /* And initialize the newly allocated array */
-        d = mount_hashtable;
-        i = nr_hash;
-        do {
-                INIT_LIST_HEAD(d);
-                d++;
-                i--;
-        } while (i);
         err = sysfs_init();
         if (err)
                 printk(KERN_WARNING "%s: sysfs_init error: %d\n",
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index e1cb70c643f8..fbbb9f7afa1a 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -28,6 +28,8 @@
 #include <linux/init.h>
 #include <linux/smp_lock.h>
 #include <linux/vfs.h>
+#include <linux/mount.h>
+#include <linux/seq_file.h>
 
 #include <linux/ncp_fs.h>
 
@@ -36,9 +38,15 @@
 #include "ncplib_kernel.h"
 #include "getopt.h"
 
+#define NCP_DEFAULT_FILE_MODE 0600
+#define NCP_DEFAULT_DIR_MODE 0700
+#define NCP_DEFAULT_TIME_OUT 10
+#define NCP_DEFAULT_RETRY_COUNT 20
+
 static void ncp_delete_inode(struct inode *);
 static void ncp_put_super(struct super_block *);
 static int  ncp_statfs(struct dentry *, struct kstatfs *);
+static int  ncp_show_options(struct seq_file *, struct vfsmount *);
 
 static struct kmem_cache * ncp_inode_cachep;
 
@@ -96,6 +104,7 @@ static const struct super_operations ncp_sops =
         .put_super      = ncp_put_super,
         .statfs         = ncp_statfs,
         .remount_fs     = ncp_remount,
+        .show_options   = ncp_show_options,
 };
 
 extern struct dentry_operations ncp_root_dentry_operations;
@@ -304,6 +313,37 @@ static void ncp_stop_tasks(struct ncp_server *server) {
         flush_scheduled_work();
 }
 
+static int  ncp_show_options(struct seq_file *seq, struct vfsmount *mnt)
+{
+        struct ncp_server *server = NCP_SBP(mnt->mnt_sb);
+        unsigned int tmp;
+
+        if (server->m.uid != 0)
+                seq_printf(seq, ",uid=%u", server->m.uid);
+        if (server->m.gid != 0)
+                seq_printf(seq, ",gid=%u", server->m.gid);
+        if (server->m.mounted_uid != 0)
+                seq_printf(seq, ",owner=%u", server->m.mounted_uid);
+        tmp = server->m.file_mode & S_IALLUGO;
+        if (tmp != NCP_DEFAULT_FILE_MODE)
+                seq_printf(seq, ",mode=0%o", tmp);
+        tmp = server->m.dir_mode & S_IALLUGO;
+        if (tmp != NCP_DEFAULT_DIR_MODE)
+                seq_printf(seq, ",dirmode=0%o", tmp);
+        if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) {
+                tmp = server->m.time_out * 100 / HZ;
+                seq_printf(seq, ",timeout=%u", tmp);
+        }
+        if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT)
+                seq_printf(seq, ",retry=%u", server->m.retry_count);
+        if (server->m.flags != 0)
+                seq_printf(seq, ",flags=%lu", server->m.flags);
+        if (server->m.wdog_pid != NULL)
+                seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid));
+
+        return 0;
+}
+
 static const struct ncp_option ncp_opts[] = {
         { "uid",        OPT_INT,        'u' },
         { "gid",        OPT_INT,        'g' },
@@ -331,12 +371,12 @@ static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options)
         data->mounted_uid = 0;
         data->wdog_pid = NULL;
         data->ncp_fd = ~0;
-        data->time_out = 10;
-        data->retry_count = 20;
+        data->time_out = NCP_DEFAULT_TIME_OUT;
+        data->retry_count = NCP_DEFAULT_RETRY_COUNT;
         data->uid = 0;
         data->gid = 0;
-        data->file_mode = 0600;
-        data->dir_mode = 0700;
+        data->file_mode = NCP_DEFAULT_FILE_MODE;
+        data->dir_mode = NCP_DEFAULT_DIR_MODE;
         data->info_fd = -1;
         data->mounted_vol[0] = 0;
         
@@ -982,12 +1022,13 @@ static struct file_system_type ncp_fs_type = {
         .name           = "ncpfs",
         .get_sb         = ncp_get_sb,
         .kill_sb        = kill_anon_super,
+        .fs_flags       = FS_BINARY_MOUNTDATA,
 };
 
 static int __init init_ncp_fs(void)
 {
         int err;
-        DPRINTK("ncpfs: init_module called\n");
+        DPRINTK("ncpfs: init_ncp_fs called\n");
 
         err = init_inodecache();
         if (err)
@@ -1004,7 +1045,7 @@ out1:
 
 static void __exit exit_ncp_fs(void)
 {
-        DPRINTK("ncpfs: cleanup_module called\n");
+        DPRINTK("ncpfs: exit_ncp_fs called\n");
         unregister_filesystem(&ncp_fs_type);
         destroy_inodecache();
 }
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index bd185a572a23..ecc06c619494 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -105,7 +105,7 @@ static void nfs_callback_svc(struct svc_rqst *rqstp)
  */
 int nfs_callback_up(void)
 {
-        struct svc_serv *serv;
+        struct svc_serv *serv = NULL;
         int ret = 0;
 
         lock_kernel();
@@ -122,24 +122,30 @@ int nfs_callback_up(void)
         ret = svc_create_xprt(serv, "tcp", nfs_callback_set_tcpport,
                               SVC_SOCK_ANONYMOUS);
         if (ret <= 0)
-                goto out_destroy;
+                goto out_err;
         nfs_callback_tcpport = ret;
         dprintk("Callback port = 0x%x\n", nfs_callback_tcpport);
 
         ret = svc_create_thread(nfs_callback_svc, serv);
         if (ret < 0)
-                goto out_destroy;
+                goto out_err;
         nfs_callback_info.serv = serv;
         wait_for_completion(&nfs_callback_info.started);
 out:
+        /*
+         * svc_create creates the svc_serv with sv_nrthreads == 1, and then
+         * svc_create_thread increments that. So we need to call svc_destroy
+         * on both success and failure so that the refcount is 1 when the
+         * thread exits.
+         */
+        if (serv)
+                svc_destroy(serv);
         mutex_unlock(&nfs_callback_mutex);
         unlock_kernel();
         return ret;
-out_destroy:
+out_err:
         dprintk("Couldn't create callback socket or server thread; err = %d\n",
                 ret);
-        svc_destroy(serv);
-out_err:
         nfs_callback_info.users--;
         goto out;
 }
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 476cb0f837fd..ae04892a5e5d 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -154,7 +154,6 @@ typedef struct {
         struct nfs_entry *entry;
         decode_dirent_t decode;
         int             plus;
-        int             error;
         unsigned long   timestamp;
         int             timestamp_valid;
 } nfs_readdir_descriptor_t;
@@ -213,7 +212,6 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
         return 0;
  error:
         unlock_page(page);
-        desc->error = error;
         return -EIO;
 }
 
@@ -483,13 +481,13 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
                 goto out;
         }
         timestamp = jiffies;
-        desc->error = NFS_PROTO(inode)->readdir(file->f_path.dentry, cred, *desc->dir_cookie,
-                                                page,
+        status = NFS_PROTO(inode)->readdir(file->f_path.dentry, cred,
+                                                *desc->dir_cookie, page,
                                                 NFS_SERVER(inode)->dtsize,
                                                 desc->plus);
         desc->page = page;
         desc->ptr = kmap(page);         /* matching kunmap in nfs_do_filldir */
-        if (desc->error >= 0) {
+        if (status >= 0) {
                 desc->timestamp = timestamp;
                 desc->timestamp_valid = 1;
                 if ((status = dir_decode(desc)) == 0)
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index e6242cdbaf91..fae97196daad 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -96,7 +96,7 @@ struct dentry *nfs_get_root(struct super_block *sb, struct nfs_fh *mntfh)
         inode = nfs_fhget(sb, mntfh, fsinfo.fattr);
         if (IS_ERR(inode)) {
                 dprintk("nfs_get_root: get root inode failed\n");
-                return ERR_PTR(PTR_ERR(inode));
+                return ERR_CAST(inode);
         }
 
         error = nfs_superblock_set_dummy_root(sb, inode);
@@ -266,7 +266,7 @@ struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh)
         inode = nfs_fhget(sb, mntfh, &fattr);
         if (IS_ERR(inode)) {
                 dprintk("nfs_get_root: get root inode failed\n");
-                return ERR_PTR(PTR_ERR(inode));
+                return ERR_CAST(inode);
         }
 
         error = nfs_superblock_set_dummy_root(sb, inode);
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index be4ce1c3a3d8..607f6eb9cdb5 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -107,38 +107,40 @@ static void * nfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
 
         BUG_ON(IS_ROOT(dentry));
         dprintk("%s: enter\n", __FUNCTION__);
-        dput(nd->dentry);
-        nd->dentry = dget(dentry);
+        dput(nd->path.dentry);
+        nd->path.dentry = dget(dentry);
 
         /* Look it up again */
-        parent = dget_parent(nd->dentry);
+        parent = dget_parent(nd->path.dentry);
         err = server->nfs_client->rpc_ops->lookup(parent->d_inode,
-                                                  &nd->dentry->d_name,
+                                                  &nd->path.dentry->d_name,
                                                   &fh, &fattr);
         dput(parent);
         if (err != 0)
                 goto out_err;
 
         if (fattr.valid & NFS_ATTR_FATTR_V4_REFERRAL)
-                mnt = nfs_do_refmount(nd->mnt, nd->dentry);
+                mnt = nfs_do_refmount(nd->path.mnt, nd->path.dentry);
         else
-                mnt = nfs_do_submount(nd->mnt, nd->dentry, &fh, &fattr);
+                mnt = nfs_do_submount(nd->path.mnt, nd->path.dentry, &fh,
+                                      &fattr);
         err = PTR_ERR(mnt);
         if (IS_ERR(mnt))
                 goto out_err;
 
         mntget(mnt);
-        err = do_add_mount(mnt, nd, nd->mnt->mnt_flags|MNT_SHRINKABLE, &nfs_automount_list);
+        err = do_add_mount(mnt, nd, nd->path.mnt->mnt_flags|MNT_SHRINKABLE,
+                           &nfs_automount_list);
         if (err < 0) {
                 mntput(mnt);
                 if (err == -EBUSY)
                         goto out_follow;
                 goto out_err;
         }
-        mntput(nd->mnt);
-        dput(nd->dentry);
-        nd->mnt = mnt;
-        nd->dentry = dget(mnt->mnt_root);
+        mntput(nd->path.mnt);
+        dput(nd->path.dentry);
+        nd->path.mnt = mnt;
+        nd->path.dentry = dget(mnt->mnt_root);
         schedule_delayed_work(&nfs_automount_task, nfs_mountpoint_expiry_timeout);
 out:
         dprintk("%s: done, returned %d\n", __FUNCTION__, err);
@@ -146,10 +148,11 @@ out:
         dprintk("<-- nfs_follow_mountpoint() = %d\n", err);
         return ERR_PTR(err);
 out_err:
-        path_release(nd);
+        path_put(&nd->path);
         goto out;
 out_follow:
-        while(d_mountpoint(nd->dentry) && follow_down(&nd->mnt, &nd->dentry))
+        while (d_mountpoint(nd->path.dentry) &&
+               follow_down(&nd->path.mnt, &nd->path.dentry))
                 ;
         err = 0;
         goto out;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 027e1095256e..7ce07862c2fb 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1384,11 +1384,11 @@ out_close:
 struct dentry *
 nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
-        struct dentry *parent;
         struct path path = {
-                .mnt = nd->mnt,
+                .mnt = nd->path.mnt,
                 .dentry = dentry,
         };
+        struct dentry *parent;
         struct iattr attr;
         struct rpc_cred *cred;
         struct nfs4_state *state;
@@ -1433,7 +1433,7 @@ int
 nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, struct nameidata *nd)
 {
         struct path path = {
-                .mnt = nd->mnt,
+                .mnt = nd->path.mnt,
                 .dentry = dentry,
         };
         struct rpc_cred *cred;
@@ -1885,7 +1885,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
                  int flags, struct nameidata *nd)
 {
         struct path path = {
-                .mnt = nd->mnt,
+                .mnt = nd->path.mnt,
                 .dentry = dentry,
         };
         struct nfs4_state *state;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index f9c7432471dc..6233eb5e98c1 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -682,8 +682,8 @@ static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
                         if (seqid->sequence->flags & NFS_SEQID_CONFIRMED)
                                 return;
                         printk(KERN_WARNING "NFS: v4 server returned a bad"
-                                        "sequence-id error on an"
-                                        "unconfirmed sequence %p!\n",
+                                        " sequence-id error on an"
+                                        " unconfirmed sequence %p!\n",
                                         seqid->sequence);
                 case -NFS4ERR_STALE_CLIENTID:
                 case -NFS4ERR_STALE_STATEID:
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 8fd6dfbe1bc3..3d7d9631e125 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -79,7 +79,7 @@ void nfs_readdata_release(void *data)
 static
 int nfs_return_empty_page(struct page *page)
 {
-        zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
+        zero_user(page, 0, PAGE_CACHE_SIZE);
         SetPageUptodate(page);
         unlock_page(page);
         return 0;
@@ -103,10 +103,10 @@ static void nfs_readpage_truncate_uninitialised_page(struct nfs_read_data *data)
         pglen = PAGE_CACHE_SIZE - base;
         for (;;) {
                 if (remainder <= pglen) {
-                        zero_user_page(*pages, base, remainder, KM_USER0);
+                        zero_user(*pages, base, remainder);
                         break;
                 }
-                zero_user_page(*pages, base, pglen, KM_USER0);
+                zero_user(*pages, base, pglen);
                 pages++;
                 remainder -= pglen;
                 pglen = PAGE_CACHE_SIZE;
@@ -130,7 +130,7 @@ static int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode,
                 return PTR_ERR(new);
         }
         if (len < PAGE_CACHE_SIZE)
-                zero_user_page(page, len, PAGE_CACHE_SIZE - len, KM_USER0);
+                zero_user_segment(page, len, PAGE_CACHE_SIZE);
 
         nfs_list_add_request(new, &one_request);
         if (NFS_SERVER(inode)->rsize < PAGE_CACHE_SIZE)
@@ -532,7 +532,7 @@ readpage_async_filler(void *data, struct page *page)
                 goto out_error;
 
         if (len < PAGE_CACHE_SIZE)
-                zero_user_page(page, len, PAGE_CACHE_SIZE - len, KM_USER0);
+                zero_user_segment(page, len, PAGE_CACHE_SIZE);
         nfs_pageio_add_request(desc->pgio, new);
         return 0;
 out_error:
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 7f4505f6ac6f..1fb381843650 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -190,6 +190,10 @@ static match_table_t nfs_secflavor_tokens = {
         { Opt_sec_lkeyi, "lkeyi" },
         { Opt_sec_lkeyp, "lkeyp" },
 
+        { Opt_sec_spkm, "spkm3" },
+        { Opt_sec_spkmi, "spkm3i" },
+        { Opt_sec_spkmp, "spkm3p" },
+
         { Opt_sec_err, NULL }
 };
 
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 522efff3e2c5..f55c437124a2 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -665,9 +665,7 @@ zero_page:
          * then we need to zero any uninitalised data. */
         if (req->wb_pgbase == 0 && req->wb_bytes != PAGE_CACHE_SIZE
                         && !PageUptodate(req->wb_page))
-                zero_user_page(req->wb_page, req->wb_bytes,
-                                PAGE_CACHE_SIZE - req->wb_bytes,
-                                KM_USER0);
+                zero_user_segment(req->wb_page, req->wb_bytes, PAGE_CACHE_SIZE);
         return req;
 }
 
@@ -699,6 +697,17 @@ int nfs_flush_incompatible(struct file *file, struct page *page)
 }
 
 /*
+ * If the page cache is marked as unsafe or invalid, then we can't rely on
+ * the PageUptodate() flag. In this case, we will need to turn off
+ * write optimisations that depend on the page contents being correct.
+ */
+static int nfs_write_pageuptodate(struct page *page, struct inode *inode)
+{
+        return PageUptodate(page) &&
+                !(NFS_I(inode)->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA));
+}
+
+/*
  * Update and possibly write a cached page of an NFS file.
  *
  * XXX: Keep an eye on generic_file_read to make sure it doesn't do bad
@@ -719,10 +728,13 @@ int nfs_updatepage(struct file *file, struct page *page,
                 (long long)(page_offset(page) +offset));
 
         /* If we're not using byte range locks, and we know the page
-         * is entirely in cache, it may be more efficient to avoid
-         * fragmenting write requests.
+         * is up to date, it may be more efficient to extend the write
+         * to cover the entire page in order to avoid fragmentation
+         * inefficiencies.
          */
-        if (PageUptodate(page) && inode->i_flock == NULL && !(file->f_mode & O_SYNC)) {
+        if (nfs_write_pageuptodate(page, inode) &&
+                        inode->i_flock == NULL &&
+                        !(file->f_mode & O_SYNC)) {
                 count = max(count + offset, nfs_page_length(page));
                 offset = 0;
         }
diff --git a/fs/nfsctl.c b/fs/nfsctl.c
index 51f1b31acbf6..aed8145d9087 100644
--- a/fs/nfsctl.c
+++ b/fs/nfsctl.c
@@ -41,9 +41,9 @@ static struct file *do_open(char *name, int flags)
                 error = may_open(&nd, MAY_WRITE, FMODE_WRITE);
 
         if (!error)
-                return dentry_open(nd.dentry, nd.mnt, flags);
+                return dentry_open(nd.path.dentry, nd.path.mnt, flags);
 
-        path_release(&nd);
+        path_put(&nd.path);
         return ERR_PTR(error);
 }
 
diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c
index 21928056e35e..d13403e33622 100644
--- a/fs/nfsd/auth.c
+++ b/fs/nfsd/auth.c
@@ -11,8 +11,6 @@
 #include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/export.h>
 
-#define CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE))
-
 int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
 {
         struct exp_flavor_info *f;
@@ -69,10 +67,12 @@ int nfsd_setuser(struct svc_rqst *rqstp, struct svc_export *exp)
         ret = set_current_groups(cred.cr_group_info);
         put_group_info(cred.cr_group_info);
         if ((cred.cr_uid)) {
-                cap_t(current->cap_effective) &= ~CAP_NFSD_MASK;
+                current->cap_effective =
+                        cap_drop_nfsd_set(current->cap_effective);
         } else {
-                cap_t(current->cap_effective) |= (CAP_NFSD_MASK &
-                                                  current->cap_permitted);
+                current->cap_effective =
+                        cap_raise_nfsd_set(current->cap_effective,
+                                           current->cap_permitted);
         }
         return ret;
 }
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 79b4bf812960..8a6f7c924c75 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -63,10 +63,8 @@ static void expkey_put(struct kref *ref)
         struct svc_expkey *key = container_of(ref, struct svc_expkey, h.ref);
 
         if (test_bit(CACHE_VALID, &key->h.flags) &&
-            !test_bit(CACHE_NEGATIVE, &key->h.flags)) {
-                dput(key->ek_dentry);
-                mntput(key->ek_mnt);
-        }
+            !test_bit(CACHE_NEGATIVE, &key->h.flags))
+                path_put(&key->ek_path);
         auth_domain_put(key->ek_client);
         kfree(key);
 }
@@ -169,15 +167,14 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
                         goto out;
 
                 dprintk("Found the path %s\n", buf);
-                key.ek_mnt = nd.mnt;
-                key.ek_dentry = nd.dentry;
-                
+                key.ek_path = nd.path;
+
                 ek = svc_expkey_update(&key, ek);
                 if (ek)
                         cache_put(&ek->h, &svc_expkey_cache);
                 else
                         err = -ENOMEM;
-                path_release(&nd);
+                path_put(&nd.path);
         }
         cache_flush();
  out:
@@ -206,7 +203,7 @@ static int expkey_show(struct seq_file *m,
         if (test_bit(CACHE_VALID, &h->flags) && 
             !test_bit(CACHE_NEGATIVE, &h->flags)) {
                 seq_printf(m, " ");
-                seq_path(m, ek->ek_mnt, ek->ek_dentry, "\\ \t\n");
+                seq_path(m, &ek->ek_path, "\\ \t\n");
         }
         seq_printf(m, "\n");
         return 0;
@@ -243,8 +240,8 @@ static inline void expkey_update(struct cache_head *cnew,
         struct svc_expkey *new = container_of(cnew, struct svc_expkey, h);
         struct svc_expkey *item = container_of(citem, struct svc_expkey, h);
 
-        new->ek_mnt = mntget(item->ek_mnt);
-        new->ek_dentry = dget(item->ek_dentry);
+        new->ek_path = item->ek_path;
+        path_get(&item->ek_path);
 }
 
 static struct cache_head *expkey_alloc(void)
@@ -332,10 +329,9 @@ static void nfsd4_fslocs_free(struct nfsd4_fs_locations *fsloc)
 static void svc_export_put(struct kref *ref)
 {
         struct svc_export *exp = container_of(ref, struct svc_export, h.ref);
-        dput(exp->ex_dentry);
-        mntput(exp->ex_mnt);
+        path_put(&exp->ex_path);
         auth_domain_put(exp->ex_client);
-        kfree(exp->ex_path);
+        kfree(exp->ex_pathname);
         nfsd4_fslocs_free(&exp->ex_fslocs);
         kfree(exp);
 }
@@ -349,7 +345,7 @@ static void svc_export_request(struct cache_detail *cd,
         char *pth;
 
         qword_add(bpp, blen, exp->ex_client->name);
-        pth = d_path(exp->ex_dentry, exp->ex_mnt, *bpp, *blen);
+        pth = d_path(&exp->ex_path, *bpp, *blen);
         if (IS_ERR(pth)) {
                 /* is this correct? */
                 (*bpp)[0] = '\n';
@@ -507,8 +503,8 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
         struct svc_export exp, *expp;
         int an_int;
 
-        nd.dentry = NULL;
-        exp.ex_path = NULL;
+        nd.path.dentry = NULL;
+        exp.ex_pathname = NULL;
 
         /* fs locations */
         exp.ex_fslocs.locations = NULL;
@@ -547,11 +543,11 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 
         exp.h.flags = 0;
         exp.ex_client = dom;
-        exp.ex_mnt = nd.mnt;
-        exp.ex_dentry = nd.dentry;
-        exp.ex_path = kstrdup(buf, GFP_KERNEL);
+        exp.ex_path.mnt = nd.path.mnt;
+        exp.ex_path.dentry = nd.path.dentry;
+        exp.ex_pathname = kstrdup(buf, GFP_KERNEL);
         err = -ENOMEM;
-        if (!exp.ex_path)
+        if (!exp.ex_pathname)
                 goto out;
 
         /* expiry */
@@ -610,7 +606,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
                                 goto out;
                 }
 
-                err = check_export(nd.dentry->d_inode, exp.ex_flags,
+                err = check_export(nd.path.dentry->d_inode, exp.ex_flags,
                                    exp.ex_uuid);
                 if (err) goto out;
         }
@@ -628,9 +624,9 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
  out:
         nfsd4_fslocs_free(&exp.ex_fslocs);
         kfree(exp.ex_uuid);
-        kfree(exp.ex_path);
-        if (nd.dentry)
-                path_release(&nd);
+        kfree(exp.ex_pathname);
+        if (nd.path.dentry)
+                path_put(&nd.path);
  out_no_path:
         if (dom)
                 auth_domain_put(dom);
@@ -653,7 +649,7 @@ static int svc_export_show(struct seq_file *m,
                 return 0;
         }
         exp = container_of(h, struct svc_export, h);
-        seq_path(m, exp->ex_mnt, exp->ex_dentry, " \t\n\\");
+        seq_path(m, &exp->ex_path, " \t\n\\");
         seq_putc(m, '\t');
         seq_escape(m, exp->ex_client->name, " \t\n\\");
         seq_putc(m, '(');
@@ -680,8 +676,8 @@ static int svc_export_match(struct cache_head *a, struct cache_head *b)
         struct svc_export *orig = container_of(a, struct svc_export, h);
         struct svc_export *new = container_of(b, struct svc_export, h);
         return orig->ex_client == new->ex_client &&
-                orig->ex_dentry == new->ex_dentry &&
-                orig->ex_mnt == new->ex_mnt;
+                orig->ex_path.dentry == new->ex_path.dentry &&
+                orig->ex_path.mnt == new->ex_path.mnt;
 }
 
 static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
@@ -691,9 +687,9 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
 
         kref_get(&item->ex_client->ref);
         new->ex_client = item->ex_client;
-        new->ex_dentry = dget(item->ex_dentry);
-        new->ex_mnt = mntget(item->ex_mnt);
-        new->ex_path = NULL;
+        new->ex_path.dentry = dget(item->ex_path.dentry);
+        new->ex_path.mnt = mntget(item->ex_path.mnt);
+        new->ex_pathname = NULL;
         new->ex_fslocs.locations = NULL;
         new->ex_fslocs.locations_count = 0;
         new->ex_fslocs.migrated = 0;
@@ -711,8 +707,8 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem)
         new->ex_fsid = item->ex_fsid;
         new->ex_uuid = item->ex_uuid;
         item->ex_uuid = NULL;
-        new->ex_path = item->ex_path;
-        item->ex_path = NULL;
+        new->ex_pathname = item->ex_pathname;
+        item->ex_pathname = NULL;
         new->ex_fslocs.locations = item->ex_fslocs.locations;
         item->ex_fslocs.locations = NULL;
         new->ex_fslocs.locations_count = item->ex_fslocs.locations_count;
@@ -755,8 +751,8 @@ svc_export_lookup(struct svc_export *exp)
         struct cache_head *ch;
         int hash;
         hash = hash_ptr(exp->ex_client, EXPORT_HASHBITS);
-        hash ^= hash_ptr(exp->ex_dentry, EXPORT_HASHBITS);
-        hash ^= hash_ptr(exp->ex_mnt, EXPORT_HASHBITS);
+        hash ^= hash_ptr(exp->ex_path.dentry, EXPORT_HASHBITS);
+        hash ^= hash_ptr(exp->ex_path.mnt, EXPORT_HASHBITS);
 
         ch = sunrpc_cache_lookup(&svc_export_cache, &exp->h,
                                  hash);
@@ -772,8 +768,8 @@ svc_export_update(struct svc_export *new, struct svc_export *old)
         struct cache_head *ch;
         int hash;
         hash = hash_ptr(old->ex_client, EXPORT_HASHBITS);
-        hash ^= hash_ptr(old->ex_dentry, EXPORT_HASHBITS);
-        hash ^= hash_ptr(old->ex_mnt, EXPORT_HASHBITS);
+        hash ^= hash_ptr(old->ex_path.dentry, EXPORT_HASHBITS);
+        hash ^= hash_ptr(old->ex_path.mnt, EXPORT_HASHBITS);
 
         ch = sunrpc_cache_update(&svc_export_cache, &new->h,
                                  &old->h,
@@ -815,8 +811,7 @@ static int exp_set_key(svc_client *clp, int fsid_type, u32 *fsidv,
         key.ek_client = clp;
         key.ek_fsidtype = fsid_type;
         memcpy(key.ek_fsid, fsidv, key_len(fsid_type));
-        key.ek_mnt = exp->ex_mnt;
-        key.ek_dentry = exp->ex_dentry;
+        key.ek_path = exp->ex_path;
         key.h.expiry_time = NEVER;
         key.h.flags = 0;
 
@@ -865,13 +860,13 @@ static svc_export *exp_get_by_name(svc_client *clp, struct vfsmount *mnt,
 {
         struct svc_export *exp, key;
         int err;
-        
+
         if (!clp)
                 return ERR_PTR(-ENOENT);
 
         key.ex_client = clp;
-        key.ex_mnt = mnt;
-        key.ex_dentry = dentry;
+        key.ex_path.mnt = mnt;
+        key.ex_path.dentry = dentry;
 
         exp = svc_export_lookup(&key);
         if (exp == NULL)
@@ -968,7 +963,7 @@ static int exp_fsid_hash(svc_client *clp, struct svc_export *exp)
 static int exp_hash(struct auth_domain *clp, struct svc_export *exp)
 {
         u32 fsid[2];
-        struct inode *inode = exp->ex_dentry->d_inode;
+        struct inode *inode = exp->ex_path.dentry->d_inode;
         dev_t dev = inode->i_sb->s_dev;
 
         if (old_valid_dev(dev)) {
@@ -982,7 +977,7 @@ static int exp_hash(struct auth_domain *clp, struct svc_export *exp)
 static void exp_unhash(struct svc_export *exp)
 {
         struct svc_expkey *ek;
-        struct inode *inode = exp->ex_dentry->d_inode;
+        struct inode *inode = exp->ex_path.dentry->d_inode;
 
         ek = exp_get_key(exp->ex_client, inode->i_sb->s_dev, inode->i_ino);
         if (!IS_ERR(ek)) {
@@ -1030,15 +1025,16 @@ exp_export(struct nfsctl_export *nxp)
                 goto out_unlock;
         err = -EINVAL;
 
-        exp = exp_get_by_name(clp, nd.mnt, nd.dentry, NULL);
+        exp = exp_get_by_name(clp, nd.path.mnt, nd.path.dentry, NULL);
 
         memset(&new, 0, sizeof(new));
 
         /* must make sure there won't be an ex_fsid clash */
         if ((nxp->ex_flags & NFSEXP_FSID) &&
             (!IS_ERR(fsid_key = exp_get_fsid_key(clp, nxp->ex_dev))) &&
-            fsid_key->ek_mnt &&
-            (fsid_key->ek_mnt != nd.mnt || fsid_key->ek_dentry != nd.dentry) )
+            fsid_key->ek_path.mnt &&
+            (fsid_key->ek_path.mnt != nd.path.mnt ||
+             fsid_key->ek_path.dentry != nd.path.dentry))
                 goto finish;
 
         if (!IS_ERR(exp)) {
@@ -1054,7 +1050,7 @@ exp_export(struct nfsctl_export *nxp)
                 goto finish;
         }
 
-        err = check_export(nd.dentry->d_inode, nxp->ex_flags, NULL);
+        err = check_export(nd.path.dentry->d_inode, nxp->ex_flags, NULL);
         if (err) goto finish;
 
         err = -ENOMEM;
@@ -1063,12 +1059,11 @@ exp_export(struct nfsctl_export *nxp)
 
         new.h.expiry_time = NEVER;
         new.h.flags = 0;
-        new.ex_path = kstrdup(nxp->ex_path, GFP_KERNEL);
-        if (!new.ex_path)
+        new.ex_pathname = kstrdup(nxp->ex_path, GFP_KERNEL);
+        if (!new.ex_pathname)
                 goto finish;
         new.ex_client = clp;
-        new.ex_mnt = nd.mnt;
-        new.ex_dentry = nd.dentry;
+        new.ex_path = nd.path;
         new.ex_flags = nxp->ex_flags;
         new.ex_anon_uid = nxp->ex_anon_uid;
         new.ex_anon_gid = nxp->ex_anon_gid;
@@ -1089,15 +1084,14 @@ exp_export(struct nfsctl_export *nxp)
         } else
                 err = 0;
 finish:
-        if (new.ex_path)
-                kfree(new.ex_path);
+        kfree(new.ex_pathname);
         if (exp)
                 exp_put(exp);
         if (fsid_key && !IS_ERR(fsid_key))
                 cache_put(&fsid_key->h, &svc_expkey_cache);
         if (clp)
                 auth_domain_put(clp);
-        path_release(&nd);
+        path_put(&nd.path);
 out_unlock:
         exp_writeunlock();
 out:
@@ -1148,8 +1142,8 @@ exp_unexport(struct nfsctl_export *nxp)
                 goto out_domain;
 
         err = -EINVAL;
-        exp = exp_get_by_name(dom, nd.mnt, nd.dentry, NULL);
-        path_release(&nd);
+        exp = exp_get_by_name(dom, nd.path.mnt, nd.path.dentry, NULL);
+        path_put(&nd.path);
         if (IS_ERR(exp))
                 goto out_domain;
 
@@ -1185,12 +1179,12 @@ exp_rootfh(svc_client *clp, char *path, struct knfsd_fh *f, int maxsize)
                 printk("nfsd: exp_rootfh path not found %s", path);
                 return err;
         }
-        inode = nd.dentry->d_inode;
+        inode = nd.path.dentry->d_inode;
 
         dprintk("nfsd: exp_rootfh(%s [%p] %s:%s/%ld)\n",
-                 path, nd.dentry, clp->name,
+                 path, nd.path.dentry, clp->name,
                  inode->i_sb->s_id, inode->i_ino);
-        exp = exp_parent(clp, nd.mnt, nd.dentry, NULL);
+        exp = exp_parent(clp, nd.path.mnt, nd.path.dentry, NULL);
         if (IS_ERR(exp)) {
                 err = PTR_ERR(exp);
                 goto out;
@@ -1200,7 +1194,7 @@ exp_rootfh(svc_client *clp, char *path, struct knfsd_fh *f, int maxsize)
          * fh must be initialized before calling fh_compose
          */
         fh_init(&fh, maxsize);
-        if (fh_compose(&fh, exp, nd.dentry, NULL))
+        if (fh_compose(&fh, exp, nd.path.dentry, NULL))
                 err = -EINVAL;
         else
                 err = 0;
@@ -1208,7 +1202,7 @@ exp_rootfh(svc_client *clp, char *path, struct knfsd_fh *f, int maxsize)
         fh_put(&fh);
         exp_put(exp);
 out:
-        path_release(&nd);
+        path_put(&nd.path);
         return err;
 }
 
@@ -1218,13 +1212,13 @@ static struct svc_export *exp_find(struct auth_domain *clp, int fsid_type,
         struct svc_export *exp;
         struct svc_expkey *ek = exp_find_key(clp, fsid_type, fsidv, reqp);
         if (IS_ERR(ek))
-                return ERR_PTR(PTR_ERR(ek));
+                return ERR_CAST(ek);
 
-        exp = exp_get_by_name(clp, ek->ek_mnt, ek->ek_dentry, reqp);
+        exp = exp_get_by_name(clp, ek->ek_path.mnt, ek->ek_path.dentry, reqp);
         cache_put(&ek->h, &svc_expkey_cache);
 
         if (IS_ERR(exp))
-                return ERR_PTR(PTR_ERR(exp));
+                return ERR_CAST(exp);
         return exp;
 }
 
@@ -1359,7 +1353,7 @@ exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp)
         exp = rqst_exp_find(rqstp, FSID_NUM, fsidv);
         if (IS_ERR(exp))
                 return nfserrno(PTR_ERR(exp));
-        rv = fh_compose(fhp, exp, exp->ex_dentry, NULL);
+        rv = fh_compose(fhp, exp, exp->ex_path.dentry, NULL);
         if (rv)
                 goto out;
         rv = check_nfsd_access(exp, rqstp);
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index eac82830bfd7..c721a1e6e9dd 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -67,7 +67,7 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
         if (nfserr)
                 RETURN_STATUS(nfserr);
 
-        err = vfs_getattr(resp->fh.fh_export->ex_mnt,
+        err = vfs_getattr(resp->fh.fh_export->ex_path.mnt,
                           resp->fh.fh_dentry, &resp->stat);
         nfserr = nfserrno(err);
 
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index d7647f70e02b..17d0dd997204 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -218,7 +218,7 @@ encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
                 int err;
                 struct kstat stat;
 
-                err = vfs_getattr(fhp->fh_export->ex_mnt, dentry, &stat);
+                err = vfs_getattr(fhp->fh_export->ex_path.mnt, dentry, &stat);
                 if (!err) {
                         *p++ = xdr_one;         /* attributes follow */
                         lease_get_mtime(dentry->d_inode, &stat.mtime);
@@ -270,7 +270,7 @@ void fill_post_wcc(struct svc_fh *fhp)
         if (fhp->fh_post_saved)
                 printk("nfsd: inode locked twice during operation.\n");
 
-        err = vfs_getattr(fhp->fh_export->ex_mnt, fhp->fh_dentry,
+        err = vfs_getattr(fhp->fh_export->ex_path.mnt, fhp->fh_dentry,
                         &fhp->fh_post_attr);
         if (err)
                 fhp->fh_post_saved = 0;
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 1602cd00dd45..1ff90625860f 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -120,9 +120,9 @@ out_no_tfm:
 static void
 nfsd4_sync_rec_dir(void)
 {
-        mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
-        nfsd_sync_dir(rec_dir.dentry);
-        mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
+        mutex_lock(&rec_dir.path.dentry->d_inode->i_mutex);
+        nfsd_sync_dir(rec_dir.path.dentry);
+        mutex_unlock(&rec_dir.path.dentry->d_inode->i_mutex);
 }
 
 int
@@ -142,9 +142,9 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
         nfs4_save_user(&uid, &gid);
 
         /* lock the parent */
-        mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
+        mutex_lock(&rec_dir.path.dentry->d_inode->i_mutex);
 
-        dentry = lookup_one_len(dname, rec_dir.dentry, HEXDIR_LEN-1);
+        dentry = lookup_one_len(dname, rec_dir.path.dentry, HEXDIR_LEN-1);
         if (IS_ERR(dentry)) {
                 status = PTR_ERR(dentry);
                 goto out_unlock;
@@ -154,11 +154,11 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
                 dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n");
                 goto out_put;
         }
-        status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU);
+        status = vfs_mkdir(rec_dir.path.dentry->d_inode, dentry, S_IRWXU);
 out_put:
         dput(dentry);
 out_unlock:
-        mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
+        mutex_unlock(&rec_dir.path.dentry->d_inode->i_mutex);
         if (status == 0) {
                 clp->cl_firststate = 1;
                 nfsd4_sync_rec_dir();
@@ -221,7 +221,7 @@ nfsd4_list_rec_dir(struct dentry *dir, recdir_func *f)
 
         nfs4_save_user(&uid, &gid);
 
-        filp = dentry_open(dget(dir), mntget(rec_dir.mnt), O_RDONLY);
+        filp = dentry_open(dget(dir), mntget(rec_dir.path.mnt), O_RDONLY);
         status = PTR_ERR(filp);
         if (IS_ERR(filp))
                 goto out;
@@ -286,9 +286,9 @@ nfsd4_unlink_clid_dir(char *name, int namlen)
 
         dprintk("NFSD: nfsd4_unlink_clid_dir. name %.*s\n", namlen, name);
 
-        mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
-        dentry = lookup_one_len(name, rec_dir.dentry, namlen);
-        mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
+        mutex_lock(&rec_dir.path.dentry->d_inode->i_mutex);
+        dentry = lookup_one_len(name, rec_dir.path.dentry, namlen);
+        mutex_unlock(&rec_dir.path.dentry->d_inode->i_mutex);
         if (IS_ERR(dentry)) {
                 status = PTR_ERR(dentry);
                 return status;
@@ -297,7 +297,7 @@ nfsd4_unlink_clid_dir(char *name, int namlen)
         if (!dentry->d_inode)
                 goto out;
 
-        status = nfsd4_clear_clid_dir(rec_dir.dentry, dentry);
+        status = nfsd4_clear_clid_dir(rec_dir.path.dentry, dentry);
 out:
         dput(dentry);
         return status;
@@ -347,12 +347,12 @@ nfsd4_recdir_purge_old(void) {
 
         if (!rec_dir_init)
                 return;
-        status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old);
+        status = nfsd4_list_rec_dir(rec_dir.path.dentry, purge_old);
         if (status == 0)
                 nfsd4_sync_rec_dir();
         if (status)
                 printk("nfsd4: failed to purge old clients from recovery"
-                        " directory %s\n", rec_dir.dentry->d_name.name);
+                        " directory %s\n", rec_dir.path.dentry->d_name.name);
         return;
 }
 
@@ -373,10 +373,10 @@ int
 nfsd4_recdir_load(void) {
         int status;
 
-        status = nfsd4_list_rec_dir(rec_dir.dentry, load_recdir);
+        status = nfsd4_list_rec_dir(rec_dir.path.dentry, load_recdir);
         if (status)
                 printk("nfsd4: failed loading clients from recovery"
-                        " directory %s\n", rec_dir.dentry->d_name.name);
+                        " directory %s\n", rec_dir.path.dentry->d_name.name);
         return status;
 }
 
@@ -415,5 +415,5 @@ nfsd4_shutdown_recdir(void)
         if (!rec_dir_init)
                 return;
         rec_dir_init = 0;
-        path_release(&rec_dir);
+        path_put(&rec_dir.path);
 }
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f6744bc03dae..bcb97d8e8b8b 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3261,11 +3261,11 @@ nfs4_reset_recoverydir(char *recdir)
         if (status)
                 return status;
         status = -ENOTDIR;
-        if (S_ISDIR(nd.dentry->d_inode->i_mode)) {
+        if (S_ISDIR(nd.path.dentry->d_inode->i_mode)) {
                 nfs4_set_recdir(recdir);
                 status = 0;
         }
-        path_release(&nd);
+        path_put(&nd.path);
         return status;
 }
 
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index b0592e7c378d..0e6a179eccaf 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1330,9 +1330,9 @@ static char *nfsd4_path(struct svc_rqst *rqstp, struct svc_export *exp, __be32 *
         *stat = exp_pseudoroot(rqstp, &tmp_fh);
         if (*stat)
                 return NULL;
-        rootpath = tmp_fh.fh_export->ex_path;
+        rootpath = tmp_fh.fh_export->ex_pathname;
 
-        path = exp->ex_path;
+        path = exp->ex_pathname;
 
         if (strncmp(path, rootpath, strlen(rootpath))) {
                 dprintk("nfsd: fs_locations failed;"
@@ -1481,7 +1481,7 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
                         goto out;
         }
 
-        err = vfs_getattr(exp->ex_mnt, dentry, &stat);
+        err = vfs_getattr(exp->ex_path.mnt, dentry, &stat);
         if (err)
                 goto out_nfserr;
         if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |
@@ -1838,9 +1838,9 @@ out_acl:
                  * and this is the root of a cross-mounted filesystem.
                  */
                 if (ignore_crossmnt == 0 &&
-                    exp->ex_mnt->mnt_root->d_inode == dentry->d_inode) {
-                        err = vfs_getattr(exp->ex_mnt->mnt_parent,
-                                exp->ex_mnt->mnt_mountpoint, &stat);
+                    exp->ex_path.mnt->mnt_root->d_inode == dentry->d_inode) {
+                        err = vfs_getattr(exp->ex_path.mnt->mnt_parent,
+                                exp->ex_path.mnt->mnt_mountpoint, &stat);
                         if (err)
                                 goto out_nfserr;
                 }
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 8fbd2dc08a92..0130b345234d 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -47,7 +47,7 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
                 return 1;
 
         tdentry = dget(dentry);
-        while (tdentry != exp->ex_dentry && ! IS_ROOT(tdentry)) {
+        while (tdentry != exp->ex_path.dentry && !IS_ROOT(tdentry)) {
                 /* make sure parents give x permission to user */
                 int err;
                 parent = dget_parent(tdentry);
@@ -59,9 +59,9 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
                 dput(tdentry);
                 tdentry = parent;
         }
-        if (tdentry != exp->ex_dentry)
+        if (tdentry != exp->ex_path.dentry)
                 dprintk("nfsd_acceptable failed at %p %s\n", tdentry, tdentry->d_name.name);
-        rv = (tdentry == exp->ex_dentry);
+        rv = (tdentry == exp->ex_path.dentry);
         dput(tdentry);
         return rv;
 }
@@ -209,9 +209,9 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
                         fileid_type = fh->fh_fileid_type;
 
                 if (fileid_type == FILEID_ROOT)
-                        dentry = dget(exp->ex_dentry);
+                        dentry = dget(exp->ex_path.dentry);
                 else {
-                        dentry = exportfs_decode_fh(exp->ex_mnt, fid,
+                        dentry = exportfs_decode_fh(exp->ex_path.mnt, fid,
                                         data_left, fileid_type,
                                         nfsd_acceptable, exp);
                 }
@@ -299,7 +299,7 @@ out:
 static void _fh_update(struct svc_fh *fhp, struct svc_export *exp,
                 struct dentry *dentry)
 {
-        if (dentry != exp->ex_dentry) {
+        if (dentry != exp->ex_path.dentry) {
                 struct fid *fid = (struct fid *)
                         (fhp->fh_handle.fh_auth + fhp->fh_handle.fh_size/4 - 1);
                 int maxsize = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;
@@ -344,12 +344,12 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
         struct inode * inode = dentry->d_inode;
         struct dentry *parent = dentry->d_parent;
         __u32 *datap;
-        dev_t ex_dev = exp->ex_dentry->d_inode->i_sb->s_dev;
-        int root_export = (exp->ex_dentry == exp->ex_dentry->d_sb->s_root);
+        dev_t ex_dev = exp->ex_path.dentry->d_inode->i_sb->s_dev;
+        int root_export = (exp->ex_path.dentry == exp->ex_path.dentry->d_sb->s_root);
 
         dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %s/%s, ino=%ld)\n",
                 MAJOR(ex_dev), MINOR(ex_dev),
-                (long) exp->ex_dentry->d_inode->i_ino,
+                (long) exp->ex_path.dentry->d_inode->i_ino,
                 parent->d_name.name, dentry->d_name.name,
                 (inode ? inode->i_ino : 0));
 
@@ -391,7 +391,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
                         /* FALL THROUGH */
                 case FSID_MAJOR_MINOR:
                 case FSID_ENCODE_DEV:
-                        if (!(exp->ex_dentry->d_inode->i_sb->s_type->fs_flags
+                        if (!(exp->ex_path.dentry->d_inode->i_sb->s_type->fs_flags
                               & FS_REQUIRES_DEV))
                                 goto retry;
                         break;
@@ -454,7 +454,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
                 fhp->fh_handle.ofh_dev =  old_encode_dev(ex_dev);
                 fhp->fh_handle.ofh_xdev = fhp->fh_handle.ofh_dev;
                 fhp->fh_handle.ofh_xino =
-                        ino_t_to_u32(exp->ex_dentry->d_inode->i_ino);
+                        ino_t_to_u32(exp->ex_path.dentry->d_inode->i_ino);
                 fhp->fh_handle.ofh_dirino = ino_t_to_u32(parent_ino(dentry));
                 if (inode)
                         _fh_update_old(dentry, exp, &fhp->fh_handle);
@@ -465,7 +465,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
                 datap = fhp->fh_handle.fh_auth+0;
                 fhp->fh_handle.fh_fsid_type = fsid_type;
                 mk_fsid(fsid_type, datap, ex_dev,
-                        exp->ex_dentry->d_inode->i_ino,
+                        exp->ex_path.dentry->d_inode->i_ino,
                         exp->ex_fsid, exp->ex_uuid);
 
                 len = key_len(fsid_type);
@@ -571,7 +571,7 @@ enum fsid_source fsid_source(struct svc_fh *fhp)
         case FSID_DEV:
         case FSID_ENCODE_DEV:
         case FSID_MAJOR_MINOR:
-                if (fhp->fh_export->ex_dentry->d_inode->i_sb->s_type->fs_flags
+                if (fhp->fh_export->ex_path.dentry->d_inode->i_sb->s_type->fs_flags
                     & FS_REQUIRES_DEV)
                         return FSIDSOURCE_DEV;
                 break;
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 977a71f64e19..6cfc96a12483 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -41,7 +41,7 @@ static __be32
 nfsd_return_attrs(__be32 err, struct nfsd_attrstat *resp)
 {
         if (err) return err;
-        return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+        return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
                                     resp->fh.fh_dentry,
                                     &resp->stat));
 }
@@ -49,7 +49,7 @@ static __be32
 nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp)
 {
         if (err) return err;
-        return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+        return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
                                     resp->fh.fh_dentry,
                                     &resp->stat));
 }
@@ -164,7 +164,7 @@ nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
                                   &resp->count);
 
         if (nfserr) return nfserr;
-        return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+        return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
                                     resp->fh.fh_dentry,
                                     &resp->stat));
 }
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 61ad61743d94..afd08e2c90a5 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -207,7 +207,7 @@ encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
 __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
 {
         struct kstat stat;
-        vfs_getattr(fhp->fh_export->ex_mnt, fhp->fh_dentry, &stat);
+        vfs_getattr(fhp->fh_export->ex_path.mnt, fhp->fh_dentry, &stat);
         return encode_fattr(rqstp, p, fhp, &stat);
 }
 
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index cc75e4fcd02b..46f59d5365a0 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -101,7 +101,7 @@ nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
 {
         struct svc_export *exp = *expp, *exp2 = NULL;
         struct dentry *dentry = *dpp;
-        struct vfsmount *mnt = mntget(exp->ex_mnt);
+        struct vfsmount *mnt = mntget(exp->ex_path.mnt);
         struct dentry *mounts = dget(dentry);
         int err = 0;
 
@@ -156,15 +156,15 @@ nfsd_lookup_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp,
         if (isdotent(name, len)) {
                 if (len==1)
                         dentry = dget(dparent);
-                else if (dparent != exp->ex_dentry) {
+                else if (dparent != exp->ex_path.dentry)
                         dentry = dget_parent(dparent);
-                } else  if (!EX_NOHIDE(exp))
+                else if (!EX_NOHIDE(exp))
                         dentry = dget(dparent); /* .. == . just like at / */
                 else {
                         /* checking mountpoint crossing is very different when stepping up */
                         struct svc_export *exp2 = NULL;
                         struct dentry *dp;
-                        struct vfsmount *mnt = mntget(exp->ex_mnt);
+                        struct vfsmount *mnt = mntget(exp->ex_path.mnt);
                         dentry = dget(dparent);
                         while(dentry == mnt->mnt_root && follow_up(&mnt, &dentry))
                                 ;
@@ -721,7 +721,8 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
 
                 DQUOT_INIT(inode);
         }
-        *filp = dentry_open(dget(dentry), mntget(fhp->fh_export->ex_mnt), flags);
+        *filp = dentry_open(dget(dentry), mntget(fhp->fh_export->ex_path.mnt),
+                                flags);
         if (IS_ERR(*filp))
                 host_err = PTR_ERR(*filp);
 out_nfserr:
@@ -1462,7 +1463,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
         if (!inode->i_op || !inode->i_op->readlink)
                 goto out;
 
-        touch_atime(fhp->fh_export->ex_mnt, dentry);
+        touch_atime(fhp->fh_export->ex_path.mnt, dentry);
         /* N.B. Why does this call need a get_fs()??
          * Remove the set_fs and watch the fireworks:-) --okir
          */
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index ad87cb01299b..00e9ccde8e42 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -87,13 +87,17 @@ static void ntfs_end_buffer_async_read(struct buffer_head *bh, int uptodate)
                 /* Check for the current buffer head overflowing. */
                 if (unlikely(file_ofs + bh->b_size > init_size)) {
                         int ofs;
+                        void *kaddr;
 
                         ofs = 0;
                         if (file_ofs < init_size)
                                 ofs = init_size - file_ofs;
                         local_irq_save(flags);
-                        zero_user_page(page, bh_offset(bh) + ofs,
-                                         bh->b_size - ofs, KM_BIO_SRC_IRQ);
+                        kaddr = kmap_atomic(page, KM_BIO_SRC_IRQ);
+                        memset(kaddr + bh_offset(bh) + ofs, 0,
+                                        bh->b_size - ofs);
+                        flush_dcache_page(page);
+                        kunmap_atomic(kaddr, KM_BIO_SRC_IRQ);
                         local_irq_restore(flags);
                 }
         } else {
@@ -334,7 +338,7 @@ handle_hole:
                 bh->b_blocknr = -1UL;
                 clear_buffer_mapped(bh);
 handle_zblock:
-                zero_user_page(page, i * blocksize, blocksize, KM_USER0);
+                zero_user(page, i * blocksize, blocksize);
                 if (likely(!err))
                         set_buffer_uptodate(bh);
         } while (i++, iblock++, (bh = bh->b_this_page) != head);
@@ -410,7 +414,7 @@ retry_readpage:
         /* Is the page fully outside i_size? (truncate in progress) */
         if (unlikely(page->index >= (i_size + PAGE_CACHE_SIZE - 1) >>
                         PAGE_CACHE_SHIFT)) {
-                zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
+                zero_user(page, 0, PAGE_CACHE_SIZE);
                 ntfs_debug("Read outside i_size - truncated?");
                 goto done;
         }
@@ -459,7 +463,7 @@ retry_readpage:
          * ok to ignore the compressed flag here.
          */
         if (unlikely(page->index > 0)) {
-                zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
+                zero_user(page, 0, PAGE_CACHE_SIZE);
                 goto done;
         }
         if (!NInoAttr(ni))
@@ -788,8 +792,7 @@ lock_retry_remap:
                 if (err == -ENOENT || lcn == LCN_ENOENT) {
                         bh->b_blocknr = -1;
                         clear_buffer_dirty(bh);
-                        zero_user_page(page, bh_offset(bh), blocksize,
-                                        KM_USER0);
+                        zero_user(page, bh_offset(bh), blocksize);
                         set_buffer_uptodate(bh);
                         err = 0;
                         continue;
@@ -1414,8 +1417,7 @@ retry_writepage:
                 if (page->index >= (i_size >> PAGE_CACHE_SHIFT)) {
                         /* The page straddles i_size. */
                         unsigned int ofs = i_size & ~PAGE_CACHE_MASK;
-                        zero_user_page(page, ofs, PAGE_CACHE_SIZE - ofs,
-                                        KM_USER0);
+                        zero_user_segment(page, ofs, PAGE_CACHE_SIZE);
                 }
                 /* Handle mst protected attributes. */
                 if (NInoMstProtected(ni))
diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index d1619d05eb23..33ff314cc507 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -565,7 +565,7 @@ int ntfs_read_compressed_block(struct page *page)
         if (xpage >= max_page) {
                 kfree(bhs);
                 kfree(pages);
-                zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
+                zero_user(page, 0, PAGE_CACHE_SIZE);
                 ntfs_debug("Compressed read outside i_size - truncated?");
                 SetPageUptodate(page);
                 unlock_page(page);
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 6cd08dfdc2ed..3c5550cd11d6 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -607,8 +607,8 @@ do_next_page:
                                         ntfs_submit_bh_for_read(bh);
                                         *wait_bh++ = bh;
                                 } else {
-                                        zero_user_page(page, bh_offset(bh),
-                                                        blocksize, KM_USER0);
+                                        zero_user(page, bh_offset(bh),
+                                                        blocksize);
                                         set_buffer_uptodate(bh);
                                 }
                         }
@@ -683,9 +683,8 @@ map_buffer_cached:
                                                 ntfs_submit_bh_for_read(bh);
                                                 *wait_bh++ = bh;
                                         } else {
-                                                zero_user_page(page,
-                                                        bh_offset(bh),
-                                                        blocksize, KM_USER0);
+                                                zero_user(page, bh_offset(bh),
+                                                                blocksize);
                                                 set_buffer_uptodate(bh);
                                         }
                                 }
@@ -703,8 +702,8 @@ map_buffer_cached:
                          */
                         if (bh_end <= pos || bh_pos >= end) {
                                 if (!buffer_uptodate(bh)) {
-                                        zero_user_page(page, bh_offset(bh),
-                                                        blocksize, KM_USER0);
+                                        zero_user(page, bh_offset(bh),
+                                                        blocksize);
                                         set_buffer_uptodate(bh);
                                 }
                                 mark_buffer_dirty(bh);
@@ -743,8 +742,7 @@ map_buffer_cached:
                                 if (!buffer_uptodate(bh))
                                         set_buffer_uptodate(bh);
                         } else if (!buffer_uptodate(bh)) {
-                                zero_user_page(page, bh_offset(bh), blocksize,
-                                                KM_USER0);
+                                zero_user(page, bh_offset(bh), blocksize);
                                 set_buffer_uptodate(bh);
                         }
                         continue;
@@ -868,8 +866,8 @@ rl_not_mapped_enoent:
                                         if (!buffer_uptodate(bh))
                                                 set_buffer_uptodate(bh);
                                 } else if (!buffer_uptodate(bh)) {
-                                        zero_user_page(page, bh_offset(bh),
-                                                        blocksize, KM_USER0);
+                                        zero_user(page, bh_offset(bh),
+                                                blocksize);
                                         set_buffer_uptodate(bh);
                                 }
                                 continue;
@@ -1128,8 +1126,8 @@ rl_not_mapped_enoent:
 
                                 if (likely(bh_pos < initialized_size))
                                         ofs = initialized_size - bh_pos;
-                                zero_user_page(page, bh_offset(bh) + ofs,
-                                                blocksize - ofs, KM_USER0);
+                                zero_user_segment(page, bh_offset(bh) + ofs,
+                                                blocksize);
                         }
                 } else /* if (unlikely(!buffer_uptodate(bh))) */
                         err = -EIO;
@@ -1269,8 +1267,8 @@ rl_not_mapped_enoent:
                                 if (PageUptodate(page))
                                         set_buffer_uptodate(bh);
                                 else {
-                                        zero_user_page(page, bh_offset(bh),
-                                                        blocksize, KM_USER0);
+                                        zero_user(page, bh_offset(bh),
+                                                        blocksize);
                                         set_buffer_uptodate(bh);
                                 }
                         }
@@ -1330,7 +1328,7 @@ err_out:
                 len = PAGE_CACHE_SIZE;
                 if (len > bytes)
                         len = bytes;
-                zero_user_page(*pages, 0, len, KM_USER0);
+                zero_user(*pages, 0, len);
         }
         goto out;
 }
@@ -1451,7 +1449,7 @@ err_out:
                 len = PAGE_CACHE_SIZE;
                 if (len > bytes)
                         len = bytes;
-                zero_user_page(*pages, 0, len, KM_USER0);
+                zero_user(*pages, 0, len);
         }
         goto out;
 }
diff --git a/fs/ntfs/malloc.h b/fs/ntfs/malloc.h
index e38e402e4103..cd0be3f5c3cd 100644
--- a/fs/ntfs/malloc.h
+++ b/fs/ntfs/malloc.h
@@ -85,8 +85,7 @@ static inline void *ntfs_malloc_nofs_nofail(unsigned long size)
 
 static inline void ntfs_free(void *addr)
 {
-        if (likely(((unsigned long)addr < VMALLOC_START) ||
-                        ((unsigned long)addr >= VMALLOC_END ))) {
+        if (!is_vmalloc_addr(addr)) {
                 kfree(addr);
                 /* free_page((unsigned long)addr); */
                 return;
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 64713e149e46..447206eb5c2e 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -5670,7 +5670,7 @@ static void ocfs2_map_and_dirty_page(struct inode *inode, handle_t *handle,
                 mlog_errno(ret);
 
         if (zero)
-                zero_user_page(page, from, to - from, KM_USER0);
+                zero_user_segment(page, from, to);
 
         /*
          * Need to set the buffers we zero'd into uptodate
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index bc7b4cbbe8ec..82243127eebf 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -307,7 +307,7 @@ static int ocfs2_readpage(struct file *file, struct page *page)
          * XXX sys_readahead() seems to get that wrong?
          */
         if (start >= i_size_read(inode)) {
-                zero_user_page(page, 0, PAGE_SIZE, KM_USER0);
+                zero_user(page, 0, PAGE_SIZE);
                 SetPageUptodate(page);
                 ret = 0;
                 goto out_alloc;
@@ -869,7 +869,7 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
                 if (block_start >= to)
                         break;
 
-                zero_user_page(page, block_start, bh->b_size, KM_USER0);
+                zero_user(page, block_start, bh->b_size);
                 set_buffer_uptodate(bh);
                 mark_buffer_dirty(bh);
 
@@ -1034,7 +1034,7 @@ static void ocfs2_zero_new_buffers(struct page *page, unsigned from, unsigned to
                                         start = max(from, block_start);
                                         end = min(to, block_end);
 
-                                        zero_user_page(page, start, end - start, KM_USER0);
+                                        zero_user_segment(page, start, end);
                                         set_buffer_uptodate(bh);
                                 }
 
diff --git a/fs/ocfs2/cluster/endian.h b/fs/ocfs2/cluster/endian.h
deleted file mode 100644
index 2df9082f4e35..000000000000
--- a/fs/ocfs2/cluster/endian.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * Copyright (C) 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#ifndef OCFS2_CLUSTER_ENDIAN_H
-#define OCFS2_CLUSTER_ENDIAN_H
-
-static inline void be32_add_cpu(__be32 *var, u32 val)
-{
-        *var = cpu_to_be32(be32_to_cpu(*var) + val);
-}
-
-#endif /* OCFS2_CLUSTER_ENDIAN_H */
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index af2070da308b..709fba25bf7e 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -24,7 +24,6 @@
 #include <linux/sysctl.h>
 #include <linux/configfs.h>
 
-#include "endian.h"
 #include "tcp.h"
 #include "nodemanager.h"
 #include "heartbeat.h"
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index b2e832aca567..d25b9af28500 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -38,6 +38,15 @@
  * locking semantics of the file system using the protocol.  It should 
  * be somewhere else, I'm sure, but right now it isn't.
  *
+ * With version 11, we separate out the filesystem locking portion.  The
+ * filesystem now has a major.minor version it negotiates.  Version 11
+ * introduces this negotiation to the o2dlm protocol, and as such the
+ * version here in tcp_internal.h should not need to be bumped for
+ * filesystem locking changes.
+ *
+ * New in version 11
+ *      - Negotiation of filesystem locking in the dlm join.
+ *
  * New in version 10:
  *      - Meta/data locks combined
  *
@@ -66,7 +75,7 @@
  *      - full 64 bit i_size in the metadata lock lvbs
  *      - introduction of "rw" lock and pushing meta/data locking down
  */
-#define O2NET_PROTOCOL_VERSION 10ULL
+#define O2NET_PROTOCOL_VERSION 11ULL
 struct o2net_handshake {
         __be64  protocol_version;
         __be64  connector_id;
diff --git a/fs/ocfs2/dlm/dlmapi.h b/fs/ocfs2/dlm/dlmapi.h
index cfd5cb65cab0..b5786a787fab 100644
--- a/fs/ocfs2/dlm/dlmapi.h
+++ b/fs/ocfs2/dlm/dlmapi.h
@@ -193,7 +193,12 @@ enum dlm_status dlmunlock(struct dlm_ctxt *dlm,
                           dlm_astunlockfunc_t *unlockast,
                           void *data);
 
-struct dlm_ctxt * dlm_register_domain(const char *domain, u32 key);
+struct dlm_protocol_version {
+        u8 pv_major;
+        u8 pv_minor;
+};
+struct dlm_ctxt * dlm_register_domain(const char *domain, u32 key,
+                                      struct dlm_protocol_version *fs_proto);
 
 void dlm_unregister_domain(struct dlm_ctxt *dlm);
 
diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c
index 2fd8bded38f3..644bee55d8ba 100644
--- a/fs/ocfs2/dlm/dlmast.c
+++ b/fs/ocfs2/dlm/dlmast.c
@@ -43,7 +43,6 @@
 #include "cluster/heartbeat.h"
 #include "cluster/nodemanager.h"
 #include "cluster/tcp.h"
-#include "cluster/endian.h"
 
 #include "dlmapi.h"
 #include "dlmcommon.h"
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index e90b92f9ece1..9843ee17ea27 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -142,6 +142,12 @@ struct dlm_ctxt
         spinlock_t work_lock;
         struct list_head dlm_domain_handlers;
         struct list_head        dlm_eviction_callbacks;
+
+        /* The filesystem specifies this at domain registration.  We
+         * cache it here to know what to tell other nodes. */
+        struct dlm_protocol_version fs_locking_proto;
+        /* This is the inter-dlm communication version */
+        struct dlm_protocol_version dlm_locking_proto;
 };
 
 static inline struct hlist_head *dlm_lockres_hash(struct dlm_ctxt *dlm, unsigned i)
@@ -589,10 +595,24 @@ struct dlm_proxy_ast
 #define DLM_PROXY_AST_MAX_LEN  (sizeof(struct dlm_proxy_ast)+DLM_LVB_LEN)
 
 #define DLM_MOD_KEY (0x666c6172)
-enum dlm_query_join_response {
+enum dlm_query_join_response_code {
         JOIN_DISALLOW = 0,
         JOIN_OK,
         JOIN_OK_NO_MAP,
+        JOIN_PROTOCOL_MISMATCH,
+};
+
+union dlm_query_join_response {
+        u32 intval;
+        struct {
+                u8 code;        /* Response code.  dlm_minor and fs_minor
+                                   are only valid if this is JOIN_OK */
+                u8 dlm_minor;   /* The minor version of the protocol the
+                                   dlm is speaking. */
+                u8 fs_minor;    /* The minor version of the protocol the
+                                   filesystem is speaking. */
+                u8 reserved;
+        } packet;
 };
 
 struct dlm_lock_request
@@ -633,6 +653,8 @@ struct dlm_query_join_request
         u8 node_idx;
         u8 pad1[2];
         u8 name_len;
+        struct dlm_protocol_version dlm_proto;
+        struct dlm_protocol_version fs_proto;
         u8 domain[O2NM_MAX_NAME_LEN];
         u8 node_map[BITS_TO_BYTES(O2NM_MAX_NODES)];
 };
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 6954565b8ccb..638d2ebb892b 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -123,6 +123,17 @@ DEFINE_SPINLOCK(dlm_domain_lock);
 LIST_HEAD(dlm_domains);
 static DECLARE_WAIT_QUEUE_HEAD(dlm_domain_events);
 
+/*
+ * The supported protocol version for DLM communication.  Running domains
+ * will have a negotiated version with the same major number and a minor
+ * number equal or smaller.  The dlm_ctxt->dlm_locking_proto field should
+ * be used to determine what a running domain is actually using.
+ */
+static const struct dlm_protocol_version dlm_protocol = {
+        .pv_major = 1,
+        .pv_minor = 0,
+};
+
 #define DLM_DOMAIN_BACKOFF_MS 200
 
 static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data,
@@ -133,6 +144,8 @@ static int dlm_cancel_join_handler(struct o2net_msg *msg, u32 len, void *data,
                                    void **ret_data);
 static int dlm_exit_domain_handler(struct o2net_msg *msg, u32 len, void *data,
                                    void **ret_data);
+static int dlm_protocol_compare(struct dlm_protocol_version *existing,
+                                struct dlm_protocol_version *request);
 
 static void dlm_unregister_domain_handlers(struct dlm_ctxt *dlm);
 
@@ -668,11 +681,45 @@ void dlm_unregister_domain(struct dlm_ctxt *dlm)
 }
 EXPORT_SYMBOL_GPL(dlm_unregister_domain);
 
+static int dlm_query_join_proto_check(char *proto_type, int node,
+                                      struct dlm_protocol_version *ours,
+                                      struct dlm_protocol_version *request)
+{
+        int rc;
+        struct dlm_protocol_version proto = *request;
+
+        if (!dlm_protocol_compare(ours, &proto)) {
+                mlog(0,
+                     "node %u wanted to join with %s locking protocol "
+                     "%u.%u, we respond with %u.%u\n",
+                     node, proto_type,
+                     request->pv_major,
+                     request->pv_minor,
+                     proto.pv_major, proto.pv_minor);
+                request->pv_minor = proto.pv_minor;
+                rc = 0;
+        } else {
+                mlog(ML_NOTICE,
+                     "Node %u wanted to join with %s locking "
+                     "protocol %u.%u, but we have %u.%u, disallowing\n",
+                     node, proto_type,
+                     request->pv_major,
+                     request->pv_minor,
+                     ours->pv_major,
+                     ours->pv_minor);
+                rc = 1;
+        }
+
+        return rc;
+}
+
 static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data,
                                   void **ret_data)
 {
         struct dlm_query_join_request *query;
-        enum dlm_query_join_response response;
+        union dlm_query_join_response response = {
+                .packet.code = JOIN_DISALLOW,
+        };
         struct dlm_ctxt *dlm = NULL;
         u8 nodenum;
 
@@ -690,11 +737,11 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data,
                 mlog(0, "node %u is not in our live map yet\n",
                      query->node_idx);
 
-                response = JOIN_DISALLOW;
+                response.packet.code = JOIN_DISALLOW;
                 goto respond;
         }
 
-        response = JOIN_OK_NO_MAP;
+        response.packet.code = JOIN_OK_NO_MAP;
 
         spin_lock(&dlm_domain_lock);
         dlm = __dlm_lookup_domain_full(query->domain, query->name_len);
@@ -713,7 +760,7 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data,
                                 mlog(0, "disallow join as node %u does not "
                                      "have node %u in its nodemap\n",
                                      query->node_idx, nodenum);
-                                response = JOIN_DISALLOW;
+                                response.packet.code = JOIN_DISALLOW;
                                 goto unlock_respond;
                         }
                 }
@@ -733,30 +780,48 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data,
                         /*If this is a brand new context and we
                          * haven't started our join process yet, then
                          * the other node won the race. */
-                        response = JOIN_OK_NO_MAP;
+                        response.packet.code = JOIN_OK_NO_MAP;
                 } else if (dlm->joining_node != DLM_LOCK_RES_OWNER_UNKNOWN) {
                         /* Disallow parallel joins. */
-                        response = JOIN_DISALLOW;
+                        response.packet.code = JOIN_DISALLOW;
                 } else if (dlm->reco.state & DLM_RECO_STATE_ACTIVE) {
                         mlog(0, "node %u trying to join, but recovery "
                              "is ongoing.\n", bit);
-                        response = JOIN_DISALLOW;
+                        response.packet.code = JOIN_DISALLOW;
                 } else if (test_bit(bit, dlm->recovery_map)) {
                         mlog(0, "node %u trying to join, but it "
                              "still needs recovery.\n", bit);
-                        response = JOIN_DISALLOW;
+                        response.packet.code = JOIN_DISALLOW;
                 } else if (test_bit(bit, dlm->domain_map)) {
                         mlog(0, "node %u trying to join, but it "
                              "is still in the domain! needs recovery?\n",
                              bit);
-                        response = JOIN_DISALLOW;
+                        response.packet.code = JOIN_DISALLOW;
                 } else {
                         /* Alright we're fully a part of this domain
                          * so we keep some state as to who's joining
                          * and indicate to him that needs to be fixed
                          * up. */
-                        response = JOIN_OK;
-                        __dlm_set_joining_node(dlm, query->node_idx);
+
+                        /* Make sure we speak compatible locking protocols.  */
+                        if (dlm_query_join_proto_check("DLM", bit,
+                                                       &dlm->dlm_locking_proto,
+                                                       &query->dlm_proto)) {
+                                response.packet.code =
+                                        JOIN_PROTOCOL_MISMATCH;
+                        } else if (dlm_query_join_proto_check("fs", bit,
+                                                              &dlm->fs_locking_proto,
+                                                              &query->fs_proto)) {
+                                response.packet.code =
+                                        JOIN_PROTOCOL_MISMATCH;
+                        } else {
+                                response.packet.dlm_minor =
+                                        query->dlm_proto.pv_minor;
+                                response.packet.fs_minor =
+                                        query->fs_proto.pv_minor;
+                                response.packet.code = JOIN_OK;
+                                __dlm_set_joining_node(dlm, query->node_idx);
+                        }
                 }
 
                 spin_unlock(&dlm->spinlock);
@@ -765,9 +830,9 @@ unlock_respond:
         spin_unlock(&dlm_domain_lock);
 
 respond:
-        mlog(0, "We respond with %u\n", response);
+        mlog(0, "We respond with %u\n", response.packet.code);
 
-        return response;
+        return response.intval;
 }
 
 static int dlm_assert_joined_handler(struct o2net_msg *msg, u32 len, void *data,
@@ -899,10 +964,11 @@ static int dlm_send_join_cancels(struct dlm_ctxt *dlm,
 
 static int dlm_request_join(struct dlm_ctxt *dlm,
                             int node,
-                            enum dlm_query_join_response *response)
+                            enum dlm_query_join_response_code *response)
 {
-        int status, retval;
+        int status;
         struct dlm_query_join_request join_msg;
+        union dlm_query_join_response join_resp;
 
         mlog(0, "querying node %d\n", node);
 
@@ -910,12 +976,15 @@ static int dlm_request_join(struct dlm_ctxt *dlm,
         join_msg.node_idx = dlm->node_num;
         join_msg.name_len = strlen(dlm->name);
         memcpy(join_msg.domain, dlm->name, join_msg.name_len);
+        join_msg.dlm_proto = dlm->dlm_locking_proto;
+        join_msg.fs_proto = dlm->fs_locking_proto;
 
         /* copy live node map to join message */
         byte_copymap(join_msg.node_map, dlm->live_nodes_map, O2NM_MAX_NODES);
 
         status = o2net_send_message(DLM_QUERY_JOIN_MSG, DLM_MOD_KEY, &join_msg,
-                                    sizeof(join_msg), node, &retval);
+                                    sizeof(join_msg), node,
+                                    &join_resp.intval);
         if (status < 0 && status != -ENOPROTOOPT) {
                 mlog_errno(status);
                 goto bail;
@@ -928,14 +997,41 @@ static int dlm_request_join(struct dlm_ctxt *dlm,
         if (status == -ENOPROTOOPT) {
                 status = 0;
                 *response = JOIN_OK_NO_MAP;
-        } else if (retval == JOIN_DISALLOW ||
-                   retval == JOIN_OK ||
-                   retval == JOIN_OK_NO_MAP) {
-                *response = retval;
+        } else if (join_resp.packet.code == JOIN_DISALLOW ||
+                   join_resp.packet.code == JOIN_OK_NO_MAP) {
+                *response = join_resp.packet.code;
+        } else if (join_resp.packet.code == JOIN_PROTOCOL_MISMATCH) {
+                mlog(ML_NOTICE,
+                     "This node requested DLM locking protocol %u.%u and "
+                     "filesystem locking protocol %u.%u.  At least one of "
+                     "the protocol versions on node %d is not compatible, "
+                     "disconnecting\n",
+                     dlm->dlm_locking_proto.pv_major,
+                     dlm->dlm_locking_proto.pv_minor,
+                     dlm->fs_locking_proto.pv_major,
+                     dlm->fs_locking_proto.pv_minor,
+                     node);
+                status = -EPROTO;
+                *response = join_resp.packet.code;
+        } else if (join_resp.packet.code == JOIN_OK) {
+                *response = join_resp.packet.code;
+                /* Use the same locking protocol as the remote node */
+                dlm->dlm_locking_proto.pv_minor =
+                        join_resp.packet.dlm_minor;
+                dlm->fs_locking_proto.pv_minor =
+                        join_resp.packet.fs_minor;
+                mlog(0,
+                     "Node %d responds JOIN_OK with DLM locking protocol "
+                     "%u.%u and fs locking protocol %u.%u\n",
+                     node,
+                     dlm->dlm_locking_proto.pv_major,
+                     dlm->dlm_locking_proto.pv_minor,
+                     dlm->fs_locking_proto.pv_major,
+                     dlm->fs_locking_proto.pv_minor);
         } else {
                 status = -EINVAL;
-                mlog(ML_ERROR, "invalid response %d from node %u\n", retval,
-                     node);
+                mlog(ML_ERROR, "invalid response %d from node %u\n",
+                     join_resp.packet.code, node);
         }
 
         mlog(0, "status %d, node %d response is %d\n", status, node,
@@ -1008,7 +1104,7 @@ struct domain_join_ctxt {
 
 static int dlm_should_restart_join(struct dlm_ctxt *dlm,
                                    struct domain_join_ctxt *ctxt,
-                                   enum dlm_query_join_response response)
+                                   enum dlm_query_join_response_code response)
 {
         int ret;
 
@@ -1034,7 +1130,7 @@ static int dlm_try_to_join_domain(struct dlm_ctxt *dlm)
 {
         int status = 0, tmpstat, node;
         struct domain_join_ctxt *ctxt;
-        enum dlm_query_join_response response = JOIN_DISALLOW;
+        enum dlm_query_join_response_code response = JOIN_DISALLOW;
 
         mlog_entry("%p", dlm);
 
@@ -1450,10 +1546,38 @@ leave:
 }
 
 /*
- * dlm_register_domain: one-time setup per "domain"
+ * Compare a requested locking protocol version against the current one.
+ *
+ * If the major numbers are different, they are incompatible.
+ * If the current minor is greater than the request, they are incompatible.
+ * If the current minor is less than or equal to the request, they are
+ * compatible, and the requester should run at the current minor version.
+ */
+static int dlm_protocol_compare(struct dlm_protocol_version *existing,
+                                struct dlm_protocol_version *request)
+{
+        if (existing->pv_major != request->pv_major)
+                return 1;
+
+        if (existing->pv_minor > request->pv_minor)
+                return 1;
+
+        if (existing->pv_minor < request->pv_minor)
+                request->pv_minor = existing->pv_minor;
+
+        return 0;
+}
+
+/*
+ * dlm_register_domain: one-time setup per "domain".
+ *
+ * The filesystem passes in the requested locking version via proto.
+ * If registration was successful, proto will contain the negotiated
+ * locking protocol.
  */
 struct dlm_ctxt * dlm_register_domain(const char *domain,
-                               u32 key)
+                               u32 key,
+                               struct dlm_protocol_version *fs_proto)
 {
         int ret;
         struct dlm_ctxt *dlm = NULL;
@@ -1496,6 +1620,15 @@ retry:
                         goto retry;
                 }
 
+                if (dlm_protocol_compare(&dlm->fs_locking_proto, fs_proto)) {
+                        mlog(ML_ERROR,
+                             "Requested locking protocol version is not "
+                             "compatible with already registered domain "
+                             "\"%s\"\n", domain);
+                        ret = -EPROTO;
+                        goto leave;
+                }
+
                 __dlm_get(dlm);
                 dlm->num_joins++;
 
@@ -1526,6 +1659,13 @@ retry:
         list_add_tail(&dlm->list, &dlm_domains);
         spin_unlock(&dlm_domain_lock);
 
+        /*
+         * Pass the locking protocol version into the join.  If the join
+         * succeeds, it will have the negotiated protocol set.
+         */
+        dlm->dlm_locking_proto = dlm_protocol;
+        dlm->fs_locking_proto = *fs_proto;
+
         ret = dlm_join_domain(dlm);
         if (ret) {
                 mlog_errno(ret);
@@ -1533,6 +1673,9 @@ retry:
                 goto leave;
         }
 
+        /* Tell the caller what locking protocol we negotiated */
+        *fs_proto = dlm->fs_locking_proto;
+
         ret = 0;
 leave:
         if (new_ctxt)
diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlm/dlmfs.c
index 6639baab0798..61a000f8524c 100644
--- a/fs/ocfs2/dlm/dlmfs.c
+++ b/fs/ocfs2/dlm/dlmfs.c
@@ -60,6 +60,8 @@
 #define MLOG_MASK_PREFIX ML_DLMFS
 #include "cluster/masklog.h"
 
+#include "ocfs2_lockingver.h"
+
 static const struct super_operations dlmfs_ops;
 static const struct file_operations dlmfs_file_operations;
 static const struct inode_operations dlmfs_dir_inode_operations;
@@ -70,6 +72,16 @@ static struct kmem_cache *dlmfs_inode_cache;
 struct workqueue_struct *user_dlm_worker;
 
 /*
+ * This is the userdlmfs locking protocol version.
+ *
+ * See fs/ocfs2/dlmglue.c for more details on locking versions.
+ */
+static const struct dlm_protocol_version user_locking_protocol = {
+        .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
+        .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
+};
+
+/*
  * decodes a set of open flags into a valid lock level and a set of flags.
  * returns < 0 if we have invalid flags
  * flags which mean something to us:
@@ -416,6 +428,7 @@ static int dlmfs_mkdir(struct inode * dir,
         struct qstr *domain = &dentry->d_name;
         struct dlmfs_inode_private *ip;
         struct dlm_ctxt *dlm;
+        struct dlm_protocol_version proto = user_locking_protocol;
 
         mlog(0, "mkdir %.*s\n", domain->len, domain->name);
 
@@ -435,7 +448,7 @@ static int dlmfs_mkdir(struct inode * dir,
 
         ip = DLMFS_I(inode);
 
-        dlm = user_dlm_register_context(domain);
+        dlm = user_dlm_register_context(domain, &proto);
         if (IS_ERR(dlm)) {
                 status = PTR_ERR(dlm);
                 mlog(ML_ERROR, "Error %d could not register domain \"%.*s\"\n",
diff --git a/fs/ocfs2/dlm/userdlm.c b/fs/ocfs2/dlm/userdlm.c
index 7d2f578b267d..4cb1d3dae250 100644
--- a/fs/ocfs2/dlm/userdlm.c
+++ b/fs/ocfs2/dlm/userdlm.c
@@ -645,7 +645,8 @@ bail:
         return status;
 }
 
-struct dlm_ctxt *user_dlm_register_context(struct qstr *name)
+struct dlm_ctxt *user_dlm_register_context(struct qstr *name,
+                                           struct dlm_protocol_version *proto)
 {
         struct dlm_ctxt *dlm;
         u32 dlm_key;
@@ -661,7 +662,7 @@ struct dlm_ctxt *user_dlm_register_context(struct qstr *name)
 
         snprintf(domain, name->len + 1, "%.*s", name->len, name->name);
 
-        dlm = dlm_register_domain(domain, dlm_key);
+        dlm = dlm_register_domain(domain, dlm_key, proto);
         if (IS_ERR(dlm))
                 mlog_errno(PTR_ERR(dlm));
 
diff --git a/fs/ocfs2/dlm/userdlm.h b/fs/ocfs2/dlm/userdlm.h
index c400e93bbf79..39ec27738499 100644
--- a/fs/ocfs2/dlm/userdlm.h
+++ b/fs/ocfs2/dlm/userdlm.h
@@ -83,7 +83,8 @@ void user_dlm_write_lvb(struct inode *inode,
 void user_dlm_read_lvb(struct inode *inode,
                        char *val,
                        unsigned int len);
-struct dlm_ctxt *user_dlm_register_context(struct qstr *name);
+struct dlm_ctxt *user_dlm_register_context(struct qstr *name,
+                                           struct dlm_protocol_version *proto);
 void user_dlm_unregister_context(struct dlm_ctxt *dlm);
 
 struct dlmfs_inode_private {
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 3867244fb144..351130c9b734 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -43,6 +43,7 @@
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
+#include "ocfs2_lockingver.h"
 
 #include "alloc.h"
 #include "dcache.h"
@@ -258,6 +259,31 @@ static struct ocfs2_lock_res_ops ocfs2_flock_lops = {
         .flags          = 0,
 };
 
+/*
+ * This is the filesystem locking protocol version.
+ *
+ * Whenever the filesystem does new things with locks (adds or removes a
+ * lock, orders them differently, does different things underneath a lock),
+ * the version must be changed.  The protocol is negotiated when joining
+ * the dlm domain.  A node may join the domain if its major version is
+ * identical to all other nodes and its minor version is greater than
+ * or equal to all other nodes.  When its minor version is greater than
+ * the other nodes, it will run at the minor version specified by the
+ * other nodes.
+ *
+ * If a locking change is made that will not be compatible with older
+ * versions, the major number must be increased and the minor version set
+ * to zero.  If a change merely adds a behavior that can be disabled when
+ * speaking to older versions, the minor version must be increased.  If a
+ * change adds a fully backwards compatible change (eg, LVB changes that
+ * are just ignored by older versions), the version does not need to be
+ * updated.
+ */
+const struct dlm_protocol_version ocfs2_locking_protocol = {
+        .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
+        .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
+};
+
 static inline int ocfs2_is_inode_lock(struct ocfs2_lock_res *lockres)
 {
         return lockres->l_type == OCFS2_LOCK_TYPE_META ||
@@ -2506,7 +2532,8 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
         dlm_key = crc32_le(0, osb->uuid_str, strlen(osb->uuid_str));
 
         /* for now, uuid == domain */
-        dlm = dlm_register_domain(osb->uuid_str, dlm_key);
+        dlm = dlm_register_domain(osb->uuid_str, dlm_key,
+                                  &osb->osb_locking_proto);
         if (IS_ERR(dlm)) {
                 status = PTR_ERR(dlm);
                 mlog_errno(status);
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 5f17243ba501..1d5b0699d0a9 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -116,4 +116,5 @@ void ocfs2_wake_downconvert_thread(struct ocfs2_super *osb);
 struct ocfs2_dlm_debug *ocfs2_new_dlm_debug(void);
 void ocfs2_put_dlm_debug(struct ocfs2_dlm_debug *dlm_debug);
 
+extern const struct dlm_protocol_version ocfs2_locking_protocol;
 #endif  /* DLMGLUE_H */
diff --git a/fs/ocfs2/endian.h b/fs/ocfs2/endian.h
deleted file mode 100644
index 1942e09f6ee5..000000000000
--- a/fs/ocfs2/endian.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * Copyright (C) 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#ifndef OCFS2_ENDIAN_H
-#define OCFS2_ENDIAN_H
-
-static inline void le16_add_cpu(__le16 *var, u16 val)
-{
-        *var = cpu_to_le16(le16_to_cpu(*var) + val);
-}
-
-static inline void le32_add_cpu(__le32 *var, u32 val)
-{
-        *var = cpu_to_le32(le32_to_cpu(*var) + val);
-}
-
-static inline void le64_add_cpu(__le64 *var, u64 val)
-{
-        *var = cpu_to_le64(le64_to_cpu(*var) + val);
-}
-
-static inline void be32_add_cpu(__be32 *var, u32 val)
-{
-        *var = cpu_to_be32(be32_to_cpu(*var) + val);
-}
-
-#endif /* OCFS2_ENDIAN_H */
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index d08480580470..6546cef212e3 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -43,7 +43,6 @@
 #include "dlm/dlmapi.h"
 
 #include "ocfs2_fs.h"
-#include "endian.h"
 #include "ocfs2_lockid.h"
 
 /* Most user visible OCFS2 inodes will have very few pieces of
@@ -251,6 +250,7 @@ struct ocfs2_super
         struct ocfs2_lock_res osb_rename_lockres;
         struct dlm_eviction_cb osb_eviction_cb;
         struct ocfs2_dlm_debug *osb_dlm_debug;
+        struct dlm_protocol_version osb_locking_proto;
 
         struct dentry *osb_debug_root;
 
diff --git a/fs/ocfs2/ocfs2_lockingver.h b/fs/ocfs2/ocfs2_lockingver.h
new file mode 100644
index 000000000000..82d5eeac0fff
--- /dev/null
+++ b/fs/ocfs2/ocfs2_lockingver.h
@@ -0,0 +1,30 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * ocfs2_lockingver.h
+ *
+ * Defines OCFS2 Locking version values.
+ *
+ * Copyright (C) 2008 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License, version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef OCFS2_LOCKINGVER_H
+#define OCFS2_LOCKINGVER_H
+
+/*
+ * The protocol version for ocfs2 cluster locking.  See dlmglue.c for
+ * more details.
+ */
+#define OCFS2_LOCKING_PROTOCOL_MAJOR 1
+#define OCFS2_LOCKING_PROTOCOL_MINOR 0
+
+#endif  /* OCFS2_LOCKINGVER_H */
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 01fe40ee5ea9..bec75aff3d9f 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1355,6 +1355,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
         sb->s_fs_info = osb;
         sb->s_op = &ocfs2_sops;
         sb->s_export_op = &ocfs2_export_ops;
+        osb->osb_locking_proto = ocfs2_locking_protocol;
         sb->s_time_gran = 1;
         sb->s_flags |= MS_NOATIME;
         /* this is needed to support O_LARGEFILE */
diff --git a/fs/open.c b/fs/open.c
index 4932b4d1da05..54198538b67e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -127,10 +127,10 @@ asmlinkage long sys_statfs(const char __user * path, struct statfs __user * buf)
         error = user_path_walk(path, &nd);
         if (!error) {
                 struct statfs tmp;
-                error = vfs_statfs_native(nd.dentry, &tmp);
+                error = vfs_statfs_native(nd.path.dentry, &tmp);
                 if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
                         error = -EFAULT;
-                path_release(&nd);
+                path_put(&nd.path);
         }
         return error;
 }
@@ -146,10 +146,10 @@ asmlinkage long sys_statfs64(const char __user *path, size_t sz, struct statfs64
         error = user_path_walk(path, &nd);
         if (!error) {
                 struct statfs64 tmp;
-                error = vfs_statfs64(nd.dentry, &tmp);
+                error = vfs_statfs64(nd.path.dentry, &tmp);
                 if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
                         error = -EFAULT;
-                path_release(&nd);
+                path_put(&nd.path);
         }
         return error;
 }
@@ -233,7 +233,7 @@ static long do_sys_truncate(const char __user * path, loff_t length)
         error = user_path_walk(path, &nd);
         if (error)
                 goto out;
-        inode = nd.dentry->d_inode;
+        inode = nd.path.dentry->d_inode;
 
         /* For directories it's -EISDIR, for other non-regulars - -EINVAL */
         error = -EISDIR;
@@ -271,13 +271,13 @@ static long do_sys_truncate(const char __user * path, loff_t length)
         error = locks_verify_truncate(inode, NULL, length);
         if (!error) {
                 DQUOT_INIT(inode);
-                error = do_truncate(nd.dentry, length, 0, NULL);
+                error = do_truncate(nd.path.dentry, length, 0, NULL);
         }
 
 put_write_and_out:
         put_write_access(inode);
 dput_and_out:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
         return error;
 }
@@ -455,14 +455,14 @@ asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode)
         res = vfs_permission(&nd, mode);
         /* SuS v2 requires we report a read only fs too */
         if(res || !(mode & S_IWOTH) ||
-           special_file(nd.dentry->d_inode->i_mode))
+           special_file(nd.path.dentry->d_inode->i_mode))
                 goto out_path_release;
 
-        if(IS_RDONLY(nd.dentry->d_inode))
+        if(IS_RDONLY(nd.path.dentry->d_inode))
                 res = -EROFS;
 
 out_path_release:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
         current->fsuid = old_fsuid;
         current->fsgid = old_fsgid;
@@ -490,10 +490,10 @@ asmlinkage long sys_chdir(const char __user * filename)
         if (error)
                 goto dput_and_out;
 
-        set_fs_pwd(current->fs, nd.mnt, nd.dentry);
+        set_fs_pwd(current->fs, &nd.path);
 
 dput_and_out:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
         return error;
 }
@@ -501,9 +501,7 @@ out:
 asmlinkage long sys_fchdir(unsigned int fd)
 {
         struct file *file;
-        struct dentry *dentry;
         struct inode *inode;
-        struct vfsmount *mnt;
         int error;
 
         error = -EBADF;
@@ -511,9 +509,7 @@ asmlinkage long sys_fchdir(unsigned int fd)
         if (!file)
                 goto out;
 
-        dentry = file->f_path.dentry;
-        mnt = file->f_path.mnt;
-        inode = dentry->d_inode;
+        inode = file->f_path.dentry->d_inode;
 
         error = -ENOTDIR;
         if (!S_ISDIR(inode->i_mode))
@@ -521,7 +517,7 @@ asmlinkage long sys_fchdir(unsigned int fd)
 
         error = file_permission(file, MAY_EXEC);
         if (!error)
-                set_fs_pwd(current->fs, mnt, dentry);
+                set_fs_pwd(current->fs, &file->f_path);
 out_putf:
         fput(file);
 out:
@@ -545,11 +541,11 @@ asmlinkage long sys_chroot(const char __user * filename)
         if (!capable(CAP_SYS_CHROOT))
                 goto dput_and_out;
 
-        set_fs_root(current->fs, nd.mnt, nd.dentry);
+        set_fs_root(current->fs, &nd.path);
         set_fs_altroot();
         error = 0;
 dput_and_out:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
         return error;
 }
@@ -602,7 +598,7 @@ asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
         error = __user_walk_fd(dfd, filename, LOOKUP_FOLLOW, &nd);
         if (error)
                 goto out;
-        inode = nd.dentry->d_inode;
+        inode = nd.path.dentry->d_inode;
 
         error = -EROFS;
         if (IS_RDONLY(inode))
@@ -617,11 +613,11 @@ asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
                 mode = inode->i_mode;
         newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
         newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
-        error = notify_change(nd.dentry, &newattrs);
+        error = notify_change(nd.path.dentry, &newattrs);
         mutex_unlock(&inode->i_mutex);
 
 dput_and_out:
-        path_release(&nd);
+        path_put(&nd.path);
 out:
         return error;
 }
@@ -675,8 +671,8 @@ asmlinkage long sys_chown(const char __user * filename, uid_t user, gid_t group)
         error = user_path_walk(filename, &nd);
         if (error)
                 goto out;
-        error = chown_common(nd.dentry, user, group);
-        path_release(&nd);
+        error = chown_common(nd.path.dentry, user, group);
+        path_put(&nd.path);
 out:
         return error;
 }
@@ -695,8 +691,8 @@ asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
         error = __user_walk_fd(dfd, filename, follow, &nd);
         if (error)
                 goto out;
-        error = chown_common(nd.dentry, user, group);
-        path_release(&nd);
+        error = chown_common(nd.path.dentry, user, group);
+        path_put(&nd.path);
 out:
         return error;
 }
@@ -709,8 +705,8 @@ asmlinkage long sys_lchown(const char __user * filename, uid_t user, gid_t group
         error = user_path_walk_link(filename, &nd);
         if (error)
                 goto out;
-        error = chown_common(nd.dentry, user, group);
-        path_release(&nd);
+        error = chown_common(nd.path.dentry, user, group);
+        path_put(&nd.path);
 out:
         return error;
 }
@@ -863,7 +859,7 @@ struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry
                 goto out;
         if (IS_ERR(dentry))
                 goto out_err;
-        nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->mnt),
+        nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->path.mnt),
                                              nd->intent.open.flags - 1,
                                              nd->intent.open.file,
                                              open);
@@ -891,9 +887,10 @@ struct file *nameidata_to_filp(struct nameidata *nd, int flags)
         filp = nd->intent.open.file;
         /* Has the filesystem initialised the file for us? */
         if (filp->f_path.dentry == NULL)
-                filp = __dentry_open(nd->dentry, nd->mnt, flags, filp, NULL);
+                filp = __dentry_open(nd->path.dentry, nd->path.mnt, flags, filp,
+                                     NULL);
         else
-                path_release(nd);
+                path_put(&nd->path);
         return filp;
 }
 
@@ -991,7 +988,7 @@ static void __put_unused_fd(struct files_struct *files, unsigned int fd)
                 files->next_fd = fd;
 }
 
-void fastcall put_unused_fd(unsigned int fd)
+void put_unused_fd(unsigned int fd)
 {
         struct files_struct *files = current->files;
         spin_lock(&files->file_lock);
@@ -1014,7 +1011,7 @@ EXPORT_SYMBOL(put_unused_fd);
  * will follow.
  */
 
-void fastcall fd_install(unsigned int fd, struct file * file)
+void fd_install(unsigned int fd, struct file *file)
 {
         struct files_struct *files = current->files;
         struct fdtable *fdt;
@@ -1061,7 +1058,6 @@ asmlinkage long sys_open(const char __user *filename, int flags, int mode)
         prevent_tail_call(ret);
         return ret;
 }
-EXPORT_UNUSED_SYMBOL_GPL(sys_open); /* To be deleted for 2.6.25 */
 
 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
                            int mode)
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index 6b7ff1618945..d17b4fd204e1 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -38,6 +38,8 @@ struct op_inode_info {
         union op_inode_data     u;
 };
 
+static struct inode *openprom_iget(struct super_block *sb, ino_t ino);
+
 static inline struct op_inode_info *OP_I(struct inode *inode)
 {
         return container_of(inode, struct op_inode_info, vfs_inode);
@@ -226,10 +228,10 @@ static struct dentry *openpromfs_lookup(struct inode *dir, struct dentry *dentry
         return ERR_PTR(-ENOENT);
 
 found:
-        inode = iget(dir->i_sb, ino);
+        inode = openprom_iget(dir->i_sb, ino);
         mutex_unlock(&op_mutex);
-        if (!inode)
-                return ERR_PTR(-EINVAL);
+        if (IS_ERR(inode))
+                return ERR_CAST(inode);
         ent_oi = OP_I(inode);
         ent_oi->type = ent_type;
         ent_oi->u = ent_data;
@@ -348,14 +350,23 @@ static void openprom_destroy_inode(struct inode *inode)
         kmem_cache_free(op_inode_cachep, OP_I(inode));
 }
 
-static void openprom_read_inode(struct inode * inode)
+static struct inode *openprom_iget(struct super_block *sb, ino_t ino)
 {
-        inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
-        if (inode->i_ino == OPENPROM_ROOT_INO) {
-                inode->i_op = &openprom_inode_operations;
-                inode->i_fop = &openprom_operations;
-                inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+        struct inode *inode;
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (inode->i_state & I_NEW) {
+                inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+                if (inode->i_ino == OPENPROM_ROOT_INO) {
+                        inode->i_op = &openprom_inode_operations;
+                        inode->i_fop = &openprom_operations;
+                        inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+                }
+                unlock_new_inode(inode);
         }
+        return inode;
 }
 
 static int openprom_remount(struct super_block *sb, int *flags, char *data)
@@ -367,7 +378,6 @@ static int openprom_remount(struct super_block *sb, int *flags, char *data)
 static const struct super_operations openprom_sops = {
         .alloc_inode    = openprom_alloc_inode,
         .destroy_inode  = openprom_destroy_inode,
-        .read_inode     = openprom_read_inode,
         .statfs         = simple_statfs,
         .remount_fs     = openprom_remount,
 };
@@ -376,6 +386,7 @@ static int openprom_fill_super(struct super_block *s, void *data, int silent)
 {
         struct inode *root_inode;
         struct op_inode_info *oi;
+        int ret;
 
         s->s_flags |= MS_NOATIME;
         s->s_blocksize = 1024;
@@ -383,9 +394,11 @@ static int openprom_fill_super(struct super_block *s, void *data, int silent)
         s->s_magic = OPENPROM_SUPER_MAGIC;
         s->s_op = &openprom_sops;
         s->s_time_gran = 1;
-        root_inode = iget(s, OPENPROM_ROOT_INO);
-        if (!root_inode)
+        root_inode = openprom_iget(s, OPENPROM_ROOT_INO);
+        if (IS_ERR(root_inode)) {
+                ret = PTR_ERR(root_inode);
                 goto out_no_root;
+        }
 
         oi = OP_I(root_inode);
         oi->type = op_inode_node;
@@ -393,13 +406,15 @@ static int openprom_fill_super(struct super_block *s, void *data, int silent)
 
         s->s_root = d_alloc_root(root_inode);
         if (!s->s_root)
-                goto out_no_root;
+                goto out_no_root_dentry;
         return 0;
 
+out_no_root_dentry:
+        iput(root_inode);
+        ret = -ENOMEM;
 out_no_root:
         printk("openprom_fill_super: get root inode failed\n");
-        iput(root_inode);
-        return -ENOMEM;
+        return ret;
 }
 
 static int openprom_get_sb(struct file_system_type *fs_type,
diff --git a/fs/partitions/Kconfig b/fs/partitions/Kconfig
index a99acd8de353..cb5f0a3f1b03 100644
--- a/fs/partitions/Kconfig
+++ b/fs/partitions/Kconfig
@@ -198,7 +198,7 @@ config LDM_DEBUG
 
 config SGI_PARTITION
         bool "SGI partition support" if PARTITION_ADVANCED
-        default y if (SGI_IP22 || SGI_IP27 || ((MACH_JAZZ || SNI_RM) && !CPU_LITTLE_ENDIAN))
+        default y if DEFAULT_SGI_PARTITION
         help
           Say Y here if you would like to be able to read the hard disk
           partition table format used by SGI machines.
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 739da701ae7b..03f808c5b79d 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -18,6 +18,7 @@
 #include <linux/fs.h>
 #include <linux/kmod.h>
 #include <linux/ctype.h>
+#include <linux/genhd.h>
 
 #include "check.h"
 
@@ -215,9 +216,25 @@ static ssize_t part_stat_show(struct device *dev,
 {
         struct hd_struct *p = dev_to_part(dev);
 
-        return sprintf(buf, "%8u %8llu %8u %8llu\n",
-                       p->ios[0], (unsigned long long)p->sectors[0],
-                       p->ios[1], (unsigned long long)p->sectors[1]);
+        preempt_disable();
+        part_round_stats(p);
+        preempt_enable();
+        return sprintf(buf,
+                "%8lu %8lu %8llu %8u "
+                "%8lu %8lu %8llu %8u "
+                "%8u %8u %8u"
+                "\n",
+                part_stat_read(p, ios[READ]),
+                part_stat_read(p, merges[READ]),
+                (unsigned long long)part_stat_read(p, sectors[READ]),
+                jiffies_to_msecs(part_stat_read(p, ticks[READ])),
+                part_stat_read(p, ios[WRITE]),
+                part_stat_read(p, merges[WRITE]),
+                (unsigned long long)part_stat_read(p, sectors[WRITE]),
+                jiffies_to_msecs(part_stat_read(p, ticks[WRITE])),
+                p->in_flight,
+                jiffies_to_msecs(part_stat_read(p, io_ticks)),
+                jiffies_to_msecs(part_stat_read(p, time_in_queue)));
 }
 
 #ifdef CONFIG_FAIL_MAKE_REQUEST
@@ -273,6 +290,7 @@ static struct attribute_group *part_attr_groups[] = {
 static void part_release(struct device *dev)
 {
         struct hd_struct *p = dev_to_part(dev);
+        free_part_stats(p);
         kfree(p);
 }
 
@@ -312,13 +330,20 @@ void delete_partition(struct gendisk *disk, int part)
         disk->part[part-1] = NULL;
         p->start_sect = 0;
         p->nr_sects = 0;
-        p->ios[0] = p->ios[1] = 0;
-        p->sectors[0] = p->sectors[1] = 0;
+        part_stat_set_all(p, 0);
         kobject_put(p->holder_dir);
         device_del(&p->dev);
         put_device(&p->dev);
 }
 
+static ssize_t whole_disk_show(struct device *dev,
+                               struct device_attribute *attr, char *buf)
+{
+        return 0;
+}
+static DEVICE_ATTR(whole_disk, S_IRUSR | S_IRGRP | S_IROTH,
+                   whole_disk_show, NULL);
+
 void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len, int flags)
 {
         struct hd_struct *p;
@@ -328,6 +353,10 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
         if (!p)
                 return;
 
+        if (!init_part_stats(p)) {
+                kfree(p);
+                return;
+        }
         p->start_sect = start;
         p->nr_sects = len;
         p->partno = part;
@@ -352,13 +381,8 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
         device_add(&p->dev);
         partition_sysfs_add_subdir(p);
         p->dev.uevent_suppress = 0;
-        if (flags & ADDPART_FLAG_WHOLEDISK) {
-                static struct attribute addpartattr = {
-                        .name = "whole_disk",
-                        .mode = S_IRUSR | S_IRGRP | S_IROTH,
-                };
-                err = sysfs_create_file(&p->dev.kobj, &addpartattr);
-        }
+        if (flags & ADDPART_FLAG_WHOLEDISK)
+                err = device_create_file(&p->dev, &dev_attr_whole_disk);
 
         /* suppress uevent if the disk supresses it */
         if (!disk->dev.uevent_suppress)
diff --git a/fs/pipe.c b/fs/pipe.c
index e66ec48e95d8..3c185b6527bc 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -171,7 +171,7 @@ static void anon_pipe_buf_release(struct pipe_inode_info *pipe,
  *
  * Description:
  *      This function returns a kernel virtual address mapping for the
- *      passed in @pipe_buffer. If @atomic is set, an atomic map is provided
+ *      pipe_buffer passed in @buf. If @atomic is set, an atomic map is provided
  *      and the caller has to be careful not to fault before calling
  *      the unmap function.
  *
@@ -208,15 +208,15 @@ void generic_pipe_buf_unmap(struct pipe_inode_info *pipe,
 }
 
 /**
- * generic_pipe_buf_steal - attempt to take ownership of a @pipe_buffer
+ * generic_pipe_buf_steal - attempt to take ownership of a &pipe_buffer
  * @pipe:       the pipe that the buffer belongs to
  * @buf:        the buffer to attempt to steal
  *
  * Description:
- *      This function attempts to steal the @struct page attached to
+ *      This function attempts to steal the &struct page attached to
  *      @buf. If successful, this function returns 0 and returns with
  *      the page locked. The caller may then reuse the page for whatever
- *      he wishes, the typical use is insertion into a different file
+ *      he wishes; the typical use is insertion into a different file
  *      page cache.
  */
 int generic_pipe_buf_steal(struct pipe_inode_info *pipe,
@@ -238,7 +238,7 @@ int generic_pipe_buf_steal(struct pipe_inode_info *pipe,
 }
 
 /**
- * generic_pipe_buf_get - get a reference to a @struct pipe_buffer
+ * generic_pipe_buf_get - get a reference to a &struct pipe_buffer
  * @pipe:       the pipe that the buffer belongs to
  * @buf:        the buffer to get a reference to
  *
@@ -576,9 +576,7 @@ bad_pipe_w(struct file *filp, const char __user *buf, size_t count,
         return -EBADF;
 }
 
-static int
-pipe_ioctl(struct inode *pino, struct file *filp,
-           unsigned int cmd, unsigned long arg)
+static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
         struct inode *inode = filp->f_path.dentry->d_inode;
         struct pipe_inode_info *pipe;
@@ -785,7 +783,7 @@ const struct file_operations read_fifo_fops = {
         .aio_read       = pipe_read,
         .write          = bad_pipe_w,
         .poll           = pipe_poll,
-        .ioctl          = pipe_ioctl,
+        .unlocked_ioctl = pipe_ioctl,
         .open           = pipe_read_open,
         .release        = pipe_read_release,
         .fasync         = pipe_read_fasync,
@@ -797,7 +795,7 @@ const struct file_operations write_fifo_fops = {
         .write          = do_sync_write,
         .aio_write      = pipe_write,
         .poll           = pipe_poll,
-        .ioctl          = pipe_ioctl,
+        .unlocked_ioctl = pipe_ioctl,
         .open           = pipe_write_open,
         .release        = pipe_write_release,
         .fasync         = pipe_write_fasync,
@@ -810,7 +808,7 @@ const struct file_operations rdwr_fifo_fops = {
         .write          = do_sync_write,
         .aio_write      = pipe_write,
         .poll           = pipe_poll,
-        .ioctl          = pipe_ioctl,
+        .unlocked_ioctl = pipe_ioctl,
         .open           = pipe_rdwr_open,
         .release        = pipe_rdwr_release,
         .fasync         = pipe_rdwr_fasync,
@@ -822,7 +820,7 @@ static const struct file_operations read_pipe_fops = {
         .aio_read       = pipe_read,
         .write          = bad_pipe_w,
         .poll           = pipe_poll,
-        .ioctl          = pipe_ioctl,
+        .unlocked_ioctl = pipe_ioctl,
         .open           = pipe_read_open,
         .release        = pipe_read_release,
         .fasync         = pipe_read_fasync,
@@ -834,7 +832,7 @@ static const struct file_operations write_pipe_fops = {
         .write          = do_sync_write,
         .aio_write      = pipe_write,
         .poll           = pipe_poll,
-        .ioctl          = pipe_ioctl,
+        .unlocked_ioctl = pipe_ioctl,
         .open           = pipe_write_open,
         .release        = pipe_write_release,
         .fasync         = pipe_write_fasync,
@@ -847,7 +845,7 @@ static const struct file_operations rdwr_pipe_fops = {
         .write          = do_sync_write,
         .aio_write      = pipe_write,
         .poll           = pipe_poll,
-        .ioctl          = pipe_ioctl,
+        .unlocked_ioctl = pipe_ioctl,
         .open           = pipe_rdwr_open,
         .release        = pipe_rdwr_release,
         .fasync         = pipe_rdwr_fasync,
diff --git a/fs/pnode.c b/fs/pnode.c
index 89940f243fc2..05ba692bc540 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -83,6 +83,8 @@ void change_mnt_propagation(struct vfsmount *mnt, int type)
                 mnt->mnt_master = NULL;
                 if (type == MS_UNBINDABLE)
                         mnt->mnt_flags |= MNT_UNBINDABLE;
+                else
+                        mnt->mnt_flags &= ~MNT_UNBINDABLE;
         }
 }
 
diff --git a/fs/proc/array.c b/fs/proc/array.c
index b380313092bd..07d6c4853fe8 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -77,6 +77,7 @@
 #include <linux/cpuset.h>
 #include <linux/rcupdate.h>
 #include <linux/delayacct.h>
+#include <linux/seq_file.h>
 #include <linux/pid_namespace.h>
 
 #include <asm/pgtable.h>
@@ -88,18 +89,21 @@
 do { memcpy(buffer, string, strlen(string)); \
      buffer += strlen(string); } while (0)
 
-static inline char *task_name(struct task_struct *p, char *buf)
+static inline void task_name(struct seq_file *m, struct task_struct *p)
 {
         int i;
+        char *buf, *end;
         char *name;
         char tcomm[sizeof(p->comm)];
 
         get_task_comm(tcomm, p);
 
-        ADDBUF(buf, "Name:\t");
+        seq_printf(m, "Name:\t");
+        end = m->buf + m->size;
+        buf = m->buf + m->count;
         name = tcomm;
         i = sizeof(tcomm);
-        do {
+        while (i && (buf < end)) {
                 unsigned char c = *name;
                 name++;
                 i--;
@@ -107,20 +111,21 @@ static inline char *task_name(struct task_struct *p, char *buf)
                 if (!c)
                         break;
                 if (c == '\\') {
-                        buf[1] = c;
-                        buf += 2;
+                        buf++;
+                        if (buf < end)
+                                *buf++ = c;
                         continue;
                 }
                 if (c == '\n') {
-                        buf[0] = '\\';
-                        buf[1] = 'n';
-                        buf += 2;
+                        *buf++ = '\\';
+                        if (buf < end)
+                                *buf++ = 'n';
                         continue;
                 }
                 buf++;
-        } while (i);
-        *buf = '\n';
-        return buf+1;
+        }
+        m->count = buf - m->buf;
+        seq_printf(m, "\n");
 }
 
 /*
@@ -151,21 +156,20 @@ static inline const char *get_task_state(struct task_struct *tsk)
         return *p;
 }
 
-static inline char *task_state(struct task_struct *p, char *buffer)
+static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
+                                struct pid *pid, struct task_struct *p)
 {
         struct group_info *group_info;
         int g;
         struct fdtable *fdt = NULL;
-        struct pid_namespace *ns;
         pid_t ppid, tpid;
 
-        ns = current->nsproxy->pid_ns;
         rcu_read_lock();
         ppid = pid_alive(p) ?
                 task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0;
         tpid = pid_alive(p) && p->ptrace ?
                 task_pid_nr_ns(rcu_dereference(p->parent), ns) : 0;
-        buffer += sprintf(buffer,
+        seq_printf(m,
                 "State:\t%s\n"
                 "Tgid:\t%d\n"
                 "Pid:\t%d\n"
@@ -175,7 +179,7 @@ static inline char *task_state(struct task_struct *p, char *buffer)
                 "Gid:\t%d\t%d\t%d\t%d\n",
                 get_task_state(p),
                 task_tgid_nr_ns(p, ns),
-                task_pid_nr_ns(p, ns),
+                pid_nr_ns(pid, ns),
                 ppid, tpid,
                 p->uid, p->euid, p->suid, p->fsuid,
                 p->gid, p->egid, p->sgid, p->fsgid);
@@ -183,7 +187,7 @@ static inline char *task_state(struct task_struct *p, char *buffer)
         task_lock(p);
         if (p->files)
                 fdt = files_fdtable(p->files);
-        buffer += sprintf(buffer,
+        seq_printf(m,
                 "FDSize:\t%d\n"
                 "Groups:\t",
                 fdt ? fdt->max_fds : 0);
@@ -194,20 +198,18 @@ static inline char *task_state(struct task_struct *p, char *buffer)
         task_unlock(p);
 
         for (g = 0; g < min(group_info->ngroups, NGROUPS_SMALL); g++)
-                buffer += sprintf(buffer, "%d ", GROUP_AT(group_info, g));
+                seq_printf(m, "%d ", GROUP_AT(group_info, g));
         put_group_info(group_info);
 
-        buffer += sprintf(buffer, "\n");
-        return buffer;
+        seq_printf(m, "\n");
 }
 
-static char *render_sigset_t(const char *header, sigset_t *set, char *buffer)
+static void render_sigset_t(struct seq_file *m, const char *header,
+                                sigset_t *set)
 {
-        int i, len;
+        int i;
 
-        len = strlen(header);
-        memcpy(buffer, header, len);
-        buffer += len;
+        seq_printf(m, "%s", header);
 
         i = _NSIG;
         do {
@@ -218,12 +220,10 @@ static char *render_sigset_t(const char *header, sigset_t *set, char *buffer)
                 if (sigismember(set, i+2)) x |= 2;
                 if (sigismember(set, i+3)) x |= 4;
                 if (sigismember(set, i+4)) x |= 8;
-                *buffer++ = (x < 10 ? '0' : 'a' - 10) + x;
+                seq_printf(m, "%x", x);
         } while (i >= 4);
 
-        *buffer++ = '\n';
-        *buffer = 0;
-        return buffer;
+        seq_printf(m, "\n");
 }
 
 static void collect_sigign_sigcatch(struct task_struct *p, sigset_t *ign,
@@ -241,7 +241,7 @@ static void collect_sigign_sigcatch(struct task_struct *p, sigset_t *ign,
         }
 }
 
-static inline char *task_sig(struct task_struct *p, char *buffer)
+static inline void task_sig(struct seq_file *m, struct task_struct *p)
 {
         unsigned long flags;
         sigset_t pending, shpending, blocked, ignored, caught;
@@ -268,58 +268,66 @@ static inline char *task_sig(struct task_struct *p, char *buffer)
         }
         rcu_read_unlock();
 
-        buffer += sprintf(buffer, "Threads:\t%d\n", num_threads);
-        buffer += sprintf(buffer, "SigQ:\t%lu/%lu\n", qsize, qlim);
+        seq_printf(m, "Threads:\t%d\n", num_threads);
+        seq_printf(m, "SigQ:\t%lu/%lu\n", qsize, qlim);
 
         /* render them all */
-        buffer = render_sigset_t("SigPnd:\t", &pending, buffer);
-        buffer = render_sigset_t("ShdPnd:\t", &shpending, buffer);
-        buffer = render_sigset_t("SigBlk:\t", &blocked, buffer);
-        buffer = render_sigset_t("SigIgn:\t", &ignored, buffer);
-        buffer = render_sigset_t("SigCgt:\t", &caught, buffer);
+        render_sigset_t(m, "SigPnd:\t", &pending);
+        render_sigset_t(m, "ShdPnd:\t", &shpending);
+        render_sigset_t(m, "SigBlk:\t", &blocked);
+        render_sigset_t(m, "SigIgn:\t", &ignored);
+        render_sigset_t(m, "SigCgt:\t", &caught);
+}
 
-        return buffer;
+static void render_cap_t(struct seq_file *m, const char *header,
+                        kernel_cap_t *a)
+{
+        unsigned __capi;
+
+        seq_printf(m, "%s", header);
+        CAP_FOR_EACH_U32(__capi) {
+                seq_printf(m, "%08x",
+                           a->cap[(_LINUX_CAPABILITY_U32S-1) - __capi]);
+        }
+        seq_printf(m, "\n");
 }
 
-static inline char *task_cap(struct task_struct *p, char *buffer)
+static inline void task_cap(struct seq_file *m, struct task_struct *p)
 {
-    return buffer + sprintf(buffer, "CapInh:\t%016x\n"
-                            "CapPrm:\t%016x\n"
-                            "CapEff:\t%016x\n",
-                            cap_t(p->cap_inheritable),
-                            cap_t(p->cap_permitted),
-                            cap_t(p->cap_effective));
+        render_cap_t(m, "CapInh:\t", &p->cap_inheritable);
+        render_cap_t(m, "CapPrm:\t", &p->cap_permitted);
+        render_cap_t(m, "CapEff:\t", &p->cap_effective);
 }
 
-static inline char *task_context_switch_counts(struct task_struct *p,
-                                                char *buffer)
+static inline void task_context_switch_counts(struct seq_file *m,
+                                                struct task_struct *p)
 {
-        return buffer + sprintf(buffer, "voluntary_ctxt_switches:\t%lu\n"
-                            "nonvoluntary_ctxt_switches:\t%lu\n",
-                            p->nvcsw,
-                            p->nivcsw);
+        seq_printf(m,   "voluntary_ctxt_switches:\t%lu\n"
+                        "nonvoluntary_ctxt_switches:\t%lu\n",
+                        p->nvcsw,
+                        p->nivcsw);
 }
 
-int proc_pid_status(struct task_struct *task, char *buffer)
+int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
+                        struct pid *pid, struct task_struct *task)
 {
-        char *orig = buffer;
         struct mm_struct *mm = get_task_mm(task);
 
-        buffer = task_name(task, buffer);
-        buffer = task_state(task, buffer);
+        task_name(m, task);
+        task_state(m, ns, pid, task);
 
         if (mm) {
-                buffer = task_mem(mm, buffer);
+                task_mem(m, mm);
                 mmput(mm);
         }
-        buffer = task_sig(task, buffer);
-        buffer = task_cap(task, buffer);
-        buffer = cpuset_task_status_allowed(task, buffer);
+        task_sig(m, task);
+        task_cap(m, task);
+        cpuset_task_status_allowed(m, task);
 #if defined(CONFIG_S390)
-        buffer = task_show_regs(task, buffer);
+        task_show_regs(m, task);
 #endif
-        buffer = task_context_switch_counts(task, buffer);
-        return buffer - orig;
+        task_context_switch_counts(m, task);
+        return 0;
 }
 
 /*
@@ -381,14 +389,14 @@ static cputime_t task_gtime(struct task_struct *p)
         return p->gtime;
 }
 
-static int do_task_stat(struct task_struct *task, char *buffer, int whole)
+static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+                        struct pid *pid, struct task_struct *task, int whole)
 {
         unsigned long vsize, eip, esp, wchan = ~0UL;
         long priority, nice;
         int tty_pgrp = -1, tty_nr = 0;
         sigset_t sigign, sigcatch;
         char state;
-        int res;
         pid_t ppid = 0, pgid = -1, sid = -1;
         int num_threads = 0;
         struct mm_struct *mm;
@@ -400,9 +408,6 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
         unsigned long rsslim = 0;
         char tcomm[sizeof(task->comm)];
         unsigned long flags;
-        struct pid_namespace *ns;
-
-        ns = current->nsproxy->pid_ns;
 
         state = *get_task_state(task);
         vsize = eip = esp = 0;
@@ -489,10 +494,10 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
         /* convert nsec -> ticks */
         start_time = nsec_to_clock_t(start_time);
 
-        res = sprintf(buffer, "%d (%s) %c %d %d %d %d %d %u %lu \
+        seq_printf(m, "%d (%s) %c %d %d %d %d %d %u %lu \
 %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
 %lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu %lu %ld\n",
-                task_pid_nr_ns(task, ns),
+                pid_nr_ns(pid, ns),
                 tcomm,
                 state,
                 ppid,
@@ -541,20 +546,23 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                 cputime_to_clock_t(cgtime));
         if (mm)
                 mmput(mm);
-        return res;
+        return 0;
 }
 
-int proc_tid_stat(struct task_struct *task, char *buffer)
+int proc_tid_stat(struct seq_file *m, struct pid_namespace *ns,
+                        struct pid *pid, struct task_struct *task)
 {
-        return do_task_stat(task, buffer, 0);
+        return do_task_stat(m, ns, pid, task, 0);
 }
 
-int proc_tgid_stat(struct task_struct *task, char *buffer)
+int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns,
+                        struct pid *pid, struct task_struct *task)
 {
-        return do_task_stat(task, buffer, 1);
+        return do_task_stat(m, ns, pid, task, 1);
 }
 
-int proc_pid_statm(struct task_struct *task, char *buffer)
+int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+                        struct pid *pid, struct task_struct *task)
 {
         int size = 0, resident = 0, shared = 0, text = 0, lib = 0, data = 0;
         struct mm_struct *mm = get_task_mm(task);
@@ -563,7 +571,8 @@ int proc_pid_statm(struct task_struct *task, char *buffer)
                 size = task_statm(mm, &shared, &text, &data, &resident);
                 mmput(mm);
         }
+        seq_printf(m, "%d %d %d %d %d %d %d\n",
+                        size, resident, shared, text, lib, data, 0);
 
-        return sprintf(buffer, "%d %d %d %d %d %d %d\n",
-                       size, resident, shared, text, lib, data, 0);
+        return 0;
 }
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 33537487f5ab..88f8edf18258 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -88,10 +88,6 @@
  *      in /proc for a task before it execs a suid executable.
  */
 
-
-/* Worst case buffer size needed for holding an integer. */
-#define PROC_NUMBUF 13
-
 struct pid_entry {
         char *name;
         int len;
@@ -125,6 +121,10 @@ struct pid_entry {
         NOD(NAME, (S_IFREG|(MODE)),                     \
                 NULL, &proc_info_file_operations,       \
                 { .proc_read = &proc_##OTYPE } )
+#define ONE(NAME, MODE, OTYPE)                          \
+        NOD(NAME, (S_IFREG|(MODE)),                     \
+                NULL, &proc_single_file_operations,     \
+                { .proc_show = &proc_##OTYPE } )
 
 int maps_protect;
 EXPORT_SYMBOL(maps_protect);
@@ -153,7 +153,7 @@ static int get_nr_threads(struct task_struct *tsk)
         return count;
 }
 
-static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+static int proc_cwd_link(struct inode *inode, struct path *path)
 {
         struct task_struct *task = get_proc_task(inode);
         struct fs_struct *fs = NULL;
@@ -165,8 +165,8 @@ static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfs
         }
         if (fs) {
                 read_lock(&fs->lock);
-                *mnt = mntget(fs->pwdmnt);
-                *dentry = dget(fs->pwd);
+                *path = fs->pwd;
+                path_get(&fs->pwd);
                 read_unlock(&fs->lock);
                 result = 0;
                 put_fs_struct(fs);
@@ -174,7 +174,7 @@ static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfs
         return result;
 }
 
-static int proc_root_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+static int proc_root_link(struct inode *inode, struct path *path)
 {
         struct task_struct *task = get_proc_task(inode);
         struct fs_struct *fs = NULL;
@@ -186,8 +186,8 @@ static int proc_root_link(struct inode *inode, struct dentry **dentry, struct vf
         }
         if (fs) {
                 read_lock(&fs->lock);
-                *mnt = mntget(fs->rootmnt);
-                *dentry = dget(fs->root);
+                *path = fs->root;
+                path_get(&fs->root);
                 read_unlock(&fs->lock);
                 result = 0;
                 put_fs_struct(fs);
@@ -506,7 +506,7 @@ static const struct inode_operations proc_def_inode_operations = {
         .setattr        = proc_setattr,
 };
 
-extern struct seq_operations mounts_op;
+extern const struct seq_operations mounts_op;
 struct proc_mounts {
         struct seq_file m;
         int event;
@@ -585,7 +585,7 @@ static const struct file_operations proc_mounts_operations = {
         .poll           = mounts_poll,
 };
 
-extern struct seq_operations mountstats_op;
+extern const struct seq_operations mountstats_op;
 static int mountstats_open(struct inode *inode, struct file *file)
 {
         int ret = seq_open(file, &mountstats_op);
@@ -662,6 +662,45 @@ static const struct file_operations proc_info_file_operations = {
         .read           = proc_info_read,
 };
 
+static int proc_single_show(struct seq_file *m, void *v)
+{
+        struct inode *inode = m->private;
+        struct pid_namespace *ns;
+        struct pid *pid;
+        struct task_struct *task;
+        int ret;
+
+        ns = inode->i_sb->s_fs_info;
+        pid = proc_pid(inode);
+        task = get_pid_task(pid, PIDTYPE_PID);
+        if (!task)
+                return -ESRCH;
+
+        ret = PROC_I(inode)->op.proc_show(m, ns, pid, task);
+
+        put_task_struct(task);
+        return ret;
+}
+
+static int proc_single_open(struct inode *inode, struct file *filp)
+{
+        int ret;
+        ret = single_open(filp, proc_single_show, NULL);
+        if (!ret) {
+                struct seq_file *m = filp->private_data;
+
+                m->private = inode;
+        }
+        return ret;
+}
+
+static const struct file_operations proc_single_file_operations = {
+        .open           = proc_single_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
 static int mem_open(struct inode* inode, struct file* file)
 {
         file->private_data = (void*)((long)current->self_exec_id);
@@ -787,7 +826,7 @@ out_no_task:
 }
 #endif
 
-static loff_t mem_lseek(struct file * file, loff_t offset, int orig)
+loff_t mem_lseek(struct file *file, loff_t offset, int orig)
 {
         switch (orig) {
         case 0:
@@ -935,42 +974,6 @@ static const struct file_operations proc_oom_adjust_operations = {
         .write          = oom_adjust_write,
 };
 
-#ifdef CONFIG_MMU
-static ssize_t clear_refs_write(struct file *file, const char __user *buf,
-                                size_t count, loff_t *ppos)
-{
-        struct task_struct *task;
-        char buffer[PROC_NUMBUF], *end;
-        struct mm_struct *mm;
-
-        memset(buffer, 0, sizeof(buffer));
-        if (count > sizeof(buffer) - 1)
-                count = sizeof(buffer) - 1;
-        if (copy_from_user(buffer, buf, count))
-                return -EFAULT;
-        if (!simple_strtol(buffer, &end, 0))
-                return -EINVAL;
-        if (*end == '\n')
-                end++;
-        task = get_proc_task(file->f_path.dentry->d_inode);
-        if (!task)
-                return -ESRCH;
-        mm = get_task_mm(task);
-        if (mm) {
-                clear_refs_smap(mm);
-                mmput(mm);
-        }
-        put_task_struct(task);
-        if (end - buffer == 0)
-                return -EIO;
-        return end - buffer;
-}
-
-static struct file_operations proc_clear_refs_operations = {
-        .write          = clear_refs_write,
-};
-#endif
-
 #ifdef CONFIG_AUDITSYSCALL
 #define TMPBUFLEN 21
 static ssize_t proc_loginuid_read(struct file * file, char __user * buf,
@@ -1161,39 +1164,36 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
         int error = -EACCES;
 
         /* We don't need a base pointer in the /proc filesystem */
-        path_release(nd);
+        path_put(&nd->path);
 
         /* Are we allowed to snoop on the tasks file descriptors? */
         if (!proc_fd_access_allowed(inode))
                 goto out;
 
-        error = PROC_I(inode)->op.proc_get_link(inode, &nd->dentry, &nd->mnt);
+        error = PROC_I(inode)->op.proc_get_link(inode, &nd->path);
         nd->last_type = LAST_BIND;
 out:
         return ERR_PTR(error);
 }
 
-static int do_proc_readlink(struct dentry *dentry, struct vfsmount *mnt,
-                            char __user *buffer, int buflen)
+static int do_proc_readlink(struct path *path, char __user *buffer, int buflen)
 {
-        struct inode * inode;
         char *tmp = (char*)__get_free_page(GFP_TEMPORARY);
-        char *path;
+        char *pathname;
         int len;
 
         if (!tmp)
                 return -ENOMEM;
 
-        inode = dentry->d_inode;
-        path = d_path(dentry, mnt, tmp, PAGE_SIZE);
-        len = PTR_ERR(path);
-        if (IS_ERR(path))
+        pathname = d_path(path, tmp, PAGE_SIZE);
+        len = PTR_ERR(pathname);
+        if (IS_ERR(pathname))
                 goto out;
-        len = tmp + PAGE_SIZE - 1 - path;
+        len = tmp + PAGE_SIZE - 1 - pathname;
 
         if (len > buflen)
                 len = buflen;
-        if (copy_to_user(buffer, path, len))
+        if (copy_to_user(buffer, pathname, len))
                 len = -EFAULT;
  out:
         free_page((unsigned long)tmp);
@@ -1204,20 +1204,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
 {
         int error = -EACCES;
         struct inode *inode = dentry->d_inode;
-        struct dentry *de;
-        struct vfsmount *mnt = NULL;
+        struct path path;
 
         /* Are we allowed to snoop on the tasks file descriptors? */
         if (!proc_fd_access_allowed(inode))
                 goto out;
 
-        error = PROC_I(inode)->op.proc_get_link(inode, &de, &mnt);
+        error = PROC_I(inode)->op.proc_get_link(inode, &path);
         if (error)
                 goto out;
 
-        error = do_proc_readlink(de, mnt, buffer, buflen);
-        dput(de);
-        mntput(mnt);
+        error = do_proc_readlink(&path, buffer, buflen);
+        path_put(&path);
 out:
         return error;
 }
@@ -1444,8 +1442,7 @@ out:
 
 #define PROC_FDINFO_MAX 64
 
-static int proc_fd_info(struct inode *inode, struct dentry **dentry,
-                        struct vfsmount **mnt, char *info)
+static int proc_fd_info(struct inode *inode, struct path *path, char *info)
 {
         struct task_struct *task = get_proc_task(inode);
         struct files_struct *files = NULL;
@@ -1464,10 +1461,10 @@ static int proc_fd_info(struct inode *inode, struct dentry **dentry,
                 spin_lock(&files->file_lock);
                 file = fcheck_files(files, fd);
                 if (file) {
-                        if (mnt)
-                                *mnt = mntget(file->f_path.mnt);
-                        if (dentry)
-                                *dentry = dget(file->f_path.dentry);
+                        if (path) {
+                                *path = file->f_path;
+                                path_get(&file->f_path);
+                        }
                         if (info)
                                 snprintf(info, PROC_FDINFO_MAX,
                                          "pos:\t%lli\n"
@@ -1484,10 +1481,9 @@ static int proc_fd_info(struct inode *inode, struct dentry **dentry,
         return -ENOENT;
 }
 
-static int proc_fd_link(struct inode *inode, struct dentry **dentry,
-                        struct vfsmount **mnt)
+static int proc_fd_link(struct inode *inode, struct path *path)
 {
-        return proc_fd_info(inode, dentry, mnt, NULL);
+        return proc_fd_info(inode, path, NULL);
 }
 
 static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
@@ -1681,7 +1677,7 @@ static ssize_t proc_fdinfo_read(struct file *file, char __user *buf,
                                       size_t len, loff_t *ppos)
 {
         char tmp[PROC_FDINFO_MAX];
-        int err = proc_fd_info(file->f_path.dentry->d_inode, NULL, NULL, tmp);
+        int err = proc_fd_info(file->f_path.dentry->d_inode, NULL, tmp);
         if (!err)
                 err = simple_read_from_buffer(buf, len, ppos, tmp, strlen(tmp));
         return err;
@@ -2098,15 +2094,23 @@ static const struct file_operations proc_coredump_filter_operations = {
 static int proc_self_readlink(struct dentry *dentry, char __user *buffer,
                               int buflen)
 {
+        struct pid_namespace *ns = dentry->d_sb->s_fs_info;
+        pid_t tgid = task_tgid_nr_ns(current, ns);
         char tmp[PROC_NUMBUF];
-        sprintf(tmp, "%d", task_tgid_vnr(current));
+        if (!tgid)
+                return -ENOENT;
+        sprintf(tmp, "%d", tgid);
         return vfs_readlink(dentry,buffer,buflen,tmp);
 }
 
 static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
+        struct pid_namespace *ns = dentry->d_sb->s_fs_info;
+        pid_t tgid = task_tgid_nr_ns(current, ns);
         char tmp[PROC_NUMBUF];
-        sprintf(tmp, "%d", task_tgid_vnr(current));
+        if (!tgid)
+                return ERR_PTR(-ENOENT);
+        sprintf(tmp, "%d", task_tgid_nr_ns(current, ns));
         return ERR_PTR(vfs_follow_link(nd,tmp));
 }
 
@@ -2271,14 +2275,14 @@ static const struct pid_entry tgid_base_stuff[] = {
         DIR("fdinfo",     S_IRUSR|S_IXUSR, fdinfo),
         REG("environ",    S_IRUSR, environ),
         INF("auxv",       S_IRUSR, pid_auxv),
-        INF("status",     S_IRUGO, pid_status),
+        ONE("status",     S_IRUGO, pid_status),
         INF("limits",     S_IRUSR, pid_limits),
 #ifdef CONFIG_SCHED_DEBUG
         REG("sched",      S_IRUGO|S_IWUSR, pid_sched),
 #endif
         INF("cmdline",    S_IRUGO, pid_cmdline),
-        INF("stat",       S_IRUGO, tgid_stat),
-        INF("statm",      S_IRUGO, pid_statm),
+        ONE("stat",       S_IRUGO, tgid_stat),
+        ONE("statm",      S_IRUGO, pid_statm),
         REG("maps",       S_IRUGO, maps),
 #ifdef CONFIG_NUMA
         REG("numa_maps",  S_IRUGO, numa_maps),
@@ -2289,9 +2293,10 @@ static const struct pid_entry tgid_base_stuff[] = {
         LNK("exe",        exe),
         REG("mounts",     S_IRUGO, mounts),
         REG("mountstats", S_IRUSR, mountstats),
-#ifdef CONFIG_MMU
+#ifdef CONFIG_PROC_PAGE_MONITOR
         REG("clear_refs", S_IWUSR, clear_refs),
         REG("smaps",      S_IRUGO, smaps),
+        REG("pagemap",    S_IRUSR, pagemap),
 #endif
 #ifdef CONFIG_SECURITY
         DIR("attr",       S_IRUGO|S_IXUGO, attr_dir),
@@ -2360,7 +2365,8 @@ static void proc_flush_task_mnt(struct vfsmount *mnt, pid_t pid, pid_t tgid)
         name.len = snprintf(buf, sizeof(buf), "%d", pid);
         dentry = d_hash_and_lookup(mnt->mnt_root, &name);
         if (dentry) {
-                shrink_dcache_parent(dentry);
+                if (!(current->flags & PF_EXITING))
+                        shrink_dcache_parent(dentry);
                 d_drop(dentry);
                 dput(dentry);
         }
@@ -2600,14 +2606,14 @@ static const struct pid_entry tid_base_stuff[] = {
         DIR("fdinfo",    S_IRUSR|S_IXUSR, fdinfo),
         REG("environ",   S_IRUSR, environ),
         INF("auxv",      S_IRUSR, pid_auxv),
-        INF("status",    S_IRUGO, pid_status),
+        ONE("status",    S_IRUGO, pid_status),
         INF("limits",    S_IRUSR, pid_limits),
 #ifdef CONFIG_SCHED_DEBUG
         REG("sched",     S_IRUGO|S_IWUSR, pid_sched),
 #endif
         INF("cmdline",   S_IRUGO, pid_cmdline),
-        INF("stat",      S_IRUGO, tid_stat),
-        INF("statm",     S_IRUGO, pid_statm),
+        ONE("stat",      S_IRUGO, tid_stat),
+        ONE("statm",     S_IRUGO, pid_statm),
         REG("maps",      S_IRUGO, maps),
 #ifdef CONFIG_NUMA
         REG("numa_maps", S_IRUGO, numa_maps),
@@ -2617,9 +2623,10 @@ static const struct pid_entry tid_base_stuff[] = {
         LNK("root",      root),
         LNK("exe",       exe),
         REG("mounts",    S_IRUGO, mounts),
-#ifdef CONFIG_MMU
+#ifdef CONFIG_PROC_PAGE_MONITOR
         REG("clear_refs", S_IWUSR, clear_refs),
         REG("smaps",     S_IRUGO, smaps),
+        REG("pagemap",    S_IRUSR, pagemap),
 #endif
 #ifdef CONFIG_SECURITY
         DIR("attr",      S_IRUGO|S_IXUGO, attr_dir),
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 6a2fe5187b62..68971e66cd41 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -25,12 +25,6 @@
 
 #include "internal.h"
 
-static ssize_t proc_file_read(struct file *file, char __user *buf,
-                              size_t nbytes, loff_t *ppos);
-static ssize_t proc_file_write(struct file *file, const char __user *buffer,
-                               size_t count, loff_t *ppos);
-static loff_t proc_file_lseek(struct file *, loff_t, int);
-
 DEFINE_SPINLOCK(proc_subdir_lock);
 
 static int proc_match(int len, const char *name, struct proc_dir_entry *de)
@@ -40,12 +34,6 @@ static int proc_match(int len, const char *name, struct proc_dir_entry *de)
         return !memcmp(name, de->name, len);
 }
 
-static const struct file_operations proc_file_operations = {
-        .llseek         = proc_file_lseek,
-        .read           = proc_file_read,
-        .write          = proc_file_write,
-};
-
 /* buffer size is one page but our output routines use some slack for overruns */
 #define PROC_BLOCK_SIZE (PAGE_SIZE - 1024)
 
@@ -233,6 +221,12 @@ proc_file_lseek(struct file *file, loff_t offset, int orig)
         return retval;
 }
 
+static const struct file_operations proc_file_operations = {
+        .llseek         = proc_file_lseek,
+        .read           = proc_file_read,
+        .write          = proc_file_write,
+};
+
 static int proc_notify_change(struct dentry *dentry, struct iattr *iattr)
 {
         struct inode *inode = dentry->d_inode;
@@ -406,12 +400,12 @@ struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nam
                                 spin_unlock(&proc_subdir_lock);
                                 error = -EINVAL;
                                 inode = proc_get_inode(dir->i_sb, ino, de);
-                                spin_lock(&proc_subdir_lock);
-                                break;
+                                goto out_unlock;
                         }
                 }
         }
         spin_unlock(&proc_subdir_lock);
+out_unlock:
         unlock_kernel();
 
         if (inode) {
@@ -527,6 +521,7 @@ static const struct inode_operations proc_dir_inode_operations = {
 static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
 {
         unsigned int i;
+        struct proc_dir_entry *tmp;
         
         i = get_inode_number();
         if (i == 0)
@@ -550,6 +545,15 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
         }
 
         spin_lock(&proc_subdir_lock);
+
+        for (tmp = dir->subdir; tmp; tmp = tmp->next)
+                if (strcmp(tmp->name, dp->name) == 0) {
+                        printk(KERN_WARNING "proc_dir_entry '%s' already "
+                                        "registered\n", dp->name);
+                        dump_stack();
+                        break;
+                }
+
         dp->next = dir->subdir;
         dp->parent = dir;
         dir->subdir = dp;
@@ -558,7 +562,7 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
         return 0;
 }
 
-static struct proc_dir_entry *proc_create(struct proc_dir_entry **parent,
+static struct proc_dir_entry *__proc_create(struct proc_dir_entry **parent,
                                           const char *name,
                                           mode_t mode,
                                           nlink_t nlink)
@@ -601,7 +605,7 @@ struct proc_dir_entry *proc_symlink(const char *name,
 {
         struct proc_dir_entry *ent;
 
-        ent = proc_create(&parent,name,
+        ent = __proc_create(&parent, name,
                           (S_IFLNK | S_IRUGO | S_IWUGO | S_IXUGO),1);
 
         if (ent) {
@@ -626,7 +630,7 @@ struct proc_dir_entry *proc_mkdir_mode(const char *name, mode_t mode,
 {
         struct proc_dir_entry *ent;
 
-        ent = proc_create(&parent, name, S_IFDIR | mode, 2);
+        ent = __proc_create(&parent, name, S_IFDIR | mode, 2);
         if (ent) {
                 if (proc_register(parent, ent) < 0) {
                         kfree(ent);
@@ -660,7 +664,7 @@ struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
                 nlink = 1;
         }
 
-        ent = proc_create(&parent,name,mode,nlink);
+        ent = __proc_create(&parent, name, mode, nlink);
         if (ent) {
                 if (proc_register(parent, ent) < 0) {
                         kfree(ent);
@@ -670,6 +674,38 @@ struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
         return ent;
 }
 
+struct proc_dir_entry *proc_create(const char *name, mode_t mode,
+                                   struct proc_dir_entry *parent,
+                                   const struct file_operations *proc_fops)
+{
+        struct proc_dir_entry *pde;
+        nlink_t nlink;
+
+        if (S_ISDIR(mode)) {
+                if ((mode & S_IALLUGO) == 0)
+                        mode |= S_IRUGO | S_IXUGO;
+                nlink = 2;
+        } else {
+                if ((mode & S_IFMT) == 0)
+                        mode |= S_IFREG;
+                if ((mode & S_IALLUGO) == 0)
+                        mode |= S_IRUGO;
+                nlink = 1;
+        }
+
+        pde = __proc_create(&parent, name, mode, nlink);
+        if (!pde)
+                goto out;
+        pde->proc_fops = proc_fops;
+        if (proc_register(parent, pde) < 0)
+                goto out_free;
+        return pde;
+out_free:
+        kfree(pde);
+out:
+        return NULL;
+}
+
 void free_proc_entry(struct proc_dir_entry *de)
 {
         unsigned int ino = de->low_ino;
@@ -679,7 +715,7 @@ void free_proc_entry(struct proc_dir_entry *de)
 
         release_inode_number(ino);
 
-        if (S_ISLNK(de->mode) && de->data)
+        if (S_ISLNK(de->mode))
                 kfree(de->data);
         kfree(de);
 }
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 1a551d92e1d8..82b3a1b5a70b 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -73,11 +73,6 @@ static void proc_delete_inode(struct inode *inode)
 
 struct vfsmount *proc_mnt;
 
-static void proc_read_inode(struct inode * inode)
-{
-        inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
-}
-
 static struct kmem_cache * proc_inode_cachep;
 
 static struct inode *proc_alloc_inode(struct super_block *sb)
@@ -128,7 +123,6 @@ static int proc_remount(struct super_block *sb, int *flags, char *data)
 static const struct super_operations proc_sops = {
         .alloc_inode    = proc_alloc_inode,
         .destroy_inode  = proc_destroy_inode,
-        .read_inode     = proc_read_inode,
         .drop_inode     = generic_delete_inode,
         .delete_inode   = proc_delete_inode,
         .statfs         = simple_statfs,
@@ -401,39 +395,41 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
         if (de != NULL && !try_module_get(de->owner))
                 goto out_mod;
 
-        inode = iget(sb, ino);
+        inode = iget_locked(sb, ino);
         if (!inode)
                 goto out_ino;
-
-        PROC_I(inode)->fd = 0;
-        PROC_I(inode)->pde = de;
-        if (de) {
-                if (de->mode) {
-                        inode->i_mode = de->mode;
-                        inode->i_uid = de->uid;
-                        inode->i_gid = de->gid;
-                }
-                if (de->size)
-                        inode->i_size = de->size;
-                if (de->nlink)
-                        inode->i_nlink = de->nlink;
-                if (de->proc_iops)
-                        inode->i_op = de->proc_iops;
-                if (de->proc_fops) {
-                        if (S_ISREG(inode->i_mode)) {
+        if (inode->i_state & I_NEW) {
+                inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+                PROC_I(inode)->fd = 0;
+                PROC_I(inode)->pde = de;
+                if (de) {
+                        if (de->mode) {
+                                inode->i_mode = de->mode;
+                                inode->i_uid = de->uid;
+                                inode->i_gid = de->gid;
+                        }
+                        if (de->size)
+                                inode->i_size = de->size;
+                        if (de->nlink)
+                                inode->i_nlink = de->nlink;
+                        if (de->proc_iops)
+                                inode->i_op = de->proc_iops;
+                        if (de->proc_fops) {
+                                if (S_ISREG(inode->i_mode)) {
 #ifdef CONFIG_COMPAT
-                                if (!de->proc_fops->compat_ioctl)
-                                        inode->i_fop =
-                                                &proc_reg_file_ops_no_compat;
-                                else
+                                        if (!de->proc_fops->compat_ioctl)
+                                                inode->i_fop =
+                                                        &proc_reg_file_ops_no_compat;
+                                        else
 #endif
-                                        inode->i_fop = &proc_reg_file_ops;
+                                                inode->i_fop = &proc_reg_file_ops;
+                                } else {
+                                        inode->i_fop = de->proc_fops;
+                                }
                         }
-                        else
-                                inode->i_fop = de->proc_fops;
                 }
+                unlock_new_inode(inode);
         }
-
         return inode;
 
 out_ino:
@@ -471,4 +467,3 @@ out_no_root:
         de_put(&proc_root);
         return -ENOMEM;
 }
-MODULE_LICENSE("GPL");
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 05b3e9006262..1c81c8f1aeed 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -46,21 +46,24 @@ extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *);
 
 extern int maps_protect;
 
-extern void create_seq_entry(char *name, mode_t mode, const struct file_operations *f);
-extern int proc_exe_link(struct inode *, struct dentry **, struct vfsmount **);
-extern int proc_tid_stat(struct task_struct *,  char *);
-extern int proc_tgid_stat(struct task_struct *, char *);
-extern int proc_pid_status(struct task_struct *, char *);
-extern int proc_pid_statm(struct task_struct *, char *);
+extern void create_seq_entry(char *name, mode_t mode,
+                                const struct file_operations *f);
+extern int proc_exe_link(struct inode *, struct path *);
+extern int proc_tid_stat(struct seq_file *m, struct pid_namespace *ns,
+                                struct pid *pid, struct task_struct *task);
+extern int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns,
+                                struct pid *pid, struct task_struct *task);
+extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
+                                struct pid *pid, struct task_struct *task);
+extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+                                struct pid *pid, struct task_struct *task);
+extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
 
 extern const struct file_operations proc_maps_operations;
 extern const struct file_operations proc_numa_maps_operations;
 extern const struct file_operations proc_smaps_operations;
-
-extern const struct file_operations proc_maps_operations;
-extern const struct file_operations proc_numa_maps_operations;
-extern const struct file_operations proc_smaps_operations;
-
+extern const struct file_operations proc_clear_refs_operations;
+extern const struct file_operations proc_pagemap_operations;
 
 void free_proc_entry(struct proc_dir_entry *de);
 
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 1be73082edd3..e78c81fcf547 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -12,7 +12,6 @@
 #include <linux/mm.h>
 #include <linux/proc_fs.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/capability.h>
 #include <linux/elf.h>
 #include <linux/elfcore.h>
@@ -325,7 +324,7 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
                 if (m == NULL) {
                         if (clear_user(buffer, tsz))
                                 return -EFAULT;
-                } else if ((start >= VMALLOC_START) && (start < VMALLOC_END)) {
+                } else if (is_vmalloc_addr((void *)start)) {
                         char * elf_buf;
                         struct vm_struct *m;
                         unsigned long curstart = start;
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index 22f789de3909..941e95114b5a 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -67,7 +67,7 @@ int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
                 if (len < 1)
                         len = 1;
                 seq_printf(m, "%*c", len, ' ');
-                seq_path(m, file->f_path.mnt, file->f_path.dentry, "");
+                seq_path(m, &file->f_path, "");
         }
 
         seq_putc(m, '\n');
@@ -116,7 +116,7 @@ static void *nommu_vma_list_next(struct seq_file *m, void *v, loff_t *pos)
         return rb_next((struct rb_node *) v);
 }
 
-static struct seq_operations proc_nommu_vma_list_seqop = {
+static const struct seq_operations proc_nommu_vma_list_seqop = {
         .start  = nommu_vma_list_start,
         .next   = nommu_vma_list_next,
         .stop   = nommu_vma_list_stop,
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 3462bfde89f6..468805d40e2b 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -29,6 +29,7 @@
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/pagemap.h>
+#include <linux/interrupt.h>
 #include <linux/swap.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
@@ -46,6 +47,7 @@
 #include <linux/vmalloc.h>
 #include <linux/crash_dump.h>
 #include <linux/pid_namespace.h>
+#include <linux/bootmem.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
@@ -63,7 +65,6 @@
  */
 extern int get_hardware_list(char *);
 extern int get_stram_list(char *);
-extern int get_filesystem_list(char *);
 extern int get_exec_domain_list(char *);
 extern int get_dma_list(char *);
 
@@ -83,10 +84,15 @@ static int loadavg_read_proc(char *page, char **start, off_t off,
 {
         int a, b, c;
         int len;
+        unsigned long seq;
+
+        do {
+                seq = read_seqbegin(&xtime_lock);
+                a = avenrun[0] + (FIXED_1/200);
+                b = avenrun[1] + (FIXED_1/200);
+                c = avenrun[2] + (FIXED_1/200);
+        } while (read_seqretry(&xtime_lock, seq));
 
-        a = avenrun[0] + (FIXED_1/200);
-        b = avenrun[1] + (FIXED_1/200);
-        c = avenrun[2] + (FIXED_1/200);
         len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
                 LOAD_INT(a), LOAD_FRAC(a),
                 LOAD_INT(b), LOAD_FRAC(b),
@@ -216,7 +222,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
 #undef K
 }
 
-extern struct seq_operations fragmentation_op;
+extern const struct seq_operations fragmentation_op;
 static int fragmentation_open(struct inode *inode, struct file *file)
 {
         (void)inode;
@@ -230,7 +236,7 @@ static const struct file_operations fragmentation_file_operations = {
         .release        = seq_release,
 };
 
-extern struct seq_operations pagetypeinfo_op;
+extern const struct seq_operations pagetypeinfo_op;
 static int pagetypeinfo_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &pagetypeinfo_op);
@@ -243,7 +249,7 @@ static const struct file_operations pagetypeinfo_file_ops = {
         .release        = seq_release,
 };
 
-extern struct seq_operations zoneinfo_op;
+extern const struct seq_operations zoneinfo_op;
 static int zoneinfo_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &zoneinfo_op);
@@ -268,7 +274,7 @@ static int version_read_proc(char *page, char **start, off_t off,
         return proc_calc_metrics(page, start, off, count, eof, len);
 }
 
-extern struct seq_operations cpuinfo_op;
+extern const struct seq_operations cpuinfo_op;
 static int cpuinfo_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &cpuinfo_op);
@@ -321,7 +327,7 @@ static void devinfo_stop(struct seq_file *f, void *v)
         /* Nothing to do */
 }
 
-static struct seq_operations devinfo_ops = {
+static const struct seq_operations devinfo_ops = {
         .start = devinfo_start,
         .next  = devinfo_next,
         .stop  = devinfo_stop,
@@ -340,7 +346,7 @@ static const struct file_operations proc_devinfo_operations = {
         .release        = seq_release,
 };
 
-extern struct seq_operations vmstat_op;
+extern const struct seq_operations vmstat_op;
 static int vmstat_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &vmstat_op);
@@ -371,7 +377,7 @@ static int stram_read_proc(char *page, char **start, off_t off,
 #endif
 
 #ifdef CONFIG_BLOCK
-extern struct seq_operations partitions_op;
+extern const struct seq_operations partitions_op;
 static int partitions_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &partitions_op);
@@ -383,7 +389,7 @@ static const struct file_operations proc_partitions_operations = {
         .release        = seq_release,
 };
 
-extern struct seq_operations diskstats_op;
+extern const struct seq_operations diskstats_op;
 static int diskstats_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &diskstats_op);
@@ -397,7 +403,7 @@ static const struct file_operations proc_diskstats_operations = {
 #endif
 
 #ifdef CONFIG_MODULES
-extern struct seq_operations modules_op;
+extern const struct seq_operations modules_op;
 static int modules_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &modules_op);
@@ -424,7 +430,7 @@ static const struct file_operations proc_slabinfo_operations = {
 };
 
 #ifdef CONFIG_DEBUG_SLAB_LEAK
-extern struct seq_operations slabstats_op;
+extern const struct seq_operations slabstats_op;
 static int slabstats_open(struct inode *inode, struct file *file)
 {
         unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
@@ -598,8 +604,7 @@ static void int_seq_stop(struct seq_file *f, void *v)
 }
 
 
-extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */
-static struct seq_operations int_seq_ops = {
+static const struct seq_operations int_seq_ops = {
         .start = int_seq_start,
         .next  = int_seq_next,
         .stop  = int_seq_stop,
@@ -675,6 +680,137 @@ static const struct file_operations proc_sysrq_trigger_operations = {
 };
 #endif
 
+#ifdef CONFIG_PROC_PAGE_MONITOR
+#define KPMSIZE sizeof(u64)
+#define KPMMASK (KPMSIZE - 1)
+/* /proc/kpagecount - an array exposing page counts
+ *
+ * Each entry is a u64 representing the corresponding
+ * physical page count.
+ */
+static ssize_t kpagecount_read(struct file *file, char __user *buf,
+                             size_t count, loff_t *ppos)
+{
+        u64 __user *out = (u64 __user *)buf;
+        struct page *ppage;
+        unsigned long src = *ppos;
+        unsigned long pfn;
+        ssize_t ret = 0;
+        u64 pcount;
+
+        pfn = src / KPMSIZE;
+        count = min_t(size_t, count, (max_pfn * KPMSIZE) - src);
+        if (src & KPMMASK || count & KPMMASK)
+                return -EIO;
+
+        while (count > 0) {
+                ppage = NULL;
+                if (pfn_valid(pfn))
+                        ppage = pfn_to_page(pfn);
+                pfn++;
+                if (!ppage)
+                        pcount = 0;
+                else
+                        pcount = atomic_read(&ppage->_count);
+
+                if (put_user(pcount, out++)) {
+                        ret = -EFAULT;
+                        break;
+                }
+
+                count -= KPMSIZE;
+        }
+
+        *ppos += (char __user *)out - buf;
+        if (!ret)
+                ret = (char __user *)out - buf;
+        return ret;
+}
+
+static struct file_operations proc_kpagecount_operations = {
+        .llseek = mem_lseek,
+        .read = kpagecount_read,
+};
+
+/* /proc/kpageflags - an array exposing page flags
+ *
+ * Each entry is a u64 representing the corresponding
+ * physical page flags.
+ */
+
+/* These macros are used to decouple internal flags from exported ones */
+
+#define KPF_LOCKED     0
+#define KPF_ERROR      1
+#define KPF_REFERENCED 2
+#define KPF_UPTODATE   3
+#define KPF_DIRTY      4
+#define KPF_LRU        5
+#define KPF_ACTIVE     6
+#define KPF_SLAB       7
+#define KPF_WRITEBACK  8
+#define KPF_RECLAIM    9
+#define KPF_BUDDY     10
+
+#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
+
+static ssize_t kpageflags_read(struct file *file, char __user *buf,
+                             size_t count, loff_t *ppos)
+{
+        u64 __user *out = (u64 __user *)buf;
+        struct page *ppage;
+        unsigned long src = *ppos;
+        unsigned long pfn;
+        ssize_t ret = 0;
+        u64 kflags, uflags;
+
+        pfn = src / KPMSIZE;
+        count = min_t(unsigned long, count, (max_pfn * KPMSIZE) - src);
+        if (src & KPMMASK || count & KPMMASK)
+                return -EIO;
+
+        while (count > 0) {
+                ppage = NULL;
+                if (pfn_valid(pfn))
+                        ppage = pfn_to_page(pfn);
+                pfn++;
+                if (!ppage)
+                        kflags = 0;
+                else
+                        kflags = ppage->flags;
+
+                uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
+                        kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
+                        kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
+                        kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |
+                        kpf_copy_bit(kflags, KPF_DIRTY, PG_dirty) |
+                        kpf_copy_bit(kflags, KPF_LRU, PG_lru) |
+                        kpf_copy_bit(kflags, KPF_ACTIVE, PG_active) |
+                        kpf_copy_bit(kflags, KPF_SLAB, PG_slab) |
+                        kpf_copy_bit(kflags, KPF_WRITEBACK, PG_writeback) |
+                        kpf_copy_bit(kflags, KPF_RECLAIM, PG_reclaim) |
+                        kpf_copy_bit(kflags, KPF_BUDDY, PG_buddy);
+
+                if (put_user(uflags, out++)) {
+                        ret = -EFAULT;
+                        break;
+                }
+
+                count -= KPMSIZE;
+        }
+
+        *ppos += (char __user *)out - buf;
+        if (!ret)
+                ret = (char __user *)out - buf;
+        return ret;
+}
+
+static struct file_operations proc_kpageflags_operations = {
+        .llseek = mem_lseek,
+        .read = kpageflags_read,
+};
+#endif /* CONFIG_PROC_PAGE_MONITOR */
+
 struct proc_dir_entry *proc_root_kcore;
 
 void create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
@@ -755,6 +891,10 @@ void __init proc_misc_init(void)
                                 (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
         }
 #endif
+#ifdef CONFIG_PROC_PAGE_MONITOR
+        create_seq_entry("kpagecount", S_IRUSR, &proc_kpagecount_operations);
+        create_seq_entry("kpageflags", S_IRUSR, &proc_kpageflags_operations);
+#endif
 #ifdef CONFIG_PROC_VMCORE
         proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
         if (proc_vmcore)
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 4823c9677fac..14e9b5aaf863 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -67,12 +67,7 @@ EXPORT_SYMBOL_GPL(seq_release_net);
 struct proc_dir_entry *proc_net_fops_create(struct net *net,
         const char *name, mode_t mode, const struct file_operations *fops)
 {
-        struct proc_dir_entry *res;
-
-        res = create_proc_entry(name, mode, net->proc_net);
-        if (res)
-                res->proc_fops = fops;
-        return res;
+        return proc_create(name, mode, net->proc_net, fops);
 }
 EXPORT_SYMBOL_GPL(proc_net_fops_create);
 
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 4e57fcf85982..614c34b6d1c2 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -9,7 +9,7 @@
 
 static struct dentry_operations proc_sys_dentry_operations;
 static const struct file_operations proc_sys_file_operations;
-static struct inode_operations proc_sys_inode_operations;
+static const struct inode_operations proc_sys_inode_operations;
 
 static void proc_sys_refresh_inode(struct inode *inode, struct ctl_table *table)
 {
@@ -407,7 +407,7 @@ static int proc_sys_permission(struct inode *inode, int mask, struct nameidata *
         if (!nd || !depth)
                 goto out;
 
-        dentry = nd->dentry;
+        dentry = nd->path.dentry;
         table = do_proc_sys_lookup(dentry->d_parent, &dentry->d_name, &head);
 
         /* If the entry does not exist deny permission */
@@ -446,7 +446,7 @@ static const struct file_operations proc_sys_file_operations = {
         .readdir        = proc_sys_readdir,
 };
 
-static struct inode_operations proc_sys_inode_operations = {
+static const struct inode_operations proc_sys_inode_operations = {
         .lookup         = proc_sys_lookup,
         .permission     = proc_sys_permission,
         .setattr        = proc_sys_setattr,
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index 22846225acfa..49816e00b51a 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -15,9 +15,6 @@
 #include <linux/seq_file.h>
 #include <linux/bitops.h>
 
-static int tty_ldiscs_read_proc(char *page, char **start, off_t off,
-                                int count, int *eof, void *data);
-
 /*
  * The /proc/tty directory inodes...
  */
@@ -120,7 +117,7 @@ static void t_stop(struct seq_file *m, void *v)
         mutex_unlock(&tty_mutex);
 }
 
-static struct seq_operations tty_drivers_op = {
+static const struct seq_operations tty_drivers_op = {
         .start  = t_start,
         .next   = t_next,
         .stop   = t_stop,
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 81f99e691f99..ef0fb57fc9ef 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -232,6 +232,7 @@ void pid_ns_release_proc(struct pid_namespace *ns)
 EXPORT_SYMBOL(proc_symlink);
 EXPORT_SYMBOL(proc_mkdir);
 EXPORT_SYMBOL(create_proc_entry);
+EXPORT_SYMBOL(proc_create);
 EXPORT_SYMBOL(remove_proc_entry);
 EXPORT_SYMBOL(proc_root);
 EXPORT_SYMBOL(proc_root_fs);
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 8043a3eab52c..49958cffbd8d 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -5,14 +5,18 @@
 #include <linux/highmem.h>
 #include <linux/ptrace.h>
 #include <linux/pagemap.h>
+#include <linux/ptrace.h>
 #include <linux/mempolicy.h>
+#include <linux/swap.h>
+#include <linux/swapops.h>
+#include <linux/seq_file.h>
 
 #include <asm/elf.h>
 #include <asm/uaccess.h>
 #include <asm/tlbflush.h>
 #include "internal.h"
 
-char *task_mem(struct mm_struct *mm, char *buffer)
+void task_mem(struct seq_file *m, struct mm_struct *mm)
 {
         unsigned long data, text, lib;
         unsigned long hiwater_vm, total_vm, hiwater_rss, total_rss;
@@ -34,7 +38,7 @@ char *task_mem(struct mm_struct *mm, char *buffer)
         data = mm->total_vm - mm->shared_vm - mm->stack_vm;
         text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> 10;
         lib = (mm->exec_vm << (PAGE_SHIFT-10)) - text;
-        buffer += sprintf(buffer,
+        seq_printf(m,
                 "VmPeak:\t%8lu kB\n"
                 "VmSize:\t%8lu kB\n"
                 "VmLck:\t%8lu kB\n"
@@ -53,7 +57,6 @@ char *task_mem(struct mm_struct *mm, char *buffer)
                 data << (PAGE_SHIFT-10),
                 mm->stack_vm << (PAGE_SHIFT-10), text, lib,
                 (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10);
-        return buffer;
 }
 
 unsigned long task_vsize(struct mm_struct *mm)
@@ -72,7 +75,7 @@ int task_statm(struct mm_struct *mm, int *shared, int *text,
         return mm->total_vm;
 }
 
-int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+int proc_exe_link(struct inode *inode, struct path *path)
 {
         struct vm_area_struct * vma;
         int result = -ENOENT;
@@ -95,8 +98,8 @@ int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount *
         }
 
         if (vma) {
-                *mnt = mntget(vma->vm_file->f_path.mnt);
-                *dentry = dget(vma->vm_file->f_path.dentry);
+                *path = vma->vm_file->f_path;
+                path_get(&vma->vm_file->f_path);
                 result = 0;
         }
 
@@ -114,24 +117,124 @@ static void pad_len_spaces(struct seq_file *m, int len)
         seq_printf(m, "%*c", len, ' ');
 }
 
-struct mem_size_stats
+static void vma_stop(struct proc_maps_private *priv, struct vm_area_struct *vma)
 {
-        unsigned long resident;
-        unsigned long shared_clean;
-        unsigned long shared_dirty;
-        unsigned long private_clean;
-        unsigned long private_dirty;
-        unsigned long referenced;
-};
+        if (vma && vma != priv->tail_vma) {
+                struct mm_struct *mm = vma->vm_mm;
+                up_read(&mm->mmap_sem);
+                mmput(mm);
+        }
+}
 
-struct pmd_walker {
-        struct vm_area_struct *vma;
-        void *private;
-        void (*action)(struct vm_area_struct *, pmd_t *, unsigned long,
-                       unsigned long, void *);
-};
+static void *m_start(struct seq_file *m, loff_t *pos)
+{
+        struct proc_maps_private *priv = m->private;
+        unsigned long last_addr = m->version;
+        struct mm_struct *mm;
+        struct vm_area_struct *vma, *tail_vma = NULL;
+        loff_t l = *pos;
+
+        /* Clear the per syscall fields in priv */
+        priv->task = NULL;
+        priv->tail_vma = NULL;
+
+        /*
+         * We remember last_addr rather than next_addr to hit with
+         * mmap_cache most of the time. We have zero last_addr at
+         * the beginning and also after lseek. We will have -1 last_addr
+         * after the end of the vmas.
+         */
+
+        if (last_addr == -1UL)
+                return NULL;
+
+        priv->task = get_pid_task(priv->pid, PIDTYPE_PID);
+        if (!priv->task)
+                return NULL;
+
+        mm = mm_for_maps(priv->task);
+        if (!mm)
+                return NULL;
+
+        tail_vma = get_gate_vma(priv->task);
+        priv->tail_vma = tail_vma;
+
+        /* Start with last addr hint */
+        vma = find_vma(mm, last_addr);
+        if (last_addr && vma) {
+                vma = vma->vm_next;
+                goto out;
+        }
+
+        /*
+         * Check the vma index is within the range and do
+         * sequential scan until m_index.
+         */
+        vma = NULL;
+        if ((unsigned long)l < mm->map_count) {
+                vma = mm->mmap;
+                while (l-- && vma)
+                        vma = vma->vm_next;
+                goto out;
+        }
+
+        if (l != mm->map_count)
+                tail_vma = NULL; /* After gate vma */
+
+out:
+        if (vma)
+                return vma;
+
+        /* End of vmas has been reached */
+        m->version = (tail_vma != NULL)? 0: -1UL;
+        up_read(&mm->mmap_sem);
+        mmput(mm);
+        return tail_vma;
+}
+
+static void *m_next(struct seq_file *m, void *v, loff_t *pos)
+{
+        struct proc_maps_private *priv = m->private;
+        struct vm_area_struct *vma = v;
+        struct vm_area_struct *tail_vma = priv->tail_vma;
+
+        (*pos)++;
+        if (vma && (vma != tail_vma) && vma->vm_next)
+                return vma->vm_next;
+        vma_stop(priv, vma);
+        return (vma != tail_vma)? tail_vma: NULL;
+}
 
-static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats *mss)
+static void m_stop(struct seq_file *m, void *v)
+{
+        struct proc_maps_private *priv = m->private;
+        struct vm_area_struct *vma = v;
+
+        vma_stop(priv, vma);
+        if (priv->task)
+                put_task_struct(priv->task);
+}
+
+static int do_maps_open(struct inode *inode, struct file *file,
+                        const struct seq_operations *ops)
+{
+        struct proc_maps_private *priv;
+        int ret = -ENOMEM;
+        priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+        if (priv) {
+                priv->pid = proc_pid(inode);
+                ret = seq_open(file, ops);
+                if (!ret) {
+                        struct seq_file *m = file->private_data;
+                        m->private = priv;
+                } else {
+                        kfree(priv);
+                }
+        }
+        return ret;
+}
+
+static int show_map(struct seq_file *m, void *v)
 {
         struct proc_maps_private *priv = m->private;
         struct task_struct *task = priv->task;
@@ -168,7 +271,7 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats
          */
         if (file) {
                 pad_len_spaces(m, len);
-                seq_path(m, file->f_path.mnt, file->f_path.dentry, "\n");
+                seq_path(m, &file->f_path, "\n");
         } else {
                 const char *name = arch_vma_name(vma);
                 if (!name) {
@@ -191,41 +294,71 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats
         }
         seq_putc(m, '\n');
 
-        if (mss)
-                seq_printf(m,
-                           "Size:           %8lu kB\n"
-                           "Rss:            %8lu kB\n"
-                           "Shared_Clean:   %8lu kB\n"
-                           "Shared_Dirty:   %8lu kB\n"
-                           "Private_Clean:  %8lu kB\n"
-                           "Private_Dirty:  %8lu kB\n"
-                           "Referenced:     %8lu kB\n",
-                           (vma->vm_end - vma->vm_start) >> 10,
-                           mss->resident >> 10,
-                           mss->shared_clean  >> 10,
-                           mss->shared_dirty  >> 10,
-                           mss->private_clean >> 10,
-                           mss->private_dirty >> 10,
-                           mss->referenced >> 10);
-
         if (m->count < m->size)  /* vma is copied successfully */
                 m->version = (vma != get_gate_vma(task))? vma->vm_start: 0;
         return 0;
 }
 
-static int show_map(struct seq_file *m, void *v)
+static const struct seq_operations proc_pid_maps_op = {
+        .start  = m_start,
+        .next   = m_next,
+        .stop   = m_stop,
+        .show   = show_map
+};
+
+static int maps_open(struct inode *inode, struct file *file)
 {
-        return show_map_internal(m, v, NULL);
+        return do_maps_open(inode, file, &proc_pid_maps_op);
 }
 
-static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
-                            unsigned long addr, unsigned long end,
-                            void *private)
+const struct file_operations proc_maps_operations = {
+        .open           = maps_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = seq_release_private,
+};
+
+/*
+ * Proportional Set Size(PSS): my share of RSS.
+ *
+ * PSS of a process is the count of pages it has in memory, where each
+ * page is divided by the number of processes sharing it.  So if a
+ * process has 1000 pages all to itself, and 1000 shared with one other
+ * process, its PSS will be 1500.
+ *
+ * To keep (accumulated) division errors low, we adopt a 64bit
+ * fixed-point pss counter to minimize division errors. So (pss >>
+ * PSS_SHIFT) would be the real byte count.
+ *
+ * A shift of 12 before division means (assuming 4K page size):
+ *      - 1M 3-user-pages add up to 8KB errors;
+ *      - supports mapcount up to 2^24, or 16M;
+ *      - supports PSS up to 2^52 bytes, or 4PB.
+ */
+#define PSS_SHIFT 12
+
+#ifdef CONFIG_PROC_PAGE_MONITOR
+struct mem_size_stats
+{
+        struct vm_area_struct *vma;
+        unsigned long resident;
+        unsigned long shared_clean;
+        unsigned long shared_dirty;
+        unsigned long private_clean;
+        unsigned long private_dirty;
+        unsigned long referenced;
+        u64 pss;
+};
+
+static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
+                           void *private)
 {
         struct mem_size_stats *mss = private;
+        struct vm_area_struct *vma = mss->vma;
         pte_t *pte, ptent;
         spinlock_t *ptl;
         struct page *page;
+        int mapcount;
 
         pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
         for (; addr != end; pte++, addr += PAGE_SIZE) {
@@ -242,26 +375,88 @@ static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
                 /* Accumulate the size in pages that have been accessed. */
                 if (pte_young(ptent) || PageReferenced(page))
                         mss->referenced += PAGE_SIZE;
-                if (page_mapcount(page) >= 2) {
+                mapcount = page_mapcount(page);
+                if (mapcount >= 2) {
                         if (pte_dirty(ptent))
                                 mss->shared_dirty += PAGE_SIZE;
                         else
                                 mss->shared_clean += PAGE_SIZE;
+                        mss->pss += (PAGE_SIZE << PSS_SHIFT) / mapcount;
                 } else {
                         if (pte_dirty(ptent))
                                 mss->private_dirty += PAGE_SIZE;
                         else
                                 mss->private_clean += PAGE_SIZE;
+                        mss->pss += (PAGE_SIZE << PSS_SHIFT);
                 }
         }
         pte_unmap_unlock(pte - 1, ptl);
         cond_resched();
+        return 0;
+}
+
+static struct mm_walk smaps_walk = { .pmd_entry = smaps_pte_range };
+
+static int show_smap(struct seq_file *m, void *v)
+{
+        struct vm_area_struct *vma = v;
+        struct mem_size_stats mss;
+        int ret;
+
+        memset(&mss, 0, sizeof mss);
+        mss.vma = vma;
+        if (vma->vm_mm && !is_vm_hugetlb_page(vma))
+                walk_page_range(vma->vm_mm, vma->vm_start, vma->vm_end,
+                                &smaps_walk, &mss);
+
+        ret = show_map(m, v);
+        if (ret)
+                return ret;
+
+        seq_printf(m,
+                   "Size:           %8lu kB\n"
+                   "Rss:            %8lu kB\n"
+                   "Pss:            %8lu kB\n"
+                   "Shared_Clean:   %8lu kB\n"
+                   "Shared_Dirty:   %8lu kB\n"
+                   "Private_Clean:  %8lu kB\n"
+                   "Private_Dirty:  %8lu kB\n"
+                   "Referenced:     %8lu kB\n",
+                   (vma->vm_end - vma->vm_start) >> 10,
+                   mss.resident >> 10,
+                   (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
+                   mss.shared_clean  >> 10,
+                   mss.shared_dirty  >> 10,
+                   mss.private_clean >> 10,
+                   mss.private_dirty >> 10,
+                   mss.referenced >> 10);
+
+        return ret;
+}
+
+static const struct seq_operations proc_pid_smaps_op = {
+        .start  = m_start,
+        .next   = m_next,
+        .stop   = m_stop,
+        .show   = show_smap
+};
+
+static int smaps_open(struct inode *inode, struct file *file)
+{
+        return do_maps_open(inode, file, &proc_pid_smaps_op);
 }
 
-static void clear_refs_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
-                                 unsigned long addr, unsigned long end,
-                                 void *private)
+const struct file_operations proc_smaps_operations = {
+        .open           = smaps_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = seq_release_private,
+};
+
+static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr,
+                                unsigned long end, void *private)
 {
+        struct vm_area_struct *vma = private;
         pte_t *pte, ptent;
         spinlock_t *ptl;
         struct page *page;
@@ -282,235 +477,248 @@ static void clear_refs_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
         }
         pte_unmap_unlock(pte - 1, ptl);
         cond_resched();
+        return 0;
 }
 
-static inline void walk_pmd_range(struct pmd_walker *walker, pud_t *pud,
-                                  unsigned long addr, unsigned long end)
+static struct mm_walk clear_refs_walk = { .pmd_entry = clear_refs_pte_range };
+
+static ssize_t clear_refs_write(struct file *file, const char __user *buf,
+                                size_t count, loff_t *ppos)
 {
-        pmd_t *pmd;
-        unsigned long next;
+        struct task_struct *task;
+        char buffer[PROC_NUMBUF], *end;
+        struct mm_struct *mm;
+        struct vm_area_struct *vma;
 
-        for (pmd = pmd_offset(pud, addr); addr != end;
-             pmd++, addr = next) {
-                next = pmd_addr_end(addr, end);
-                if (pmd_none_or_clear_bad(pmd))
-                        continue;
-                walker->action(walker->vma, pmd, addr, next, walker->private);
+        memset(buffer, 0, sizeof(buffer));
+        if (count > sizeof(buffer) - 1)
+                count = sizeof(buffer) - 1;
+        if (copy_from_user(buffer, buf, count))
+                return -EFAULT;
+        if (!simple_strtol(buffer, &end, 0))
+                return -EINVAL;
+        if (*end == '\n')
+                end++;
+        task = get_proc_task(file->f_path.dentry->d_inode);
+        if (!task)
+                return -ESRCH;
+        mm = get_task_mm(task);
+        if (mm) {
+                down_read(&mm->mmap_sem);
+                for (vma = mm->mmap; vma; vma = vma->vm_next)
+                        if (!is_vm_hugetlb_page(vma))
+                                walk_page_range(mm, vma->vm_start, vma->vm_end,
+                                                &clear_refs_walk, vma);
+                flush_tlb_mm(mm);
+                up_read(&mm->mmap_sem);
+                mmput(mm);
         }
+        put_task_struct(task);
+        if (end - buffer == 0)
+                return -EIO;
+        return end - buffer;
 }
 
-static inline void walk_pud_range(struct pmd_walker *walker, pgd_t *pgd,
-                                  unsigned long addr, unsigned long end)
-{
-        pud_t *pud;
-        unsigned long next;
+const struct file_operations proc_clear_refs_operations = {
+        .write          = clear_refs_write,
+};
 
-        for (pud = pud_offset(pgd, addr); addr != end;
-             pud++, addr = next) {
-                next = pud_addr_end(addr, end);
-                if (pud_none_or_clear_bad(pud))
-                        continue;
-                walk_pmd_range(walker, pud, addr, next);
+struct pagemapread {
+        char __user *out, *end;
+};
+
+#define PM_ENTRY_BYTES sizeof(u64)
+#define PM_RESERVED_BITS    3
+#define PM_RESERVED_OFFSET  (64 - PM_RESERVED_BITS)
+#define PM_RESERVED_MASK    (((1LL<<PM_RESERVED_BITS)-1) << PM_RESERVED_OFFSET)
+#define PM_SPECIAL(nr)      (((nr) << PM_RESERVED_OFFSET) | PM_RESERVED_MASK)
+#define PM_NOT_PRESENT      PM_SPECIAL(1LL)
+#define PM_SWAP             PM_SPECIAL(2LL)
+#define PM_END_OF_BUFFER    1
+
+static int add_to_pagemap(unsigned long addr, u64 pfn,
+                          struct pagemapread *pm)
+{
+        /*
+         * Make sure there's room in the buffer for an
+         * entire entry.  Otherwise, only copy part of
+         * the pfn.
+         */
+        if (pm->out + PM_ENTRY_BYTES >= pm->end) {
+                if (copy_to_user(pm->out, &pfn, pm->end - pm->out))
+                        return -EFAULT;
+                pm->out = pm->end;
+                return PM_END_OF_BUFFER;
         }
+
+        if (put_user(pfn, pm->out))
+                return -EFAULT;
+        pm->out += PM_ENTRY_BYTES;
+        return 0;
 }
 
-/*
- * walk_page_range - walk the page tables of a VMA with a callback
- * @vma - VMA to walk
- * @action - callback invoked for every bottom-level (PTE) page table
- * @private - private data passed to the callback function
- *
- * Recursively walk the page table for the memory area in a VMA, calling
- * a callback for every bottom-level (PTE) page table.
- */
-static inline void walk_page_range(struct vm_area_struct *vma,
-                                   void (*action)(struct vm_area_struct *,
-                                                  pmd_t *, unsigned long,
-                                                  unsigned long, void *),
-                                   void *private)
+static int pagemap_pte_hole(unsigned long start, unsigned long end,
+                                void *private)
 {
-        unsigned long addr = vma->vm_start;
-        unsigned long end = vma->vm_end;
-        struct pmd_walker walker = {
-                .vma            = vma,
-                .private        = private,
-                .action         = action,
-        };
-        pgd_t *pgd;
-        unsigned long next;
-
-        for (pgd = pgd_offset(vma->vm_mm, addr); addr != end;
-             pgd++, addr = next) {
-                next = pgd_addr_end(addr, end);
-                if (pgd_none_or_clear_bad(pgd))
-                        continue;
-                walk_pud_range(&walker, pgd, addr, next);
+        struct pagemapread *pm = private;
+        unsigned long addr;
+        int err = 0;
+        for (addr = start; addr < end; addr += PAGE_SIZE) {
+                err = add_to_pagemap(addr, PM_NOT_PRESENT, pm);
+                if (err)
+                        break;
         }
+        return err;
 }
 
-static int show_smap(struct seq_file *m, void *v)
+u64 swap_pte_to_pagemap_entry(pte_t pte)
 {
-        struct vm_area_struct *vma = v;
-        struct mem_size_stats mss;
-
-        memset(&mss, 0, sizeof mss);
-        if (vma->vm_mm && !is_vm_hugetlb_page(vma))
-                walk_page_range(vma, smaps_pte_range, &mss);
-        return show_map_internal(m, v, &mss);
+        swp_entry_t e = pte_to_swp_entry(pte);
+        return PM_SWAP | swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT);
 }
 
-void clear_refs_smap(struct mm_struct *mm)
+static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
+                             void *private)
 {
-        struct vm_area_struct *vma;
+        struct pagemapread *pm = private;
+        pte_t *pte;
+        int err = 0;
+
+        for (; addr != end; addr += PAGE_SIZE) {
+                u64 pfn = PM_NOT_PRESENT;
+                pte = pte_offset_map(pmd, addr);
+                if (is_swap_pte(*pte))
+                        pfn = swap_pte_to_pagemap_entry(*pte);
+                else if (pte_present(*pte))
+                        pfn = pte_pfn(*pte);
+                /* unmap so we're not in atomic when we copy to userspace */
+                pte_unmap(pte);
+                err = add_to_pagemap(addr, pfn, pm);
+                if (err)
+                        return err;
+        }
 
-        down_read(&mm->mmap_sem);
-        for (vma = mm->mmap; vma; vma = vma->vm_next)
-                if (vma->vm_mm && !is_vm_hugetlb_page(vma))
-                        walk_page_range(vma, clear_refs_pte_range, NULL);
-        flush_tlb_mm(mm);
-        up_read(&mm->mmap_sem);
+        cond_resched();
+
+        return err;
 }
 
-static void *m_start(struct seq_file *m, loff_t *pos)
+static struct mm_walk pagemap_walk = {
+        .pmd_entry = pagemap_pte_range,
+        .pte_hole = pagemap_pte_hole
+};
+
+/*
+ * /proc/pid/pagemap - an array mapping virtual pages to pfns
+ *
+ * For each page in the address space, this file contains one 64-bit
+ * entry representing the corresponding physical page frame number
+ * (PFN) if the page is present. If there is a swap entry for the
+ * physical page, then an encoding of the swap file number and the
+ * page's offset into the swap file are returned. If no page is
+ * present at all, PM_NOT_PRESENT is returned. This allows determining
+ * precisely which pages are mapped (or in swap) and comparing mapped
+ * pages between processes.
+ *
+ * Efficient users of this interface will use /proc/pid/maps to
+ * determine which areas of memory are actually mapped and llseek to
+ * skip over unmapped regions.
+ */
+static ssize_t pagemap_read(struct file *file, char __user *buf,
+                            size_t count, loff_t *ppos)
 {
-        struct proc_maps_private *priv = m->private;
-        unsigned long last_addr = m->version;
+        struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
+        struct page **pages, *page;
+        unsigned long uaddr, uend;
         struct mm_struct *mm;
-        struct vm_area_struct *vma, *tail_vma = NULL;
-        loff_t l = *pos;
-
-        /* Clear the per syscall fields in priv */
-        priv->task = NULL;
-        priv->tail_vma = NULL;
+        struct pagemapread pm;
+        int pagecount;
+        int ret = -ESRCH;
 
-        /*
-         * We remember last_addr rather than next_addr to hit with
-         * mmap_cache most of the time. We have zero last_addr at
-         * the beginning and also after lseek. We will have -1 last_addr
-         * after the end of the vmas.
-         */
+        if (!task)
+                goto out;
 
-        if (last_addr == -1UL)
-                return NULL;
+        ret = -EACCES;
+        if (!ptrace_may_attach(task))
+                goto out;
 
-        priv->task = get_pid_task(priv->pid, PIDTYPE_PID);
-        if (!priv->task)
-                return NULL;
+        ret = -EINVAL;
+        /* file position must be aligned */
+        if (*ppos % PM_ENTRY_BYTES)
+                goto out;
 
-        mm = mm_for_maps(priv->task);
+        ret = 0;
+        mm = get_task_mm(task);
         if (!mm)
-                return NULL;
-
-        priv->tail_vma = tail_vma = get_gate_vma(priv->task);
-
-        /* Start with last addr hint */
-        if (last_addr && (vma = find_vma(mm, last_addr))) {
-                vma = vma->vm_next;
                 goto out;
-        }
 
-        /*
-         * Check the vma index is within the range and do
-         * sequential scan until m_index.
-         */
-        vma = NULL;
-        if ((unsigned long)l < mm->map_count) {
-                vma = mm->mmap;
-                while (l-- && vma)
-                        vma = vma->vm_next;
-                goto out;
-        }
+        ret = -ENOMEM;
+        uaddr = (unsigned long)buf & PAGE_MASK;
+        uend = (unsigned long)(buf + count);
+        pagecount = (PAGE_ALIGN(uend) - uaddr) / PAGE_SIZE;
+        pages = kmalloc(pagecount * sizeof(struct page *), GFP_KERNEL);
+        if (!pages)
+                goto out_task;
 
-        if (l != mm->map_count)
-                tail_vma = NULL; /* After gate vma */
+        down_read(&current->mm->mmap_sem);
+        ret = get_user_pages(current, current->mm, uaddr, pagecount,
+                             1, 0, pages, NULL);
+        up_read(&current->mm->mmap_sem);
 
-out:
-        if (vma)
-                return vma;
+        if (ret < 0)
+                goto out_free;
 
-        /* End of vmas has been reached */
-        m->version = (tail_vma != NULL)? 0: -1UL;
-        up_read(&mm->mmap_sem);
-        mmput(mm);
-        return tail_vma;
-}
+        pm.out = buf;
+        pm.end = buf + count;
 
-static void vma_stop(struct proc_maps_private *priv, struct vm_area_struct *vma)
-{
-        if (vma && vma != priv->tail_vma) {
-                struct mm_struct *mm = vma->vm_mm;
-                up_read(&mm->mmap_sem);
-                mmput(mm);
+        if (!ptrace_may_attach(task)) {
+                ret = -EIO;
+        } else {
+                unsigned long src = *ppos;
+                unsigned long svpfn = src / PM_ENTRY_BYTES;
+                unsigned long start_vaddr = svpfn << PAGE_SHIFT;
+                unsigned long end_vaddr = TASK_SIZE_OF(task);
+
+                /* watch out for wraparound */
+                if (svpfn > TASK_SIZE_OF(task) >> PAGE_SHIFT)
+                        start_vaddr = end_vaddr;
+
+                /*
+                 * The odds are that this will stop walking way
+                 * before end_vaddr, because the length of the
+                 * user buffer is tracked in "pm", and the walk
+                 * will stop when we hit the end of the buffer.
+                 */
+                ret = walk_page_range(mm, start_vaddr, end_vaddr,
+                                        &pagemap_walk, &pm);
+                if (ret == PM_END_OF_BUFFER)
+                        ret = 0;
+                /* don't need mmap_sem for these, but this looks cleaner */
+                *ppos += pm.out - buf;
+                if (!ret)
+                        ret = pm.out - buf;
         }
-}
-
-static void *m_next(struct seq_file *m, void *v, loff_t *pos)
-{
-        struct proc_maps_private *priv = m->private;
-        struct vm_area_struct *vma = v;
-        struct vm_area_struct *tail_vma = priv->tail_vma;
-
-        (*pos)++;
-        if (vma && (vma != tail_vma) && vma->vm_next)
-                return vma->vm_next;
-        vma_stop(priv, vma);
-        return (vma != tail_vma)? tail_vma: NULL;
-}
-
-static void m_stop(struct seq_file *m, void *v)
-{
-        struct proc_maps_private *priv = m->private;
-        struct vm_area_struct *vma = v;
-
-        vma_stop(priv, vma);
-        if (priv->task)
-                put_task_struct(priv->task);
-}
-
-static struct seq_operations proc_pid_maps_op = {
-        .start  = m_start,
-        .next   = m_next,
-        .stop   = m_stop,
-        .show   = show_map
-};
-
-static struct seq_operations proc_pid_smaps_op = {
-        .start  = m_start,
-        .next   = m_next,
-        .stop   = m_stop,
-        .show   = show_smap
-};
 
-static int do_maps_open(struct inode *inode, struct file *file,
-                        struct seq_operations *ops)
-{
-        struct proc_maps_private *priv;
-        int ret = -ENOMEM;
-        priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-        if (priv) {
-                priv->pid = proc_pid(inode);
-                ret = seq_open(file, ops);
-                if (!ret) {
-                        struct seq_file *m = file->private_data;
-                        m->private = priv;
-                } else {
-                        kfree(priv);
-                }
+        for (; pagecount; pagecount--) {
+                page = pages[pagecount-1];
+                if (!PageReserved(page))
+                        SetPageDirty(page);
+                page_cache_release(page);
         }
+        mmput(mm);
+out_free:
+        kfree(pages);
+out_task:
+        put_task_struct(task);
+out:
         return ret;
 }
 
-static int maps_open(struct inode *inode, struct file *file)
-{
-        return do_maps_open(inode, file, &proc_pid_maps_op);
-}
-
-const struct file_operations proc_maps_operations = {
-        .open           = maps_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = seq_release_private,
+const struct file_operations proc_pagemap_operations = {
+        .llseek         = mem_lseek, /* borrow this */
+        .read           = pagemap_read,
 };
+#endif /* CONFIG_PROC_PAGE_MONITOR */
 
 #ifdef CONFIG_NUMA
 extern int show_numa_map(struct seq_file *m, void *v);
@@ -526,7 +734,7 @@ static int show_numa_map_checked(struct seq_file *m, void *v)
         return show_numa_map(m, v);
 }
 
-static struct seq_operations proc_pid_numa_maps_op = {
+static const struct seq_operations proc_pid_numa_maps_op = {
         .start  = m_start,
         .next   = m_next,
         .stop   = m_stop,
@@ -545,15 +753,3 @@ const struct file_operations proc_numa_maps_operations = {
         .release        = seq_release_private,
 };
 #endif
-
-static int smaps_open(struct inode *inode, struct file *file)
-{
-        return do_maps_open(inode, file, &proc_pid_smaps_op);
-}
-
-const struct file_operations proc_smaps_operations = {
-        .open           = smaps_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = seq_release_private,
-};
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 1932c2ca3457..8011528518bd 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -12,7 +12,7 @@
  * each process that owns it. Non-shared memory is counted
  * accurately.
  */
-char *task_mem(struct mm_struct *mm, char *buffer)
+void task_mem(struct seq_file *m, struct mm_struct *mm)
 {
         struct vm_list_struct *vml;
         unsigned long bytes = 0, sbytes = 0, slack = 0;
@@ -58,14 +58,13 @@ char *task_mem(struct mm_struct *mm, char *buffer)
 
         bytes += kobjsize(current); /* includes kernel stack */
 
-        buffer += sprintf(buffer,
+        seq_printf(m,
                 "Mem:\t%8lu bytes\n"
                 "Slack:\t%8lu bytes\n"
                 "Shared:\t%8lu bytes\n",
                 bytes, slack, sbytes);
 
         up_read(&mm->mmap_sem);
-        return buffer;
 }
 
 unsigned long task_vsize(struct mm_struct *mm)
@@ -104,7 +103,7 @@ int task_statm(struct mm_struct *mm, int *shared, int *text,
         return size;
 }
 
-int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+int proc_exe_link(struct inode *inode, struct path *path)
 {
         struct vm_list_struct *vml;
         struct vm_area_struct *vma;
@@ -127,8 +126,8 @@ int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount *
         }
 
         if (vma) {
-                *mnt = mntget(vma->vm_file->f_path.mnt);
-                *dentry = dget(vma->vm_file->f_path.dentry);
+                *path = vma->vm_file->f_path;
+                path_get(&vma->vm_file->f_path);
                 result = 0;
         }
 
@@ -199,7 +198,7 @@ static void *m_next(struct seq_file *m, void *_vml, loff_t *pos)
         return vml ? vml->next : NULL;
 }
 
-static struct seq_operations proc_pid_maps_ops = {
+static const struct seq_operations proc_pid_maps_ops = {
         .start  = m_start,
         .next   = m_next,
         .stop   = m_stop,
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 523e1098ae88..9ac0f5e064e0 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -10,7 +10,6 @@
 #include <linux/mm.h>
 #include <linux/proc_fs.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/elf.h>
 #include <linux/elfcore.h>
 #include <linux/highmem.h>
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 638bdb963213..b31ab78052b3 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -125,7 +125,6 @@ static int qnx4_write_inode(struct inode *inode, int unused)
 static void qnx4_put_super(struct super_block *sb);
 static struct inode *qnx4_alloc_inode(struct super_block *sb);
 static void qnx4_destroy_inode(struct inode *inode);
-static void qnx4_read_inode(struct inode *);
 static int qnx4_remount(struct super_block *sb, int *flags, char *data);
 static int qnx4_statfs(struct dentry *, struct kstatfs *);
 
@@ -133,7 +132,6 @@ static const struct super_operations qnx4_sops =
 {
         .alloc_inode    = qnx4_alloc_inode,
         .destroy_inode  = qnx4_destroy_inode,
-        .read_inode     = qnx4_read_inode,
         .put_super      = qnx4_put_super,
         .statfs         = qnx4_statfs,
         .remount_fs     = qnx4_remount,
@@ -357,6 +355,7 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
         struct inode *root;
         const char *errmsg;
         struct qnx4_sb_info *qs;
+        int ret = -EINVAL;
 
         qs = kzalloc(sizeof(struct qnx4_sb_info), GFP_KERNEL);
         if (!qs)
@@ -396,12 +395,14 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
         }
 
         /* does root not have inode number QNX4_ROOT_INO ?? */
-        root = iget(s, QNX4_ROOT_INO * QNX4_INODES_PER_BLOCK);
-        if (!root) {
+        root = qnx4_iget(s, QNX4_ROOT_INO * QNX4_INODES_PER_BLOCK);
+        if (IS_ERR(root)) {
                 printk("qnx4: get inode failed\n");
+                ret = PTR_ERR(root);
                 goto out;
         }
 
+        ret = -ENOMEM;
         s->s_root = d_alloc_root(root);
         if (s->s_root == NULL)
                 goto outi;
@@ -417,7 +418,7 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
       outnobh:
         kfree(qs);
         s->s_fs_info = NULL;
-        return -EINVAL;
+        return ret;
 }
 
 static void qnx4_put_super(struct super_block *sb)
@@ -462,29 +463,38 @@ static const struct address_space_operations qnx4_aops = {
         .bmap           = qnx4_bmap
 };
 
-static void qnx4_read_inode(struct inode *inode)
+struct inode *qnx4_iget(struct super_block *sb, unsigned long ino)
 {
         struct buffer_head *bh;
         struct qnx4_inode_entry *raw_inode;
-        int block, ino;
-        struct super_block *sb = inode->i_sb;
-        struct qnx4_inode_entry *qnx4_inode = qnx4_raw_inode(inode);
+        int block;
+        struct qnx4_inode_entry *qnx4_inode;
+        struct inode *inode;
 
-        ino = inode->i_ino;
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        qnx4_inode = qnx4_raw_inode(inode);
         inode->i_mode = 0;
 
         QNX4DEBUG(("Reading inode : [%d]\n", ino));
         if (!ino) {
-                printk("qnx4: bad inode number on dev %s: %d is out of range\n",
+                printk(KERN_ERR "qnx4: bad inode number on dev %s: %lu is "
+                                "out of range\n",
                        sb->s_id, ino);
-                return;
+                iget_failed(inode);
+                return ERR_PTR(-EIO);
         }
         block = ino / QNX4_INODES_PER_BLOCK;
 
         if (!(bh = sb_bread(sb, block))) {
                 printk("qnx4: major problem: unable to read inode from dev "
                        "%s\n", sb->s_id);
-                return;
+                iget_failed(inode);
+                return ERR_PTR(-EIO);
         }
         raw_inode = ((struct qnx4_inode_entry *) bh->b_data) +
             (ino % QNX4_INODES_PER_BLOCK);
@@ -515,9 +525,16 @@ static void qnx4_read_inode(struct inode *inode)
                 inode->i_op = &page_symlink_inode_operations;
                 inode->i_mapping->a_ops = &qnx4_aops;
                 qnx4_i(inode)->mmu_private = inode->i_size;
-        } else
-                printk("qnx4: bad inode %d on dev %s\n",ino,sb->s_id);
+        } else {
+                printk(KERN_ERR "qnx4: bad inode %lu on dev %s\n",
+                        ino, sb->s_id);
+                iget_failed(inode);
+                brelse(bh);
+                return ERR_PTR(-EIO);
+        }
         brelse(bh);
+        unlock_new_inode(inode);
+        return inode;
 }
 
 static struct kmem_cache *qnx4_inode_cachep;
diff --git a/fs/qnx4/namei.c b/fs/qnx4/namei.c
index 733cdf01d645..775eed3a4085 100644
--- a/fs/qnx4/namei.c
+++ b/fs/qnx4/namei.c
@@ -128,10 +128,12 @@ struct dentry * qnx4_lookup(struct inode *dir, struct dentry *dentry, struct nam
         }
         brelse(bh);
 
-        if ((foundinode = iget(dir->i_sb, ino)) == NULL) {
+        foundinode = qnx4_iget(dir->i_sb, ino);
+        if (IS_ERR(foundinode)) {
                 unlock_kernel();
-                QNX4DEBUG(("qnx4: lookup->iget -> NULL\n"));
-                return ERR_PTR(-EACCES);
+                QNX4DEBUG(("qnx4: lookup->iget -> error %ld\n",
+                           PTR_ERR(foundinode)));
+                return ERR_CAST(foundinode);
         }
 out:
         unlock_kernel();
diff --git a/fs/quota.c b/fs/quota.c
index 99b24b52bfc8..84f28dd72116 100644
--- a/fs/quota.c
+++ b/fs/quota.c
@@ -341,11 +341,11 @@ static inline struct super_block *quotactl_block(const char __user *special)
         char *tmp = getname(special);
 
         if (IS_ERR(tmp))
-                return ERR_PTR(PTR_ERR(tmp));
+                return ERR_CAST(tmp);
         bdev = lookup_bdev(tmp);
         putname(tmp);
         if (IS_ERR(bdev))
-                return ERR_PTR(PTR_ERR(bdev));
+                return ERR_CAST(bdev);
         sb = get_super(bdev);
         bdput(bdev);
         if (!sb)
diff --git a/fs/read_write.c b/fs/read_write.c
index 1c177f29e1b7..49a98718ecdf 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -366,7 +366,6 @@ asmlinkage ssize_t sys_read(unsigned int fd, char __user * buf, size_t count)
 
         return ret;
 }
-EXPORT_UNUSED_SYMBOL_GPL(sys_read); /* to be deleted for 2.6.25 */
 
 asmlinkage ssize_t sys_write(unsigned int fd, const char __user * buf, size_t count)
 {
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 231fd5ccadc5..57917932212e 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1536,7 +1536,7 @@ static struct dentry *reiserfs_get_dentry(struct super_block *sb,
         if (!inode)
                 inode = ERR_PTR(-ESTALE);
         if (IS_ERR(inode))
-                return ERR_PTR(PTR_ERR(inode));
+                return ERR_CAST(inode);
         result = d_alloc_anon(inode);
         if (!result) {
                 iput(inode);
@@ -2143,7 +2143,7 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
                 /* if we are not on a block boundary */
                 if (length) {
                         length = blocksize - length;
-                        zero_user_page(page, offset, length, KM_USER0);
+                        zero_user(page, offset, length);
                         if (buffer_mapped(bh) && bh->b_blocknr != 0) {
                                 mark_buffer_dirty(bh);
                         }
@@ -2367,7 +2367,7 @@ static int reiserfs_write_full_page(struct page *page,
                         unlock_page(page);
                         return 0;
                 }
-                zero_user_page(page, last_offset, PAGE_CACHE_SIZE - last_offset, KM_USER0);
+                zero_user_segment(page, last_offset, PAGE_CACHE_SIZE);
         }
         bh = head;
         block = page->index << (PAGE_CACHE_SHIFT - s->s_blocksize_bits);
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 5e7388b32d02..740bb8c0c1ae 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -575,6 +575,8 @@ void print_block(struct buffer_head *bh, ...)	//int print_mode, int first, int l
                                         printk
                                             ("Block %llu contains unformatted data\n",
                                              (unsigned long long)bh->b_blocknr);
+
+        va_end(args);
 }
 
 static char print_tb_buf[2048];
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index 001144621672..8f86c52b30d8 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -444,7 +444,7 @@ static int r_show(struct seq_file *m, void *v)
         return show(m, v);
 }
 
-static struct seq_operations r_ops = {
+static const struct seq_operations r_ops = {
         .start = r_start,
         .next = r_next,
         .stop = r_stop,
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 5cd85fe5df5d..6841452e0dea 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -617,6 +617,7 @@ static const struct super_operations reiserfs_sops = {
         .unlockfs = reiserfs_unlockfs,
         .statfs = reiserfs_statfs,
         .remount_fs = reiserfs_remount,
+        .show_options = generic_show_options,
 #ifdef CONFIG_QUOTA
         .quota_read = reiserfs_quota_read,
         .quota_write = reiserfs_quota_write,
@@ -1138,6 +1139,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
         unsigned long safe_mask = 0;
         unsigned int commit_max_age = (unsigned int)-1;
         struct reiserfs_journal *journal = SB_JOURNAL(s);
+        char *new_opts = kstrdup(arg, GFP_KERNEL);
         int err;
 #ifdef CONFIG_QUOTA
         int i;
@@ -1153,7 +1155,8 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
                         REISERFS_SB(s)->s_qf_names[i] = NULL;
                 }
 #endif
-                return -EINVAL;
+                err = -EINVAL;
+                goto out_err;
         }
 
         handle_attrs(s);
@@ -1191,9 +1194,9 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
         }
 
         if (blocks) {
-                int rc = reiserfs_resize(s, blocks);
-                if (rc != 0)
-                        return rc;
+                err = reiserfs_resize(s, blocks);
+                if (err != 0)
+                        goto out_err;
         }
 
         if (*mount_flags & MS_RDONLY) {
@@ -1201,16 +1204,16 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
                 /* remount read-only */
                 if (s->s_flags & MS_RDONLY)
                         /* it is read-only already */
-                        return 0;
+                        goto out_ok;
                 /* try to remount file system with read-only permissions */
                 if (sb_umount_state(rs) == REISERFS_VALID_FS
                     || REISERFS_SB(s)->s_mount_state != REISERFS_VALID_FS) {
-                        return 0;
+                        goto out_ok;
                 }
 
                 err = journal_begin(&th, s, 10);
                 if (err)
-                        return err;
+                        goto out_err;
 
                 /* Mounting a rw partition read-only. */
                 reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
@@ -1220,11 +1223,13 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
                 /* remount read-write */
                 if (!(s->s_flags & MS_RDONLY)) {
                         reiserfs_xattr_init(s, *mount_flags);
-                        return 0;       /* We are read-write already */
+                        goto out_ok;    /* We are read-write already */
                 }
 
-                if (reiserfs_is_journal_aborted(journal))
-                        return journal->j_errno;
+                if (reiserfs_is_journal_aborted(journal)) {
+                        err = journal->j_errno;
+                        goto out_err;
+                }
 
                 handle_data_mode(s, mount_options);
                 handle_barrier_mode(s, mount_options);
@@ -1232,7 +1237,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
                 s->s_flags &= ~MS_RDONLY;       /* now it is safe to call journal_begin */
                 err = journal_begin(&th, s, 10);
                 if (err)
-                        return err;
+                        goto out_err;
 
                 /* Mount a partition which is read-only, read-write */
                 reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
@@ -1247,7 +1252,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
         SB_JOURNAL(s)->j_must_wait = 1;
         err = journal_end(&th, s, 10);
         if (err)
-                return err;
+                goto out_err;
         s->s_dirt = 0;
 
         if (!(*mount_flags & MS_RDONLY)) {
@@ -1255,7 +1260,14 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
                 reiserfs_xattr_init(s, *mount_flags);
         }
 
+out_ok:
+        kfree(s->s_options);
+        s->s_options = new_opts;
         return 0;
+
+out_err:
+        kfree(new_opts);
+        return err;
 }
 
 static int read_super_block(struct super_block *s, int offset)
@@ -1559,6 +1571,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
         struct reiserfs_sb_info *sbi;
         int errval = -EINVAL;
 
+        save_mount_options(s, data);
+
         sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
         if (!sbi) {
                 errval = -ENOMEM;
@@ -2012,29 +2026,29 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
         if (err)
                 return err;
         /* Quotafile not on the same filesystem? */
-        if (nd.mnt->mnt_sb != sb) {
-                path_release(&nd);
+        if (nd.path.mnt->mnt_sb != sb) {
+                path_put(&nd.path);
                 return -EXDEV;
         }
         /* We must not pack tails for quota files on reiserfs for quota IO to work */
-        if (!REISERFS_I(nd.dentry->d_inode)->i_flags & i_nopack_mask) {
+        if (!REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask) {
                 reiserfs_warning(sb,
                                  "reiserfs: Quota file must have tail packing disabled.");
-                path_release(&nd);
+                path_put(&nd.path);
                 return -EINVAL;
         }
         /* Not journalling quota? No more tests needed... */
         if (!REISERFS_SB(sb)->s_qf_names[USRQUOTA] &&
             !REISERFS_SB(sb)->s_qf_names[GRPQUOTA]) {
-                path_release(&nd);
+                path_put(&nd.path);
                 return vfs_quota_on(sb, type, format_id, path);
         }
         /* Quotafile not of fs root? */
-        if (nd.dentry->d_parent->d_inode != sb->s_root->d_inode)
+        if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
                 reiserfs_warning(sb,
                                  "reiserfs: Quota file not on filesystem root. "
                                  "Journalled quota will not work.");
-        path_release(&nd);
+        path_put(&nd.path);
         return vfs_quota_on(sb, type, format_id, path);
 }
 
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 1597f6b649e0..eba037b3338f 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -155,7 +155,7 @@ static struct dentry *get_xa_file_dentry(const struct inode *inode,
 
         xadir = open_xa_dir(inode, flags);
         if (IS_ERR(xadir)) {
-                return ERR_PTR(PTR_ERR(xadir));
+                return ERR_CAST(xadir);
         } else if (xadir && !xadir->d_inode) {
                 dput(xadir);
                 return ERR_PTR(-ENODATA);
@@ -164,7 +164,7 @@ static struct dentry *get_xa_file_dentry(const struct inode *inode,
         xafile = lookup_one_len(name, xadir, strlen(name));
         if (IS_ERR(xafile)) {
                 dput(xadir);
-                return ERR_PTR(PTR_ERR(xafile));
+                return ERR_CAST(xafile);
         }
 
         if (xafile->d_inode) {  /* file exists */
@@ -1084,7 +1084,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 }
 
 /* This is the implementation for the xattr plugin infrastructure */
-static struct list_head xattr_handlers = LIST_HEAD_INIT(xattr_handlers);
+static LIST_HEAD(xattr_handlers);
 static DEFINE_RWLOCK(handler_lock);
 
 static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c
index a49cf5b9a195..00b6f0a518c8 100644
--- a/fs/romfs/inode.c
+++ b/fs/romfs/inode.c
@@ -84,6 +84,8 @@ struct romfs_inode_info {
         struct inode vfs_inode;
 };
 
+static struct inode *romfs_iget(struct super_block *, unsigned long);
+
 /* instead of private superblock data */
 static inline unsigned long romfs_maxsize(struct super_block *sb)
 {
@@ -117,7 +119,7 @@ static int romfs_fill_super(struct super_block *s, void *data, int silent)
         struct buffer_head *bh;
         struct romfs_super_block *rsb;
         struct inode *root;
-        int sz;
+        int sz, ret = -EINVAL;
 
         /* I would parse the options here, but there are none.. :) */
 
@@ -157,10 +159,13 @@ static int romfs_fill_super(struct super_block *s, void *data, int silent)
              & ROMFH_MASK;
 
         s->s_op = &romfs_ops;
-        root = iget(s, sz);
-        if (!root)
+        root = romfs_iget(s, sz);
+        if (IS_ERR(root)) {
+                ret = PTR_ERR(root);
                 goto out;
+        }
 
+        ret = -ENOMEM;
         s->s_root = d_alloc_root(root);
         if (!s->s_root)
                 goto outiput;
@@ -173,7 +178,7 @@ outiput:
 out:
         brelse(bh);
 outnobh:
-        return -EINVAL;
+        return ret;
 }
 
 /* That's simple too. */
@@ -389,8 +394,11 @@ romfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
         if ((be32_to_cpu(ri.next) & ROMFH_TYPE) == ROMFH_HRD)
                 offset = be32_to_cpu(ri.spec) & ROMFH_MASK;
 
-        if ((inode = iget(dir->i_sb, offset)))
-                goto outi;
+        inode = romfs_iget(dir->i_sb, offset);
+        if (IS_ERR(inode)) {
+                res = PTR_ERR(inode);
+                goto out;
+        }
 
         /*
          * it's a bit funky, _lookup needs to return an error code
@@ -402,7 +410,7 @@ romfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
          */
 
 out0:   inode = NULL;
-outi:   res = 0;
+        res = 0;
         d_add (dentry, inode);
 
 out:    unlock_kernel();
@@ -478,20 +486,29 @@ static mode_t romfs_modemap[] =
         S_IFBLK+0600, S_IFCHR+0600, S_IFSOCK+0644, S_IFIFO+0644
 };
 
-static void
-romfs_read_inode(struct inode *i)
+static struct inode *
+romfs_iget(struct super_block *sb, unsigned long ino)
 {
-        int nextfh, ino;
+        int nextfh;
         struct romfs_inode ri;
+        struct inode *i;
+
+        ino &= ROMFH_MASK;
+        i = iget_locked(sb, ino);
+        if (!i)
+                return ERR_PTR(-ENOMEM);
+        if (!(i->i_state & I_NEW))
+                return i;
 
-        ino = i->i_ino & ROMFH_MASK;
         i->i_mode = 0;
 
         /* Loop for finding the real hard link */
         for(;;) {
                 if (romfs_copyfrom(i, &ri, ino, ROMFH_SIZE) <= 0) {
-                        printk("romfs: read error for inode 0x%x\n", ino);
-                        return;
+                        printk(KERN_ERR "romfs: read error for inode 0x%lx\n",
+                                ino);
+                        iget_failed(i);
+                        return ERR_PTR(-EIO);
                 }
                 /* XXX: do romfs_checksum here too (with name) */
 
@@ -548,6 +565,8 @@ romfs_read_inode(struct inode *i)
                         init_special_inode(i, ino,
                                         MKDEV(nextfh>>16,nextfh&0xffff));
         }
+        unlock_new_inode(i);
+        return i;
 }
 
 static struct kmem_cache * romfs_inode_cachep;
@@ -599,7 +618,6 @@ static int romfs_remount(struct super_block *sb, int *flags, char *data)
 static const struct super_operations romfs_ops = {
         .alloc_inode    = romfs_alloc_inode,
         .destroy_inode  = romfs_destroy_inode,
-        .read_inode     = romfs_read_inode,
         .statfs         = romfs_statfs,
         .remount_fs     = romfs_remount,
 };
diff --git a/fs/select.c b/fs/select.c
index 47f47925aea2..5633fe980781 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -739,7 +739,7 @@ asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
                         timeout_jiffies = -1;
                 else
 #endif
-                        timeout_jiffies = msecs_to_jiffies(timeout_msecs);
+                        timeout_jiffies = msecs_to_jiffies(timeout_msecs) + 1;
         } else {
                 /* Infinite (< 0) or no (0) timeout */
                 timeout_jiffies = timeout_msecs;
diff --git a/fs/seq_file.c b/fs/seq_file.c
index ca71c115bdaa..853770274f20 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -342,13 +342,11 @@ int seq_printf(struct seq_file *m, const char *f, ...)
 }
 EXPORT_SYMBOL(seq_printf);
 
-int seq_path(struct seq_file *m,
-             struct vfsmount *mnt, struct dentry *dentry,
-             char *esc)
+int seq_path(struct seq_file *m, struct path *path, char *esc)
 {
         if (m->count < m->size) {
                 char *s = m->buf + m->count;
-                char *p = d_path(dentry, mnt, s, m->size - m->count);
+                char *p = d_path(path, s, m->size - m->count);
                 if (!IS_ERR(p)) {
                         while (s <= p) {
                                 char c = *p++;
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 2d3e107da2d3..cb2b63ae0bf4 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -27,6 +27,7 @@
 #include <linux/list.h>
 #include <linux/anon_inodes.h>
 #include <linux/signalfd.h>
+#include <linux/syscalls.h>
 
 struct signalfd_ctx {
         sigset_t sigmask;
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index 9416ead0c7aa..376ef3ee6ed7 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -500,6 +500,13 @@ static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)
         struct smb_fattr root;
         int ver;
         void *mem;
+        static int warn_count;
+
+        if (warn_count < 5) {
+                warn_count++;
+                printk(KERN_EMERG "smbfs is deprecated and will be removed"
+                        " from the 2.6.27 kernel. Please migrate to cifs\n");
+        }
 
         if (!raw_data)
                 goto out_no_data;
diff --git a/fs/smbfs/sock.c b/fs/smbfs/sock.c
index e48bd8235a8e..e37fe4deebd0 100644
--- a/fs/smbfs/sock.c
+++ b/fs/smbfs/sock.c
@@ -329,9 +329,8 @@ smb_receive(struct smb_sb_info *server, struct smb_request *req)
         msg.msg_control = NULL;
 
         /* Dont repeat bytes and count available bufferspace */
-        rlen = smb_move_iov(&p, &num, iov, req->rq_bytes_recvd);
-        if (req->rq_rlen < rlen)
-                rlen = req->rq_rlen;
+        rlen = min_t(int, smb_move_iov(&p, &num, iov, req->rq_bytes_recvd),
+                        (req->rq_rlen - req->rq_bytes_recvd));
 
         result = kernel_recvmsg(sock, &msg, p, num, rlen, flags);
 
diff --git a/fs/splice.c b/fs/splice.c
index 4ee49e86edde..9b559ee711a8 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1179,6 +1179,9 @@ static int copy_from_user_mmap_sem(void *dst, const void __user *src, size_t n)
 {
         int partial;
 
+        if (!access_ok(VERIFY_READ, src, n))
+                return -EFAULT;
+
         pagefault_disable();
         partial = __copy_from_user_inatomic(dst, src, n);
         pagefault_enable();
@@ -1231,7 +1234,7 @@ static int get_iovec_page_array(const struct iovec __user *iov,
                 if (unlikely(!len))
                         break;
                 error = -EFAULT;
-                if (unlikely(!base))
+                if (!access_ok(VERIFY_READ, base, len))
                         break;
 
                 /*
@@ -1387,6 +1390,11 @@ static long vmsplice_to_user(struct file *file, const struct iovec __user *iov,
                         break;
                 }
 
+                if (unlikely(!access_ok(VERIFY_WRITE, base, len))) {
+                        error = -EFAULT;
+                        break;
+                }
+
                 sd.len = 0;
                 sd.total_len = len;
                 sd.flags = flags;
diff --git a/fs/stat.c b/fs/stat.c
index 68510068a641..9cf41f719d50 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -62,8 +62,8 @@ int vfs_stat_fd(int dfd, char __user *name, struct kstat *stat)
 
         error = __user_walk_fd(dfd, name, LOOKUP_FOLLOW, &nd);
         if (!error) {
-                error = vfs_getattr(nd.mnt, nd.dentry, stat);
-                path_release(&nd);
+                error = vfs_getattr(nd.path.mnt, nd.path.dentry, stat);
+                path_put(&nd.path);
         }
         return error;
 }
@@ -82,8 +82,8 @@ int vfs_lstat_fd(int dfd, char __user *name, struct kstat *stat)
 
         error = __user_walk_fd(dfd, name, 0, &nd);
         if (!error) {
-                error = vfs_getattr(nd.mnt, nd.dentry, stat);
-                path_release(&nd);
+                error = vfs_getattr(nd.path.mnt, nd.path.dentry, stat);
+                path_put(&nd.path);
         }
         return error;
 }
@@ -302,17 +302,18 @@ asmlinkage long sys_readlinkat(int dfd, const char __user *path,
 
         error = __user_walk_fd(dfd, path, 0, &nd);
         if (!error) {
-                struct inode * inode = nd.dentry->d_inode;
+                struct inode *inode = nd.path.dentry->d_inode;
 
                 error = -EINVAL;
                 if (inode->i_op && inode->i_op->readlink) {
-                        error = security_inode_readlink(nd.dentry);
+                        error = security_inode_readlink(nd.path.dentry);
                         if (!error) {
-                                touch_atime(nd.mnt, nd.dentry);
-                                error = inode->i_op->readlink(nd.dentry, buf, bufsiz);
+                                touch_atime(nd.path.mnt, nd.path.dentry);
+                                error = inode->i_op->readlink(nd.path.dentry,
+                                                              buf, bufsiz);
                         }
                 }
-                path_release(&nd);
+                path_put(&nd.path);
         }
         return error;
 }
diff --git a/fs/super.c b/fs/super.c
index ceaf2e3d594c..88811f60c8de 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -105,6 +105,7 @@ static inline void destroy_super(struct super_block *s)
 {
         security_sb_free(s);
         kfree(s->s_subtype);
+        kfree(s->s_options);
         kfree(s);
 }
 
@@ -603,6 +604,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
                         mark_files_ro(sb);
                 else if (!fs_may_remount_ro(sb))
                         return -EBUSY;
+                DQUOT_OFF(sb);
         }
 
         if (sb->s_op->remount_fs) {
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 0871c3dadce1..477904915032 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -77,7 +77,12 @@ void sysfs_remove_group(struct kobject * kobj,
 
         if (grp->name) {
                 sd = sysfs_get_dirent(dir_sd, grp->name);
-                BUG_ON(!sd);
+                if (!sd) {
+                        printk(KERN_WARNING "sysfs group %p not found for "
+                                "kobject '%s'\n", grp, kobject_name(kobj));
+                        WARN_ON(!sd);
+                        return;
+                }
         } else
                 sd = sysfs_get(dir_sd);
 
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 81ec6c548c07..c5d60de0658f 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -169,20 +169,27 @@ void sysv_set_inode(struct inode *inode, dev_t rdev)
                 init_special_inode(inode, inode->i_mode, rdev);
 }
 
-static void sysv_read_inode(struct inode *inode)
+struct inode *sysv_iget(struct super_block *sb, unsigned int ino)
 {
-        struct super_block * sb = inode->i_sb;
         struct sysv_sb_info * sbi = SYSV_SB(sb);
         struct buffer_head * bh;
         struct sysv_inode * raw_inode;
         struct sysv_inode_info * si;
-        unsigned int block, ino = inode->i_ino;
+        struct inode *inode;
+        unsigned int block;
 
         if (!ino || ino > sbi->s_ninodes) {
                 printk("Bad inode number on dev %s: %d is out of range\n",
-                       inode->i_sb->s_id, ino);
-                goto bad_inode;
+                       sb->s_id, ino);
+                return ERR_PTR(-EIO);
         }
+
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
         raw_inode = sysv_raw_inode(sb, ino, &bh);
         if (!raw_inode) {
                 printk("Major problem: unable to read inode from dev %s\n",
@@ -214,11 +221,12 @@ static void sysv_read_inode(struct inode *inode)
                                old_decode_dev(fs32_to_cpu(sbi, si->i_data[0])));
         else
                 sysv_set_inode(inode, 0);
-        return;
+        unlock_new_inode(inode);
+        return inode;
 
 bad_inode:
-        make_bad_inode(inode);
-        return;
+        iget_failed(inode);
+        return ERR_PTR(-EIO);
 }
 
 static struct buffer_head * sysv_update_inode(struct inode * inode)
@@ -328,7 +336,6 @@ static void init_once(struct kmem_cache *cachep, void *p)
 const struct super_operations sysv_sops = {
         .alloc_inode    = sysv_alloc_inode,
         .destroy_inode  = sysv_destroy_inode,
-        .read_inode     = sysv_read_inode,
         .write_inode    = sysv_write_inode,
         .delete_inode   = sysv_delete_inode,
         .put_super      = sysv_put_super,
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index 6bd850b7641a..a1f1ef33e81c 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -53,9 +53,9 @@ static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry, st
         ino = sysv_inode_by_name(dentry);
 
         if (ino) {
-                inode = iget(dir->i_sb, ino);
-                if (!inode)
-                        return ERR_PTR(-EACCES);
+                inode = sysv_iget(dir->i_sb, ino);
+                if (IS_ERR(inode))
+                        return ERR_CAST(inode);
         }
         d_add(dentry, inode);
         return NULL;
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index 6f9707a1b954..5a903da54551 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -332,8 +332,8 @@ static int complete_read_super(struct super_block *sb, int silent, int size)
         sb->s_magic = SYSV_MAGIC_BASE + sbi->s_type;
         /* set up enough so that it can read an inode */
         sb->s_op = &sysv_sops;
-        root_inode = iget(sb,SYSV_ROOT_INO);
-        if (!root_inode || is_bad_inode(root_inode)) {
+        root_inode = sysv_iget(sb, SYSV_ROOT_INO);
+        if (IS_ERR(root_inode)) {
                 printk("SysV FS: get root inode failed\n");
                 return 0;
         }
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 64c03bdf06a5..42d51d1c05cd 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -141,6 +141,7 @@ extern int __sysv_write_begin(struct file *file, struct address_space *mapping,
                         struct page **pagep, void **fsdata);
 
 /* inode.c */
+extern struct inode *sysv_iget(struct super_block *, unsigned int);
 extern int sysv_write_inode(struct inode *, int);
 extern int sysv_sync_inode(struct inode *);
 extern int sysv_sync_file(struct file *, struct dentry *, int);
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 61983f3b107c..10c80b59ec4b 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -25,13 +25,15 @@ struct timerfd_ctx {
         struct hrtimer tmr;
         ktime_t tintv;
         wait_queue_head_t wqh;
+        u64 ticks;
         int expired;
+        int clockid;
 };
 
 /*
  * This gets called when the timer event triggers. We set the "expired"
  * flag, but we do not re-arm the timer (in case it's necessary,
- * tintv.tv64 != 0) until the timer is read.
+ * tintv.tv64 != 0) until the timer is accessed.
  */
 static enum hrtimer_restart timerfd_tmrproc(struct hrtimer *htmr)
 {
@@ -40,13 +42,24 @@ static enum hrtimer_restart timerfd_tmrproc(struct hrtimer *htmr)
 
         spin_lock_irqsave(&ctx->wqh.lock, flags);
         ctx->expired = 1;
+        ctx->ticks++;
         wake_up_locked(&ctx->wqh);
         spin_unlock_irqrestore(&ctx->wqh.lock, flags);
 
         return HRTIMER_NORESTART;
 }
 
-static void timerfd_setup(struct timerfd_ctx *ctx, int clockid, int flags,
+static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
+{
+        ktime_t now, remaining;
+
+        now = ctx->tmr.base->get_time();
+        remaining = ktime_sub(ctx->tmr.expires, now);
+
+        return remaining.tv64 < 0 ? ktime_set(0, 0): remaining;
+}
+
+static void timerfd_setup(struct timerfd_ctx *ctx, int flags,
                           const struct itimerspec *ktmr)
 {
         enum hrtimer_mode htmode;
@@ -57,8 +70,9 @@ static void timerfd_setup(struct timerfd_ctx *ctx, int clockid, int flags,
 
         texp = timespec_to_ktime(ktmr->it_value);
         ctx->expired = 0;
+        ctx->ticks = 0;
         ctx->tintv = timespec_to_ktime(ktmr->it_interval);
-        hrtimer_init(&ctx->tmr, clockid, htmode);
+        hrtimer_init(&ctx->tmr, ctx->clockid, htmode);
         ctx->tmr.expires = texp;
         ctx->tmr.function = timerfd_tmrproc;
         if (texp.tv64 != 0)
@@ -83,7 +97,7 @@ static unsigned int timerfd_poll(struct file *file, poll_table *wait)
         poll_wait(file, &ctx->wqh, wait);
 
         spin_lock_irqsave(&ctx->wqh.lock, flags);
-        if (ctx->expired)
+        if (ctx->ticks)
                 events |= POLLIN;
         spin_unlock_irqrestore(&ctx->wqh.lock, flags);
 
@@ -102,11 +116,11 @@ static ssize_t timerfd_read(struct file *file, char __user *buf, size_t count,
                 return -EINVAL;
         spin_lock_irq(&ctx->wqh.lock);
         res = -EAGAIN;
-        if (!ctx->expired && !(file->f_flags & O_NONBLOCK)) {
+        if (!ctx->ticks && !(file->f_flags & O_NONBLOCK)) {
                 __add_wait_queue(&ctx->wqh, &wait);
                 for (res = 0;;) {
                         set_current_state(TASK_INTERRUPTIBLE);
-                        if (ctx->expired) {
+                        if (ctx->ticks) {
                                 res = 0;
                                 break;
                         }
@@ -121,22 +135,21 @@ static ssize_t timerfd_read(struct file *file, char __user *buf, size_t count,
                 __remove_wait_queue(&ctx->wqh, &wait);
                 __set_current_state(TASK_RUNNING);
         }
-        if (ctx->expired) {
-                ctx->expired = 0;
-                if (ctx->tintv.tv64 != 0) {
+        if (ctx->ticks) {
+                ticks = ctx->ticks;
+                if (ctx->expired && ctx->tintv.tv64) {
                         /*
                          * If tintv.tv64 != 0, this is a periodic timer that
                          * needs to be re-armed. We avoid doing it in the timer
                          * callback to avoid DoS attacks specifying a very
                          * short timer period.
                          */
-                        ticks = (u64)
-                                hrtimer_forward(&ctx->tmr,
-                                                hrtimer_cb_get_time(&ctx->tmr),
-                                                ctx->tintv);
+                        ticks += hrtimer_forward_now(&ctx->tmr,
+                                                     ctx->tintv) - 1;
                         hrtimer_restart(&ctx->tmr);
-                } else
-                        ticks = 1;
+                }
+                ctx->expired = 0;
+                ctx->ticks = 0;
         }
         spin_unlock_irq(&ctx->wqh.lock);
         if (ticks)
@@ -150,76 +163,132 @@ static const struct file_operations timerfd_fops = {
         .read           = timerfd_read,
 };
 
-asmlinkage long sys_timerfd(int ufd, int clockid, int flags,
-                            const struct itimerspec __user *utmr)
+static struct file *timerfd_fget(int fd)
+{
+        struct file *file;
+
+        file = fget(fd);
+        if (!file)
+                return ERR_PTR(-EBADF);
+        if (file->f_op != &timerfd_fops) {
+                fput(file);
+                return ERR_PTR(-EINVAL);
+        }
+
+        return file;
+}
+
+asmlinkage long sys_timerfd_create(int clockid, int flags)
 {
-        int error;
+        int error, ufd;
         struct timerfd_ctx *ctx;
         struct file *file;
         struct inode *inode;
-        struct itimerspec ktmr;
-
-        if (copy_from_user(&ktmr, utmr, sizeof(ktmr)))
-                return -EFAULT;
 
+        if (flags)
+                return -EINVAL;
         if (clockid != CLOCK_MONOTONIC &&
             clockid != CLOCK_REALTIME)
                 return -EINVAL;
+
+        ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+        if (!ctx)
+                return -ENOMEM;
+
+        init_waitqueue_head(&ctx->wqh);
+        ctx->clockid = clockid;
+        hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS);
+
+        error = anon_inode_getfd(&ufd, &inode, &file, "[timerfd]",
+                                 &timerfd_fops, ctx);
+        if (error) {
+                kfree(ctx);
+                return error;
+        }
+
+        return ufd;
+}
+
+asmlinkage long sys_timerfd_settime(int ufd, int flags,
+                                    const struct itimerspec __user *utmr,
+                                    struct itimerspec __user *otmr)
+{
+        struct file *file;
+        struct timerfd_ctx *ctx;
+        struct itimerspec ktmr, kotmr;
+
+        if (copy_from_user(&ktmr, utmr, sizeof(ktmr)))
+                return -EFAULT;
+
         if (!timespec_valid(&ktmr.it_value) ||
             !timespec_valid(&ktmr.it_interval))
                 return -EINVAL;
 
-        if (ufd == -1) {
-                ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
-                if (!ctx)
-                        return -ENOMEM;
-
-                init_waitqueue_head(&ctx->wqh);
-
-                timerfd_setup(ctx, clockid, flags, &ktmr);
-
-                /*
-                 * When we call this, the initialization must be complete, since
-                 * anon_inode_getfd() will install the fd.
-                 */
-                error = anon_inode_getfd(&ufd, &inode, &file, "[timerfd]",
-                                         &timerfd_fops, ctx);
-                if (error)
-                        goto err_tmrcancel;
-        } else {
-                file = fget(ufd);
-                if (!file)
-                        return -EBADF;
-                ctx = file->private_data;
-                if (file->f_op != &timerfd_fops) {
-                        fput(file);
-                        return -EINVAL;
-                }
-                /*
-                 * We need to stop the existing timer before reprogramming
-                 * it to the new values.
-                 */
-                for (;;) {
-                        spin_lock_irq(&ctx->wqh.lock);
-                        if (hrtimer_try_to_cancel(&ctx->tmr) >= 0)
-                                break;
-                        spin_unlock_irq(&ctx->wqh.lock);
-                        cpu_relax();
-                }
-                /*
-                 * Re-program the timer to the new value ...
-                 */
-                timerfd_setup(ctx, clockid, flags, &ktmr);
+        file = timerfd_fget(ufd);
+        if (IS_ERR(file))
+                return PTR_ERR(file);
+        ctx = file->private_data;
 
+        /*
+         * We need to stop the existing timer before reprogramming
+         * it to the new values.
+         */
+        for (;;) {
+                spin_lock_irq(&ctx->wqh.lock);
+                if (hrtimer_try_to_cancel(&ctx->tmr) >= 0)
+                        break;
                 spin_unlock_irq(&ctx->wqh.lock);
-                fput(file);
+                cpu_relax();
         }
 
-        return ufd;
+        /*
+         * If the timer is expired and it's periodic, we need to advance it
+         * because the caller may want to know the previous expiration time.
+         * We do not update "ticks" and "expired" since the timer will be
+         * re-programmed again in the following timerfd_setup() call.
+         */
+        if (ctx->expired && ctx->tintv.tv64)
+                hrtimer_forward_now(&ctx->tmr, ctx->tintv);
 
-err_tmrcancel:
-        hrtimer_cancel(&ctx->tmr);
-        kfree(ctx);
-        return error;
+        kotmr.it_value = ktime_to_timespec(timerfd_get_remaining(ctx));
+        kotmr.it_interval = ktime_to_timespec(ctx->tintv);
+
+        /*
+         * Re-program the timer to the new value ...
+         */
+        timerfd_setup(ctx, flags, &ktmr);
+
+        spin_unlock_irq(&ctx->wqh.lock);
+        fput(file);
+        if (otmr && copy_to_user(otmr, &kotmr, sizeof(kotmr)))
+                return -EFAULT;
+
+        return 0;
+}
+
+asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr)
+{
+        struct file *file;
+        struct timerfd_ctx *ctx;
+        struct itimerspec kotmr;
+
+        file = timerfd_fget(ufd);
+        if (IS_ERR(file))
+                return PTR_ERR(file);
+        ctx = file->private_data;
+
+        spin_lock_irq(&ctx->wqh.lock);
+        if (ctx->expired && ctx->tintv.tv64) {
+                ctx->expired = 0;
+                ctx->ticks +=
+                        hrtimer_forward_now(&ctx->tmr, ctx->tintv) - 1;
+                hrtimer_restart(&ctx->tmr);
+        }
+        kotmr.it_value = ktime_to_timespec(timerfd_get_remaining(ctx));
+        kotmr.it_interval = ktime_to_timespec(ctx->tintv);
+        spin_unlock_irq(&ctx->wqh.lock);
+        fput(file);
+
+        return copy_to_user(otmr, &kotmr, sizeof(kotmr)) ? -EFAULT: 0;
 }
 
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index ab26176f6b91..f855dcbbdfb8 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -28,15 +28,16 @@
 #include "udf_i.h"
 #include "udf_sb.h"
 
-#define udf_clear_bit(nr,addr) ext2_clear_bit(nr,addr)
-#define udf_set_bit(nr,addr) ext2_set_bit(nr,addr)
+#define udf_clear_bit(nr, addr) ext2_clear_bit(nr, addr)
+#define udf_set_bit(nr, addr) ext2_set_bit(nr, addr)
 #define udf_test_bit(nr, addr) ext2_test_bit(nr, addr)
 #define udf_find_first_one_bit(addr, size) find_first_one_bit(addr, size)
-#define udf_find_next_one_bit(addr, size, offset) find_next_one_bit(addr, size, offset)
+#define udf_find_next_one_bit(addr, size, offset) \
+                find_next_one_bit(addr, size, offset)
 
 #define leBPL_to_cpup(x) leNUM_to_cpup(BITS_PER_LONG, x)
-#define leNUM_to_cpup(x,y) xleNUM_to_cpup(x,y)
-#define xleNUM_to_cpup(x,y) (le ## x ## _to_cpup(y))
+#define leNUM_to_cpup(x, y) xleNUM_to_cpup(x, y)
+#define xleNUM_to_cpup(x, y) (le ## x ## _to_cpup(y))
 #define uintBPL_t uint(BITS_PER_LONG)
 #define uint(x) xuint(x)
 #define xuint(x) __le ## x
@@ -62,7 +63,8 @@ static inline int find_next_one_bit(void *addr, int size, int offset)
                 result += BITS_PER_LONG;
         }
         while (size & ~(BITS_PER_LONG - 1)) {
-                if ((tmp = leBPL_to_cpup(p++)))
+                tmp = leBPL_to_cpup(p++);
+                if (tmp)
                         goto found_middle;
                 result += BITS_PER_LONG;
                 size -= BITS_PER_LONG;
@@ -88,12 +90,12 @@ static int read_block_bitmap(struct super_block *sb,
         kernel_lb_addr loc;
 
         loc.logicalBlockNum = bitmap->s_extPosition;
-        loc.partitionReferenceNum = UDF_SB_PARTITION(sb);
+        loc.partitionReferenceNum = UDF_SB(sb)->s_partition;
 
         bh = udf_tread(sb, udf_get_lb_pblock(sb, loc, block));
-        if (!bh) {
+        if (!bh)
                 retval = -EIO;
-        }
+
         bitmap->s_block_bitmap[bitmap_nr] = bh;
         return retval;
 }
@@ -138,6 +140,20 @@ static inline int load_block_bitmap(struct super_block *sb,
         return slot;
 }
 
+static bool udf_add_free_space(struct udf_sb_info *sbi,
+                                u16 partition, u32 cnt)
+{
+        struct logicalVolIntegrityDesc *lvid;
+
+        if (sbi->s_lvid_bh == NULL)
+                return false;
+
+        lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
+        lvid->freeSpaceTable[partition] = cpu_to_le32(le32_to_cpu(
+                                        lvid->freeSpaceTable[partition]) + cnt);
+        return true;
+}
+
 static void udf_bitmap_free_blocks(struct super_block *sb,
                                    struct inode *inode,
                                    struct udf_bitmap *bitmap,
@@ -155,57 +171,58 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
 
         mutex_lock(&sbi->s_alloc_mutex);
         if (bloc.logicalBlockNum < 0 ||
-            (bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum)) {
+            (bloc.logicalBlockNum + count) >
+                sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
                 udf_debug("%d < %d || %d + %d > %d\n",
                           bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
-                          UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum));
+                          sbi->s_partmaps[bloc.partitionReferenceNum].
+                                                        s_partition_len);
                 goto error_return;
         }
 
-        block = bloc.logicalBlockNum + offset + (sizeof(struct spaceBitmapDesc) << 3);
+        block = bloc.logicalBlockNum + offset +
+                (sizeof(struct spaceBitmapDesc) << 3);
 
-do_more:
-        overflow = 0;
-        block_group = block >> (sb->s_blocksize_bits + 3);
-        bit = block % (sb->s_blocksize << 3);
+        do {
+                overflow = 0;
+                block_group = block >> (sb->s_blocksize_bits + 3);
+                bit = block % (sb->s_blocksize << 3);
 
-        /*
-         * Check to see if we are freeing blocks across a group boundary.
-         */
-        if (bit + count > (sb->s_blocksize << 3)) {
-                overflow = bit + count - (sb->s_blocksize << 3);
-                count -= overflow;
-        }
-        bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
-        if (bitmap_nr < 0)
-                goto error_return;
+                /*
+                * Check to see if we are freeing blocks across a group boundary.
+                */
+                if (bit + count > (sb->s_blocksize << 3)) {
+                        overflow = bit + count - (sb->s_blocksize << 3);
+                        count -= overflow;
+                }
+                bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
+                if (bitmap_nr < 0)
+                        goto error_return;
 
-        bh = bitmap->s_block_bitmap[bitmap_nr];
-        for (i = 0; i < count; i++) {
-                if (udf_set_bit(bit + i, bh->b_data)) {
-                        udf_debug("bit %ld already set\n", bit + i);
-                        udf_debug("byte=%2x\n", ((char *)bh->b_data)[(bit + i) >> 3]);
-                } else {
-                        if (inode)
-                                DQUOT_FREE_BLOCK(inode, 1);
-                        if (UDF_SB_LVIDBH(sb)) {
-                                UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)] =
-                                        cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)]) + 1);
+                bh = bitmap->s_block_bitmap[bitmap_nr];
+                for (i = 0; i < count; i++) {
+                        if (udf_set_bit(bit + i, bh->b_data)) {
+                                udf_debug("bit %ld already set\n", bit + i);
+                                udf_debug("byte=%2x\n",
+                                        ((char *)bh->b_data)[(bit + i) >> 3]);
+                        } else {
+                                if (inode)
+                                        DQUOT_FREE_BLOCK(inode, 1);
+                                udf_add_free_space(sbi, sbi->s_partition, 1);
                         }
                 }
-        }
-        mark_buffer_dirty(bh);
-        if (overflow) {
-                block += count;
-                count = overflow;
-                goto do_more;
-        }
+                mark_buffer_dirty(bh);
+                if (overflow) {
+                        block += count;
+                        count = overflow;
+                }
+        } while (overflow);
+
 error_return:
         sb->s_dirt = 1;
-        if (UDF_SB_LVIDBH(sb))
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+        if (sbi->s_lvid_bh)
+                mark_buffer_dirty(sbi->s_lvid_bh);
         mutex_unlock(&sbi->s_alloc_mutex);
-        return;
 }
 
 static int udf_bitmap_prealloc_blocks(struct super_block *sb,
@@ -219,53 +236,50 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
         int bit, block, block_group, group_start;
         int nr_groups, bitmap_nr;
         struct buffer_head *bh;
+        __u32 part_len;
 
         mutex_lock(&sbi->s_alloc_mutex);
-        if (first_block < 0 || first_block >= UDF_SB_PARTLEN(sb, partition))
+        part_len = sbi->s_partmaps[partition].s_partition_len;
+        if (first_block < 0 || first_block >= part_len)
                 goto out;
 
-        if (first_block + block_count > UDF_SB_PARTLEN(sb, partition))
-                block_count = UDF_SB_PARTLEN(sb, partition) - first_block;
+        if (first_block + block_count > part_len)
+                block_count = part_len - first_block;
 
-repeat:
-        nr_groups = (UDF_SB_PARTLEN(sb, partition) +
-                     (sizeof(struct spaceBitmapDesc) << 3) +
-                     (sb->s_blocksize * 8) - 1) / (sb->s_blocksize * 8);
-        block = first_block + (sizeof(struct spaceBitmapDesc) << 3);
-        block_group = block >> (sb->s_blocksize_bits + 3);
-        group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc);
+        do {
+                nr_groups = udf_compute_nr_groups(sb, partition);
+                block = first_block + (sizeof(struct spaceBitmapDesc) << 3);
+                block_group = block >> (sb->s_blocksize_bits + 3);
+                group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc);
 
-        bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
-        if (bitmap_nr < 0)
-                goto out;
-        bh = bitmap->s_block_bitmap[bitmap_nr];
+                bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
+                if (bitmap_nr < 0)
+                        goto out;
+                bh = bitmap->s_block_bitmap[bitmap_nr];
 
-        bit = block % (sb->s_blocksize << 3);
+                bit = block % (sb->s_blocksize << 3);
 
-        while (bit < (sb->s_blocksize << 3) && block_count > 0) {
-                if (!udf_test_bit(bit, bh->b_data)) {
-                        goto out;
-                } else if (DQUOT_PREALLOC_BLOCK(inode, 1)) {
-                        goto out;
-                } else if (!udf_clear_bit(bit, bh->b_data)) {
-                        udf_debug("bit already cleared for block %d\n", bit);
-                        DQUOT_FREE_BLOCK(inode, 1);
-                        goto out;
+                while (bit < (sb->s_blocksize << 3) && block_count > 0) {
+                        if (!udf_test_bit(bit, bh->b_data))
+                                goto out;
+                        else if (DQUOT_PREALLOC_BLOCK(inode, 1))
+                                goto out;
+                        else if (!udf_clear_bit(bit, bh->b_data)) {
+                                udf_debug("bit already cleared for block %d\n", bit);
+                                DQUOT_FREE_BLOCK(inode, 1);
+                                goto out;
+                        }
+                        block_count--;
+                        alloc_count++;
+                        bit++;
+                        block++;
                 }
-                block_count--;
-                alloc_count++;
-                bit++;
-                block++;
-        }
-        mark_buffer_dirty(bh);
-        if (block_count > 0)
-                goto repeat;
+                mark_buffer_dirty(bh);
+        } while (block_count > 0);
+
 out:
-        if (UDF_SB_LVIDBH(sb)) {
-                UDF_SB_LVID(sb)->freeSpaceTable[partition] =
-                        cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition]) - alloc_count);
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
-        }
+        if (udf_add_free_space(sbi, partition, -alloc_count))
+                mark_buffer_dirty(sbi->s_lvid_bh);
         sb->s_dirt = 1;
         mutex_unlock(&sbi->s_alloc_mutex);
         return alloc_count;
@@ -287,7 +301,7 @@ static int udf_bitmap_new_block(struct super_block *sb,
         mutex_lock(&sbi->s_alloc_mutex);
 
 repeat:
-        if (goal < 0 || goal >= UDF_SB_PARTLEN(sb, partition))
+        if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
                 goal = 0;
 
         nr_groups = bitmap->s_nr_groups;
@@ -312,14 +326,16 @@ repeat:
                 if (bit < end_goal)
                         goto got_block;
 
-                ptr = memscan((char *)bh->b_data + (bit >> 3), 0xFF, sb->s_blocksize - ((bit + 7) >> 3));
+                ptr = memscan((char *)bh->b_data + (bit >> 3), 0xFF,
+                              sb->s_blocksize - ((bit + 7) >> 3));
                 newbit = (ptr - ((char *)bh->b_data)) << 3;
                 if (newbit < sb->s_blocksize << 3) {
                         bit = newbit;
                         goto search_back;
                 }
 
-                newbit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, bit);
+                newbit = udf_find_next_one_bit(bh->b_data,
+                                               sb->s_blocksize << 3, bit);
                 if (newbit < sb->s_blocksize << 3) {
                         bit = newbit;
                         goto got_block;
@@ -358,15 +374,20 @@ repeat:
         if (bit < sb->s_blocksize << 3)
                 goto search_back;
         else
-                bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, group_start << 3);
+                bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3,
+                                            group_start << 3);
         if (bit >= sb->s_blocksize << 3) {
                 mutex_unlock(&sbi->s_alloc_mutex);
                 return 0;
         }
 
 search_back:
-        for (i = 0; i < 7 && bit > (group_start << 3) && udf_test_bit(bit - 1, bh->b_data); i++, bit--)
-                ; /* empty loop */
+        i = 0;
+        while (i < 7 && bit > (group_start << 3) &&
+               udf_test_bit(bit - 1, bh->b_data)) {
+                ++i;
+                --bit;
+        }
 
 got_block:
 
@@ -389,11 +410,8 @@ got_block:
 
         mark_buffer_dirty(bh);
 
-        if (UDF_SB_LVIDBH(sb)) {
-                UDF_SB_LVID(sb)->freeSpaceTable[partition] =
-                        cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition]) - 1);
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
-        }
+        if (udf_add_free_space(sbi, partition, -1))
+                mark_buffer_dirty(sbi->s_lvid_bh);
         sb->s_dirt = 1;
         mutex_unlock(&sbi->s_alloc_mutex);
         *err = 0;
@@ -418,56 +436,70 @@ static void udf_table_free_blocks(struct super_block *sb,
         struct extent_position oepos, epos;
         int8_t etype;
         int i;
+        struct udf_inode_info *iinfo;
 
         mutex_lock(&sbi->s_alloc_mutex);
         if (bloc.logicalBlockNum < 0 ||
-            (bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum)) {
+            (bloc.logicalBlockNum + count) >
+                sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
                 udf_debug("%d < %d || %d + %d > %d\n",
                           bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
-                          UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum));
+                          sbi->s_partmaps[bloc.partitionReferenceNum].
+                                                        s_partition_len);
                 goto error_return;
         }
 
-        /* We do this up front - There are some error conditions that could occure,
-           but.. oh well */
+        iinfo = UDF_I(table);
+        /* We do this up front - There are some error conditions that
+           could occure, but.. oh well */
         if (inode)
                 DQUOT_FREE_BLOCK(inode, count);
-        if (UDF_SB_LVIDBH(sb)) {
-                UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)] =
-                        cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)]) + count);
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
-        }
+        if (udf_add_free_space(sbi, sbi->s_partition, count))
+                mark_buffer_dirty(sbi->s_lvid_bh);
 
         start = bloc.logicalBlockNum + offset;
         end = bloc.logicalBlockNum + offset + count - 1;
 
         epos.offset = oepos.offset = sizeof(struct unallocSpaceEntry);
         elen = 0;
-        epos.block = oepos.block = UDF_I_LOCATION(table);
+        epos.block = oepos.block = iinfo->i_location;
         epos.bh = oepos.bh = NULL;
 
         while (count &&
                (etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
-                if (((eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits)) == start)) {
-                        if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits)) {
-                                count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
-                                start += ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
-                                elen = (etype << 30) | (0x40000000 - sb->s_blocksize);
+                if (((eloc.logicalBlockNum +
+                        (elen >> sb->s_blocksize_bits)) == start)) {
+                        if ((0x3FFFFFFF - elen) <
+                                        (count << sb->s_blocksize_bits)) {
+                                uint32_t tmp = ((0x3FFFFFFF - elen) >>
+                                                        sb->s_blocksize_bits);
+                                count -= tmp;
+                                start += tmp;
+                                elen = (etype << 30) |
+                                        (0x40000000 - sb->s_blocksize);
                         } else {
-                                elen = (etype << 30) | (elen + (count << sb->s_blocksize_bits));
+                                elen = (etype << 30) |
+                                        (elen +
+                                        (count << sb->s_blocksize_bits));
                                 start += count;
                                 count = 0;
                         }
                         udf_write_aext(table, &oepos, eloc, elen, 1);
                 } else if (eloc.logicalBlockNum == (end + 1)) {
-                        if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits)) {
-                                count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
-                                end -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
-                                eloc.logicalBlockNum -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
-                                elen = (etype << 30) | (0x40000000 - sb->s_blocksize);
+                        if ((0x3FFFFFFF - elen) <
+                                        (count << sb->s_blocksize_bits)) {
+                                uint32_t tmp = ((0x3FFFFFFF - elen) >>
+                                                sb->s_blocksize_bits);
+                                count -= tmp;
+                                end -= tmp;
+                                eloc.logicalBlockNum -= tmp;
+                                elen = (etype << 30) |
+                                        (0x40000000 - sb->s_blocksize);
                         } else {
                                 eloc.logicalBlockNum = start;
-                                elen = (etype << 30) | (elen + (count << sb->s_blocksize_bits));
+                                elen = (etype << 30) |
+                                        (elen +
+                                        (count << sb->s_blocksize_bits));
                                 end -= count;
                                 count = 0;
                         }
@@ -488,9 +520,9 @@ static void udf_table_free_blocks(struct super_block *sb,
 
         if (count) {
                 /*
-                 * NOTE: we CANNOT use udf_add_aext here, as it can try to allocate
-                 * a new block, and since we hold the super block lock already
-                 * very bad things would happen :)
+                 * NOTE: we CANNOT use udf_add_aext here, as it can try to
+                 * allocate a new block, and since we hold the super block
+                 * lock already very bad things would happen :)
                  *
                  * We copy the behavior of udf_add_aext, but instead of
                  * trying to allocate a new block close to the existing one,
@@ -509,11 +541,11 @@ static void udf_table_free_blocks(struct super_block *sb,
                 elen = EXT_RECORDED_ALLOCATED |
                         (count << sb->s_blocksize_bits);
 
-                if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT) {
+                if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                         adsize = sizeof(short_ad);
-                } else if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_LONG) {
+                else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                         adsize = sizeof(long_ad);
-                } else {
+                else {
                         brelse(oepos.bh);
                         brelse(epos.bh);
                         goto error_return;
@@ -531,56 +563,70 @@ static void udf_table_free_blocks(struct super_block *sb,
                         eloc.logicalBlockNum++;
                         elen -= sb->s_blocksize;
 
-                        if (!(epos.bh = udf_tread(sb, udf_get_lb_pblock(sb, epos.block, 0)))) {
+                        epos.bh = udf_tread(sb,
+                                        udf_get_lb_pblock(sb, epos.block, 0));
+                        if (!epos.bh) {
                                 brelse(oepos.bh);
                                 goto error_return;
                         }
                         aed = (struct allocExtDesc *)(epos.bh->b_data);
-                        aed->previousAllocExtLocation = cpu_to_le32(oepos.block.logicalBlockNum);
+                        aed->previousAllocExtLocation =
+                                cpu_to_le32(oepos.block.logicalBlockNum);
                         if (epos.offset + adsize > sb->s_blocksize) {
                                 loffset = epos.offset;
                                 aed->lengthAllocDescs = cpu_to_le32(adsize);
-                                sptr = UDF_I_DATA(table) + epos.offset - adsize;
-                                dptr = epos.bh->b_data + sizeof(struct allocExtDesc);
+                                sptr = iinfo->i_ext.i_data + epos.offset
+                                                                - adsize;
+                                dptr = epos.bh->b_data +
+                                        sizeof(struct allocExtDesc);
                                 memcpy(dptr, sptr, adsize);
-                                epos.offset = sizeof(struct allocExtDesc) + adsize;
+                                epos.offset = sizeof(struct allocExtDesc) +
+                                                adsize;
                         } else {
                                 loffset = epos.offset + adsize;
                                 aed->lengthAllocDescs = cpu_to_le32(0);
                                 if (oepos.bh) {
                                         sptr = oepos.bh->b_data + epos.offset;
-                                        aed = (struct allocExtDesc *)oepos.bh->b_data;
+                                        aed = (struct allocExtDesc *)
+                                                oepos.bh->b_data;
                                         aed->lengthAllocDescs =
-                                                cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
+                                                cpu_to_le32(le32_to_cpu(
+                                                        aed->lengthAllocDescs) +
+                                                                adsize);
                                 } else {
-                                        sptr = UDF_I_DATA(table) + epos.offset;
-                                        UDF_I_LENALLOC(table) += adsize;
+                                        sptr = iinfo->i_ext.i_data +
+                                                                epos.offset;
+                                        iinfo->i_lenAlloc += adsize;
                                         mark_inode_dirty(table);
                                 }
                                 epos.offset = sizeof(struct allocExtDesc);
                         }
-                        if (UDF_SB_UDFREV(sb) >= 0x0200)
-                                udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 3, 1,
-                                            epos.block.logicalBlockNum, sizeof(tag));
+                        if (sbi->s_udfrev >= 0x0200)
+                                udf_new_tag(epos.bh->b_data, TAG_IDENT_AED,
+                                            3, 1, epos.block.logicalBlockNum,
+                                            sizeof(tag));
                         else
-                                udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 2, 1,
-                                            epos.block.logicalBlockNum, sizeof(tag));
-
-                        switch (UDF_I_ALLOCTYPE(table)) {
-                                case ICBTAG_FLAG_AD_SHORT:
-                                        sad = (short_ad *)sptr;
-                                        sad->extLength = cpu_to_le32(
-                                                EXT_NEXT_EXTENT_ALLOCDECS |
-                                                sb->s_blocksize);
-                                        sad->extPosition = cpu_to_le32(epos.block.logicalBlockNum);
-                                        break;
-                                case ICBTAG_FLAG_AD_LONG:
-                                        lad = (long_ad *)sptr;
-                                        lad->extLength = cpu_to_le32(
-                                                EXT_NEXT_EXTENT_ALLOCDECS |
-                                                sb->s_blocksize);
-                                        lad->extLocation = cpu_to_lelb(epos.block);
-                                        break;
+                                udf_new_tag(epos.bh->b_data, TAG_IDENT_AED,
+                                            2, 1, epos.block.logicalBlockNum,
+                                            sizeof(tag));
+
+                        switch (iinfo->i_alloc_type) {
+                        case ICBTAG_FLAG_AD_SHORT:
+                                sad = (short_ad *)sptr;
+                                sad->extLength = cpu_to_le32(
+                                        EXT_NEXT_EXTENT_ALLOCDECS |
+                                        sb->s_blocksize);
+                                sad->extPosition =
+                                        cpu_to_le32(epos.block.logicalBlockNum);
+                                break;
+                        case ICBTAG_FLAG_AD_LONG:
+                                lad = (long_ad *)sptr;
+                                lad->extLength = cpu_to_le32(
+                                        EXT_NEXT_EXTENT_ALLOCDECS |
+                                        sb->s_blocksize);
+                                lad->extLocation =
+                                        cpu_to_lelb(epos.block);
+                                break;
                         }
                         if (oepos.bh) {
                                 udf_update_tag(oepos.bh->b_data, loffset);
@@ -590,16 +636,18 @@ static void udf_table_free_blocks(struct super_block *sb,
                         }
                 }
 
-                if (elen) { /* It's possible that stealing the block emptied the extent */
+                /* It's possible that stealing the block emptied the extent */
+                if (elen) {
                         udf_write_aext(table, &epos, eloc, elen, 1);
 
                         if (!epos.bh) {
-                                UDF_I_LENALLOC(table) += adsize;
+                                iinfo->i_lenAlloc += adsize;
                                 mark_inode_dirty(table);
                         } else {
                                 aed = (struct allocExtDesc *)epos.bh->b_data;
                                 aed->lengthAllocDescs =
-                                        cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
+                                        cpu_to_le32(le32_to_cpu(
+                                            aed->lengthAllocDescs) + adsize);
                                 udf_update_tag(epos.bh->b_data, epos.offset);
                                 mark_buffer_dirty(epos.bh);
                         }
@@ -626,20 +674,23 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
         kernel_lb_addr eloc;
         struct extent_position epos;
         int8_t etype = -1;
+        struct udf_inode_info *iinfo;
 
-        if (first_block < 0 || first_block >= UDF_SB_PARTLEN(sb, partition))
+        if (first_block < 0 ||
+                first_block >= sbi->s_partmaps[partition].s_partition_len)
                 return 0;
 
-        if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT)
+        iinfo = UDF_I(table);
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 adsize = sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 adsize = sizeof(long_ad);
         else
                 return 0;
 
         mutex_lock(&sbi->s_alloc_mutex);
         epos.offset = sizeof(struct unallocSpaceEntry);
-        epos.block = UDF_I_LOCATION(table);
+        epos.block = iinfo->i_location;
         epos.bh = NULL;
         eloc.logicalBlockNum = 0xFFFFFFFF;
 
@@ -654,26 +705,26 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
                 epos.offset -= adsize;
 
                 alloc_count = (elen >> sb->s_blocksize_bits);
-                if (inode && DQUOT_PREALLOC_BLOCK(inode, alloc_count > block_count ? block_count : alloc_count)) {
+                if (inode && DQUOT_PREALLOC_BLOCK(inode,
+                        alloc_count > block_count ? block_count : alloc_count))
                         alloc_count = 0;
-                } else if (alloc_count > block_count) {
+                else if (alloc_count > block_count) {
                         alloc_count = block_count;
                         eloc.logicalBlockNum += alloc_count;
                         elen -= (alloc_count << sb->s_blocksize_bits);
-                        udf_write_aext(table, &epos, eloc, (etype << 30) | elen, 1);
-                } else {
-                        udf_delete_aext(table, epos, eloc, (etype << 30) | elen);
-                }
+                        udf_write_aext(table, &epos, eloc,
+                                        (etype << 30) | elen, 1);
+                } else
+                        udf_delete_aext(table, epos, eloc,
+                                        (etype << 30) | elen);
         } else {
                 alloc_count = 0;
         }
 
         brelse(epos.bh);
 
-        if (alloc_count && UDF_SB_LVIDBH(sb)) {
-                UDF_SB_LVID(sb)->freeSpaceTable[partition] =
-                        cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition]) - alloc_count);
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+        if (alloc_count && udf_add_free_space(sbi, partition, -alloc_count)) {
+                mark_buffer_dirty(sbi->s_lvid_bh);
                 sb->s_dirt = 1;
         }
         mutex_unlock(&sbi->s_alloc_mutex);
@@ -692,33 +743,35 @@ static int udf_table_new_block(struct super_block *sb,
         kernel_lb_addr eloc, uninitialized_var(goal_eloc);
         struct extent_position epos, goal_epos;
         int8_t etype;
+        struct udf_inode_info *iinfo = UDF_I(table);
 
         *err = -ENOSPC;
 
-        if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT)
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 adsize = sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 adsize = sizeof(long_ad);
         else
                 return newblock;
 
         mutex_lock(&sbi->s_alloc_mutex);
-        if (goal < 0 || goal >= UDF_SB_PARTLEN(sb, partition))
+        if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
                 goal = 0;
 
-        /* We search for the closest matching block to goal. If we find a exact hit,
-           we stop. Otherwise we keep going till we run out of extents.
-           We store the buffer_head, bloc, and extoffset of the current closest
-           match and use that when we are done.
+        /* We search for the closest matching block to goal. If we find
+           a exact hit, we stop. Otherwise we keep going till we run out
+           of extents. We store the buffer_head, bloc, and extoffset
+           of the current closest match and use that when we are done.
          */
         epos.offset = sizeof(struct unallocSpaceEntry);
-        epos.block = UDF_I_LOCATION(table);
+        epos.block = iinfo->i_location;
         epos.bh = goal_epos.bh = NULL;
 
         while (spread &&
                (etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
                 if (goal >= eloc.logicalBlockNum) {
-                        if (goal < eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits))
+                        if (goal < eloc.logicalBlockNum +
+                                        (elen >> sb->s_blocksize_bits))
                                 nspread = 0;
                         else
                                 nspread = goal - eloc.logicalBlockNum -
@@ -771,11 +824,8 @@ static int udf_table_new_block(struct super_block *sb,
                 udf_delete_aext(table, goal_epos, goal_eloc, goal_elen);
         brelse(goal_epos.bh);
 
-        if (UDF_SB_LVIDBH(sb)) {
-                UDF_SB_LVID(sb)->freeSpaceTable[partition] =
-                        cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition]) - 1);
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
-        }
+        if (udf_add_free_space(sbi, partition, -1))
+                mark_buffer_dirty(sbi->s_lvid_bh);
 
         sb->s_dirt = 1;
         mutex_unlock(&sbi->s_alloc_mutex);
@@ -789,22 +839,23 @@ inline void udf_free_blocks(struct super_block *sb,
                             uint32_t count)
 {
         uint16_t partition = bloc.partitionReferenceNum;
+        struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
 
-        if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) {
+        if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
                 return udf_bitmap_free_blocks(sb, inode,
-                                              UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap,
+                                              map->s_uspace.s_bitmap,
                                               bloc, offset, count);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE) {
+        } else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
                 return udf_table_free_blocks(sb, inode,
-                                             UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table,
+                                             map->s_uspace.s_table,
                                              bloc, offset, count);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) {
+        } else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
                 return udf_bitmap_free_blocks(sb, inode,
-                                              UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap,
+                                              map->s_fspace.s_bitmap,
                                               bloc, offset, count);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) {
+        } else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
                 return udf_table_free_blocks(sb, inode,
-                                             UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table,
+                                             map->s_fspace.s_table,
                                              bloc, offset, count);
         } else {
                 return;
@@ -816,51 +867,55 @@ inline int udf_prealloc_blocks(struct super_block *sb,
                                uint16_t partition, uint32_t first_block,
                                uint32_t block_count)
 {
-        if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) {
+        struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
+
+        if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
                 return udf_bitmap_prealloc_blocks(sb, inode,
-                                                  UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap,
-                                                  partition, first_block, block_count);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE) {
+                                                  map->s_uspace.s_bitmap,
+                                                  partition, first_block,
+                                                  block_count);
+        else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
                 return udf_table_prealloc_blocks(sb, inode,
-                                                 UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table,
-                                                 partition, first_block, block_count);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) {
+                                                 map->s_uspace.s_table,
+                                                 partition, first_block,
+                                                 block_count);
+        else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
                 return udf_bitmap_prealloc_blocks(sb, inode,
-                                                  UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap,
-                                                  partition, first_block, block_count);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) {
+                                                  map->s_fspace.s_bitmap,
+                                                  partition, first_block,
+                                                  block_count);
+        else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
                 return udf_table_prealloc_blocks(sb, inode,
-                                                 UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table,
-                                                 partition, first_block, block_count);
-        } else {
+                                                 map->s_fspace.s_table,
+                                                 partition, first_block,
+                                                 block_count);
+        else
                 return 0;
-        }
 }
 
 inline int udf_new_block(struct super_block *sb,
                          struct inode *inode,
                          uint16_t partition, uint32_t goal, int *err)
 {
-        int ret;
+        struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
 
-        if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) {
-                ret = udf_bitmap_new_block(sb, inode,
-                                           UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap,
+        if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
+                return udf_bitmap_new_block(sb, inode,
+                                           map->s_uspace.s_bitmap,
                                            partition, goal, err);
-                return ret;
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE) {
+        else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
                 return udf_table_new_block(sb, inode,
-                                           UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table,
+                                           map->s_uspace.s_table,
                                            partition, goal, err);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) {
+        else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
                 return udf_bitmap_new_block(sb, inode,
-                                            UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap,
+                                            map->s_fspace.s_bitmap,
                                             partition, goal, err);
-        } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) {
+        else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
                 return udf_table_new_block(sb, inode,
-                                           UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table,
+                                           map->s_fspace.s_table,
                                            partition, goal, err);
-        } else {
+        else {
                 *err = -EIO;
                 return 0;
         }
diff --git a/fs/udf/crc.c b/fs/udf/crc.c
index 85aaee5fab26..b1661296e786 100644
--- a/fs/udf/crc.c
+++ b/fs/udf/crc.c
@@ -79,7 +79,7 @@ static uint16_t crc_table[256] = {
  *      July 21, 1997 - Andrew E. Mileski
  *      Adapted from OSTA-UDF(tm) 1.50 standard.
  */
-uint16_t udf_crc(uint8_t * data, uint32_t size, uint16_t crc)
+uint16_t udf_crc(uint8_t *data, uint32_t size, uint16_t crc)
 {
         while (size--)
                 crc = crc_table[(crc >> 8 ^ *(data++)) & 0xffU] ^ (crc << 8);
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 9e3b9f97ddbc..8d8643ada199 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -36,80 +36,20 @@
 #include "udf_i.h"
 #include "udf_sb.h"
 
-/* Prototypes for file operations */
-static int udf_readdir(struct file *, void *, filldir_t);
-static int do_udf_readdir(struct inode *, struct file *, filldir_t, void *);
-
-/* readdir and lookup functions */
-
-const struct file_operations udf_dir_operations = {
-        .read                   = generic_read_dir,
-        .readdir                = udf_readdir,
-        .ioctl                  = udf_ioctl,
-        .fsync                  = udf_fsync_file,
-};
-
-/*
- * udf_readdir
- *
- * PURPOSE
- *      Read a directory entry.
- *
- * DESCRIPTION
- *      Optional - sys_getdents() will return -ENOTDIR if this routine is not
- *      available.
- *
- *      Refer to sys_getdents() in fs/readdir.c
- *      sys_getdents() -> .
- *
- * PRE-CONDITIONS
- *      filp                    Pointer to directory file.
- *      buf                     Pointer to directory entry buffer.
- *      filldir                 Pointer to filldir function.
- *
- * POST-CONDITIONS
- *      <return>                >=0 on success.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
-
-int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
-{
-        struct inode *dir = filp->f_path.dentry->d_inode;
-        int result;
-
-        lock_kernel();
-
-        if (filp->f_pos == 0) {
-                if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < 0) {
-                        unlock_kernel();
-                        return 0;
-                }
-                filp->f_pos++;
-        }
-
-        result = do_udf_readdir(dir, filp, filldir, dirent);
-        unlock_kernel();
-        return result;
-}
-
-static int
-do_udf_readdir(struct inode *dir, struct file *filp, filldir_t filldir,
-               void *dirent)
+static int do_udf_readdir(struct inode *dir, struct file *filp,
+                          filldir_t filldir, void *dirent)
 {
         struct udf_fileident_bh fibh;
         struct fileIdentDesc *fi = NULL;
         struct fileIdentDesc cfi;
         int block, iblock;
-        loff_t nf_pos = filp->f_pos - 1;
+        loff_t nf_pos = (filp->f_pos - 1) << 2;
         int flen;
         char fname[UDF_NAME_LEN];
         char *nameptr;
         uint16_t liu;
         uint8_t lfi;
-        loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+        loff_t size = udf_ext0_offset(dir) + dir->i_size;
         struct buffer_head *tmp, *bha[16];
         kernel_lb_addr eloc;
         uint32_t elen;
@@ -117,23 +57,26 @@ do_udf_readdir(struct inode *dir, struct file *filp, filldir_t filldir,
         int i, num;
         unsigned int dt_type;
         struct extent_position epos = { NULL, 0, {0, 0} };
+        struct udf_inode_info *iinfo;
 
         if (nf_pos >= size)
                 return 0;
 
         if (nf_pos == 0)
-                nf_pos = (udf_ext0_offset(dir) >> 2);
+                nf_pos = udf_ext0_offset(dir);
 
-        fibh.soffset = fibh.eoffset = (nf_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        fibh.soffset = fibh.eoffset = nf_pos & (dir->i_sb->s_blocksize - 1);
+        iinfo = UDF_I(dir);
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
                 fibh.sbh = fibh.ebh = NULL;
-        } else if (inode_bmap(dir, nf_pos >> (dir->i_sb->s_blocksize_bits - 2),
+        } else if (inode_bmap(dir, nf_pos >> dir->i_sb->s_blocksize_bits,
                               &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
                 block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
                 if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
-                        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+                        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                                 epos.offset -= sizeof(short_ad);
-                        else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+                        else if (iinfo->i_alloc_type ==
+                                        ICBTAG_FLAG_AD_LONG)
                                 epos.offset -= sizeof(long_ad);
                 } else {
                         offset = 0;
@@ -168,7 +111,7 @@ do_udf_readdir(struct inode *dir, struct file *filp, filldir_t filldir,
         }
 
         while (nf_pos < size) {
-                filp->f_pos = nf_pos + 1;
+                filp->f_pos = (nf_pos >> 2) + 1;
 
                 fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc,
                                         &elen, &offset);
@@ -235,7 +178,7 @@ do_udf_readdir(struct inode *dir, struct file *filp, filldir_t filldir,
                 }
         } /* end while */
 
-        filp->f_pos = nf_pos + 1;
+        filp->f_pos = (nf_pos >> 2) + 1;
 
         if (fibh.sbh != fibh.ebh)
                 brelse(fibh.ebh);
@@ -244,3 +187,57 @@ do_udf_readdir(struct inode *dir, struct file *filp, filldir_t filldir,
 
         return 0;
 }
+
+/*
+ * udf_readdir
+ *
+ * PURPOSE
+ *      Read a directory entry.
+ *
+ * DESCRIPTION
+ *      Optional - sys_getdents() will return -ENOTDIR if this routine is not
+ *      available.
+ *
+ *      Refer to sys_getdents() in fs/readdir.c
+ *      sys_getdents() -> .
+ *
+ * PRE-CONDITIONS
+ *      filp                    Pointer to directory file.
+ *      buf                     Pointer to directory entry buffer.
+ *      filldir                 Pointer to filldir function.
+ *
+ * POST-CONDITIONS
+ *      <return>                >=0 on success.
+ *
+ * HISTORY
+ *      July 1, 1997 - Andrew E. Mileski
+ *      Written, tested, and released.
+ */
+
+static int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+        struct inode *dir = filp->f_path.dentry->d_inode;
+        int result;
+
+        lock_kernel();
+
+        if (filp->f_pos == 0) {
+                if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < 0) {
+                        unlock_kernel();
+                        return 0;
+                }
+                filp->f_pos++;
+        }
+
+        result = do_udf_readdir(dir, filp, filldir, dirent);
+        unlock_kernel();
+        return result;
+}
+
+/* readdir and lookup functions */
+const struct file_operations udf_dir_operations = {
+        .read                   = generic_read_dir,
+        .readdir                = udf_readdir,
+        .ioctl                  = udf_ioctl,
+        .fsync                  = udf_fsync_file,
+};
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
index ff8c08fd7bf5..2820f8fcf4cc 100644
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -19,7 +19,7 @@
 #include <linux/buffer_head.h>
 
 #if 0
-static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
+static uint8_t *udf_filead_read(struct inode *dir, uint8_t *tmpad,
                                 uint8_t ad_size, kernel_lb_addr fe_loc,
                                 int *pos, int *offset, struct buffer_head **bh,
                                 int *error)
@@ -45,7 +45,8 @@ static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
                 block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos);
                 if (!block)
                         return NULL;
-                if (!(*bh = udf_tread(dir->i_sb, block)))
+                *bh = udf_tread(dir->i_sb, block);
+                if (!*bh)
                         return NULL;
         } else if (*offset > dir->i_sb->s_blocksize) {
                 ad = tmpad;
@@ -57,10 +58,12 @@ static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
                 block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos);
                 if (!block)
                         return NULL;
-                if (!((*bh) = udf_tread(dir->i_sb, block)))
+                (*bh) = udf_tread(dir->i_sb, block);
+                if (!*bh)
                         return NULL;
 
-                memcpy((uint8_t *)ad + remainder, (*bh)->b_data, ad_size - remainder);
+                memcpy((uint8_t *)ad + remainder, (*bh)->b_data,
+                        ad_size - remainder);
                 *offset = ad_size - remainder;
         }
 
@@ -68,29 +71,31 @@ static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
 }
 #endif
 
-struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
+struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
                                          struct udf_fileident_bh *fibh,
                                          struct fileIdentDesc *cfi,
                                          struct extent_position *epos,
-                                         kernel_lb_addr * eloc, uint32_t * elen,
-                                         sector_t * offset)
+                                         kernel_lb_addr *eloc, uint32_t *elen,
+                                         sector_t *offset)
 {
         struct fileIdentDesc *fi;
         int i, num, block;
         struct buffer_head *tmp, *bha[16];
+        struct udf_inode_info *iinfo = UDF_I(dir);
 
         fibh->soffset = fibh->eoffset;
 
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
-                fi = udf_get_fileident(UDF_I_DATA(dir) -
-                                       (UDF_I_EFE(dir) ?
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+                fi = udf_get_fileident(iinfo->i_ext.i_data -
+                                       (iinfo->i_efe ?
                                         sizeof(struct extendedFileEntry) :
                                         sizeof(struct fileEntry)),
-                                       dir->i_sb->s_blocksize, &(fibh->eoffset));
+                                       dir->i_sb->s_blocksize,
+                                       &(fibh->eoffset));
                 if (!fi)
                         return NULL;
 
-                *nf_pos += ((fibh->eoffset - fibh->soffset) >> 2);
+                *nf_pos += fibh->eoffset - fibh->soffset;
 
                 memcpy((uint8_t *)cfi, (uint8_t *)fi,
                        sizeof(struct fileIdentDesc));
@@ -100,6 +105,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
 
         if (fibh->eoffset == dir->i_sb->s_blocksize) {
                 int lextoffset = epos->offset;
+                unsigned char blocksize_bits = dir->i_sb->s_blocksize_bits;
 
                 if (udf_next_aext(dir, epos, eloc, elen, 1) !=
                     (EXT_RECORDED_ALLOCATED >> 30))
@@ -109,24 +115,27 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
 
                 (*offset)++;
 
-                if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen)
+                if ((*offset << blocksize_bits) >= *elen)
                         *offset = 0;
                 else
                         epos->offset = lextoffset;
 
                 brelse(fibh->sbh);
-                if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block)))
+                fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
+                if (!fibh->sbh)
                         return NULL;
                 fibh->soffset = fibh->eoffset = 0;
 
-                if (!(*offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9)) - 1))) {
-                        i = 16 >> (dir->i_sb->s_blocksize_bits - 9);
-                        if (i + *offset > (*elen >> dir->i_sb->s_blocksize_bits))
-                                i = (*elen >> dir->i_sb->s_blocksize_bits)-*offset;
+                if (!(*offset & ((16 >> (blocksize_bits - 9)) - 1))) {
+                        i = 16 >> (blocksize_bits - 9);
+                        if (i + *offset > (*elen >> blocksize_bits))
+                                i = (*elen >> blocksize_bits)-*offset;
                         for (num = 0; i > 0; i--) {
-                                block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset + i);
+                                block = udf_get_lb_pblock(dir->i_sb, *eloc,
+                                                          *offset + i);
                                 tmp = udf_tgetblk(dir->i_sb, block);
-                                if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
+                                if (tmp && !buffer_uptodate(tmp) &&
+                                                !buffer_locked(tmp))
                                         bha[num++] = tmp;
                                 else
                                         brelse(tmp);
@@ -148,7 +157,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
         if (!fi)
                 return NULL;
 
-        *nf_pos += ((fibh->eoffset - fibh->soffset) >> 2);
+        *nf_pos += fibh->eoffset - fibh->soffset;
 
         if (fibh->eoffset <= dir->i_sb->s_blocksize) {
                 memcpy((uint8_t *)cfi, (uint8_t *)fi,
@@ -172,20 +181,23 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
                 fibh->soffset -= dir->i_sb->s_blocksize;
                 fibh->eoffset -= dir->i_sb->s_blocksize;
 
-                if (!(fibh->ebh = udf_tread(dir->i_sb, block)))
+                fibh->ebh = udf_tread(dir->i_sb, block);
+                if (!fibh->ebh)
                         return NULL;
 
                 if (sizeof(struct fileIdentDesc) > -fibh->soffset) {
                         int fi_len;
 
                         memcpy((uint8_t *)cfi, (uint8_t *)fi, -fibh->soffset);
-                        memcpy((uint8_t *)cfi - fibh->soffset, fibh->ebh->b_data,
+                        memcpy((uint8_t *)cfi - fibh->soffset,
+                               fibh->ebh->b_data,
                                sizeof(struct fileIdentDesc) + fibh->soffset);
 
-                        fi_len = (sizeof(struct fileIdentDesc) + cfi->lengthFileIdent +
+                        fi_len = (sizeof(struct fileIdentDesc) +
+                                  cfi->lengthFileIdent +
                                   le16_to_cpu(cfi->lengthOfImpUse) + 3) & ~3;
 
-                        *nf_pos += ((fi_len - (fibh->eoffset - fibh->soffset)) >> 2);
+                        *nf_pos += fi_len - (fibh->eoffset - fibh->soffset);
                         fibh->eoffset = fibh->soffset + fi_len;
                 } else {
                         memcpy((uint8_t *)cfi, (uint8_t *)fi,
@@ -210,11 +222,10 @@ struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset)
 
         ptr = buffer;
 
-        if ((*offset > 0) && (*offset < bufsize)) {
+        if ((*offset > 0) && (*offset < bufsize))
                 ptr += *offset;
-        }
         fi = (struct fileIdentDesc *)ptr;
-        if (le16_to_cpu(fi->descTag.tagIdent) != TAG_IDENT_FID) {
+        if (fi->descTag.tagIdent != cpu_to_le16(TAG_IDENT_FID)) {
                 udf_debug("0x%x != TAG_IDENT_FID\n",
                           le16_to_cpu(fi->descTag.tagIdent));
                 udf_debug("offset: %u sizeof: %lu bufsize: %u\n",
@@ -222,12 +233,11 @@ struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset)
                           bufsize);
                 return NULL;
         }
-        if ((*offset + sizeof(struct fileIdentDesc)) > bufsize) {
+        if ((*offset + sizeof(struct fileIdentDesc)) > bufsize)
                 lengthThisIdent = sizeof(struct fileIdentDesc);
-        } else {
+        else
                 lengthThisIdent = sizeof(struct fileIdentDesc) +
                         fi->lengthFileIdent + le16_to_cpu(fi->lengthOfImpUse);
-        }
 
         /* we need to figure padding, too! */
         padlen = lengthThisIdent % UDF_NAME_PAD;
@@ -252,17 +262,17 @@ static extent_ad *udf_get_fileextent(void *buffer, int bufsize, int *offset)
 
         fe = (struct fileEntry *)buffer;
 
-        if (le16_to_cpu(fe->descTag.tagIdent) != TAG_IDENT_FE) {
+        if (fe->descTag.tagIdent != cpu_to_le16(TAG_IDENT_FE)) {
                 udf_debug("0x%x != TAG_IDENT_FE\n",
                           le16_to_cpu(fe->descTag.tagIdent));
                 return NULL;
         }
 
-        ptr = (uint8_t *)(fe->extendedAttr) + le32_to_cpu(fe->lengthExtendedAttr);
+        ptr = (uint8_t *)(fe->extendedAttr) +
+                le32_to_cpu(fe->lengthExtendedAttr);
 
-        if ((*offset > 0) && (*offset < le32_to_cpu(fe->lengthAllocDescs))) {
+        if ((*offset > 0) && (*offset < le32_to_cpu(fe->lengthAllocDescs)))
                 ptr += *offset;
-        }
 
         ext = (extent_ad *)ptr;
 
@@ -271,7 +281,7 @@ static extent_ad *udf_get_fileextent(void *buffer, int bufsize, int *offset)
 }
 #endif
 
-short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset,
+short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, uint32_t *offset,
                               int inc)
 {
         short_ad *sa;
@@ -281,17 +291,20 @@ short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset,
                 return NULL;
         }
 
-        if ((*offset < 0) || ((*offset + sizeof(short_ad)) > maxoffset))
-                return NULL;
-        else if ((sa = (short_ad *)ptr)->extLength == 0)
+        if ((*offset + sizeof(short_ad)) > maxoffset)
                 return NULL;
+        else {
+                sa = (short_ad *)ptr;
+                if (sa->extLength == 0)
+                        return NULL;
+        }
 
         if (inc)
                 *offset += sizeof(short_ad);
         return sa;
 }
 
-long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, int *offset, int inc)
+long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, uint32_t *offset, int inc)
 {
         long_ad *la;
 
@@ -300,10 +313,13 @@ long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, int *offset, int inc)
                 return NULL;
         }
 
-        if ((*offset < 0) || ((*offset + sizeof(long_ad)) > maxoffset))
-                return NULL;
-        else if ((la = (long_ad *)ptr)->extLength == 0)
+        if ((*offset + sizeof(long_ad)) > maxoffset)
                 return NULL;
+        else {
+                la = (long_ad *)ptr;
+                if (la->extLength == 0)
+                        return NULL;
+        }
 
         if (inc)
                 *offset += sizeof(long_ad);
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 7c7a1b39d56c..97c71ae7c689 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -45,12 +45,13 @@ static int udf_adinicb_readpage(struct file *file, struct page *page)
 {
         struct inode *inode = page->mapping->host;
         char *kaddr;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         BUG_ON(!PageLocked(page));
 
         kaddr = kmap(page);
         memset(kaddr, 0, PAGE_CACHE_SIZE);
-        memcpy(kaddr, UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), inode->i_size);
+        memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr, inode->i_size);
         flush_dcache_page(page);
         SetPageUptodate(page);
         kunmap(page);
@@ -59,15 +60,17 @@ static int udf_adinicb_readpage(struct file *file, struct page *page)
         return 0;
 }
 
-static int udf_adinicb_writepage(struct page *page, struct writeback_control *wbc)
+static int udf_adinicb_writepage(struct page *page,
+                                 struct writeback_control *wbc)
 {
         struct inode *inode = page->mapping->host;
         char *kaddr;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         BUG_ON(!PageLocked(page));
 
         kaddr = kmap(page);
-        memcpy(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), kaddr, inode->i_size);
+        memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr, inode->i_size);
         mark_inode_dirty(inode);
         SetPageUptodate(page);
         kunmap(page);
@@ -84,9 +87,10 @@ static int udf_adinicb_write_end(struct file *file,
         struct inode *inode = mapping->host;
         unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
         char *kaddr;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         kaddr = kmap_atomic(page, KM_USER0);
-        memcpy(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset,
+        memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr + offset,
                 kaddr + offset, copied);
         kunmap_atomic(kaddr, KM_USER0);
 
@@ -109,25 +113,27 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
         struct inode *inode = file->f_path.dentry->d_inode;
         int err, pos;
         size_t count = iocb->ki_left;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
                 if (file->f_flags & O_APPEND)
                         pos = inode->i_size;
                 else
                         pos = ppos;
 
-                if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
+                if (inode->i_sb->s_blocksize <
+                                (udf_file_entry_alloc_offset(inode) +
                                                 pos + count)) {
                         udf_expand_file_adinicb(inode, pos + count, &err);
-                        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
+                        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
                                 udf_debug("udf_expand_adinicb: err=%d\n", err);
                                 return err;
                         }
                 } else {
                         if (pos + count > inode->i_size)
-                                UDF_I_LENALLOC(inode) = pos + count;
+                                iinfo->i_lenAlloc = pos + count;
                         else
-                                UDF_I_LENALLOC(inode) = inode->i_size;
+                                iinfo->i_lenAlloc = inode->i_size;
                 }
         }
 
@@ -191,23 +197,28 @@ int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 
         switch (cmd) {
         case UDF_GETVOLIDENT:
-                return copy_to_user((char __user *)arg,
-                                    UDF_SB_VOLIDENT(inode->i_sb), 32) ? -EFAULT : 0;
+                if (copy_to_user((char __user *)arg,
+                                 UDF_SB(inode->i_sb)->s_volume_ident, 32))
+                        return -EFAULT;
+                else
+                        return 0;
         case UDF_RELOCATE_BLOCKS:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EACCES;
                 if (get_user(old_block, (long __user *)arg))
                         return -EFAULT;
-                if ((result = udf_relocate_blocks(inode->i_sb,
-                                                  old_block, &new_block)) == 0)
+                result = udf_relocate_blocks(inode->i_sb,
+                                                old_block, &new_block);
+                if (result == 0)
                         result = put_user(new_block, (long __user *)arg);
                 return result;
         case UDF_GETEASIZE:
-                result = put_user(UDF_I_LENEATTR(inode), (int __user *)arg);
+                result = put_user(UDF_I(inode)->i_lenEAttr, (int __user *)arg);
                 break;
         case UDF_GETEABLOCK:
-                result = copy_to_user((char __user *)arg, UDF_I_DATA(inode),
-                                      UDF_I_LENEATTR(inode)) ? -EFAULT : 0;
+                result = copy_to_user((char __user *)arg,
+                                      UDF_I(inode)->i_ext.i_data,
+                                      UDF_I(inode)->i_lenEAttr) ? -EFAULT : 0;
                 break;
         }
 
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 636d8f613929..84360315aca2 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -43,19 +43,21 @@ void udf_free_inode(struct inode *inode)
         clear_inode(inode);
 
         mutex_lock(&sbi->s_alloc_mutex);
-        if (sbi->s_lvidbh) {
+        if (sbi->s_lvid_bh) {
+                struct logicalVolIntegrityDescImpUse *lvidiu =
+                                                        udf_sb_lvidiu(sbi);
                 if (S_ISDIR(inode->i_mode))
-                        UDF_SB_LVIDIU(sb)->numDirs =
-                                cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) - 1);
+                        lvidiu->numDirs =
+                                cpu_to_le32(le32_to_cpu(lvidiu->numDirs) - 1);
                 else
-                        UDF_SB_LVIDIU(sb)->numFiles =
-                                cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) - 1);
+                        lvidiu->numFiles =
+                                cpu_to_le32(le32_to_cpu(lvidiu->numFiles) - 1);
 
-                mark_buffer_dirty(sbi->s_lvidbh);
+                mark_buffer_dirty(sbi->s_lvid_bh);
         }
         mutex_unlock(&sbi->s_alloc_mutex);
 
-        udf_free_blocks(sb, NULL, UDF_I_LOCATION(inode), 0, 1);
+        udf_free_blocks(sb, NULL, UDF_I(inode)->i_location, 0, 1);
 }
 
 struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
@@ -64,7 +66,9 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
         struct udf_sb_info *sbi = UDF_SB(sb);
         struct inode *inode;
         int block;
-        uint32_t start = UDF_I_LOCATION(dir).logicalBlockNum;
+        uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
+        struct udf_inode_info *iinfo;
+        struct udf_inode_info *dinfo = UDF_I(dir);
 
         inode = new_inode(sb);
 
@@ -74,13 +78,15 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
         }
         *err = -ENOSPC;
 
-        UDF_I_UNIQUE(inode) = 0;
-        UDF_I_LENEXTENTS(inode) = 0;
-        UDF_I_NEXT_ALLOC_BLOCK(inode) = 0;
-        UDF_I_NEXT_ALLOC_GOAL(inode) = 0;
-        UDF_I_STRAT4096(inode) = 0;
+        iinfo = UDF_I(inode);
+        iinfo->i_unique = 0;
+        iinfo->i_lenExtents = 0;
+        iinfo->i_next_alloc_block = 0;
+        iinfo->i_next_alloc_goal = 0;
+        iinfo->i_strat4096 = 0;
 
-        block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum,
+        block = udf_new_block(dir->i_sb, NULL,
+                              dinfo->i_location.partitionReferenceNum,
                               start, err);
         if (*err) {
                 iput(inode);
@@ -88,21 +94,27 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
         }
 
         mutex_lock(&sbi->s_alloc_mutex);
-        if (UDF_SB_LVIDBH(sb)) {
+        if (sbi->s_lvid_bh) {
+                struct logicalVolIntegrityDesc *lvid =
+                        (struct logicalVolIntegrityDesc *)
+                        sbi->s_lvid_bh->b_data;
+                struct logicalVolIntegrityDescImpUse *lvidiu =
+                                                        udf_sb_lvidiu(sbi);
                 struct logicalVolHeaderDesc *lvhd;
                 uint64_t uniqueID;
-                lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(sb)->logicalVolContentsUse);
+                lvhd = (struct logicalVolHeaderDesc *)
+                                (lvid->logicalVolContentsUse);
                 if (S_ISDIR(mode))
-                        UDF_SB_LVIDIU(sb)->numDirs =
-                                cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + 1);
+                        lvidiu->numDirs =
+                                cpu_to_le32(le32_to_cpu(lvidiu->numDirs) + 1);
                 else
-                        UDF_SB_LVIDIU(sb)->numFiles =
-                                cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + 1);
-                UDF_I_UNIQUE(inode) = uniqueID = le64_to_cpu(lvhd->uniqueID);
+                        lvidiu->numFiles =
+                                cpu_to_le32(le32_to_cpu(lvidiu->numFiles) + 1);
+                iinfo->i_unique = uniqueID = le64_to_cpu(lvhd->uniqueID);
                 if (!(++uniqueID & 0x00000000FFFFFFFFUL))
                         uniqueID += 16;
                 lvhd->uniqueID = cpu_to_le64(uniqueID);
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+                mark_buffer_dirty(sbi->s_lvid_bh);
         }
         inode->i_mode = mode;
         inode->i_uid = current->fsuid;
@@ -114,35 +126,41 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
                 inode->i_gid = current->fsgid;
         }
 
-        UDF_I_LOCATION(inode).logicalBlockNum = block;
-        UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
-        inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0);
+        iinfo->i_location.logicalBlockNum = block;
+        iinfo->i_location.partitionReferenceNum =
+                                dinfo->i_location.partitionReferenceNum;
+        inode->i_ino = udf_get_lb_pblock(sb, iinfo->i_location, 0);
         inode->i_blocks = 0;
-        UDF_I_LENEATTR(inode) = 0;
-        UDF_I_LENALLOC(inode) = 0;
-        UDF_I_USE(inode) = 0;
+        iinfo->i_lenEAttr = 0;
+        iinfo->i_lenAlloc = 0;
+        iinfo->i_use = 0;
         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
-                UDF_I_EFE(inode) = 1;
-                UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE);
-                UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL);
+                iinfo->i_efe = 1;
+                if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
+                        sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
+                iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
+                                            sizeof(struct extendedFileEntry),
+                                            GFP_KERNEL);
         } else {
-                UDF_I_EFE(inode) = 0;
-                UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL);
+                iinfo->i_efe = 0;
+                iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
+                                            sizeof(struct fileEntry),
+                                            GFP_KERNEL);
         }
-        if (!UDF_I_DATA(inode)) {
+        if (!iinfo->i_ext.i_data) {
                 iput(inode);
                 *err = -ENOMEM;
                 mutex_unlock(&sbi->s_alloc_mutex);
                 return NULL;
         }
         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
-                UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
+                iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
         else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
-                UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+                iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
         else
-                UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+                iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
         inode->i_mtime = inode->i_atime = inode->i_ctime =
-                UDF_I_CRTIME(inode) = current_fs_time(inode->i_sb);
+                iinfo->i_crtime = current_fs_time(inode->i_sb);
         insert_inode_hash(inode);
         mark_inode_dirty(inode);
         mutex_unlock(&sbi->s_alloc_mutex);
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 6ff8151984cf..24cfa55d0fdc 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -19,7 +19,8 @@
  *  10/04/98 dgb  Added rudimentary directory functions
  *  10/07/98      Fully working udf_block_map! It works!
  *  11/25/98      bmap altered to better support extents
- *  12/06/98 blf  partition support in udf_iget, udf_block_map and udf_read_inode
+ *  12/06/98 blf  partition support in udf_iget, udf_block_map
+ *                and udf_read_inode
  *  12/12/98      rewrote udf_block_map to handle next extents and descs across
  *                block boundaries (which is not actually allowed)
  *  12/20/98      added support for strategy 4096
@@ -51,7 +52,7 @@ static int udf_update_inode(struct inode *, int);
 static void udf_fill_inode(struct inode *, struct buffer_head *);
 static int udf_alloc_i_data(struct inode *inode, size_t size);
 static struct buffer_head *inode_getblk(struct inode *, sector_t, int *,
-                                        long *, int *);
+                                        sector_t *, int *);
 static int8_t udf_insert_aext(struct inode *, struct extent_position,
                               kernel_lb_addr, uint32_t);
 static void udf_split_extents(struct inode *, int *, int, int,
@@ -111,16 +112,18 @@ no_delete:
  */
 void udf_clear_inode(struct inode *inode)
 {
+        struct udf_inode_info *iinfo;
         if (!(inode->i_sb->s_flags & MS_RDONLY)) {
                 lock_kernel();
                 /* Discard preallocation for directories, symlinks, etc. */
                 udf_discard_prealloc(inode);
                 udf_truncate_tail_extent(inode);
                 unlock_kernel();
-                write_inode_now(inode, 1);
+                write_inode_now(inode, 0);
         }
-        kfree(UDF_I_DATA(inode));
-        UDF_I_DATA(inode) = NULL;
+        iinfo = UDF_I(inode);
+        kfree(iinfo->i_ext.i_data);
+        iinfo->i_ext.i_data = NULL;
 }
 
 static int udf_writepage(struct page *page, struct writeback_control *wbc)
@@ -160,6 +163,7 @@ void udf_expand_file_adinicb(struct inode *inode, int newsize, int *err)
 {
         struct page *page;
         char *kaddr;
+        struct udf_inode_info *iinfo = UDF_I(inode);
         struct writeback_control udf_wbc = {
                 .sync_mode = WB_SYNC_NONE,
                 .nr_to_write = 1,
@@ -168,11 +172,11 @@ void udf_expand_file_adinicb(struct inode *inode, int newsize, int *err)
         /* from now on we have normal address_space methods */
         inode->i_data.a_ops = &udf_aops;
 
-        if (!UDF_I_LENALLOC(inode)) {
+        if (!iinfo->i_lenAlloc) {
                 if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
-                        UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+                        iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
                 else
-                        UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+                        iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
                 mark_inode_dirty(inode);
                 return;
         }
@@ -182,21 +186,21 @@ void udf_expand_file_adinicb(struct inode *inode, int newsize, int *err)
 
         if (!PageUptodate(page)) {
                 kaddr = kmap(page);
-                memset(kaddr + UDF_I_LENALLOC(inode), 0x00,
-                       PAGE_CACHE_SIZE - UDF_I_LENALLOC(inode));
-                memcpy(kaddr, UDF_I_DATA(inode) + UDF_I_LENEATTR(inode),
-                       UDF_I_LENALLOC(inode));
+                memset(kaddr + iinfo->i_lenAlloc, 0x00,
+                       PAGE_CACHE_SIZE - iinfo->i_lenAlloc);
+                memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr,
+                        iinfo->i_lenAlloc);
                 flush_dcache_page(page);
                 SetPageUptodate(page);
                 kunmap(page);
         }
-        memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0x00,
-               UDF_I_LENALLOC(inode));
-        UDF_I_LENALLOC(inode) = 0;
+        memset(iinfo->i_ext.i_data + iinfo->i_lenEAttr, 0x00,
+               iinfo->i_lenAlloc);
+        iinfo->i_lenAlloc = 0;
         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
-                UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+                iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
         else
-                UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+                iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
 
         inode->i_data.a_ops->writepage(page, &udf_wbc);
         page_cache_release(page);
@@ -215,9 +219,10 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
         struct extent_position epos;
 
         struct udf_fileident_bh sfibh, dfibh;
-        loff_t f_pos = udf_ext0_offset(inode) >> 2;
-        int size = (udf_ext0_offset(inode) + inode->i_size) >> 2;
+        loff_t f_pos = udf_ext0_offset(inode);
+        int size = udf_ext0_offset(inode) + inode->i_size;
         struct fileIdentDesc cfi, *sfi, *dfi;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
                 alloctype = ICBTAG_FLAG_AD_SHORT;
@@ -225,19 +230,20 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
                 alloctype = ICBTAG_FLAG_AD_LONG;
 
         if (!inode->i_size) {
-                UDF_I_ALLOCTYPE(inode) = alloctype;
+                iinfo->i_alloc_type = alloctype;
                 mark_inode_dirty(inode);
                 return NULL;
         }
 
         /* alloc block, and copy data to it */
         *block = udf_new_block(inode->i_sb, inode,
-                               UDF_I_LOCATION(inode).partitionReferenceNum,
-                               UDF_I_LOCATION(inode).logicalBlockNum, err);
+                               iinfo->i_location.partitionReferenceNum,
+                               iinfo->i_location.logicalBlockNum, err);
         if (!(*block))
                 return NULL;
         newblock = udf_get_pblock(inode->i_sb, *block,
-                                  UDF_I_LOCATION(inode).partitionReferenceNum, 0);
+                                  iinfo->i_location.partitionReferenceNum,
+                                0);
         if (!newblock)
                 return NULL;
         dbh = udf_tgetblk(inode->i_sb, newblock);
@@ -249,39 +255,44 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
         unlock_buffer(dbh);
         mark_buffer_dirty_inode(dbh, inode);
 
-        sfibh.soffset = sfibh.eoffset = (f_pos & ((inode->i_sb->s_blocksize - 1) >> 2)) << 2;
+        sfibh.soffset = sfibh.eoffset =
+                        f_pos & (inode->i_sb->s_blocksize - 1);
         sfibh.sbh = sfibh.ebh = NULL;
         dfibh.soffset = dfibh.eoffset = 0;
         dfibh.sbh = dfibh.ebh = dbh;
-        while ((f_pos < size)) {
-                UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
-                sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL, NULL, NULL, NULL);
+        while (f_pos < size) {
+                iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
+                sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL,
+                                         NULL, NULL, NULL);
                 if (!sfi) {
                         brelse(dbh);
                         return NULL;
                 }
-                UDF_I_ALLOCTYPE(inode) = alloctype;
+                iinfo->i_alloc_type = alloctype;
                 sfi->descTag.tagLocation = cpu_to_le32(*block);
                 dfibh.soffset = dfibh.eoffset;
                 dfibh.eoffset += (sfibh.eoffset - sfibh.soffset);
                 dfi = (struct fileIdentDesc *)(dbh->b_data + dfibh.soffset);
                 if (udf_write_fi(inode, sfi, dfi, &dfibh, sfi->impUse,
-                                 sfi->fileIdent + le16_to_cpu(sfi->lengthOfImpUse))) {
-                        UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
+                                 sfi->fileIdent +
+                                        le16_to_cpu(sfi->lengthOfImpUse))) {
+                        iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
                         brelse(dbh);
                         return NULL;
                 }
         }
         mark_buffer_dirty_inode(dbh, inode);
 
-        memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0, UDF_I_LENALLOC(inode));
-        UDF_I_LENALLOC(inode) = 0;
+        memset(iinfo->i_ext.i_data + iinfo->i_lenEAttr, 0,
+                iinfo->i_lenAlloc);
+        iinfo->i_lenAlloc = 0;
         eloc.logicalBlockNum = *block;
-        eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
-        elen = inode->i_size;
-        UDF_I_LENEXTENTS(inode) = elen;
+        eloc.partitionReferenceNum =
+                                iinfo->i_location.partitionReferenceNum;
+        elen = inode->i_sb->s_blocksize;
+        iinfo->i_lenExtents = elen;
         epos.bh = NULL;
-        epos.block = UDF_I_LOCATION(inode);
+        epos.block = iinfo->i_location;
         epos.offset = udf_file_entry_alloc_offset(inode);
         udf_add_aext(inode, &epos, eloc, elen, 0);
         /* UniqueID stuff */
@@ -296,7 +307,8 @@ static int udf_get_block(struct inode *inode, sector_t block,
 {
         int err, new;
         struct buffer_head *bh;
-        unsigned long phys;
+        sector_t phys = 0;
+        struct udf_inode_info *iinfo;
 
         if (!create) {
                 phys = udf_block_map(inode, block);
@@ -314,9 +326,10 @@ static int udf_get_block(struct inode *inode, sector_t block,
         if (block < 0)
                 goto abort_negative;
 
-        if (block == UDF_I_NEXT_ALLOC_BLOCK(inode) + 1) {
-                UDF_I_NEXT_ALLOC_BLOCK(inode)++;
-                UDF_I_NEXT_ALLOC_GOAL(inode)++;
+        iinfo = UDF_I(inode);
+        if (block == iinfo->i_next_alloc_block + 1) {
+                iinfo->i_next_alloc_block++;
+                iinfo->i_next_alloc_goal++;
         }
 
         err = 0;
@@ -366,32 +379,35 @@ static struct buffer_head *udf_getblk(struct inode *inode, long block,
 
 /* Extend the file by 'blocks' blocks, return the number of extents added */
 int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
-                    kernel_long_ad * last_ext, sector_t blocks)
+                    kernel_long_ad *last_ext, sector_t blocks)
 {
         sector_t add;
         int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
         struct super_block *sb = inode->i_sb;
         kernel_lb_addr prealloc_loc = {};
         int prealloc_len = 0;
+        struct udf_inode_info *iinfo;
 
         /* The previous extent is fake and we should not extend by anything
          * - there's nothing to do... */
         if (!blocks && fake)
                 return 0;
 
+        iinfo = UDF_I(inode);
         /* Round the last extent up to a multiple of block size */
         if (last_ext->extLength & (sb->s_blocksize - 1)) {
                 last_ext->extLength =
                         (last_ext->extLength & UDF_EXTENT_FLAG_MASK) |
                         (((last_ext->extLength & UDF_EXTENT_LENGTH_MASK) +
                           sb->s_blocksize - 1) & ~(sb->s_blocksize - 1));
-                UDF_I_LENEXTENTS(inode) =
-                        (UDF_I_LENEXTENTS(inode) + sb->s_blocksize - 1) &
+                iinfo->i_lenExtents =
+                        (iinfo->i_lenExtents + sb->s_blocksize - 1) &
                         ~(sb->s_blocksize - 1);
         }
 
         /* Last extent are just preallocated blocks? */
-        if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_ALLOCATED) {
+        if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==
+                                                EXT_NOT_RECORDED_ALLOCATED) {
                 /* Save the extent so that we can reattach it to the end */
                 prealloc_loc = last_ext->extLocation;
                 prealloc_len = last_ext->extLength;
@@ -399,13 +415,15 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
                 last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
                         (last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
                 last_ext->extLocation.logicalBlockNum = 0;
-                last_ext->extLocation.partitionReferenceNum = 0;
+                last_ext->extLocation.partitionReferenceNum = 0;
         }
 
         /* Can we merge with the previous extent? */
-        if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_NOT_ALLOCATED) {
-                add = ((1 << 30) - sb->s_blocksize - (last_ext->extLength &
-                                                      UDF_EXTENT_LENGTH_MASK)) >> sb->s_blocksize_bits;
+        if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==
+                                        EXT_NOT_RECORDED_NOT_ALLOCATED) {
+                add = ((1 << 30) - sb->s_blocksize -
+                        (last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >>
+                        sb->s_blocksize_bits;
                 if (add > blocks)
                         add = blocks;
                 blocks -= add;
@@ -416,9 +434,9 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
                 udf_add_aext(inode, last_pos, last_ext->extLocation,
                              last_ext->extLength, 1);
                 count++;
-        } else {
-                udf_write_aext(inode, last_pos, last_ext->extLocation, last_ext->extLength, 1);
-        }
+        } else
+                udf_write_aext(inode, last_pos, last_ext->extLocation,
+                                last_ext->extLength, 1);
 
         /* Managed to do everything necessary? */
         if (!blocks)
@@ -426,9 +444,10 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
 
         /* All further extents will be NOT_RECORDED_NOT_ALLOCATED */
         last_ext->extLocation.logicalBlockNum = 0;
-        last_ext->extLocation.partitionReferenceNum = 0;
+        last_ext->extLocation.partitionReferenceNum = 0;
         add = (1 << (30-sb->s_blocksize_bits)) - 1;
-        last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | (add << sb->s_blocksize_bits);
+        last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
+                                (add << sb->s_blocksize_bits);
 
         /* Create enough extents to cover the whole hole */
         while (blocks > add) {
@@ -450,7 +469,8 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
 out:
         /* Do we have some preallocated blocks saved? */
         if (prealloc_len) {
-                if (udf_add_aext(inode, last_pos, prealloc_loc, prealloc_len, 1) == -1)
+                if (udf_add_aext(inode, last_pos, prealloc_loc,
+                                 prealloc_len, 1) == -1)
                         return -1;
                 last_ext->extLocation = prealloc_loc;
                 last_ext->extLength = prealloc_len;
@@ -458,9 +478,9 @@ out:
         }
 
         /* last_pos should point to the last written extent... */
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 last_pos->offset -= sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 last_pos->offset -= sizeof(long_ad);
         else
                 return -1;
@@ -469,7 +489,7 @@ out:
 }
 
 static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
-                                        int *err, long *phys, int *new)
+                                        int *err, sector_t *phys, int *new)
 {
         static sector_t last_block;
         struct buffer_head *result = NULL;
@@ -483,11 +503,12 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
         uint32_t newblocknum, newblock;
         sector_t offset = 0;
         int8_t etype;
-        int goal = 0, pgoal = UDF_I_LOCATION(inode).logicalBlockNum;
+        struct udf_inode_info *iinfo = UDF_I(inode);
+        int goal = 0, pgoal = iinfo->i_location.logicalBlockNum;
         int lastblock = 0;
 
         prev_epos.offset = udf_file_entry_alloc_offset(inode);
-        prev_epos.block = UDF_I_LOCATION(inode);
+        prev_epos.block = iinfo->i_location;
         prev_epos.bh = NULL;
         cur_epos = next_epos = prev_epos;
         b_off = (loff_t)block << inode->i_sb->s_blocksize_bits;
@@ -515,7 +536,8 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
                 prev_epos.offset = cur_epos.offset;
                 cur_epos.offset = next_epos.offset;
 
-                if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 1)) == -1)
+                etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 1);
+                if (etype == -1)
                         break;
 
                 c = !c;
@@ -569,9 +591,11 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
                         startnum = 1;
                 } else {
                         /* Create a fake extent when there's not one */
-                        memset(&laarr[0].extLocation, 0x00, sizeof(kernel_lb_addr));
+                        memset(&laarr[0].extLocation, 0x00,
+                                sizeof(kernel_lb_addr));
                         laarr[0].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED;
-                        /* Will udf_extend_file() create real extent from a fake one? */
+                        /* Will udf_extend_file() create real extent from
+                           a fake one? */
                         startnum = (offset > 0);
                 }
                 /* Create extents for the hole between EOF and offset */
@@ -589,14 +613,16 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
                 offset = 0;
                 count += ret;
                 /* We are not covered by a preallocated extent? */
-                if ((laarr[0].extLength & UDF_EXTENT_FLAG_MASK) != EXT_NOT_RECORDED_ALLOCATED) {
+                if ((laarr[0].extLength & UDF_EXTENT_FLAG_MASK) !=
+                                                EXT_NOT_RECORDED_ALLOCATED) {
                         /* Is there any real extent? - otherwise we overwrite
                          * the fake one... */
                         if (count)
                                 c = !c;
                         laarr[c].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
                                 inode->i_sb->s_blocksize;
-                        memset(&laarr[c].extLocation, 0x00, sizeof(kernel_lb_addr));
+                        memset(&laarr[c].extLocation, 0x00,
+                                sizeof(kernel_lb_addr));
                         count++;
                         endnum++;
                 }
@@ -605,7 +631,8 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
         } else {
                 endnum = startnum = ((count > 2) ? 2 : count);
 
-                /* if the current extent is in position 0, swap it with the previous */
+                /* if the current extent is in position 0,
+                   swap it with the previous */
                 if (!c && count != 1) {
                         laarr[2] = laarr[0];
                         laarr[0] = laarr[1];
@@ -613,44 +640,47 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
                         c = 1;
                 }
 
-                /* if the current block is located in an extent, read the next extent */
-                if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 0)) != -1) {
+                /* if the current block is located in an extent,
+                   read the next extent */
+                etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 0);
+                if (etype != -1) {
                         laarr[c + 1].extLength = (etype << 30) | elen;
                         laarr[c + 1].extLocation = eloc;
                         count++;
                         startnum++;
                         endnum++;
-                } else {
+                } else
                         lastblock = 1;
-                }
         }
 
         /* if the current extent is not recorded but allocated, get the
          * block in the extent corresponding to the requested block */
-        if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
+        if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
                 newblocknum = laarr[c].extLocation.logicalBlockNum + offset;
-        } else { /* otherwise, allocate a new block */
-                if (UDF_I_NEXT_ALLOC_BLOCK(inode) == block)
-                        goal = UDF_I_NEXT_ALLOC_GOAL(inode);
+        else { /* otherwise, allocate a new block */
+                if (iinfo->i_next_alloc_block == block)
+                        goal = iinfo->i_next_alloc_goal;
 
                 if (!goal) {
-                        if (!(goal = pgoal))
-                                goal = UDF_I_LOCATION(inode).logicalBlockNum + 1;
+                        if (!(goal = pgoal)) /* XXX: what was intended here? */
+                                goal = iinfo->i_location.logicalBlockNum + 1;
                 }
 
-                if (!(newblocknum = udf_new_block(inode->i_sb, inode,
-                                                  UDF_I_LOCATION(inode).partitionReferenceNum,
-                                                  goal, err))) {
+                newblocknum = udf_new_block(inode->i_sb, inode,
+                                iinfo->i_location.partitionReferenceNum,
+                                goal, err);
+                if (!newblocknum) {
                         brelse(prev_epos.bh);
                         *err = -ENOSPC;
                         return NULL;
                 }
-                UDF_I_LENEXTENTS(inode) += inode->i_sb->s_blocksize;
+                iinfo->i_lenExtents += inode->i_sb->s_blocksize;
         }
 
-        /* if the extent the requsted block is located in contains multiple blocks,
-         * split the extent into at most three extents. blocks prior to requested
-         * block, requested block, and blocks after requested block */
+        /* if the extent the requsted block is located in contains multiple
+         * blocks, split the extent into at most three extents. blocks prior
+         * to requested block, requested block, and blocks after requested
+         * block */
         udf_split_extents(inode, &c, offset, newblocknum, laarr, &endnum);
 
 #ifdef UDF_PREALLOCATE
@@ -668,15 +698,15 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
 
         brelse(prev_epos.bh);
 
-        if (!(newblock = udf_get_pblock(inode->i_sb, newblocknum,
-                                        UDF_I_LOCATION(inode).partitionReferenceNum, 0))) {
+        newblock = udf_get_pblock(inode->i_sb, newblocknum,
+                                iinfo->i_location.partitionReferenceNum, 0);
+        if (!newblock)
                 return NULL;
-        }
         *phys = newblock;
         *err = 0;
         *new = 1;
-        UDF_I_NEXT_ALLOC_BLOCK(inode) = block;
-        UDF_I_NEXT_ALLOC_GOAL(inode) = newblocknum;
+        iinfo->i_next_alloc_block = block;
+        iinfo->i_next_alloc_goal = newblocknum;
         inode->i_ctime = current_fs_time(inode->i_sb);
 
         if (IS_SYNC(inode))
@@ -692,16 +722,20 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
                               kernel_long_ad laarr[EXTENT_MERGE_SIZE],
                               int *endnum)
 {
+        unsigned long blocksize = inode->i_sb->s_blocksize;
+        unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
+
         if ((laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30) ||
-            (laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
+            (laarr[*c].extLength >> 30) ==
+                                (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
                 int curr = *c;
                 int blen = ((laarr[curr].extLength & UDF_EXTENT_LENGTH_MASK) +
-                            inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+                            blocksize - 1) >> blocksize_bits;
                 int8_t etype = (laarr[curr].extLength >> 30);
 
-                if (blen == 1) {
+                if (blen == 1)
                         ;
-                } else if (!offset || blen == offset + 1) {
+                else if (!offset || blen == offset + 1) {
                         laarr[curr + 2] = laarr[curr + 1];
                         laarr[curr + 1] = laarr[curr];
                 } else {
@@ -711,15 +745,18 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
 
                 if (offset) {
                         if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
-                                udf_free_blocks(inode->i_sb, inode, laarr[curr].extLocation, 0, offset);
-                                laarr[curr].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
-                                        (offset << inode->i_sb->s_blocksize_bits);
+                                udf_free_blocks(inode->i_sb, inode,
+                                                laarr[curr].extLocation,
+                                                0, offset);
+                                laarr[curr].extLength =
+                                        EXT_NOT_RECORDED_NOT_ALLOCATED |
+                                        (offset << blocksize_bits);
                                 laarr[curr].extLocation.logicalBlockNum = 0;
-                                laarr[curr].extLocation.partitionReferenceNum = 0;
-                        } else {
+                                laarr[curr].extLocation.
+                                                partitionReferenceNum = 0;
+                        } else
                                 laarr[curr].extLength = (etype << 30) |
-                                        (offset << inode->i_sb->s_blocksize_bits);
-                        }
+                                        (offset << blocksize_bits);
                         curr++;
                         (*c)++;
                         (*endnum)++;
@@ -728,16 +765,17 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
                 laarr[curr].extLocation.logicalBlockNum = newblocknum;
                 if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
                         laarr[curr].extLocation.partitionReferenceNum =
-                                UDF_I_LOCATION(inode).partitionReferenceNum;
+                                UDF_I(inode)->i_location.partitionReferenceNum;
                 laarr[curr].extLength = EXT_RECORDED_ALLOCATED |
-                        inode->i_sb->s_blocksize;
+                        blocksize;
                 curr++;
 
                 if (blen != offset + 1) {
                         if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
-                                laarr[curr].extLocation.logicalBlockNum += (offset + 1);
+                                laarr[curr].extLocation.logicalBlockNum +=
+                                                                offset + 1;
                         laarr[curr].extLength = (etype << 30) |
-                                ((blen - (offset + 1)) << inode->i_sb->s_blocksize_bits);
+                                ((blen - (offset + 1)) << blocksize_bits);
                         curr++;
                         (*endnum)++;
                 }
@@ -756,69 +794,86 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
                 else
                         start = c;
         } else {
-                if ((laarr[c + 1].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
+                if ((laarr[c + 1].extLength >> 30) ==
+                                        (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
                         start = c + 1;
-                        length = currlength = (((laarr[c + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                                inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
-                } else {
+                        length = currlength =
+                                (((laarr[c + 1].extLength &
+                                        UDF_EXTENT_LENGTH_MASK) +
+                                inode->i_sb->s_blocksize - 1) >>
+                                inode->i_sb->s_blocksize_bits);
+                } else
                         start = c;
-                }
         }
 
         for (i = start + 1; i <= *endnum; i++) {
                 if (i == *endnum) {
                         if (lastblock)
                                 length += UDF_DEFAULT_PREALLOC_BLOCKS;
-                } else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
-                        length += (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                    inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
-                } else {
+                } else if ((laarr[i].extLength >> 30) ==
+                                (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
+                        length += (((laarr[i].extLength &
+                                                UDF_EXTENT_LENGTH_MASK) +
+                                    inode->i_sb->s_blocksize - 1) >>
+                                    inode->i_sb->s_blocksize_bits);
+                } else
                         break;
-                }
         }
 
         if (length) {
                 int next = laarr[start].extLocation.logicalBlockNum +
                         (((laarr[start].extLength & UDF_EXTENT_LENGTH_MASK) +
-                          inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+                          inode->i_sb->s_blocksize - 1) >>
+                          inode->i_sb->s_blocksize_bits);
                 int numalloc = udf_prealloc_blocks(inode->i_sb, inode,
-                                                   laarr[start].extLocation.partitionReferenceNum,
-                                                   next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ? length :
-                                                          UDF_DEFAULT_PREALLOC_BLOCKS) - currlength);
+                                laarr[start].extLocation.partitionReferenceNum,
+                                next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ?
+                                length : UDF_DEFAULT_PREALLOC_BLOCKS) -
+                                currlength);
                 if (numalloc)   {
-                        if (start == (c + 1)) {
+                        if (start == (c + 1))
                                 laarr[start].extLength +=
-                                        (numalloc << inode->i_sb->s_blocksize_bits);
-                        } else {
+                                        (numalloc <<
+                                         inode->i_sb->s_blocksize_bits);
+                        else {
                                 memmove(&laarr[c + 2], &laarr[c + 1],
                                         sizeof(long_ad) * (*endnum - (c + 1)));
                                 (*endnum)++;
                                 laarr[c + 1].extLocation.logicalBlockNum = next;
                                 laarr[c + 1].extLocation.partitionReferenceNum =
-                                        laarr[c].extLocation.partitionReferenceNum;
-                                laarr[c + 1].extLength = EXT_NOT_RECORDED_ALLOCATED |
-                                        (numalloc << inode->i_sb->s_blocksize_bits);
+                                        laarr[c].extLocation.
+                                                        partitionReferenceNum;
+                                laarr[c + 1].extLength =
+                                        EXT_NOT_RECORDED_ALLOCATED |
+                                        (numalloc <<
+                                         inode->i_sb->s_blocksize_bits);
                                 start = c + 1;
                         }
 
                         for (i = start + 1; numalloc && i < *endnum; i++) {
-                                int elen = ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                            inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+                                int elen = ((laarr[i].extLength &
+                                                UDF_EXTENT_LENGTH_MASK) +
+                                            inode->i_sb->s_blocksize - 1) >>
+                                            inode->i_sb->s_blocksize_bits;
 
                                 if (elen > numalloc) {
                                         laarr[i].extLength -=
-                                                (numalloc << inode->i_sb->s_blocksize_bits);
+                                                (numalloc <<
+                                                 inode->i_sb->s_blocksize_bits);
                                         numalloc = 0;
                                 } else {
                                         numalloc -= elen;
                                         if (*endnum > (i + 1))
-                                                memmove(&laarr[i], &laarr[i + 1],
-                                                        sizeof(long_ad) * (*endnum - (i + 1)));
+                                                memmove(&laarr[i],
+                                                        &laarr[i + 1],
+                                                        sizeof(long_ad) *
+                                                        (*endnum - (i + 1)));
                                         i--;
                                         (*endnum)--;
                                 }
                         }
-                        UDF_I_LENEXTENTS(inode) += numalloc << inode->i_sb->s_blocksize_bits;
+                        UDF_I(inode)->i_lenExtents +=
+                                numalloc << inode->i_sb->s_blocksize_bits;
                 }
         }
 }
@@ -828,70 +883,97 @@ static void udf_merge_extents(struct inode *inode,
                               int *endnum)
 {
         int i;
+        unsigned long blocksize = inode->i_sb->s_blocksize;
+        unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
 
         for (i = 0; i < (*endnum - 1); i++) {
-                if ((laarr[i].extLength >> 30) == (laarr[i + 1].extLength >> 30)) {
-                        if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) ||
-                            ((laarr[i + 1].extLocation.logicalBlockNum - laarr[i].extLocation.logicalBlockNum) ==
-                             (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                               inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits))) {
-                                if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                     (laarr[i + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                     inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
-                                        laarr[i + 1].extLength = (laarr[i + 1].extLength -
-                                                                  (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                                                  UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize - 1);
-                                        laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) +
-                                                (UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize;
-                                        laarr[i + 1].extLocation.logicalBlockNum =
-                                                laarr[i].extLocation.logicalBlockNum +
-                                                ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) >>
-                                                 inode->i_sb->s_blocksize_bits);
-                                } else {
-                                        laarr[i].extLength = laarr[i + 1].extLength +
-                                                (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                                  inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize - 1));
-                                        if (*endnum > (i + 2))
-                                                memmove(&laarr[i + 1], &laarr[i + 2],
-                                                        sizeof(long_ad) * (*endnum - (i + 2)));
-                                        i--;
-                                        (*endnum)--;
-                                }
+                kernel_long_ad *li /*l[i]*/ = &laarr[i];
+                kernel_long_ad *lip1 /*l[i plus 1]*/ = &laarr[i + 1];
+
+                if (((li->extLength >> 30) == (lip1->extLength >> 30)) &&
+                        (((li->extLength >> 30) ==
+                                (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) ||
+                        ((lip1->extLocation.logicalBlockNum -
+                          li->extLocation.logicalBlockNum) ==
+                        (((li->extLength & UDF_EXTENT_LENGTH_MASK) +
+                        blocksize - 1) >> blocksize_bits)))) {
+
+                        if (((li->extLength & UDF_EXTENT_LENGTH_MASK) +
+                                (lip1->extLength & UDF_EXTENT_LENGTH_MASK) +
+                                blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
+                                lip1->extLength = (lip1->extLength -
+                                                  (li->extLength &
+                                                   UDF_EXTENT_LENGTH_MASK) +
+                                                   UDF_EXTENT_LENGTH_MASK) &
+                                                        ~(blocksize - 1);
+                                li->extLength = (li->extLength &
+                                                 UDF_EXTENT_FLAG_MASK) +
+                                                (UDF_EXTENT_LENGTH_MASK + 1) -
+                                                blocksize;
+                                lip1->extLocation.logicalBlockNum =
+                                        li->extLocation.logicalBlockNum +
+                                        ((li->extLength &
+                                                UDF_EXTENT_LENGTH_MASK) >>
+                                                blocksize_bits);
+                        } else {
+                                li->extLength = lip1->extLength +
+                                        (((li->extLength &
+                                                UDF_EXTENT_LENGTH_MASK) +
+                                         blocksize - 1) & ~(blocksize - 1));
+                                if (*endnum > (i + 2))
+                                        memmove(&laarr[i + 1], &laarr[i + 2],
+                                                sizeof(long_ad) *
+                                                (*endnum - (i + 2)));
+                                i--;
+                                (*endnum)--;
                         }
-                } else if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) &&
-                           ((laarr[i + 1].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) {
-                        udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0,
-                                        ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                         inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
-                        laarr[i].extLocation.logicalBlockNum = 0;
-                        laarr[i].extLocation.partitionReferenceNum = 0;
-
-                        if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                             (laarr[i + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
-                             inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
-                                laarr[i + 1].extLength = (laarr[i + 1].extLength -
-                                                          (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                                          UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize - 1);
-                                laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) +
-                                        (UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize;
+                } else if (((li->extLength >> 30) ==
+                                (EXT_NOT_RECORDED_ALLOCATED >> 30)) &&
+                           ((lip1->extLength >> 30) ==
+                                (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) {
+                        udf_free_blocks(inode->i_sb, inode, li->extLocation, 0,
+                                        ((li->extLength &
+                                          UDF_EXTENT_LENGTH_MASK) +
+                                         blocksize - 1) >> blocksize_bits);
+                        li->extLocation.logicalBlockNum = 0;
+                        li->extLocation.partitionReferenceNum = 0;
+
+                        if (((li->extLength & UDF_EXTENT_LENGTH_MASK) +
+                             (lip1->extLength & UDF_EXTENT_LENGTH_MASK) +
+                             blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
+                                lip1->extLength = (lip1->extLength -
+                                                   (li->extLength &
+                                                   UDF_EXTENT_LENGTH_MASK) +
+                                                   UDF_EXTENT_LENGTH_MASK) &
+                                                   ~(blocksize - 1);
+                                li->extLength = (li->extLength &
+                                                 UDF_EXTENT_FLAG_MASK) +
+                                                (UDF_EXTENT_LENGTH_MASK + 1) -
+                                                blocksize;
                         } else {
-                                laarr[i].extLength = laarr[i + 1].extLength +
-                                        (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                          inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize - 1));
+                                li->extLength = lip1->extLength +
+                                        (((li->extLength &
+                                                UDF_EXTENT_LENGTH_MASK) +
+                                          blocksize - 1) & ~(blocksize - 1));
                                 if (*endnum > (i + 2))
                                         memmove(&laarr[i + 1], &laarr[i + 2],
-                                                sizeof(long_ad) * (*endnum - (i + 2)));
+                                                sizeof(long_ad) *
+                                                (*endnum - (i + 2)));
                                 i--;
                                 (*endnum)--;
                         }
-                } else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
-                        udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0,
-                                        ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
-                                         inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
-                        laarr[i].extLocation.logicalBlockNum = 0;
-                        laarr[i].extLocation.partitionReferenceNum = 0;
-                        laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) |
-                                EXT_NOT_RECORDED_NOT_ALLOCATED;
+                } else if ((li->extLength >> 30) ==
+                                        (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
+                        udf_free_blocks(inode->i_sb, inode,
+                                        li->extLocation, 0,
+                                        ((li->extLength &
+                                                UDF_EXTENT_LENGTH_MASK) +
+                                         blocksize - 1) >> blocksize_bits);
+                        li->extLocation.logicalBlockNum = 0;
+                        li->extLocation.partitionReferenceNum = 0;
+                        li->extLength = (li->extLength &
+                                                UDF_EXTENT_LENGTH_MASK) |
+                                                EXT_NOT_RECORDED_NOT_ALLOCATED;
                 }
         }
 }
@@ -953,6 +1035,7 @@ void udf_truncate(struct inode *inode)
 {
         int offset;
         int err;
+        struct udf_inode_info *iinfo;
 
         if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
               S_ISLNK(inode->i_mode)))
@@ -961,25 +1044,28 @@ void udf_truncate(struct inode *inode)
                 return;
 
         lock_kernel();
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
-                if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
-                                                inode->i_size)) {
+        iinfo = UDF_I(inode);
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+                if (inode->i_sb->s_blocksize <
+                                (udf_file_entry_alloc_offset(inode) +
+                                 inode->i_size)) {
                         udf_expand_file_adinicb(inode, inode->i_size, &err);
-                        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
-                                inode->i_size = UDF_I_LENALLOC(inode);
+                        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+                                inode->i_size = iinfo->i_lenAlloc;
                                 unlock_kernel();
                                 return;
-                        } else {
+                        } else
                                 udf_truncate_extents(inode);
-                        }
                 } else {
                         offset = inode->i_size & (inode->i_sb->s_blocksize - 1);
-                        memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset, 0x00,
-                               inode->i_sb->s_blocksize - offset - udf_file_entry_alloc_offset(inode));
-                        UDF_I_LENALLOC(inode) = inode->i_size;
+                        memset(iinfo->i_ext.i_data + iinfo->i_lenEAttr + offset,
+                                0x00, inode->i_sb->s_blocksize -
+                                offset - udf_file_entry_alloc_offset(inode));
+                        iinfo->i_lenAlloc = inode->i_size;
                 }
         } else {
-                block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block);
+                block_truncate_page(inode->i_mapping, inode->i_size,
+                                    udf_get_block);
                 udf_truncate_extents(inode);
         }
 
@@ -996,6 +1082,7 @@ static void __udf_read_inode(struct inode *inode)
         struct buffer_head *bh = NULL;
         struct fileEntry *fe;
         uint16_t ident;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         /*
          * Set defaults, but the inode is still incomplete!
@@ -1009,7 +1096,7 @@ static void __udf_read_inode(struct inode *inode)
          *      i_nlink = 1
          *      i_op = NULL;
          */
-        bh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 0, &ident);
+        bh = udf_read_ptagged(inode->i_sb, iinfo->i_location, 0, &ident);
         if (!bh) {
                 printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed !bh\n",
                        inode->i_ino);
@@ -1019,8 +1106,8 @@ static void __udf_read_inode(struct inode *inode)
 
         if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
             ident != TAG_IDENT_USE) {
-                printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed ident=%d\n",
-                       inode->i_ino, ident);
+                printk(KERN_ERR "udf: udf_read_inode(ino %ld) "
+                                "failed ident=%d\n", inode->i_ino, ident);
                 brelse(bh);
                 make_bad_inode(inode);
                 return;
@@ -1028,11 +1115,12 @@ static void __udf_read_inode(struct inode *inode)
 
         fe = (struct fileEntry *)bh->b_data;
 
-        if (le16_to_cpu(fe->icbTag.strategyType) == 4096) {
+        if (fe->icbTag.strategyType == cpu_to_le16(4096)) {
                 struct buffer_head *ibh = NULL, *nbh = NULL;
                 struct indirectEntry *ie;
 
-                ibh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 1, &ident);
+                ibh = udf_read_ptagged(inode->i_sb, iinfo->i_location, 1,
+                                        &ident);
                 if (ident == TAG_IDENT_IE) {
                         if (ibh) {
                                 kernel_lb_addr loc;
@@ -1041,10 +1129,12 @@ static void __udf_read_inode(struct inode *inode)
                                 loc = lelb_to_cpu(ie->indirectICB.extLocation);
 
                                 if (ie->indirectICB.extLength &&
-                                    (nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident))) {
+                                    (nbh = udf_read_ptagged(inode->i_sb, loc, 0,
+                                                            &ident))) {
                                         if (ident == TAG_IDENT_FE ||
                                             ident == TAG_IDENT_EFE) {
-                                                memcpy(&UDF_I_LOCATION(inode), &loc,
+                                                memcpy(&iinfo->i_location,
+                                                       &loc,
                                                        sizeof(kernel_lb_addr));
                                                 brelse(bh);
                                                 brelse(ibh);
@@ -1062,7 +1152,7 @@ static void __udf_read_inode(struct inode *inode)
                 } else {
                         brelse(ibh);
                 }
-        } else if (le16_to_cpu(fe->icbTag.strategyType) != 4) {
+        } else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
                 printk(KERN_ERR "udf: unsupported strategy type: %d\n",
                        le16_to_cpu(fe->icbTag.strategyType));
                 brelse(bh);
@@ -1081,51 +1171,63 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
         time_t convtime;
         long convtime_usec;
         int offset;
+        struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         fe = (struct fileEntry *)bh->b_data;
         efe = (struct extendedFileEntry *)bh->b_data;
 
-        if (le16_to_cpu(fe->icbTag.strategyType) == 4)
-                UDF_I_STRAT4096(inode) = 0;
-        else /* if (le16_to_cpu(fe->icbTag.strategyType) == 4096) */
-                UDF_I_STRAT4096(inode) = 1;
-
-        UDF_I_ALLOCTYPE(inode) = le16_to_cpu(fe->icbTag.flags) & ICBTAG_FLAG_AD_MASK;
-        UDF_I_UNIQUE(inode) = 0;
-        UDF_I_LENEATTR(inode) = 0;
-        UDF_I_LENEXTENTS(inode) = 0;
-        UDF_I_LENALLOC(inode) = 0;
-        UDF_I_NEXT_ALLOC_BLOCK(inode) = 0;
-        UDF_I_NEXT_ALLOC_GOAL(inode) = 0;
-        if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_EFE) {
-                UDF_I_EFE(inode) = 1;
-                UDF_I_USE(inode) = 0;
-                if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry))) {
+        if (fe->icbTag.strategyType == cpu_to_le16(4))
+                iinfo->i_strat4096 = 0;
+        else /* if (fe->icbTag.strategyType == cpu_to_le16(4096)) */
+                iinfo->i_strat4096 = 1;
+
+        iinfo->i_alloc_type = le16_to_cpu(fe->icbTag.flags) &
+                                                        ICBTAG_FLAG_AD_MASK;
+        iinfo->i_unique = 0;
+        iinfo->i_lenEAttr = 0;
+        iinfo->i_lenExtents = 0;
+        iinfo->i_lenAlloc = 0;
+        iinfo->i_next_alloc_block = 0;
+        iinfo->i_next_alloc_goal = 0;
+        if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_EFE)) {
+                iinfo->i_efe = 1;
+                iinfo->i_use = 0;
+                if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+                                        sizeof(struct extendedFileEntry))) {
                         make_bad_inode(inode);
                         return;
                 }
-                memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry),
-                       inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
-        } else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE) {
-                UDF_I_EFE(inode) = 0;
-                UDF_I_USE(inode) = 0;
-                if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct fileEntry))) {
+                memcpy(iinfo->i_ext.i_data,
+                       bh->b_data + sizeof(struct extendedFileEntry),
+                       inode->i_sb->s_blocksize -
+                                        sizeof(struct extendedFileEntry));
+        } else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_FE)) {
+                iinfo->i_efe = 0;
+                iinfo->i_use = 0;
+                if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+                                                sizeof(struct fileEntry))) {
                         make_bad_inode(inode);
                         return;
                 }
-                memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry),
+                memcpy(iinfo->i_ext.i_data,
+                       bh->b_data + sizeof(struct fileEntry),
                        inode->i_sb->s_blocksize - sizeof(struct fileEntry));
-        } else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) {
-                UDF_I_EFE(inode) = 0;
-                UDF_I_USE(inode) = 1;
-                UDF_I_LENALLOC(inode) =
-                    le32_to_cpu(((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs);
-                if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry))) {
+        } else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_USE)) {
+                iinfo->i_efe = 0;
+                iinfo->i_use = 1;
+                iinfo->i_lenAlloc = le32_to_cpu(
+                                ((struct unallocSpaceEntry *)bh->b_data)->
+                                 lengthAllocDescs);
+                if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+                                        sizeof(struct unallocSpaceEntry))) {
                         make_bad_inode(inode);
                         return;
                 }
-                memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry),
-                       inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
+                memcpy(iinfo->i_ext.i_data,
+                       bh->b_data + sizeof(struct unallocSpaceEntry),
+                       inode->i_sb->s_blocksize -
+                                        sizeof(struct unallocSpaceEntry));
                 return;
         }
 
@@ -1146,12 +1248,12 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                 inode->i_nlink = 1;
 
         inode->i_size = le64_to_cpu(fe->informationLength);
-        UDF_I_LENEXTENTS(inode) = inode->i_size;
+        iinfo->i_lenExtents = inode->i_size;
 
         inode->i_mode = udf_convert_permissions(fe);
         inode->i_mode &= ~UDF_SB(inode->i_sb)->s_umask;
 
-        if (UDF_I_EFE(inode) == 0) {
+        if (iinfo->i_efe == 0) {
                 inode->i_blocks = le64_to_cpu(fe->logicalBlocksRecorded) <<
                         (inode->i_sb->s_blocksize_bits - 9);
 
@@ -1160,7 +1262,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                         inode->i_atime.tv_sec = convtime;
                         inode->i_atime.tv_nsec = convtime_usec * 1000;
                 } else {
-                        inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb);
+                        inode->i_atime = sbi->s_record_time;
                 }
 
                 if (udf_stamp_to_time(&convtime, &convtime_usec,
@@ -1168,7 +1270,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                         inode->i_mtime.tv_sec = convtime;
                         inode->i_mtime.tv_nsec = convtime_usec * 1000;
                 } else {
-                        inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb);
+                        inode->i_mtime = sbi->s_record_time;
                 }
 
                 if (udf_stamp_to_time(&convtime, &convtime_usec,
@@ -1176,13 +1278,13 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                         inode->i_ctime.tv_sec = convtime;
                         inode->i_ctime.tv_nsec = convtime_usec * 1000;
                 } else {
-                        inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb);
+                        inode->i_ctime = sbi->s_record_time;
                 }
 
-                UDF_I_UNIQUE(inode) = le64_to_cpu(fe->uniqueID);
-                UDF_I_LENEATTR(inode) = le32_to_cpu(fe->lengthExtendedAttr);
-                UDF_I_LENALLOC(inode) = le32_to_cpu(fe->lengthAllocDescs);
-                offset = sizeof(struct fileEntry) + UDF_I_LENEATTR(inode);
+                iinfo->i_unique = le64_to_cpu(fe->uniqueID);
+                iinfo->i_lenEAttr = le32_to_cpu(fe->lengthExtendedAttr);
+                iinfo->i_lenAlloc = le32_to_cpu(fe->lengthAllocDescs);
+                offset = sizeof(struct fileEntry) + iinfo->i_lenEAttr;
         } else {
                 inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
                     (inode->i_sb->s_blocksize_bits - 9);
@@ -1192,7 +1294,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                         inode->i_atime.tv_sec = convtime;
                         inode->i_atime.tv_nsec = convtime_usec * 1000;
                 } else {
-                        inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb);
+                        inode->i_atime = sbi->s_record_time;
                 }
 
                 if (udf_stamp_to_time(&convtime, &convtime_usec,
@@ -1200,15 +1302,15 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                         inode->i_mtime.tv_sec = convtime;
                         inode->i_mtime.tv_nsec = convtime_usec * 1000;
                 } else {
-                        inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb);
+                        inode->i_mtime = sbi->s_record_time;
                 }
 
                 if (udf_stamp_to_time(&convtime, &convtime_usec,
                                       lets_to_cpu(efe->createTime))) {
-                        UDF_I_CRTIME(inode).tv_sec = convtime;
-                        UDF_I_CRTIME(inode).tv_nsec = convtime_usec * 1000;
+                        iinfo->i_crtime.tv_sec = convtime;
+                        iinfo->i_crtime.tv_nsec = convtime_usec * 1000;
                 } else {
-                        UDF_I_CRTIME(inode) = UDF_SB_RECORDTIME(inode->i_sb);
+                        iinfo->i_crtime = sbi->s_record_time;
                 }
 
                 if (udf_stamp_to_time(&convtime, &convtime_usec,
@@ -1216,13 +1318,14 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                         inode->i_ctime.tv_sec = convtime;
                         inode->i_ctime.tv_nsec = convtime_usec * 1000;
                 } else {
-                        inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb);
+                        inode->i_ctime = sbi->s_record_time;
                 }
 
-                UDF_I_UNIQUE(inode) = le64_to_cpu(efe->uniqueID);
-                UDF_I_LENEATTR(inode) = le32_to_cpu(efe->lengthExtendedAttr);
-                UDF_I_LENALLOC(inode) = le32_to_cpu(efe->lengthAllocDescs);
-                offset = sizeof(struct extendedFileEntry) + UDF_I_LENEATTR(inode);
+                iinfo->i_unique = le64_to_cpu(efe->uniqueID);
+                iinfo->i_lenEAttr = le32_to_cpu(efe->lengthExtendedAttr);
+                iinfo->i_lenAlloc = le32_to_cpu(efe->lengthAllocDescs);
+                offset = sizeof(struct extendedFileEntry) +
+                                                        iinfo->i_lenEAttr;
         }
 
         switch (fe->icbTag.fileType) {
@@ -1235,7 +1338,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
         case ICBTAG_FILE_TYPE_REALTIME:
         case ICBTAG_FILE_TYPE_REGULAR:
         case ICBTAG_FILE_TYPE_UNDEF:
-                if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+                if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                         inode->i_data.a_ops = &udf_adinicb_aops;
                 else
                         inode->i_data.a_ops = &udf_aops;
@@ -1261,31 +1364,33 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                 inode->i_mode = S_IFLNK | S_IRWXUGO;
                 break;
         default:
-                printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown file type=%d\n",
-                       inode->i_ino, fe->icbTag.fileType);
+                printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown "
+                                "file type=%d\n", inode->i_ino,
+                                fe->icbTag.fileType);
                 make_bad_inode(inode);
                 return;
         }
         if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
-                struct deviceSpec *dsea = (struct deviceSpec *)udf_get_extendedattr(inode, 12, 1);
+                struct deviceSpec *dsea =
+                        (struct deviceSpec *)udf_get_extendedattr(inode, 12, 1);
                 if (dsea) {
                         init_special_inode(inode, inode->i_mode,
-                                           MKDEV(le32_to_cpu(dsea->majorDeviceIdent),
-                                                 le32_to_cpu(dsea->minorDeviceIdent)));
+                                MKDEV(le32_to_cpu(dsea->majorDeviceIdent),
+                                      le32_to_cpu(dsea->minorDeviceIdent)));
                         /* Developer ID ??? */
-                } else {
+                } else
                         make_bad_inode(inode);
-                }
         }
 }
 
 static int udf_alloc_i_data(struct inode *inode, size_t size)
 {
-        UDF_I_DATA(inode) = kmalloc(size, GFP_KERNEL);
+        struct udf_inode_info *iinfo = UDF_I(inode);
+        iinfo->i_ext.i_data = kmalloc(size, GFP_KERNEL);
 
-        if (!UDF_I_DATA(inode)) {
-                printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) no free memory\n",
-                       inode->i_ino);
+        if (!iinfo->i_ext.i_data) {
+                printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) "
+                                "no free memory\n", inode->i_ino);
                 return -ENOMEM;
         }
 
@@ -1301,12 +1406,12 @@ static mode_t udf_convert_permissions(struct fileEntry *fe)
         permissions = le32_to_cpu(fe->permissions);
         flags = le16_to_cpu(fe->icbTag.flags);
 
-        mode =  (( permissions      ) & S_IRWXO) |
-                (( permissions >> 2 ) & S_IRWXG) |
-                (( permissions >> 4 ) & S_IRWXU) |
-                (( flags & ICBTAG_FLAG_SETUID) ? S_ISUID : 0) |
-                (( flags & ICBTAG_FLAG_SETGID) ? S_ISGID : 0) |
-                (( flags & ICBTAG_FLAG_STICKY) ? S_ISVTX : 0);
+        mode =  ((permissions) & S_IRWXO) |
+                ((permissions >> 2) & S_IRWXG) |
+                ((permissions >> 4) & S_IRWXU) |
+                ((flags & ICBTAG_FLAG_SETUID) ? S_ISUID : 0) |
+                ((flags & ICBTAG_FLAG_SETGID) ? S_ISGID : 0) |
+                ((flags & ICBTAG_FLAG_STICKY) ? S_ISVTX : 0);
 
         return mode;
 }
@@ -1350,11 +1455,15 @@ static int udf_update_inode(struct inode *inode, int do_sync)
         uint32_t udfperms;
         uint16_t icbflags;
         uint16_t crclen;
-        int i;
         kernel_timestamp cpu_time;
         int err = 0;
+        struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
+        unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
-        bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0));
+        bh = udf_tread(inode->i_sb,
+                        udf_get_lb_pblock(inode->i_sb,
+                                          iinfo->i_location, 0));
         if (!bh) {
                 udf_debug("bread failure\n");
                 return -EIO;
@@ -1365,23 +1474,24 @@ static int udf_update_inode(struct inode *inode, int do_sync)
         fe = (struct fileEntry *)bh->b_data;
         efe = (struct extendedFileEntry *)bh->b_data;
 
-        if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) {
+        if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_USE)) {
                 struct unallocSpaceEntry *use =
                         (struct unallocSpaceEntry *)bh->b_data;
 
-                use->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
-                memcpy(bh->b_data + sizeof(struct unallocSpaceEntry), UDF_I_DATA(inode),
-                       inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
-                crclen = sizeof(struct unallocSpaceEntry) + UDF_I_LENALLOC(inode) - sizeof(tag);
-                use->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
+                use->lengthAllocDescs = cpu_to_le32(iinfo->i_lenAlloc);
+                memcpy(bh->b_data + sizeof(struct unallocSpaceEntry),
+                       iinfo->i_ext.i_data, inode->i_sb->s_blocksize -
+                                        sizeof(struct unallocSpaceEntry));
+                crclen = sizeof(struct unallocSpaceEntry) +
+                                iinfo->i_lenAlloc - sizeof(tag);
+                use->descTag.tagLocation = cpu_to_le32(
+                                                iinfo->i_location.
+                                                        logicalBlockNum);
                 use->descTag.descCRCLength = cpu_to_le16(crclen);
-                use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use + sizeof(tag), crclen, 0));
-
-                use->descTag.tagChecksum = 0;
-                for (i = 0; i < 16; i++) {
-                        if (i != 4)
-                                use->descTag.tagChecksum += ((uint8_t *)&(use->descTag))[i];
-                }
+                use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use +
+                                                           sizeof(tag), crclen,
+                                                           0));
+                use->descTag.tagChecksum = udf_tag_checksum(&use->descTag);
 
                 mark_buffer_dirty(bh);
                 brelse(bh);
@@ -1398,14 +1508,14 @@ static int udf_update_inode(struct inode *inode, int do_sync)
         else
                 fe->gid = cpu_to_le32(inode->i_gid);
 
-        udfperms =      ((inode->i_mode & S_IRWXO)     ) |
-                        ((inode->i_mode & S_IRWXG) << 2) |
-                        ((inode->i_mode & S_IRWXU) << 4);
+        udfperms = ((inode->i_mode & S_IRWXO)) |
+                   ((inode->i_mode & S_IRWXG) << 2) |
+                   ((inode->i_mode & S_IRWXU) << 4);
 
-        udfperms |=     (le32_to_cpu(fe->permissions) &
-                        (FE_PERM_O_DELETE | FE_PERM_O_CHATTR |
-                         FE_PERM_G_DELETE | FE_PERM_G_CHATTR |
-                         FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
+        udfperms |= (le32_to_cpu(fe->permissions) &
+                    (FE_PERM_O_DELETE | FE_PERM_O_CHATTR |
+                     FE_PERM_G_DELETE | FE_PERM_G_CHATTR |
+                     FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
         fe->permissions = cpu_to_le32(udfperms);
 
         if (S_ISDIR(inode->i_mode))
@@ -1426,8 +1536,9 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                                                      sizeof(regid), 12, 0x3);
                         dsea->attrType = cpu_to_le32(12);
                         dsea->attrSubtype = 1;
-                        dsea->attrLength = cpu_to_le32(sizeof(struct deviceSpec) +
-                                                       sizeof(regid));
+                        dsea->attrLength = cpu_to_le32(
+                                                sizeof(struct deviceSpec) +
+                                                sizeof(regid));
                         dsea->impUseLength = cpu_to_le32(sizeof(regid));
                 }
                 eid = (regid *)dsea->impUse;
@@ -1439,12 +1550,13 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                 dsea->minorDeviceIdent = cpu_to_le32(iminor(inode));
         }
 
-        if (UDF_I_EFE(inode) == 0) {
-                memcpy(bh->b_data + sizeof(struct fileEntry), UDF_I_DATA(inode),
+        if (iinfo->i_efe == 0) {
+                memcpy(bh->b_data + sizeof(struct fileEntry),
+                       iinfo->i_ext.i_data,
                        inode->i_sb->s_blocksize - sizeof(struct fileEntry));
                 fe->logicalBlocksRecorded = cpu_to_le64(
-                        (inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
-                        (inode->i_sb->s_blocksize_bits - 9));
+                        (inode->i_blocks + (1 << (blocksize_bits - 9)) - 1) >>
+                        (blocksize_bits - 9));
 
                 if (udf_time_to_stamp(&cpu_time, inode->i_atime))
                         fe->accessTime = cpu_to_lets(cpu_time);
@@ -1456,40 +1568,41 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                 strcpy(fe->impIdent.ident, UDF_ID_DEVELOPER);
                 fe->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
                 fe->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
-                fe->uniqueID = cpu_to_le64(UDF_I_UNIQUE(inode));
-                fe->lengthExtendedAttr = cpu_to_le32(UDF_I_LENEATTR(inode));
-                fe->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
+                fe->uniqueID = cpu_to_le64(iinfo->i_unique);
+                fe->lengthExtendedAttr = cpu_to_le32(iinfo->i_lenEAttr);
+                fe->lengthAllocDescs = cpu_to_le32(iinfo->i_lenAlloc);
                 fe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_FE);
                 crclen = sizeof(struct fileEntry);
         } else {
-                memcpy(bh->b_data + sizeof(struct extendedFileEntry), UDF_I_DATA(inode),
-                       inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
+                memcpy(bh->b_data + sizeof(struct extendedFileEntry),
+                       iinfo->i_ext.i_data,
+                       inode->i_sb->s_blocksize -
+                                        sizeof(struct extendedFileEntry));
                 efe->objectSize = cpu_to_le64(inode->i_size);
                 efe->logicalBlocksRecorded = cpu_to_le64(
-                        (inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
-                        (inode->i_sb->s_blocksize_bits - 9));
+                        (inode->i_blocks + (1 << (blocksize_bits - 9)) - 1) >>
+                        (blocksize_bits - 9));
 
-                if (UDF_I_CRTIME(inode).tv_sec > inode->i_atime.tv_sec ||
-                    (UDF_I_CRTIME(inode).tv_sec == inode->i_atime.tv_sec &&
-                     UDF_I_CRTIME(inode).tv_nsec > inode->i_atime.tv_nsec)) {
-                        UDF_I_CRTIME(inode) = inode->i_atime;
-                }
-                if (UDF_I_CRTIME(inode).tv_sec > inode->i_mtime.tv_sec ||
-                    (UDF_I_CRTIME(inode).tv_sec == inode->i_mtime.tv_sec &&
-                     UDF_I_CRTIME(inode).tv_nsec > inode->i_mtime.tv_nsec)) {
-                        UDF_I_CRTIME(inode) = inode->i_mtime;
-                }
-                if (UDF_I_CRTIME(inode).tv_sec > inode->i_ctime.tv_sec ||
-                    (UDF_I_CRTIME(inode).tv_sec == inode->i_ctime.tv_sec &&
-                     UDF_I_CRTIME(inode).tv_nsec > inode->i_ctime.tv_nsec)) {
-                        UDF_I_CRTIME(inode) = inode->i_ctime;
-                }
+                if (iinfo->i_crtime.tv_sec > inode->i_atime.tv_sec ||
+                    (iinfo->i_crtime.tv_sec == inode->i_atime.tv_sec &&
+                     iinfo->i_crtime.tv_nsec > inode->i_atime.tv_nsec))
+                        iinfo->i_crtime = inode->i_atime;
+
+                if (iinfo->i_crtime.tv_sec > inode->i_mtime.tv_sec ||
+                    (iinfo->i_crtime.tv_sec == inode->i_mtime.tv_sec &&
+                     iinfo->i_crtime.tv_nsec > inode->i_mtime.tv_nsec))
+                        iinfo->i_crtime = inode->i_mtime;
+
+                if (iinfo->i_crtime.tv_sec > inode->i_ctime.tv_sec ||
+                    (iinfo->i_crtime.tv_sec == inode->i_ctime.tv_sec &&
+                     iinfo->i_crtime.tv_nsec > inode->i_ctime.tv_nsec))
+                        iinfo->i_crtime = inode->i_ctime;
 
                 if (udf_time_to_stamp(&cpu_time, inode->i_atime))
                         efe->accessTime = cpu_to_lets(cpu_time);
                 if (udf_time_to_stamp(&cpu_time, inode->i_mtime))
                         efe->modificationTime = cpu_to_lets(cpu_time);
-                if (udf_time_to_stamp(&cpu_time, UDF_I_CRTIME(inode)))
+                if (udf_time_to_stamp(&cpu_time, iinfo->i_crtime))
                         efe->createTime = cpu_to_lets(cpu_time);
                 if (udf_time_to_stamp(&cpu_time, inode->i_ctime))
                         efe->attrTime = cpu_to_lets(cpu_time);
@@ -1498,13 +1611,13 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                 strcpy(efe->impIdent.ident, UDF_ID_DEVELOPER);
                 efe->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
                 efe->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
-                efe->uniqueID = cpu_to_le64(UDF_I_UNIQUE(inode));
-                efe->lengthExtendedAttr = cpu_to_le32(UDF_I_LENEATTR(inode));
-                efe->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
+                efe->uniqueID = cpu_to_le64(iinfo->i_unique);
+                efe->lengthExtendedAttr = cpu_to_le32(iinfo->i_lenEAttr);
+                efe->lengthAllocDescs = cpu_to_le32(iinfo->i_lenAlloc);
                 efe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EFE);
                 crclen = sizeof(struct extendedFileEntry);
         }
-        if (UDF_I_STRAT4096(inode)) {
+        if (iinfo->i_strat4096) {
                 fe->icbTag.strategyType = cpu_to_le16(4096);
                 fe->icbTag.strategyParameter = cpu_to_le16(1);
                 fe->icbTag.numEntries = cpu_to_le16(2);
@@ -1528,7 +1641,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
         else if (S_ISSOCK(inode->i_mode))
                 fe->icbTag.fileType = ICBTAG_FILE_TYPE_SOCKET;
 
-        icbflags =      UDF_I_ALLOCTYPE(inode) |
+        icbflags =      iinfo->i_alloc_type |
                         ((inode->i_mode & S_ISUID) ? ICBTAG_FLAG_SETUID : 0) |
                         ((inode->i_mode & S_ISGID) ? ICBTAG_FLAG_SETGID : 0) |
                         ((inode->i_mode & S_ISVTX) ? ICBTAG_FLAG_STICKY : 0) |
@@ -1537,29 +1650,28 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                                 ICBTAG_FLAG_SETGID | ICBTAG_FLAG_STICKY));
 
         fe->icbTag.flags = cpu_to_le16(icbflags);
-        if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200)
+        if (sbi->s_udfrev >= 0x0200)
                 fe->descTag.descVersion = cpu_to_le16(3);
         else
                 fe->descTag.descVersion = cpu_to_le16(2);
-        fe->descTag.tagSerialNum = cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb));
-        fe->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
-        crclen += UDF_I_LENEATTR(inode) + UDF_I_LENALLOC(inode) - sizeof(tag);
+        fe->descTag.tagSerialNum = cpu_to_le16(sbi->s_serial_number);
+        fe->descTag.tagLocation = cpu_to_le32(
+                                        iinfo->i_location.logicalBlockNum);
+        crclen += iinfo->i_lenEAttr + iinfo->i_lenAlloc -
+                                                                sizeof(tag);
         fe->descTag.descCRCLength = cpu_to_le16(crclen);
-        fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag), crclen, 0));
-
-        fe->descTag.tagChecksum = 0;
-        for (i = 0; i < 16; i++) {
-                if (i != 4)
-                        fe->descTag.tagChecksum += ((uint8_t *)&(fe->descTag))[i];
-        }
+        fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag),
+                                                  crclen, 0));
+        fe->descTag.tagChecksum = udf_tag_checksum(&fe->descTag);
 
         /* write the data blocks */
         mark_buffer_dirty(bh);
         if (do_sync) {
                 sync_dirty_buffer(bh);
                 if (buffer_req(bh) && !buffer_uptodate(bh)) {
-                        printk("IO error syncing udf inode [%s:%08lx]\n",
-                               inode->i_sb->s_id, inode->i_ino);
+                        printk(KERN_WARNING "IO error syncing udf inode "
+                                "[%s:%08lx]\n", inode->i_sb->s_id,
+                                inode->i_ino);
                         err = -EIO;
                 }
         }
@@ -1577,7 +1689,7 @@ struct inode *udf_iget(struct super_block *sb, kernel_lb_addr ino)
                 return NULL;
 
         if (inode->i_state & I_NEW) {
-                memcpy(&UDF_I_LOCATION(inode), &ino, sizeof(kernel_lb_addr));
+                memcpy(&UDF_I(inode)->i_location, &ino, sizeof(kernel_lb_addr));
                 __udf_read_inode(inode);
                 unlock_new_inode(inode);
         }
@@ -1585,7 +1697,8 @@ struct inode *udf_iget(struct super_block *sb, kernel_lb_addr ino)
         if (is_bad_inode(inode))
                 goto out_iput;
 
-        if (ino.logicalBlockNum >= UDF_SB_PARTLEN(sb, ino.partitionReferenceNum)) {
+        if (ino.logicalBlockNum >= UDF_SB(sb)->
+                        s_partmaps[ino.partitionReferenceNum].s_partition_len) {
                 udf_debug("block=%d, partition=%d out of range\n",
                           ino.logicalBlockNum, ino.partitionReferenceNum);
                 make_bad_inode(inode);
@@ -1599,7 +1712,7 @@ struct inode *udf_iget(struct super_block *sb, kernel_lb_addr ino)
         return NULL;
 }
 
-int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
+int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
                     kernel_lb_addr eloc, uint32_t elen, int inc)
 {
         int adsize;
@@ -1608,15 +1721,18 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
         struct allocExtDesc *aed;
         int8_t etype;
         uint8_t *ptr;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         if (!epos->bh)
-                ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
+                ptr = iinfo->i_ext.i_data + epos->offset -
+                        udf_file_entry_alloc_offset(inode) +
+                        iinfo->i_lenEAttr;
         else
                 ptr = epos->bh->b_data + epos->offset;
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 adsize = sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 adsize = sizeof(long_ad);
         else
                 return -1;
@@ -1627,15 +1743,16 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
                 int err, loffset;
                 kernel_lb_addr obloc = epos->block;
 
-                if (!(epos->block.logicalBlockNum = udf_new_block(inode->i_sb, NULL,
-                                                                  obloc.partitionReferenceNum,
-                                                                  obloc.logicalBlockNum, &err))) {
+                epos->block.logicalBlockNum = udf_new_block(inode->i_sb, NULL,
+                                                obloc.partitionReferenceNum,
+                                                obloc.logicalBlockNum, &err);
+                if (!epos->block.logicalBlockNum)
                         return -1;
-                }
-                if (!(nbh = udf_tgetblk(inode->i_sb, udf_get_lb_pblock(inode->i_sb,
-                                                                       epos->block, 0)))) {
+                nbh = udf_tgetblk(inode->i_sb, udf_get_lb_pblock(inode->i_sb,
+                                                                 epos->block,
+                                                                 0));
+                if (!nbh)
                         return -1;
-                }
                 lock_buffer(nbh);
                 memset(nbh->b_data, 0x00, inode->i_sb->s_blocksize);
                 set_buffer_uptodate(nbh);
@@ -1644,7 +1761,8 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
 
                 aed = (struct allocExtDesc *)(nbh->b_data);
                 if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT))
-                        aed->previousAllocExtLocation = cpu_to_le32(obloc.logicalBlockNum);
+                        aed->previousAllocExtLocation =
+                                        cpu_to_le32(obloc.logicalBlockNum);
                 if (epos->offset + adsize > inode->i_sb->s_blocksize) {
                         loffset = epos->offset;
                         aed->lengthAllocDescs = cpu_to_le32(adsize);
@@ -1661,24 +1779,26 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
                         if (epos->bh) {
                                 aed = (struct allocExtDesc *)epos->bh->b_data;
                                 aed->lengthAllocDescs =
-                                        cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
+                                        cpu_to_le32(le32_to_cpu(
+                                        aed->lengthAllocDescs) + adsize);
                         } else {
-                                UDF_I_LENALLOC(inode) += adsize;
+                                iinfo->i_lenAlloc += adsize;
                                 mark_inode_dirty(inode);
                         }
                 }
-                if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200)
+                if (UDF_SB(inode->i_sb)->s_udfrev >= 0x0200)
                         udf_new_tag(nbh->b_data, TAG_IDENT_AED, 3, 1,
                                     epos->block.logicalBlockNum, sizeof(tag));
                 else
                         udf_new_tag(nbh->b_data, TAG_IDENT_AED, 2, 1,
                                     epos->block.logicalBlockNum, sizeof(tag));
-                switch (UDF_I_ALLOCTYPE(inode)) {
+                switch (iinfo->i_alloc_type) {
                 case ICBTAG_FLAG_AD_SHORT:
                         sad = (short_ad *)sptr;
                         sad->extLength = cpu_to_le32(EXT_NEXT_EXTENT_ALLOCDECS |
                                                      inode->i_sb->s_blocksize);
-                        sad->extPosition = cpu_to_le32(epos->block.logicalBlockNum);
+                        sad->extPosition =
+                                cpu_to_le32(epos->block.logicalBlockNum);
                         break;
                 case ICBTAG_FLAG_AD_LONG:
                         lad = (long_ad *)sptr;
@@ -1690,10 +1810,11 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
                 }
                 if (epos->bh) {
                         if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
-                            UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+                            UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
                                 udf_update_tag(epos->bh->b_data, loffset);
                         else
-                                udf_update_tag(epos->bh->b_data, sizeof(struct allocExtDesc));
+                                udf_update_tag(epos->bh->b_data,
+                                                sizeof(struct allocExtDesc));
                         mark_buffer_dirty_inode(epos->bh, inode);
                         brelse(epos->bh);
                 } else {
@@ -1705,36 +1826,43 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
         etype = udf_write_aext(inode, epos, eloc, elen, inc);
 
         if (!epos->bh) {
-                UDF_I_LENALLOC(inode) += adsize;
+                iinfo->i_lenAlloc += adsize;
                 mark_inode_dirty(inode);
         } else {
                 aed = (struct allocExtDesc *)epos->bh->b_data;
                 aed->lengthAllocDescs =
-                        cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
-                if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
-                        udf_update_tag(epos->bh->b_data, epos->offset + (inc ? 0 : adsize));
+                        cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) +
+                                    adsize);
+                if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
+                                UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
+                        udf_update_tag(epos->bh->b_data,
+                                        epos->offset + (inc ? 0 : adsize));
                 else
-                        udf_update_tag(epos->bh->b_data, sizeof(struct allocExtDesc));
+                        udf_update_tag(epos->bh->b_data,
+                                        sizeof(struct allocExtDesc));
                 mark_buffer_dirty_inode(epos->bh, inode);
         }
 
         return etype;
 }
 
-int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
+int8_t udf_write_aext(struct inode *inode, struct extent_position *epos,
                       kernel_lb_addr eloc, uint32_t elen, int inc)
 {
         int adsize;
         uint8_t *ptr;
         short_ad *sad;
         long_ad *lad;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         if (!epos->bh)
-                ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
+                ptr = iinfo->i_ext.i_data + epos->offset -
+                        udf_file_entry_alloc_offset(inode) +
+                        iinfo->i_lenEAttr;
         else
                 ptr = epos->bh->b_data + epos->offset;
 
-        switch (UDF_I_ALLOCTYPE(inode)) {
+        switch (iinfo->i_alloc_type) {
         case ICBTAG_FLAG_AD_SHORT:
                 sad = (short_ad *)ptr;
                 sad->extLength = cpu_to_le32(elen);
@@ -1754,10 +1882,12 @@ int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
 
         if (epos->bh) {
                 if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
-                    UDF_SB_UDFREV(inode->i_sb) >= 0x0201) {
-                        struct allocExtDesc *aed = (struct allocExtDesc *)epos->bh->b_data;
+                    UDF_SB(inode->i_sb)->s_udfrev >= 0x0201) {
+                        struct allocExtDesc *aed =
+                                (struct allocExtDesc *)epos->bh->b_data;
                         udf_update_tag(epos->bh->b_data,
-                                       le32_to_cpu(aed->lengthAllocDescs) + sizeof(struct allocExtDesc));
+                                       le32_to_cpu(aed->lengthAllocDescs) +
+                                       sizeof(struct allocExtDesc));
                 }
                 mark_buffer_dirty_inode(epos->bh, inode);
         } else {
@@ -1770,19 +1900,21 @@ int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
         return (elen >> 30);
 }
 
-int8_t udf_next_aext(struct inode * inode, struct extent_position * epos,
-                     kernel_lb_addr * eloc, uint32_t * elen, int inc)
+int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
+                     kernel_lb_addr *eloc, uint32_t *elen, int inc)
 {
         int8_t etype;
 
         while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) ==
                (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
+                int block;
                 epos->block = *eloc;
                 epos->offset = sizeof(struct allocExtDesc);
                 brelse(epos->bh);
-                if (!(epos->bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, epos->block, 0)))) {
-                        udf_debug("reading block %d failed!\n",
-                                  udf_get_lb_pblock(inode->i_sb, epos->block, 0));
+                block = udf_get_lb_pblock(inode->i_sb, epos->block, 0);
+                epos->bh = udf_tread(inode->i_sb, block);
+                if (!epos->bh) {
+                        udf_debug("reading block %d failed!\n", block);
                         return -1;
                 }
         }
@@ -1790,47 +1922,55 @@ int8_t udf_next_aext(struct inode * inode, struct extent_position * epos,
         return etype;
 }
 
-int8_t udf_current_aext(struct inode * inode, struct extent_position * epos,
-                        kernel_lb_addr * eloc, uint32_t * elen, int inc)
+int8_t udf_current_aext(struct inode *inode, struct extent_position *epos,
+                        kernel_lb_addr *eloc, uint32_t *elen, int inc)
 {
         int alen;
         int8_t etype;
         uint8_t *ptr;
         short_ad *sad;
         long_ad *lad;
-
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
         if (!epos->bh) {
                 if (!epos->offset)
                         epos->offset = udf_file_entry_alloc_offset(inode);
-                ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
-                alen = udf_file_entry_alloc_offset(inode) + UDF_I_LENALLOC(inode);
+                ptr = iinfo->i_ext.i_data + epos->offset -
+                        udf_file_entry_alloc_offset(inode) +
+                        iinfo->i_lenEAttr;
+                alen = udf_file_entry_alloc_offset(inode) +
+                                                        iinfo->i_lenAlloc;
         } else {
                 if (!epos->offset)
                         epos->offset = sizeof(struct allocExtDesc);
                 ptr = epos->bh->b_data + epos->offset;
                 alen = sizeof(struct allocExtDesc) +
-                        le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->lengthAllocDescs);
+                        le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->
+                                                        lengthAllocDescs);
         }
 
-        switch (UDF_I_ALLOCTYPE(inode)) {
+        switch (iinfo->i_alloc_type) {
         case ICBTAG_FLAG_AD_SHORT:
-                if (!(sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc)))
+                sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc);
+                if (!sad)
                         return -1;
                 etype = le32_to_cpu(sad->extLength) >> 30;
                 eloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
-                eloc->partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+                eloc->partitionReferenceNum =
+                                iinfo->i_location.partitionReferenceNum;
                 *elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK;
                 break;
         case ICBTAG_FLAG_AD_LONG:
-                if (!(lad = udf_get_filelongad(ptr, alen, &epos->offset, inc)))
+                lad = udf_get_filelongad(ptr, alen, &epos->offset, inc);
+                if (!lad)
                         return -1;
                 etype = le32_to_cpu(lad->extLength) >> 30;
                 *eloc = lelb_to_cpu(lad->extLocation);
                 *elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
                 break;
         default:
-                udf_debug("alloc_type = %d unsupported\n", UDF_I_ALLOCTYPE(inode));
+                udf_debug("alloc_type = %d unsupported\n",
+                                iinfo->i_alloc_type);
                 return -1;
         }
 
@@ -1858,22 +1998,24 @@ static int8_t udf_insert_aext(struct inode *inode, struct extent_position epos,
         return (nelen >> 30);
 }
 
-int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
+int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
                        kernel_lb_addr eloc, uint32_t elen)
 {
         struct extent_position oepos;
         int adsize;
         int8_t etype;
         struct allocExtDesc *aed;
+        struct udf_inode_info *iinfo;
 
         if (epos.bh) {
                 get_bh(epos.bh);
                 get_bh(epos.bh);
         }
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+        iinfo = UDF_I(inode);
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 adsize = sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 adsize = sizeof(long_ad);
         else
                 adsize = 0;
@@ -1900,33 +2042,39 @@ int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
                 udf_write_aext(inode, &oepos, eloc, elen, 1);
                 udf_write_aext(inode, &oepos, eloc, elen, 1);
                 if (!oepos.bh) {
-                        UDF_I_LENALLOC(inode) -= (adsize * 2);
+                        iinfo->i_lenAlloc -= (adsize * 2);
                         mark_inode_dirty(inode);
                 } else {
                         aed = (struct allocExtDesc *)oepos.bh->b_data;
                         aed->lengthAllocDescs =
-                                cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - (2 * adsize));
+                                cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
+                                            (2 * adsize));
                         if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
-                            UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
-                                udf_update_tag(oepos.bh->b_data, oepos.offset - (2 * adsize));
+                            UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
+                                udf_update_tag(oepos.bh->b_data,
+                                                oepos.offset - (2 * adsize));
                         else
-                                udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc));
+                                udf_update_tag(oepos.bh->b_data,
+                                                sizeof(struct allocExtDesc));
                         mark_buffer_dirty_inode(oepos.bh, inode);
                 }
         } else {
                 udf_write_aext(inode, &oepos, eloc, elen, 1);
                 if (!oepos.bh) {
-                        UDF_I_LENALLOC(inode) -= adsize;
+                        iinfo->i_lenAlloc -= adsize;
                         mark_inode_dirty(inode);
                 } else {
                         aed = (struct allocExtDesc *)oepos.bh->b_data;
                         aed->lengthAllocDescs =
-                                cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - adsize);
+                                cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
+                                            adsize);
                         if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
-                            UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
-                                udf_update_tag(oepos.bh->b_data, epos.offset - adsize);
+                            UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
+                                udf_update_tag(oepos.bh->b_data,
+                                                epos.offset - adsize);
                         else
-                                udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc));
+                                udf_update_tag(oepos.bh->b_data,
+                                                sizeof(struct allocExtDesc));
                         mark_buffer_dirty_inode(oepos.bh, inode);
                 }
         }
@@ -1937,34 +2085,38 @@ int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
         return (elen >> 30);
 }
 
-int8_t inode_bmap(struct inode * inode, sector_t block,
-                  struct extent_position * pos, kernel_lb_addr * eloc,
-                  uint32_t * elen, sector_t * offset)
+int8_t inode_bmap(struct inode *inode, sector_t block,
+                  struct extent_position *pos, kernel_lb_addr *eloc,
+                  uint32_t *elen, sector_t *offset)
 {
+        unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
         loff_t lbcount = 0, bcount =
-            (loff_t) block << inode->i_sb->s_blocksize_bits;
+            (loff_t) block << blocksize_bits;
         int8_t etype;
+        struct udf_inode_info *iinfo;
 
         if (block < 0) {
                 printk(KERN_ERR "udf: inode_bmap: block < 0\n");
                 return -1;
         }
 
+        iinfo = UDF_I(inode);
         pos->offset = 0;
-        pos->block = UDF_I_LOCATION(inode);
+        pos->block = iinfo->i_location;
         pos->bh = NULL;
         *elen = 0;
 
         do {
-                if ((etype = udf_next_aext(inode, pos, eloc, elen, 1)) == -1) {
-                        *offset = (bcount - lbcount) >> inode->i_sb->s_blocksize_bits;
-                        UDF_I_LENEXTENTS(inode) = lbcount;
+                etype = udf_next_aext(inode, pos, eloc, elen, 1);
+                if (etype == -1) {
+                        *offset = (bcount - lbcount) >> blocksize_bits;
+                        iinfo->i_lenExtents = lbcount;
                         return -1;
                 }
                 lbcount += *elen;
         } while (lbcount <= bcount);
 
-        *offset = (bcount + *elen - lbcount) >> inode->i_sb->s_blocksize_bits;
+        *offset = (bcount + *elen - lbcount) >> blocksize_bits;
 
         return etype;
 }
@@ -1979,7 +2131,8 @@ long udf_block_map(struct inode *inode, sector_t block)
 
         lock_kernel();
 
-        if (inode_bmap(inode, block, &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30))
+        if (inode_bmap(inode, block, &epos, &eloc, &elen, &offset) ==
+                                                (EXT_RECORDED_ALLOCATED >> 30))
                 ret = udf_get_lb_pblock(inode->i_sb, eloc, offset);
         else
                 ret = 0;
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 15297deb5051..a1d6da0caf71 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -51,18 +51,18 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
         uint8_t *ea = NULL, *ad = NULL;
         int offset;
         uint16_t crclen;
-        int i;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
-        ea = UDF_I_DATA(inode);
-        if (UDF_I_LENEATTR(inode)) {
-                ad = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode);
+        ea = iinfo->i_ext.i_data;
+        if (iinfo->i_lenEAttr) {
+                ad = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
         } else {
                 ad = ea;
                 size += sizeof(struct extendedAttrHeaderDesc);
         }
 
         offset = inode->i_sb->s_blocksize - udf_file_entry_alloc_offset(inode) -
-                UDF_I_LENALLOC(inode);
+                iinfo->i_lenAlloc;
 
         /* TODO - Check for FreeEASpace */
 
@@ -70,69 +70,80 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
                 struct extendedAttrHeaderDesc *eahd;
                 eahd = (struct extendedAttrHeaderDesc *)ea;
 
-                if (UDF_I_LENALLOC(inode)) {
-                        memmove(&ad[size], ad, UDF_I_LENALLOC(inode));
-                }
+                if (iinfo->i_lenAlloc)
+                        memmove(&ad[size], ad, iinfo->i_lenAlloc);
 
-                if (UDF_I_LENEATTR(inode)) {
+                if (iinfo->i_lenEAttr) {
                         /* check checksum/crc */
-                        if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
-                            le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) {
+                        if (eahd->descTag.tagIdent !=
+                                        cpu_to_le16(TAG_IDENT_EAHD) ||
+                            le32_to_cpu(eahd->descTag.tagLocation) !=
+                                        iinfo->i_location.logicalBlockNum)
                                 return NULL;
-                        }
                 } else {
+                        struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
+
                         size -= sizeof(struct extendedAttrHeaderDesc);
-                        UDF_I_LENEATTR(inode) += sizeof(struct extendedAttrHeaderDesc);
+                        iinfo->i_lenEAttr +=
+                                sizeof(struct extendedAttrHeaderDesc);
                         eahd->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EAHD);
-                        if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200)
+                        if (sbi->s_udfrev >= 0x0200)
                                 eahd->descTag.descVersion = cpu_to_le16(3);
                         else
                                 eahd->descTag.descVersion = cpu_to_le16(2);
-                        eahd->descTag.tagSerialNum = cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb));
-                        eahd->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
+                        eahd->descTag.tagSerialNum =
+                                        cpu_to_le16(sbi->s_serial_number);
+                        eahd->descTag.tagLocation = cpu_to_le32(
+                                        iinfo->i_location.logicalBlockNum);
                         eahd->impAttrLocation = cpu_to_le32(0xFFFFFFFF);
                         eahd->appAttrLocation = cpu_to_le32(0xFFFFFFFF);
                 }
 
-                offset = UDF_I_LENEATTR(inode);
+                offset = iinfo->i_lenEAttr;
                 if (type < 2048) {
-                        if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) {
-                                uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
+                        if (le32_to_cpu(eahd->appAttrLocation) <
+                                        iinfo->i_lenEAttr) {
+                                uint32_t aal =
+                                        le32_to_cpu(eahd->appAttrLocation);
                                 memmove(&ea[offset - aal + size],
                                         &ea[aal], offset - aal);
                                 offset -= aal;
-                                eahd->appAttrLocation = cpu_to_le32(aal + size);
+                                eahd->appAttrLocation =
+                                                cpu_to_le32(aal + size);
                         }
-                        if (le32_to_cpu(eahd->impAttrLocation) < UDF_I_LENEATTR(inode)) {
-                                uint32_t ial = le32_to_cpu(eahd->impAttrLocation);
+                        if (le32_to_cpu(eahd->impAttrLocation) <
+                                        iinfo->i_lenEAttr) {
+                                uint32_t ial =
+                                        le32_to_cpu(eahd->impAttrLocation);
                                 memmove(&ea[offset - ial + size],
                                         &ea[ial], offset - ial);
                                 offset -= ial;
-                                eahd->impAttrLocation = cpu_to_le32(ial + size);
+                                eahd->impAttrLocation =
+                                                cpu_to_le32(ial + size);
                         }
                 } else if (type < 65536) {
-                        if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) {
-                                uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
+                        if (le32_to_cpu(eahd->appAttrLocation) <
+                                        iinfo->i_lenEAttr) {
+                                uint32_t aal =
+                                        le32_to_cpu(eahd->appAttrLocation);
                                 memmove(&ea[offset - aal + size],
                                         &ea[aal], offset - aal);
                                 offset -= aal;
-                                eahd->appAttrLocation = cpu_to_le32(aal + size);
+                                eahd->appAttrLocation =
+                                                cpu_to_le32(aal + size);
                         }
                 }
                 /* rewrite CRC + checksum of eahd */
                 crclen = sizeof(struct extendedAttrHeaderDesc) - sizeof(tag);
                 eahd->descTag.descCRCLength = cpu_to_le16(crclen);
                 eahd->descTag.descCRC = cpu_to_le16(udf_crc((char *)eahd +
-                                                            sizeof(tag), crclen, 0));
-                eahd->descTag.tagChecksum = 0;
-                for (i = 0; i < 16; i++)
-                        if (i != 4)
-                                eahd->descTag.tagChecksum += ((uint8_t *)&(eahd->descTag))[i];
-                UDF_I_LENEATTR(inode) += size;
+                                                sizeof(tag), crclen, 0));
+                eahd->descTag.tagChecksum = udf_tag_checksum(&eahd->descTag);
+                iinfo->i_lenEAttr += size;
                 return (struct genericFormat *)&ea[offset];
         }
-        if (loc & 0x02) {
-        }
+        if (loc & 0x02)
+                ;
 
         return NULL;
 }
@@ -143,18 +154,20 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
         struct genericFormat *gaf;
         uint8_t *ea = NULL;
         uint32_t offset;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
-        ea = UDF_I_DATA(inode);
+        ea = iinfo->i_ext.i_data;
 
-        if (UDF_I_LENEATTR(inode)) {
+        if (iinfo->i_lenEAttr) {
                 struct extendedAttrHeaderDesc *eahd;
                 eahd = (struct extendedAttrHeaderDesc *)ea;
 
                 /* check checksum/crc */
-                if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
-                    le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) {
+                if (eahd->descTag.tagIdent !=
+                                cpu_to_le16(TAG_IDENT_EAHD) ||
+                    le32_to_cpu(eahd->descTag.tagLocation) !=
+                                iinfo->i_location.logicalBlockNum)
                         return NULL;
-                }
 
                 if (type < 2048)
                         offset = sizeof(struct extendedAttrHeaderDesc);
@@ -163,9 +176,10 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
                 else
                         offset = le32_to_cpu(eahd->appAttrLocation);
 
-                while (offset < UDF_I_LENEATTR(inode)) {
+                while (offset < iinfo->i_lenEAttr) {
                         gaf = (struct genericFormat *)&ea[offset];
-                        if (le32_to_cpu(gaf->attrType) == type && gaf->attrSubtype == subtype)
+                        if (le32_to_cpu(gaf->attrType) == type &&
+                                        gaf->attrSubtype == subtype)
                                 return gaf;
                         else
                                 offset += le32_to_cpu(gaf->attrLength);
@@ -186,21 +200,20 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
  *      Written, tested, and released.
  */
 struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
-                                    uint32_t location, uint16_t * ident)
+                                    uint32_t location, uint16_t *ident)
 {
         tag *tag_p;
         struct buffer_head *bh = NULL;
-        register uint8_t checksum;
-        register int i;
+        struct udf_sb_info *sbi = UDF_SB(sb);
 
         /* Read the block */
         if (block == 0xFFFFFFFF)
                 return NULL;
 
-        bh = udf_tread(sb, block + UDF_SB_SESSION(sb));
+        bh = udf_tread(sb, block + sbi->s_session);
         if (!bh) {
                 udf_debug("block=%d, location=%d: read failed\n",
-                          block + UDF_SB_SESSION(sb), location);
+                          block + sbi->s_session, location);
                 return NULL;
         }
 
@@ -210,24 +223,20 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
 
         if (location != le32_to_cpu(tag_p->tagLocation)) {
                 udf_debug("location mismatch block %u, tag %u != %u\n",
-                          block + UDF_SB_SESSION(sb), le32_to_cpu(tag_p->tagLocation), location);
+                          block + sbi->s_session,
+                          le32_to_cpu(tag_p->tagLocation), location);
                 goto error_out;
         }
 
         /* Verify the tag checksum */
-        checksum = 0U;
-        for (i = 0; i < 4; i++)
-                checksum += (uint8_t)(bh->b_data[i]);
-        for (i = 5; i < 16; i++)
-                checksum += (uint8_t)(bh->b_data[i]);
-        if (checksum != tag_p->tagChecksum) {
+        if (udf_tag_checksum(tag_p) != tag_p->tagChecksum) {
                 printk(KERN_ERR "udf: tag checksum failed block %d\n", block);
                 goto error_out;
         }
 
         /* Verify the tag version */
-        if (le16_to_cpu(tag_p->descVersion) != 0x0002U &&
-            le16_to_cpu(tag_p->descVersion) != 0x0003U) {
+        if (tag_p->descVersion != cpu_to_le16(0x0002U) &&
+            tag_p->descVersion != cpu_to_le16(0x0003U)) {
                 udf_debug("tag version 0x%04x != 0x0002 || 0x0003 block %d\n",
                           le16_to_cpu(tag_p->descVersion), block);
                 goto error_out;
@@ -236,11 +245,11 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
         /* Verify the descriptor CRC */
         if (le16_to_cpu(tag_p->descCRCLength) + sizeof(tag) > sb->s_blocksize ||
             le16_to_cpu(tag_p->descCRC) == udf_crc(bh->b_data + sizeof(tag),
-                                                   le16_to_cpu(tag_p->descCRCLength), 0)) {
+                                        le16_to_cpu(tag_p->descCRCLength), 0))
                 return bh;
-        }
+
         udf_debug("Crc failure block %d: crc = %d, crclen = %d\n",
-                  block + UDF_SB_SESSION(sb), le16_to_cpu(tag_p->descCRC),
+                  block + sbi->s_session, le16_to_cpu(tag_p->descCRC),
                   le16_to_cpu(tag_p->descCRCLength));
 
 error_out:
@@ -249,7 +258,7 @@ error_out:
 }
 
 struct buffer_head *udf_read_ptagged(struct super_block *sb, kernel_lb_addr loc,
-                                     uint32_t offset, uint16_t * ident)
+                                     uint32_t offset, uint16_t *ident)
 {
         return udf_read_tagged(sb, udf_get_lb_pblock(sb, loc, offset),
                                loc.logicalBlockNum + offset, ident);
@@ -258,17 +267,11 @@ struct buffer_head *udf_read_ptagged(struct super_block *sb, kernel_lb_addr loc,
 void udf_update_tag(char *data, int length)
 {
         tag *tptr = (tag *)data;
-        int i;
-
         length -= sizeof(tag);
 
-        tptr->tagChecksum = 0;
         tptr->descCRCLength = cpu_to_le16(length);
         tptr->descCRC = cpu_to_le16(udf_crc(data + sizeof(tag), length, 0));
-
-        for (i = 0; i < 16; i++)
-                if (i != 4)
-                        tptr->tagChecksum += (uint8_t)(data[i]);
+        tptr->tagChecksum = udf_tag_checksum(tptr);
 }
 
 void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
@@ -281,3 +284,14 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
         tptr->tagLocation = cpu_to_le32(loc);
         udf_update_tag(data, length);
 }
+
+u8 udf_tag_checksum(const tag *t)
+{
+        u8 *data = (u8 *)t;
+        u8 checksum = 0;
+        int i;
+        for (i = 0; i < sizeof(tag); ++i)
+                if (i != 4) /* position of checksum */
+                        checksum += data[i];
+        return checksum;
+}
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index bec96a6b3343..112a5fb0b27b 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -43,12 +43,10 @@ static inline int udf_match(int len1, const char *name1, int len2,
 
 int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
                  struct fileIdentDesc *sfi, struct udf_fileident_bh *fibh,
-                 uint8_t * impuse, uint8_t * fileident)
+                 uint8_t *impuse, uint8_t *fileident)
 {
         uint16_t crclen = fibh->eoffset - fibh->soffset - sizeof(tag);
         uint16_t crc;
-        uint8_t checksum = 0;
-        int i;
         int offset;
         uint16_t liu = le16_to_cpu(cfi->lengthOfImpUse);
         uint8_t lfi = cfi->lengthFileIdent;
@@ -56,7 +54,7 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
                 sizeof(struct fileIdentDesc);
         int adinicb = 0;
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+        if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 adinicb = 1;
 
         offset = fibh->soffset + sizeof(struct fileIdentDesc);
@@ -68,7 +66,8 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
                         memcpy(fibh->ebh->b_data + offset, impuse, liu);
                 } else {
                         memcpy((uint8_t *)sfi->impUse, impuse, -offset);
-                        memcpy(fibh->ebh->b_data, impuse - offset, liu + offset);
+                        memcpy(fibh->ebh->b_data, impuse - offset,
+                                liu + offset);
                 }
         }
 
@@ -80,8 +79,10 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
                 } else if (offset >= 0) {
                         memcpy(fibh->ebh->b_data + offset, fileident, lfi);
                 } else {
-                        memcpy((uint8_t *)sfi->fileIdent + liu, fileident, -offset);
-                        memcpy(fibh->ebh->b_data, fileident - offset, lfi + offset);
+                        memcpy((uint8_t *)sfi->fileIdent + liu, fileident,
+                                -offset);
+                        memcpy(fibh->ebh->b_data, fileident - offset,
+                                lfi + offset);
                 }
         }
 
@@ -101,27 +102,29 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
 
         if (fibh->sbh == fibh->ebh) {
                 crc = udf_crc((uint8_t *)sfi->impUse,
-                              crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
+                              crclen + sizeof(tag) -
+                              sizeof(struct fileIdentDesc), crc);
         } else if (sizeof(struct fileIdentDesc) >= -fibh->soffset) {
-                crc = udf_crc(fibh->ebh->b_data + sizeof(struct fileIdentDesc) + fibh->soffset,
-                              crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
+                crc = udf_crc(fibh->ebh->b_data +
+                                        sizeof(struct fileIdentDesc) +
+                                        fibh->soffset,
+                              crclen + sizeof(tag) -
+                                        sizeof(struct fileIdentDesc),
+                              crc);
         } else {
                 crc = udf_crc((uint8_t *)sfi->impUse,
-                              -fibh->soffset - sizeof(struct fileIdentDesc), crc);
+                              -fibh->soffset - sizeof(struct fileIdentDesc),
+                              crc);
                 crc = udf_crc(fibh->ebh->b_data, fibh->eoffset, crc);
         }
 
         cfi->descTag.descCRC = cpu_to_le16(crc);
         cfi->descTag.descCRCLength = cpu_to_le16(crclen);
+        cfi->descTag.tagChecksum = udf_tag_checksum(&cfi->descTag);
 
-        for (i = 0; i < 16; i++) {
-                if (i != 4)
-                        checksum += ((uint8_t *)&cfi->descTag)[i];
-        }
-
-        cfi->descTag.tagChecksum = checksum;
         if (adinicb || (sizeof(struct fileIdentDesc) <= -fibh->soffset)) {
-                memcpy((uint8_t *)sfi, (uint8_t *)cfi, sizeof(struct fileIdentDesc));
+                memcpy((uint8_t *)sfi, (uint8_t *)cfi,
+                        sizeof(struct fileIdentDesc));
         } else {
                 memcpy((uint8_t *)sfi, (uint8_t *)cfi, -fibh->soffset);
                 memcpy(fibh->ebh->b_data, (uint8_t *)cfi - fibh->soffset,
@@ -155,26 +158,28 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
         uint32_t elen;
         sector_t offset;
         struct extent_position epos = {};
+        struct udf_inode_info *dinfo = UDF_I(dir);
 
-        size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
-        f_pos = (udf_ext0_offset(dir) >> 2);
+        size = udf_ext0_offset(dir) + dir->i_size;
+        f_pos = udf_ext0_offset(dir);
 
-        fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        fibh->soffset = fibh->eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
+        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 fibh->sbh = fibh->ebh = NULL;
-        } else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
-                              &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+        else if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits,
+                              &epos, &eloc, &elen, &offset) ==
+                                        (EXT_RECORDED_ALLOCATED >> 30)) {
                 block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
                 if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
-                        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+                        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                                 epos.offset -= sizeof(short_ad);
-                        else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+                        else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                                 epos.offset -= sizeof(long_ad);
-                } else {
+                } else
                         offset = 0;
-                }
 
-                if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
+                fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
+                if (!fibh->sbh) {
                         brelse(epos.bh);
                         return NULL;
                 }
@@ -183,7 +188,7 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
                 return NULL;
         }
 
-        while ((f_pos < size)) {
+        while (f_pos < size) {
                 fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
                                         &elen, &offset);
                 if (!fi) {
@@ -202,14 +207,18 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
                 } else {
                         int poffset;    /* Unpaded ending offset */
 
-                        poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
+                        poffset = fibh->soffset + sizeof(struct fileIdentDesc) +
+                                        liu + lfi;
 
-                        if (poffset >= lfi) {
-                                nameptr = (uint8_t *)(fibh->ebh->b_data + poffset - lfi);
-                        } else {
+                        if (poffset >= lfi)
+                                nameptr = (uint8_t *)(fibh->ebh->b_data +
+                                                      poffset - lfi);
+                        else {
                                 nameptr = fname;
-                                memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
-                                memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
+                                memcpy(nameptr, fi->fileIdent + liu,
+                                        lfi - poffset);
+                                memcpy(nameptr + lfi - poffset,
+                                        fibh->ebh->b_data, poffset);
                         }
                 }
 
@@ -226,11 +235,11 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
                 if (!lfi)
                         continue;
 
-                if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi))) {
-                        if (udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) {
-                                brelse(epos.bh);
-                                return fi;
-                        }
+                flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+                if (flen && udf_match(flen, fname, dentry->d_name.len,
+                                      dentry->d_name.name)) {
+                        brelse(epos.bh);
+                        return fi;
                 }
         }
 
@@ -291,16 +300,16 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
         if (!strncmp(dentry->d_name.name, ".B=", 3)) {
                 kernel_lb_addr lb = {
                         .logicalBlockNum = 0,
-                        .partitionReferenceNum = simple_strtoul(dentry->d_name.name + 3,
-                                                                NULL, 0),
+                        .partitionReferenceNum =
+                                simple_strtoul(dentry->d_name.name + 3,
+                                                NULL, 0),
                 };
                 inode = udf_iget(dir->i_sb, lb);
                 if (!inode) {
                         unlock_kernel();
                         return ERR_PTR(-EACCES);
                 }
-        }
-        else
+        } else
 #endif /* UDF_RECOVERY */
 
         if (udf_find_entry(dir, dentry, &fibh, &cfi)) {
@@ -325,14 +334,14 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
                                            struct udf_fileident_bh *fibh,
                                            struct fileIdentDesc *cfi, int *err)
 {
-        struct super_block *sb;
+        struct super_block *sb = dir->i_sb;
         struct fileIdentDesc *fi = NULL;
         char name[UDF_NAME_LEN], fname[UDF_NAME_LEN];
         int namelen;
         loff_t f_pos;
         int flen;
         char *nameptr;
-        loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+        loff_t size = udf_ext0_offset(dir) + dir->i_size;
         int nfidlen;
         uint8_t lfi;
         uint16_t liu;
@@ -341,16 +350,16 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
         uint32_t elen;
         sector_t offset;
         struct extent_position epos = {};
-
-        sb = dir->i_sb;
+        struct udf_inode_info *dinfo;
 
         if (dentry) {
                 if (!dentry->d_name.len) {
                         *err = -EINVAL;
                         return NULL;
                 }
-                if (!(namelen = udf_put_filename(sb, dentry->d_name.name, name,
-                                                 dentry->d_name.len))) {
+                namelen = udf_put_filename(sb, dentry->d_name.name, name,
+                                                 dentry->d_name.len);
+                if (!namelen) {
                         *err = -ENAMETOOLONG;
                         return NULL;
                 }
@@ -360,39 +369,40 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
 
         nfidlen = (sizeof(struct fileIdentDesc) + namelen + 3) & ~3;
 
-        f_pos = (udf_ext0_offset(dir) >> 2);
+        f_pos = udf_ext0_offset(dir);
 
-        fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        fibh->soffset = fibh->eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
+        dinfo = UDF_I(dir);
+        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 fibh->sbh = fibh->ebh = NULL;
-        } else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
-                              &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+        else if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits,
+                              &epos, &eloc, &elen, &offset) ==
+                                        (EXT_RECORDED_ALLOCATED >> 30)) {
                 block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
                 if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
-                        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+                        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                                 epos.offset -= sizeof(short_ad);
-                        else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+                        else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                                 epos.offset -= sizeof(long_ad);
-                } else {
+                } else
                         offset = 0;
-                }
 
-                if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
+                fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
+                if (!fibh->sbh) {
                         brelse(epos.bh);
                         *err = -EIO;
                         return NULL;
                 }
 
-                block = UDF_I_LOCATION(dir).logicalBlockNum;
-
+                block = dinfo->i_location.logicalBlockNum;
         } else {
-                block = udf_get_lb_pblock(dir->i_sb, UDF_I_LOCATION(dir), 0);
+                block = udf_get_lb_pblock(dir->i_sb, dinfo->i_location, 0);
                 fibh->sbh = fibh->ebh = NULL;
                 fibh->soffset = fibh->eoffset = sb->s_blocksize;
                 goto add;
         }
 
-        while ((f_pos < size)) {
+        while (f_pos < size) {
                 fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
                                         &elen, &offset);
 
@@ -408,33 +418,39 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
                 liu = le16_to_cpu(cfi->lengthOfImpUse);
                 lfi = cfi->lengthFileIdent;
 
-                if (fibh->sbh == fibh->ebh) {
+                if (fibh->sbh == fibh->ebh)
                         nameptr = fi->fileIdent + liu;
-                } else {
+                else {
                         int poffset;    /* Unpaded ending offset */
 
-                        poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
+                        poffset = fibh->soffset + sizeof(struct fileIdentDesc) +
+                                        liu + lfi;
 
-                        if (poffset >= lfi) {
-                                nameptr = (char *)(fibh->ebh->b_data + poffset - lfi);
-                        } else {
+                        if (poffset >= lfi)
+                                nameptr = (char *)(fibh->ebh->b_data +
+                                                   poffset - lfi);
+                        else {
                                 nameptr = fname;
-                                memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
-                                memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
+                                memcpy(nameptr, fi->fileIdent + liu,
+                                        lfi - poffset);
+                                memcpy(nameptr + lfi - poffset,
+                                        fibh->ebh->b_data, poffset);
                         }
                 }
 
                 if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
-                        if (((sizeof(struct fileIdentDesc) + liu + lfi + 3) & ~3) == nfidlen) {
+                        if (((sizeof(struct fileIdentDesc) +
+                                        liu + lfi + 3) & ~3) == nfidlen) {
                                 brelse(epos.bh);
                                 cfi->descTag.tagSerialNum = cpu_to_le16(1);
                                 cfi->fileVersionNum = cpu_to_le16(1);
                                 cfi->fileCharacteristics = 0;
                                 cfi->lengthFileIdent = namelen;
                                 cfi->lengthOfImpUse = cpu_to_le16(0);
-                                if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) {
+                                if (!udf_write_fi(dir, cfi, fi, fibh, NULL,
+                                                  name))
                                         return fi;
-                                } else {
+                                else {
                                         *err = -EIO;
                                         return NULL;
                                 }
@@ -444,8 +460,9 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
                 if (!lfi || !dentry)
                         continue;
 
-                if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi)) &&
-                    udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) {
+                flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+                if (flen && udf_match(flen, fname, dentry->d_name.len,
+                                      dentry->d_name.name)) {
                         if (fibh->sbh != fibh->ebh)
                                 brelse(fibh->ebh);
                         brelse(fibh->sbh);
@@ -456,29 +473,34 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
         }
 
 add:
+        if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+                elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
+                if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
+                        epos.offset -= sizeof(short_ad);
+                else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
+                        epos.offset -= sizeof(long_ad);
+                udf_write_aext(dir, &epos, eloc, elen, 1);
+        }
         f_pos += nfidlen;
 
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB &&
+        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB &&
             sb->s_blocksize - fibh->eoffset < nfidlen) {
                 brelse(epos.bh);
                 epos.bh = NULL;
                 fibh->soffset -= udf_ext0_offset(dir);
                 fibh->eoffset -= udf_ext0_offset(dir);
-                f_pos -= (udf_ext0_offset(dir) >> 2);
+                f_pos -= udf_ext0_offset(dir);
                 if (fibh->sbh != fibh->ebh)
                         brelse(fibh->ebh);
                 brelse(fibh->sbh);
-                if (!(fibh->sbh = fibh->ebh = udf_expand_dir_adinicb(dir, &block, err)))
+                fibh->sbh = fibh->ebh =
+                                udf_expand_dir_adinicb(dir, &block, err);
+                if (!fibh->sbh)
                         return NULL;
-                epos.block = UDF_I_LOCATION(dir);
-                eloc.logicalBlockNum = block;
-                eloc.partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
-                elen = dir->i_sb->s_blocksize;
+                epos.block = dinfo->i_location;
                 epos.offset = udf_file_entry_alloc_offset(dir);
-                if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
-                        epos.offset += sizeof(short_ad);
-                else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
-                        epos.offset += sizeof(long_ad);
+                /* Load extent udf_expand_dir_adinicb() has created */
+                udf_current_aext(dir, &epos, &eloc, &elen, 1);
         }
 
         if (sb->s_blocksize - fibh->eoffset >= nfidlen) {
@@ -489,15 +511,19 @@ add:
                         fibh->sbh = fibh->ebh;
                 }
 
-                if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
-                        block = UDF_I_LOCATION(dir).logicalBlockNum;
-                        fi = (struct fileIdentDesc *)(UDF_I_DATA(dir) + fibh->soffset -
-                                                      udf_ext0_offset(dir) +
-                                                      UDF_I_LENEATTR(dir));
+                if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+                        block = dinfo->i_location.logicalBlockNum;
+                        fi = (struct fileIdentDesc *)
+                                        (dinfo->i_ext.i_data +
+                                         fibh->soffset -
+                                         udf_ext0_offset(dir) +
+                                         dinfo->i_lenEAttr);
                 } else {
-                        block = eloc.logicalBlockNum + ((elen - 1) >>
-                                                        dir->i_sb->s_blocksize_bits);
-                        fi = (struct fileIdentDesc *)(fibh->sbh->b_data + fibh->soffset);
+                        block = eloc.logicalBlockNum +
+                                        ((elen - 1) >>
+                                                dir->i_sb->s_blocksize_bits);
+                        fi = (struct fileIdentDesc *)
+                                (fibh->sbh->b_data + fibh->soffset);
                 }
         } else {
                 fibh->soffset = fibh->eoffset - sb->s_blocksize;
@@ -509,7 +535,8 @@ add:
 
                 block = eloc.logicalBlockNum + ((elen - 1) >>
                                                 dir->i_sb->s_blocksize_bits);
-                fibh->ebh = udf_bread(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), 1, err);
+                fibh->ebh = udf_bread(dir,
+                                f_pos >> dir->i_sb->s_blocksize_bits, 1, err);
                 if (!fibh->ebh) {
                         brelse(epos.bh);
                         brelse(fibh->sbh);
@@ -521,32 +548,34 @@ add:
                             (EXT_RECORDED_ALLOCATED >> 30)) {
                                 block = eloc.logicalBlockNum + ((elen - 1) >>
                                         dir->i_sb->s_blocksize_bits);
-                        } else {
+                        } else
                                 block++;
-                        }
 
                         brelse(fibh->sbh);
                         fibh->sbh = fibh->ebh;
                         fi = (struct fileIdentDesc *)(fibh->sbh->b_data);
                 } else {
                         fi = (struct fileIdentDesc *)
-                                (fibh->sbh->b_data + sb->s_blocksize + fibh->soffset);
+                                (fibh->sbh->b_data + sb->s_blocksize +
+                                        fibh->soffset);
                 }
         }
 
         memset(cfi, 0, sizeof(struct fileIdentDesc));
-        if (UDF_SB_UDFREV(sb) >= 0x0200)
-                udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block, sizeof(tag));
+        if (UDF_SB(sb)->s_udfrev >= 0x0200)
+                udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block,
+                            sizeof(tag));
         else
-                udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block, sizeof(tag));
+                udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block,
+                            sizeof(tag));
         cfi->fileVersionNum = cpu_to_le16(1);
         cfi->lengthFileIdent = namelen;
         cfi->lengthOfImpUse = cpu_to_le16(0);
         if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) {
                 brelse(epos.bh);
                 dir->i_size += nfidlen;
-                if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
-                        UDF_I_LENALLOC(dir) += nfidlen;
+                if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+                        dinfo->i_lenAlloc += nfidlen;
                 mark_inode_dirty(dir);
                 return fi;
         } else {
@@ -578,6 +607,7 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
         struct inode *inode;
         struct fileIdentDesc cfi, *fi;
         int err;
+        struct udf_inode_info *iinfo;
 
         lock_kernel();
         inode = udf_new_inode(dir, mode, &err);
@@ -586,7 +616,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
                 return err;
         }
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+        iinfo = UDF_I(inode);
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 inode->i_data.a_ops = &udf_adinicb_aops;
         else
                 inode->i_data.a_ops = &udf_aops;
@@ -595,7 +626,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
         inode->i_mode = mode;
         mark_inode_dirty(inode);
 
-        if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+        fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+        if (!fi) {
                 inode->i_nlink--;
                 mark_inode_dirty(inode);
                 iput(inode);
@@ -603,13 +635,12 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
                 return err;
         }
         cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
-        cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+        cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
         *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
-                cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+                cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
         udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 mark_inode_dirty(dir);
-        }
         if (fibh.sbh != fibh.ebh)
                 brelse(fibh.ebh);
         brelse(fibh.sbh);
@@ -626,6 +657,7 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
         struct udf_fileident_bh fibh;
         struct fileIdentDesc cfi, *fi;
         int err;
+        struct udf_inode_info *iinfo;
 
         if (!old_valid_dev(rdev))
                 return -EINVAL;
@@ -636,9 +668,11 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
         if (!inode)
                 goto out;
 
+        iinfo = UDF_I(inode);
         inode->i_uid = current->fsuid;
         init_special_inode(inode, mode, rdev);
-        if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+        fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+        if (!fi) {
                 inode->i_nlink--;
                 mark_inode_dirty(inode);
                 iput(inode);
@@ -646,13 +680,12 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
                 return err;
         }
         cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
-        cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+        cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
         *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
-                cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+                cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
         udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 mark_inode_dirty(dir);
-        }
         mark_inode_dirty(inode);
 
         if (fibh.sbh != fibh.ebh)
@@ -672,6 +705,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         struct udf_fileident_bh fibh;
         struct fileIdentDesc cfi, *fi;
         int err;
+        struct udf_inode_info *dinfo = UDF_I(dir);
+        struct udf_inode_info *iinfo;
 
         lock_kernel();
         err = -EMLINK;
@@ -683,9 +718,11 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         if (!inode)
                 goto out;
 
+        iinfo = UDF_I(inode);
         inode->i_op = &udf_dir_inode_operations;
         inode->i_fop = &udf_dir_operations;
-        if (!(fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err))) {
+        fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err);
+        if (!fi) {
                 inode->i_nlink--;
                 mark_inode_dirty(inode);
                 iput(inode);
@@ -693,10 +730,11 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         }
         inode->i_nlink = 2;
         cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
-        cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(dir));
+        cfi.icb.extLocation = cpu_to_lelb(dinfo->i_location);
         *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
-                cpu_to_le32(UDF_I_UNIQUE(dir) & 0x00000000FFFFFFFFUL);
-        cfi.fileCharacteristics = FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
+                cpu_to_le32(dinfo->i_unique & 0x00000000FFFFFFFFUL);
+        cfi.fileCharacteristics =
+                        FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
         udf_write_fi(inode, &cfi, fi, &fibh, NULL, NULL);
         brelse(fibh.sbh);
         inode->i_mode = S_IFDIR | mode;
@@ -704,16 +742,17 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                 inode->i_mode |= S_ISGID;
         mark_inode_dirty(inode);
 
-        if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+        fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+        if (!fi) {
                 inode->i_nlink = 0;
                 mark_inode_dirty(inode);
                 iput(inode);
                 goto out;
         }
         cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
-        cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+        cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
         *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
-                cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+                cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
         cfi.fileCharacteristics |= FID_FILE_CHAR_DIRECTORY;
         udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
         inc_nlink(dir);
@@ -734,32 +773,33 @@ static int empty_dir(struct inode *dir)
         struct fileIdentDesc *fi, cfi;
         struct udf_fileident_bh fibh;
         loff_t f_pos;
-        loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+        loff_t size = udf_ext0_offset(dir) + dir->i_size;
         int block;
         kernel_lb_addr eloc;
         uint32_t elen;
         sector_t offset;
         struct extent_position epos = {};
+        struct udf_inode_info *dinfo = UDF_I(dir);
 
-        f_pos = (udf_ext0_offset(dir) >> 2);
+        f_pos = udf_ext0_offset(dir);
+        fibh.soffset = fibh.eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
 
-        fibh.soffset = fibh.eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
-
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 fibh.sbh = fibh.ebh = NULL;
-        } else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
-                              &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+        else if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits,
+                              &epos, &eloc, &elen, &offset) ==
+                                        (EXT_RECORDED_ALLOCATED >> 30)) {
                 block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
                 if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
-                        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+                        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                                 epos.offset -= sizeof(short_ad);
-                        else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+                        else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                                 epos.offset -= sizeof(long_ad);
-                } else {
+                } else
                         offset = 0;
-                }
 
-                if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) {
+                fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block);
+                if (!fibh.sbh) {
                         brelse(epos.bh);
                         return 0;
                 }
@@ -768,7 +808,7 @@ static int empty_dir(struct inode *dir)
                 return 0;
         }
 
-        while ((f_pos < size)) {
+        while (f_pos < size) {
                 fi = udf_fileident_read(dir, &f_pos, &fibh, &cfi, &epos, &eloc,
                                         &elen, &offset);
                 if (!fi) {
@@ -828,7 +868,8 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry)
         clear_nlink(inode);
         inode->i_size = 0;
         inode_dec_link_count(dir);
-        inode->i_ctime = dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb);
+        inode->i_ctime = dir->i_ctime = dir->i_mtime =
+                                                current_fs_time(dir->i_sb);
         mark_inode_dirty(dir);
 
 end_rmdir:
@@ -901,36 +942,42 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
         int block;
         char name[UDF_NAME_LEN];
         int namelen;
+        struct buffer_head *bh;
+        struct udf_inode_info *iinfo;
 
         lock_kernel();
-        if (!(inode = udf_new_inode(dir, S_IFLNK, &err)))
+        inode = udf_new_inode(dir, S_IFLNK, &err);
+        if (!inode)
                 goto out;
 
+        iinfo = UDF_I(inode);
         inode->i_mode = S_IFLNK | S_IRWXUGO;
         inode->i_data.a_ops = &udf_symlink_aops;
         inode->i_op = &page_symlink_inode_operations;
 
-        if (UDF_I_ALLOCTYPE(inode) != ICBTAG_FLAG_AD_IN_ICB) {
+        if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
                 kernel_lb_addr eloc;
                 uint32_t elen;
 
                 block = udf_new_block(inode->i_sb, inode,
-                                      UDF_I_LOCATION(inode).partitionReferenceNum,
-                                      UDF_I_LOCATION(inode).logicalBlockNum, &err);
+                                iinfo->i_location.partitionReferenceNum,
+                                iinfo->i_location.logicalBlockNum, &err);
                 if (!block)
                         goto out_no_entry;
-                epos.block = UDF_I_LOCATION(inode);
+                epos.block = iinfo->i_location;
                 epos.offset = udf_file_entry_alloc_offset(inode);
                 epos.bh = NULL;
                 eloc.logicalBlockNum = block;
-                eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+                eloc.partitionReferenceNum =
+                                iinfo->i_location.partitionReferenceNum;
                 elen = inode->i_sb->s_blocksize;
-                UDF_I_LENEXTENTS(inode) = elen;
+                iinfo->i_lenExtents = elen;
                 udf_add_aext(inode, &epos, eloc, elen, 0);
                 brelse(epos.bh);
 
                 block = udf_get_pblock(inode->i_sb, block,
-                                       UDF_I_LOCATION(inode).partitionReferenceNum, 0);
+                                iinfo->i_location.partitionReferenceNum,
+                                0);
                 epos.bh = udf_tread(inode->i_sb, block);
                 lock_buffer(epos.bh);
                 memset(epos.bh->b_data, 0x00, inode->i_sb->s_blocksize);
@@ -938,9 +985,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
                 unlock_buffer(epos.bh);
                 mark_buffer_dirty_inode(epos.bh, inode);
                 ea = epos.bh->b_data + udf_ext0_offset(inode);
-        } else {
-                ea = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode);
-        }
+        } else
+                ea = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
 
         eoffset = inode->i_sb->s_blocksize - udf_ext0_offset(inode);
         pc = (struct pathComponent *)ea;
@@ -977,7 +1023,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
                 if (compstart[0] == '.') {
                         if ((symname - compstart) == 1)
                                 pc->componentType = 4;
-                        else if ((symname - compstart) == 2 && compstart[1] == '.')
+                        else if ((symname - compstart) == 2 &&
+                                        compstart[1] == '.')
                                 pc->componentType = 3;
                 }
 
@@ -987,7 +1034,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
                         if (!namelen)
                                 goto out_no_entry;
 
-                        if (elen + sizeof(struct pathComponent) + namelen > eoffset)
+                        if (elen + sizeof(struct pathComponent) + namelen >
+                                        eoffset)
                                 goto out_no_entry;
                         else
                                 pc->lengthComponentIdent = namelen;
@@ -1006,30 +1054,34 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
 
         brelse(epos.bh);
         inode->i_size = elen;
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
-                UDF_I_LENALLOC(inode) = inode->i_size;
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+                iinfo->i_lenAlloc = inode->i_size;
         mark_inode_dirty(inode);
 
-        if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
+        fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+        if (!fi)
                 goto out_no_entry;
         cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
-        cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
-        if (UDF_SB_LVIDBH(inode->i_sb)) {
+        cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
+        bh = UDF_SB(inode->i_sb)->s_lvid_bh;
+        if (bh) {
+                struct logicalVolIntegrityDesc *lvid =
+                                (struct logicalVolIntegrityDesc *)bh->b_data;
                 struct logicalVolHeaderDesc *lvhd;
                 uint64_t uniqueID;
-                lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
+                lvhd = (struct logicalVolHeaderDesc *)
+                                lvid->logicalVolContentsUse;
                 uniqueID = le64_to_cpu(lvhd->uniqueID);
                 *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
                         cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
                 if (!(++uniqueID & 0x00000000FFFFFFFFUL))
                         uniqueID += 16;
                 lvhd->uniqueID = cpu_to_le64(uniqueID);
-                mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb));
+                mark_buffer_dirty(bh);
         }
         udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 mark_inode_dirty(dir);
-        }
         if (fibh.sbh != fibh.ebh)
                 brelse(fibh.ebh);
         brelse(fibh.sbh);
@@ -1053,6 +1105,7 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
         struct udf_fileident_bh fibh;
         struct fileIdentDesc cfi, *fi;
         int err;
+        struct buffer_head *bh;
 
         lock_kernel();
         if (inode->i_nlink >= (256 << sizeof(inode->i_nlink)) - 1) {
@@ -1060,28 +1113,32 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
                 return -EMLINK;
         }
 
-        if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+        fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+        if (!fi) {
                 unlock_kernel();
                 return err;
         }
         cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
-        cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
-        if (UDF_SB_LVIDBH(inode->i_sb)) {
+        cfi.icb.extLocation = cpu_to_lelb(UDF_I(inode)->i_location);
+        bh = UDF_SB(inode->i_sb)->s_lvid_bh;
+        if (bh) {
+                struct logicalVolIntegrityDesc *lvid =
+                                (struct logicalVolIntegrityDesc *)bh->b_data;
                 struct logicalVolHeaderDesc *lvhd;
                 uint64_t uniqueID;
-                lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
+                lvhd = (struct logicalVolHeaderDesc *)
+                                (lvid->logicalVolContentsUse);
                 uniqueID = le64_to_cpu(lvhd->uniqueID);
                 *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
                         cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
                 if (!(++uniqueID & 0x00000000FFFFFFFFUL))
                         uniqueID += 16;
                 lvhd->uniqueID = cpu_to_le64(uniqueID);
-                mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb));
+                mark_buffer_dirty(bh);
         }
         udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
-        if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+        if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 mark_inode_dirty(dir);
-        }
 
         if (fibh.sbh != fibh.ebh)
                 brelse(fibh.ebh);
@@ -1105,13 +1162,16 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
         struct inode *old_inode = old_dentry->d_inode;
         struct inode *new_inode = new_dentry->d_inode;
         struct udf_fileident_bh ofibh, nfibh;
-        struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = NULL, ocfi, ncfi;
+        struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = NULL;
+        struct fileIdentDesc ocfi, ncfi;
         struct buffer_head *dir_bh = NULL;
         int retval = -ENOENT;
         kernel_lb_addr tloc;
+        struct udf_inode_info *old_iinfo = UDF_I(old_inode);
 
         lock_kernel();
-        if ((ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi))) {
+        ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi);
+        if (ofi) {
                 if (ofibh.sbh != ofibh.ebh)
                         brelse(ofibh.ebh);
                 brelse(ofibh.sbh);
@@ -1131,7 +1191,7 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
                 }
         }
         if (S_ISDIR(old_inode->i_mode)) {
-                uint32_t offset = udf_ext0_offset(old_inode);
+                int offset = udf_ext0_offset(old_inode);
 
                 if (new_inode) {
                         retval = -ENOTEMPTY;
@@ -1139,30 +1199,36 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
                                 goto end_rename;
                 }
                 retval = -EIO;
-                if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) {
-                        dir_fi = udf_get_fileident(UDF_I_DATA(old_inode) -
-                                                   (UDF_I_EFE(old_inode) ?
-                                                    sizeof(struct extendedFileEntry) :
-                                                    sizeof(struct fileEntry)),
-                                                   old_inode->i_sb->s_blocksize, &offset);
+                if (old_iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+                        dir_fi = udf_get_fileident(
+                                        old_iinfo->i_ext.i_data -
+                                          (old_iinfo->i_efe ?
+                                           sizeof(struct extendedFileEntry) :
+                                           sizeof(struct fileEntry)),
+                                        old_inode->i_sb->s_blocksize, &offset);
                 } else {
                         dir_bh = udf_bread(old_inode, 0, 0, &retval);
                         if (!dir_bh)
                                 goto end_rename;
-                        dir_fi = udf_get_fileident(dir_bh->b_data, old_inode->i_sb->s_blocksize, &offset);
+                        dir_fi = udf_get_fileident(dir_bh->b_data,
+                                        old_inode->i_sb->s_blocksize, &offset);
                 }
                 if (!dir_fi)
                         goto end_rename;
                 tloc = lelb_to_cpu(dir_fi->icb.extLocation);
-                if (udf_get_lb_pblock(old_inode->i_sb, tloc, 0) != old_dir->i_ino)
+                if (udf_get_lb_pblock(old_inode->i_sb, tloc, 0) !=
+                                old_dir->i_ino)
                         goto end_rename;
 
                 retval = -EMLINK;
-                if (!new_inode && new_dir->i_nlink >= (256 << sizeof(new_dir->i_nlink)) - 1)
+                if (!new_inode &&
+                        new_dir->i_nlink >=
+                                (256 << sizeof(new_dir->i_nlink)) - 1)
                         goto end_rename;
         }
         if (!nfi) {
-                nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, &retval);
+                nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi,
+                                    &retval);
                 if (!nfi)
                         goto end_rename;
         }
@@ -1194,18 +1260,19 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
         mark_inode_dirty(old_dir);
 
         if (dir_fi) {
-                dir_fi->icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(new_dir));
-                udf_update_tag((char *)dir_fi, (sizeof(struct fileIdentDesc) +
-                                                le16_to_cpu(dir_fi->lengthOfImpUse) + 3) & ~3);
-                if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) {
+                dir_fi->icb.extLocation = cpu_to_lelb(UDF_I(new_dir)->i_location);
+                udf_update_tag((char *)dir_fi,
+                                (sizeof(struct fileIdentDesc) +
+                                le16_to_cpu(dir_fi->lengthOfImpUse) + 3) & ~3);
+                if (old_iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                         mark_inode_dirty(old_inode);
-                } else {
+                else
                         mark_buffer_dirty_inode(dir_bh, old_inode);
-                }
+
                 inode_dec_link_count(old_dir);
-                if (new_inode) {
+                if (new_inode)
                         inode_dec_link_count(new_inode);
-                } else {
+                else {
                         inc_nlink(new_dir);
                         mark_inode_dirty(new_dir);
                 }
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index aaab24c8c498..fc533345ab89 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -31,15 +31,18 @@
 inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block,
                                uint16_t partition, uint32_t offset)
 {
-        if (partition >= UDF_SB_NUMPARTS(sb)) {
-                udf_debug("block=%d, partition=%d, offset=%d: invalid partition\n",
-                          block, partition, offset);
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct udf_part_map *map;
+        if (partition >= sbi->s_partitions) {
+                udf_debug("block=%d, partition=%d, offset=%d: "
+                          "invalid partition\n", block, partition, offset);
                 return 0xFFFFFFFF;
         }
-        if (UDF_SB_PARTFUNC(sb, partition))
-                return UDF_SB_PARTFUNC(sb, partition)(sb, block, partition, offset);
+        map = &sbi->s_partmaps[partition];
+        if (map->s_partition_func)
+                return map->s_partition_func(sb, block, partition, offset);
         else
-                return UDF_SB_PARTROOT(sb, partition) + block + offset;
+                return map->s_partition_root + block + offset;
 }
 
 uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
@@ -49,12 +52,18 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
         uint32_t newblock;
         uint32_t index;
         uint32_t loc;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct udf_part_map *map;
+        struct udf_virtual_data *vdata;
+        struct udf_inode_info *iinfo;
 
-        index = (sb->s_blocksize - UDF_SB_TYPEVIRT(sb,partition).s_start_offset) / sizeof(uint32_t);
+        map = &sbi->s_partmaps[partition];
+        vdata = &map->s_type_specific.s_virtual;
+        index = (sb->s_blocksize - vdata->s_start_offset) / sizeof(uint32_t);
 
-        if (block > UDF_SB_TYPEVIRT(sb,partition).s_num_entries) {
-                udf_debug("Trying to access block beyond end of VAT (%d max %d)\n",
-                          block, UDF_SB_TYPEVIRT(sb,partition).s_num_entries);
+        if (block > vdata->s_num_entries) {
+                udf_debug("Trying to access block beyond end of VAT "
+                          "(%d max %d)\n", block, vdata->s_num_entries);
                 return 0xFFFFFFFF;
         }
 
@@ -64,12 +73,13 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
                 index = block % (sb->s_blocksize / sizeof(uint32_t));
         } else {
                 newblock = 0;
-                index = UDF_SB_TYPEVIRT(sb,partition).s_start_offset / sizeof(uint32_t) + block;
+                index = vdata->s_start_offset / sizeof(uint32_t) + block;
         }
 
-        loc = udf_block_map(UDF_SB_VAT(sb), newblock);
+        loc = udf_block_map(sbi->s_vat_inode, newblock);
 
-        if (!(bh = sb_bread(sb, loc))) {
+        bh = sb_bread(sb, loc);
+        if (!bh) {
                 udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%d,%d) VAT: %d[%d]\n",
                           sb, block, partition, loc, index);
                 return 0xFFFFFFFF;
@@ -79,50 +89,61 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
 
         brelse(bh);
 
-        if (UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum == partition) {
+        iinfo = UDF_I(sbi->s_vat_inode);
+        if (iinfo->i_location.partitionReferenceNum == partition) {
                 udf_debug("recursive call to udf_get_pblock!\n");
                 return 0xFFFFFFFF;
         }
 
         return udf_get_pblock(sb, loc,
-                              UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum,
+                              iinfo->i_location.partitionReferenceNum,
                               offset);
 }
 
-inline uint32_t udf_get_pblock_virt20(struct super_block * sb, uint32_t block,
+inline uint32_t udf_get_pblock_virt20(struct super_block *sb, uint32_t block,
                                       uint16_t partition, uint32_t offset)
 {
         return udf_get_pblock_virt15(sb, block, partition, offset);
 }
 
-uint32_t udf_get_pblock_spar15(struct super_block * sb, uint32_t block,
+uint32_t udf_get_pblock_spar15(struct super_block *sb, uint32_t block,
                                uint16_t partition, uint32_t offset)
 {
         int i;
         struct sparingTable *st = NULL;
-        uint32_t packet = (block + offset) & ~(UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1);
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct udf_part_map *map;
+        uint32_t packet;
+        struct udf_sparing_data *sdata;
+
+        map = &sbi->s_partmaps[partition];
+        sdata = &map->s_type_specific.s_sparing;
+        packet = (block + offset) & ~(sdata->s_packet_len - 1);
 
         for (i = 0; i < 4; i++) {
-                if (UDF_SB_TYPESPAR(sb,partition).s_spar_map[i] != NULL) {
-                        st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,partition).s_spar_map[i]->b_data;
+                if (sdata->s_spar_map[i] != NULL) {
+                        st = (struct sparingTable *)
+                                        sdata->s_spar_map[i]->b_data;
                         break;
                 }
         }
 
         if (st) {
                 for (i = 0; i < le16_to_cpu(st->reallocationTableLen); i++) {
-                        if (le32_to_cpu(st->mapEntry[i].origLocation) >= 0xFFFFFFF0) {
+                        struct sparingEntry *entry = &st->mapEntry[i];
+                        u32 origLoc = le32_to_cpu(entry->origLocation);
+                        if (origLoc >= 0xFFFFFFF0)
                                 break;
-                        } else if (le32_to_cpu(st->mapEntry[i].origLocation) == packet) {
-                                return le32_to_cpu(st->mapEntry[i].mappedLocation) +
-                                        ((block + offset) & (UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1));
-                        } else if (le32_to_cpu(st->mapEntry[i].origLocation) > packet) {
+                        else if (origLoc == packet)
+                                return le32_to_cpu(entry->mappedLocation) +
+                                        ((block + offset) &
+                                                (sdata->s_packet_len - 1));
+                        else if (origLoc > packet)
                                 break;
-                        }
                 }
         }
 
-        return UDF_SB_PARTROOT(sb,partition) + block + offset;
+        return map->s_partition_root + block + offset;
 }
 
 int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
@@ -132,69 +153,109 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
         struct sparingEntry mapEntry;
         uint32_t packet;
         int i, j, k, l;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        u16 reallocationTableLen;
+        struct buffer_head *bh;
 
-        for (i = 0; i < UDF_SB_NUMPARTS(sb); i++) {
-                if (old_block > UDF_SB_PARTROOT(sb,i) &&
-                    old_block < UDF_SB_PARTROOT(sb,i) + UDF_SB_PARTLEN(sb,i)) {
-                        sdata = &UDF_SB_TYPESPAR(sb,i);
-                        packet = (old_block - UDF_SB_PARTROOT(sb,i)) & ~(sdata->s_packet_len - 1);
+        for (i = 0; i < sbi->s_partitions; i++) {
+                struct udf_part_map *map = &sbi->s_partmaps[i];
+                if (old_block > map->s_partition_root &&
+                    old_block < map->s_partition_root + map->s_partition_len) {
+                        sdata = &map->s_type_specific.s_sparing;
+                        packet = (old_block - map->s_partition_root) &
+                                                ~(sdata->s_packet_len - 1);
 
-                        for (j = 0; j < 4; j++) {
-                                if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL) {
-                                        st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
+                        for (j = 0; j < 4; j++)
+                                if (sdata->s_spar_map[j] != NULL) {
+                                        st = (struct sparingTable *)
+                                                sdata->s_spar_map[j]->b_data;
                                         break;
                                 }
-                        }
 
                         if (!st)
                                 return 1;
 
-                        for (k = 0; k < le16_to_cpu(st->reallocationTableLen); k++) {
-                                if (le32_to_cpu(st->mapEntry[k].origLocation) == 0xFFFFFFFF) {
+                        reallocationTableLen =
+                                        le16_to_cpu(st->reallocationTableLen);
+                        for (k = 0; k < reallocationTableLen; k++) {
+                                struct sparingEntry *entry = &st->mapEntry[k];
+                                u32 origLoc = le32_to_cpu(entry->origLocation);
+
+                                if (origLoc == 0xFFFFFFFF) {
                                         for (; j < 4; j++) {
-                                                if (sdata->s_spar_map[j]) {
-                                                        st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
-                                                        st->mapEntry[k].origLocation = cpu_to_le32(packet);
-                                                        udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry));
-                                                        mark_buffer_dirty(sdata->s_spar_map[j]);
-                                                }
+                                                int len;
+                                                bh = sdata->s_spar_map[j];
+                                                if (!bh)
+                                                        continue;
+
+                                                st = (struct sparingTable *)
+                                                                bh->b_data;
+                                                entry->origLocation =
+                                                        cpu_to_le32(packet);
+                                                len =
+                                                  sizeof(struct sparingTable) +
+                                                  reallocationTableLen *
+                                                  sizeof(struct sparingEntry);
+                                                udf_update_tag((char *)st, len);
+                                                mark_buffer_dirty(bh);
                                         }
-                                        *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
-                                                ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+                                        *new_block = le32_to_cpu(
+                                                        entry->mappedLocation) +
+                                                     ((old_block -
+                                                        map->s_partition_root) &
+                                                     (sdata->s_packet_len - 1));
                                         return 0;
-                                } else if (le32_to_cpu(st->mapEntry[k].origLocation) == packet) {
-                                        *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
-                                                ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+                                } else if (origLoc == packet) {
+                                        *new_block = le32_to_cpu(
+                                                        entry->mappedLocation) +
+                                                     ((old_block -
+                                                        map->s_partition_root) &
+                                                     (sdata->s_packet_len - 1));
                                         return 0;
-                                } else if (le32_to_cpu(st->mapEntry[k].origLocation) > packet) {
+                                } else if (origLoc > packet)
                                         break;
-                                }
                         }
 
-                        for (l = k; l < le16_to_cpu(st->reallocationTableLen); l++) {
-                                if (le32_to_cpu(st->mapEntry[l].origLocation) == 0xFFFFFFFF) {
-                                        for (; j < 4; j++) {
-                                                if (sdata->s_spar_map[j]) {
-                                                        st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
-                                                        mapEntry = st->mapEntry[l];
-                                                        mapEntry.origLocation = cpu_to_le32(packet);
-                                                        memmove(&st->mapEntry[k + 1], &st->mapEntry[k], (l - k) * sizeof(struct sparingEntry));
-                                                        st->mapEntry[k] = mapEntry;
-                                                        udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry));
-                                                        mark_buffer_dirty(sdata->s_spar_map[j]);
-                                                }
-                                        }
-                                        *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
-                                                ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
-                                        return 0;
+                        for (l = k; l < reallocationTableLen; l++) {
+                                struct sparingEntry *entry = &st->mapEntry[l];
+                                u32 origLoc = le32_to_cpu(entry->origLocation);
+
+                                if (origLoc != 0xFFFFFFFF)
+                                        continue;
+
+                                for (; j < 4; j++) {
+                                        bh = sdata->s_spar_map[j];
+                                        if (!bh)
+                                                continue;
+
+                                        st = (struct sparingTable *)bh->b_data;
+                                        mapEntry = st->mapEntry[l];
+                                        mapEntry.origLocation =
+                                                        cpu_to_le32(packet);
+                                        memmove(&st->mapEntry[k + 1],
+                                                &st->mapEntry[k],
+                                                (l - k) *
+                                                sizeof(struct sparingEntry));
+                                        st->mapEntry[k] = mapEntry;
+                                        udf_update_tag((char *)st,
+                                                sizeof(struct sparingTable) +
+                                                reallocationTableLen *
+                                                sizeof(struct sparingEntry));
+                                        mark_buffer_dirty(bh);
                                 }
+                                *new_block =
+                                        le32_to_cpu(
+                                              st->mapEntry[k].mappedLocation) +
+                                        ((old_block - map->s_partition_root) &
+                                         (sdata->s_packet_len - 1));
+                                return 0;
                         }
 
                         return 1;
                 } /* if old_block */
         }
 
-        if (i == UDF_SB_NUMPARTS(sb)) {
+        if (i == sbi->s_partitions) {
                 /* outside of partitions */
                 /* for now, fail =) */
                 return 1;
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 4360c7a05743..f3ac4abfc946 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -33,8 +33,8 @@
  *  10/17/98      added freespace count for "df"
  *  11/11/98 gr   added novrs option
  *  11/26/98 dgb  added fileset,anchor mount options
- *  12/06/98 blf  really hosed things royally. vat/sparing support. sequenced vol descs
- *                rewrote option handling based on isofs
+ *  12/06/98 blf  really hosed things royally. vat/sparing support. sequenced
+ *                vol descs. rewrote option handling based on isofs
  *  12/20/98      find the free space bitmap (if it exists)
  */
 
@@ -52,6 +52,9 @@
 #include <linux/buffer_head.h>
 #include <linux/vfs.h>
 #include <linux/vmalloc.h>
+#include <linux/errno.h>
+#include <linux/mount.h>
+#include <linux/seq_file.h>
 #include <asm/byteorder.h>
 
 #include <linux/udf_fs.h>
@@ -70,6 +73,8 @@
 #define VDS_POS_TERMINATING_DESC        6
 #define VDS_POS_LENGTH                  7
 
+#define UDF_DEFAULT_BLOCKSIZE 2048
+
 static char error_buf[1024];
 
 /* These are the "meat" - everything else is stuffing */
@@ -94,6 +99,17 @@ static void udf_open_lvid(struct super_block *);
 static void udf_close_lvid(struct super_block *);
 static unsigned int udf_count_free(struct super_block *);
 static int udf_statfs(struct dentry *, struct kstatfs *);
+static int udf_show_options(struct seq_file *, struct vfsmount *);
+
+struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
+{
+        struct logicalVolIntegrityDesc *lvid =
+                (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
+        __u32 number_of_partitions = le32_to_cpu(lvid->numOfPartitions);
+        __u32 offset = number_of_partitions * 2 *
+                                sizeof(uint32_t)/sizeof(uint8_t);
+        return (struct logicalVolIntegrityDescImpUse *)&(lvid->impUse[offset]);
+}
 
 /* UDF filesystem type */
 static int udf_get_sb(struct file_system_type *fs_type,
@@ -116,7 +132,7 @@ static struct kmem_cache *udf_inode_cachep;
 static struct inode *udf_alloc_inode(struct super_block *sb)
 {
         struct udf_inode_info *ei;
-        ei = (struct udf_inode_info *)kmem_cache_alloc(udf_inode_cachep, GFP_KERNEL);
+        ei = kmem_cache_alloc(udf_inode_cachep, GFP_KERNEL);
         if (!ei)
                 return NULL;
 
@@ -170,6 +186,7 @@ static const struct super_operations udf_sb_ops = {
         .write_super    = udf_write_super,
         .statfs         = udf_statfs,
         .remount_fs     = udf_remount_fs,
+        .show_options   = udf_show_options,
 };
 
 struct udf_options {
@@ -218,6 +235,79 @@ static void __exit exit_udf_fs(void)
 module_init(init_udf_fs)
 module_exit(exit_udf_fs)
 
+static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count)
+{
+        struct udf_sb_info *sbi = UDF_SB(sb);
+
+        sbi->s_partmaps = kcalloc(count, sizeof(struct udf_part_map),
+                                  GFP_KERNEL);
+        if (!sbi->s_partmaps) {
+                udf_error(sb, __FUNCTION__,
+                          "Unable to allocate space for %d partition maps",
+                          count);
+                sbi->s_partitions = 0;
+                return -ENOMEM;
+        }
+
+        sbi->s_partitions = count;
+        return 0;
+}
+
+static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt)
+{
+        struct super_block *sb = mnt->mnt_sb;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+
+        if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT))
+                seq_puts(seq, ",nostrict");
+        if (sb->s_blocksize != UDF_DEFAULT_BLOCKSIZE)
+                seq_printf(seq, ",bs=%lu", sb->s_blocksize);
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
+                seq_puts(seq, ",unhide");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
+                seq_puts(seq, ",undelete");
+        if (!UDF_QUERY_FLAG(sb, UDF_FLAG_USE_AD_IN_ICB))
+                seq_puts(seq, ",noadinicb");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_USE_SHORT_AD))
+                seq_puts(seq, ",shortad");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_FORGET))
+                seq_puts(seq, ",uid=forget");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_IGNORE))
+                seq_puts(seq, ",uid=ignore");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_FORGET))
+                seq_puts(seq, ",gid=forget");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_IGNORE))
+                seq_puts(seq, ",gid=ignore");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET))
+                seq_printf(seq, ",uid=%u", sbi->s_uid);
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET))
+                seq_printf(seq, ",gid=%u", sbi->s_gid);
+        if (sbi->s_umask != 0)
+                seq_printf(seq, ",umask=%o", sbi->s_umask);
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET))
+                seq_printf(seq, ",session=%u", sbi->s_session);
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_LASTBLOCK_SET))
+                seq_printf(seq, ",lastblock=%u", sbi->s_last_block);
+        /*
+         * s_anchor[2] could be zeroed out in case there is no anchor
+         * in the specified block, but then the "anchor=N" option
+         * originally given by the user wasn't effective, so it's OK
+         * if we don't show it.
+         */
+        if (sbi->s_anchor[2] != 0)
+                seq_printf(seq, ",anchor=%u", sbi->s_anchor[2]);
+        /*
+         * volume, partition, fileset and rootdir seem to be ignored
+         * currently
+         */
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8))
+                seq_puts(seq, ",utf8");
+        if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP) && sbi->s_nls_map)
+                seq_printf(seq, ",iocharset=%s", sbi->s_nls_map->charset);
+
+        return 0;
+}
+
 /*
  * udf_parse_options
  *
@@ -310,13 +400,14 @@ static match_table_t tokens = {
         {Opt_err,       NULL}
 };
 
-static int udf_parse_options(char *options, struct udf_options *uopt)
+static int udf_parse_options(char *options, struct udf_options *uopt,
+                             bool remount)
 {
         char *p;
         int option;
 
         uopt->novrs = 0;
-        uopt->blocksize = 2048;
+        uopt->blocksize = UDF_DEFAULT_BLOCKSIZE;
         uopt->partition = 0xFFFF;
         uopt->session = 0xFFFFFFFF;
         uopt->lastblock = 0;
@@ -386,11 +477,15 @@ static int udf_parse_options(char *options, struct udf_options *uopt)
                         if (match_int(args, &option))
                                 return 0;
                         uopt->session = option;
+                        if (!remount)
+                                uopt->flags |= (1 << UDF_FLAG_SESSION_SET);
                         break;
                 case Opt_lastblock:
                         if (match_int(args, &option))
                                 return 0;
                         uopt->lastblock = option;
+                        if (!remount)
+                                uopt->flags |= (1 << UDF_FLAG_LASTBLOCK_SET);
                         break;
                 case Opt_anchor:
                         if (match_int(args, &option))
@@ -447,7 +542,7 @@ static int udf_parse_options(char *options, struct udf_options *uopt)
         return 1;
 }
 
-void udf_write_super(struct super_block *sb)
+static void udf_write_super(struct super_block *sb)
 {
         lock_kernel();
 
@@ -461,22 +556,23 @@ void udf_write_super(struct super_block *sb)
 static int udf_remount_fs(struct super_block *sb, int *flags, char *options)
 {
         struct udf_options uopt;
+        struct udf_sb_info *sbi = UDF_SB(sb);
 
-        uopt.flags = UDF_SB(sb)->s_flags;
-        uopt.uid   = UDF_SB(sb)->s_uid;
-        uopt.gid   = UDF_SB(sb)->s_gid;
-        uopt.umask = UDF_SB(sb)->s_umask;
+        uopt.flags = sbi->s_flags;
+        uopt.uid   = sbi->s_uid;
+        uopt.gid   = sbi->s_gid;
+        uopt.umask = sbi->s_umask;
 
-        if (!udf_parse_options(options, &uopt))
+        if (!udf_parse_options(options, &uopt, true))
                 return -EINVAL;
 
-        UDF_SB(sb)->s_flags = uopt.flags;
-        UDF_SB(sb)->s_uid   = uopt.uid;
-        UDF_SB(sb)->s_gid   = uopt.gid;
-        UDF_SB(sb)->s_umask = uopt.umask;
+        sbi->s_flags = uopt.flags;
+        sbi->s_uid   = uopt.uid;
+        sbi->s_gid   = uopt.gid;
+        sbi->s_umask = uopt.umask;
 
-        if (UDF_SB_LVIDBH(sb)) {
-                int write_rev = le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev);
+        if (sbi->s_lvid_bh) {
+                int write_rev = le16_to_cpu(udf_sb_lvidiu(sbi)->minUDFWriteRev);
                 if (write_rev > UDF_MAX_WRITE_VERSION)
                         *flags |= MS_RDONLY;
         }
@@ -538,17 +634,19 @@ static int udf_vrs(struct super_block *sb, int silent)
         int iso9660 = 0;
         int nsr02 = 0;
         int nsr03 = 0;
+        struct udf_sb_info *sbi;
 
         /* Block size must be a multiple of 512 */
         if (sb->s_blocksize & 511)
                 return 0;
+        sbi = UDF_SB(sb);
 
         if (sb->s_blocksize < sizeof(struct volStructDesc))
                 sectorsize = sizeof(struct volStructDesc);
         else
                 sectorsize = sb->s_blocksize;
 
-        sector += (UDF_SB_SESSION(sb) << sb->s_blocksize_bits);
+        sector += (sbi->s_session << sb->s_blocksize_bits);
 
         udf_debug("Starting at sector %u (%ld byte sectors)\n",
                   (sector >> sb->s_blocksize_bits), sb->s_blocksize);
@@ -561,47 +659,52 @@ static int udf_vrs(struct super_block *sb, int silent)
 
                 /* Look for ISO  descriptors */
                 vsd = (struct volStructDesc *)(bh->b_data +
-                                               (sector & (sb->s_blocksize - 1)));
+                                              (sector & (sb->s_blocksize - 1)));
 
                 if (vsd->stdIdent[0] == 0) {
                         brelse(bh);
                         break;
-                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001, VSD_STD_ID_LEN)) {
+                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001,
+                                    VSD_STD_ID_LEN)) {
                         iso9660 = sector;
                         switch (vsd->structType) {
                         case 0:
                                 udf_debug("ISO9660 Boot Record found\n");
                                 break;
                         case 1:
-                                udf_debug
-                                    ("ISO9660 Primary Volume Descriptor found\n");
+                                udf_debug("ISO9660 Primary Volume Descriptor "
+                                          "found\n");
                                 break;
                         case 2:
-                                udf_debug
-                                    ("ISO9660 Supplementary Volume Descriptor found\n");
+                                udf_debug("ISO9660 Supplementary Volume "
+                                          "Descriptor found\n");
                                 break;
                         case 3:
-                                udf_debug
-                                    ("ISO9660 Volume Partition Descriptor found\n");
+                                udf_debug("ISO9660 Volume Partition Descriptor "
+                                          "found\n");
                                 break;
                         case 255:
-                                udf_debug
-                                    ("ISO9660 Volume Descriptor Set Terminator found\n");
+                                udf_debug("ISO9660 Volume Descriptor Set "
+                                          "Terminator found\n");
                                 break;
                         default:
                                 udf_debug("ISO9660 VRS (%u) found\n",
                                           vsd->structType);
                                 break;
                         }
-                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_BEA01, VSD_STD_ID_LEN)) {
-                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_TEA01, VSD_STD_ID_LEN)) {
+                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_BEA01,
+                                    VSD_STD_ID_LEN))
+                        ; /* nothing */
+                else if (!strncmp(vsd->stdIdent, VSD_STD_ID_TEA01,
+                                    VSD_STD_ID_LEN)) {
                         brelse(bh);
                         break;
-                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR02, VSD_STD_ID_LEN)) {
+                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR02,
+                                    VSD_STD_ID_LEN))
                         nsr02 = sector;
-                } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR03, VSD_STD_ID_LEN)) {
+                else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR03,
+                                    VSD_STD_ID_LEN))
                         nsr03 = sector;
-                }
                 brelse(bh);
         }
 
@@ -609,7 +712,7 @@ static int udf_vrs(struct super_block *sb, int silent)
                 return nsr03;
         else if (nsr02)
                 return nsr02;
-        else if (sector - (UDF_SB_SESSION(sb) << sb->s_blocksize_bits) == 32768)
+        else if (sector - (sbi->s_session << sb->s_blocksize_bits) == 32768)
                 return -1;
         else
                 return 0;
@@ -634,11 +737,15 @@ static int udf_vrs(struct super_block *sb, int silent)
  */
 static void udf_find_anchor(struct super_block *sb)
 {
-        int lastblock = UDF_SB_LASTBLOCK(sb);
+        int lastblock;
         struct buffer_head *bh = NULL;
         uint16_t ident;
         uint32_t location;
         int i;
+        struct udf_sb_info *sbi;
+
+        sbi = UDF_SB(sb);
+        lastblock = sbi->s_last_block;
 
         if (lastblock) {
                 int varlastblock = udf_variable_to_fixed(lastblock);
@@ -658,57 +765,83 @@ static void udf_find_anchor(struct super_block *sb)
                  *  however, if the disc isn't closed, it could be 512 */
 
                 for (i = 0; !lastblock && i < ARRAY_SIZE(last); i++) {
-                        if (last[i] < 0 || !(bh = sb_bread(sb, last[i]))) {
-                                ident = location = 0;
-                        } else {
-                                ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
-                                location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
-                                brelse(bh);
+                        ident = location = 0;
+                        if (last[i] >= 0) {
+                                bh = sb_bread(sb, last[i]);
+                                if (bh) {
+                                        tag *t = (tag *)bh->b_data;
+                                        ident = le16_to_cpu(t->tagIdent);
+                                        location = le32_to_cpu(t->tagLocation);
+                                        brelse(bh);
+                                }
                         }
 
                         if (ident == TAG_IDENT_AVDP) {
-                                if (location == last[i] - UDF_SB_SESSION(sb)) {
-                                        lastblock = UDF_SB_ANCHOR(sb)[0] = last[i] - UDF_SB_SESSION(sb);
-                                        UDF_SB_ANCHOR(sb)[1] = last[i] - 256 - UDF_SB_SESSION(sb);
-                                } else if (location == udf_variable_to_fixed(last[i]) - UDF_SB_SESSION(sb)) {
+                                if (location == last[i] - sbi->s_session) {
+                                        lastblock = last[i] - sbi->s_session;
+                                        sbi->s_anchor[0] = lastblock;
+                                        sbi->s_anchor[1] = lastblock - 256;
+                                } else if (location ==
+                                                udf_variable_to_fixed(last[i]) -
+                                                        sbi->s_session) {
                                         UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
-                                        lastblock = UDF_SB_ANCHOR(sb)[0] = udf_variable_to_fixed(last[i]) - UDF_SB_SESSION(sb);
-                                        UDF_SB_ANCHOR(sb)[1] = lastblock - 256 - UDF_SB_SESSION(sb);
+                                        lastblock =
+                                                udf_variable_to_fixed(last[i]) -
+                                                        sbi->s_session;
+                                        sbi->s_anchor[0] = lastblock;
+                                        sbi->s_anchor[1] = lastblock - 256 -
+                                                                sbi->s_session;
                                 } else {
-                                        udf_debug("Anchor found at block %d, location mismatch %d.\n",
+                                        udf_debug("Anchor found at block %d, "
+                                                  "location mismatch %d.\n",
                                                   last[i], location);
                                 }
-                        } else if (ident == TAG_IDENT_FE || ident == TAG_IDENT_EFE) {
+                        } else if (ident == TAG_IDENT_FE ||
+                                        ident == TAG_IDENT_EFE) {
                                 lastblock = last[i];
-                                UDF_SB_ANCHOR(sb)[3] = 512;
+                                sbi->s_anchor[3] = 512;
                         } else {
-                                if (last[i] < 256 || !(bh = sb_bread(sb, last[i] - 256))) {
-                                        ident = location = 0;
-                                } else {
-                                        ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
-                                        location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
-                                        brelse(bh);
+                                ident = location = 0;
+                                if (last[i] >= 256) {
+                                        bh = sb_bread(sb, last[i] - 256);
+                                        if (bh) {
+                                                tag *t = (tag *)bh->b_data;
+                                                ident = le16_to_cpu(
+                                                                t->tagIdent);
+                                                location = le32_to_cpu(
+                                                                t->tagLocation);
+                                                brelse(bh);
+                                        }
                                 }
 
                                 if (ident == TAG_IDENT_AVDP &&
-                                    location == last[i] - 256 - UDF_SB_SESSION(sb)) {
+                                    location == last[i] - 256 -
+                                                sbi->s_session) {
                                         lastblock = last[i];
-                                        UDF_SB_ANCHOR(sb)[1] = last[i] - 256;
+                                        sbi->s_anchor[1] = last[i] - 256;
                                 } else {
-                                        if (last[i] < 312 + UDF_SB_SESSION(sb) ||
-                                            !(bh = sb_bread(sb, last[i] - 312 - UDF_SB_SESSION(sb)))) {
-                                                ident = location = 0;
-                                        } else {
-                                                ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
-                                                location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
-                                                brelse(bh);
+                                        ident = location = 0;
+                                        if (last[i] >= 312 + sbi->s_session) {
+                                                bh = sb_bread(sb,
+                                                                last[i] - 312 -
+                                                                sbi->s_session);
+                                                if (bh) {
+                                                        tag *t = (tag *)
+                                                                 bh->b_data;
+                                                        ident = le16_to_cpu(
+                                                                t->tagIdent);
+                                                        location = le32_to_cpu(
+                                                                t->tagLocation);
+                                                        brelse(bh);
+                                                }
                                         }
 
                                         if (ident == TAG_IDENT_AVDP &&
                                             location == udf_variable_to_fixed(last[i]) - 256) {
-                                                UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+                                                UDF_SET_FLAG(sb,
+                                                             UDF_FLAG_VARCONV);
                                                 lastblock = udf_variable_to_fixed(last[i]);
-                                                UDF_SB_ANCHOR(sb)[1] = lastblock - 256;
+                                                sbi->s_anchor[1] = lastblock - 256;
                                         }
                                 }
                         }
@@ -716,10 +849,12 @@ static void udf_find_anchor(struct super_block *sb)
         }
 
         if (!lastblock) {
-                /* We havn't found the lastblock. check 312 */
-                if ((bh = sb_bread(sb, 312 + UDF_SB_SESSION(sb)))) {
-                        ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
-                        location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
+                /* We haven't found the lastblock. check 312 */
+                bh = sb_bread(sb, 312 + sbi->s_session);
+                if (bh) {
+                        tag *t = (tag *)bh->b_data;
+                        ident = le16_to_cpu(t->tagIdent);
+                        location = le32_to_cpu(t->tagLocation);
                         brelse(bh);
 
                         if (ident == TAG_IDENT_AVDP && location == 256)
@@ -727,29 +862,33 @@ static void udf_find_anchor(struct super_block *sb)
                 }
         }
 
-        for (i = 0; i < ARRAY_SIZE(UDF_SB_ANCHOR(sb)); i++) {
-                if (UDF_SB_ANCHOR(sb)[i]) {
-                        if (!(bh = udf_read_tagged(sb, UDF_SB_ANCHOR(sb)[i],
-                                                   UDF_SB_ANCHOR(sb)[i], &ident))) {
-                                UDF_SB_ANCHOR(sb)[i] = 0;
-                        } else {
+        for (i = 0; i < ARRAY_SIZE(sbi->s_anchor); i++) {
+                if (sbi->s_anchor[i]) {
+                        bh = udf_read_tagged(sb, sbi->s_anchor[i],
+                                             sbi->s_anchor[i], &ident);
+                        if (!bh)
+                                sbi->s_anchor[i] = 0;
+                        else {
                                 brelse(bh);
                                 if ((ident != TAG_IDENT_AVDP) &&
-                                    (i || (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE))) {
-                                        UDF_SB_ANCHOR(sb)[i] = 0;
-                                }
+                                    (i || (ident != TAG_IDENT_FE &&
+                                           ident != TAG_IDENT_EFE)))
+                                        sbi->s_anchor[i] = 0;
                         }
                 }
         }
 
-        UDF_SB_LASTBLOCK(sb) = lastblock;
+        sbi->s_last_block = lastblock;
 }
 
-static int udf_find_fileset(struct super_block *sb, kernel_lb_addr *fileset, kernel_lb_addr *root)
+static int udf_find_fileset(struct super_block *sb,
+                            kernel_lb_addr *fileset,
+                            kernel_lb_addr *root)
 {
         struct buffer_head *bh = NULL;
         long lastblock;
         uint16_t ident;
+        struct udf_sb_info *sbi;
 
         if (fileset->logicalBlockNum != 0xFFFFFFFF ||
             fileset->partitionReferenceNum != 0xFFFF) {
@@ -764,22 +903,27 @@ static int udf_find_fileset(struct super_block *sb, kernel_lb_addr *fileset, ker
 
         }
 
-        if (!bh) { /* Search backwards through the partitions */
+        sbi = UDF_SB(sb);
+        if (!bh) {
+                /* Search backwards through the partitions */
                 kernel_lb_addr newfileset;
 
 /* --> cvg: FIXME - is it reasonable? */
                 return 1;
 
-                for (newfileset.partitionReferenceNum = UDF_SB_NUMPARTS(sb) - 1;
+                for (newfileset.partitionReferenceNum = sbi->s_partitions - 1;
                      (newfileset.partitionReferenceNum != 0xFFFF &&
                       fileset->logicalBlockNum == 0xFFFFFFFF &&
                       fileset->partitionReferenceNum == 0xFFFF);
                      newfileset.partitionReferenceNum--) {
-                        lastblock = UDF_SB_PARTLEN(sb, newfileset.partitionReferenceNum);
+                        lastblock = sbi->s_partmaps
+                                        [newfileset.partitionReferenceNum]
+                                                .s_partition_len;
                         newfileset.logicalBlockNum = 0;
 
                         do {
-                                bh = udf_read_ptagged(sb, newfileset, 0, &ident);
+                                bh = udf_read_ptagged(sb, newfileset, 0,
+                                                      &ident);
                                 if (!bh) {
                                         newfileset.logicalBlockNum++;
                                         continue;
@@ -789,11 +933,12 @@ static int udf_find_fileset(struct super_block *sb, kernel_lb_addr *fileset, ker
                                 case TAG_IDENT_SBD:
                                 {
                                         struct spaceBitmapDesc *sp;
-                                        sp = (struct spaceBitmapDesc *)bh->b_data;
+                                        sp = (struct spaceBitmapDesc *)
+                                                                bh->b_data;
                                         newfileset.logicalBlockNum += 1 +
                                                 ((le32_to_cpu(sp->numOfBytes) +
-                                                  sizeof(struct spaceBitmapDesc) - 1)
-                                                 >> sb->s_blocksize_bits);
+                                                  sizeof(struct spaceBitmapDesc)
+                                                  - 1) >> sb->s_blocksize_bits);
                                         brelse(bh);
                                         break;
                                 }
@@ -818,7 +963,7 @@ static int udf_find_fileset(struct super_block *sb, kernel_lb_addr *fileset, ker
                           fileset->logicalBlockNum,
                           fileset->partitionReferenceNum);
 
-                UDF_SB_PARTITION(sb) = fileset->partitionReferenceNum;
+                sbi->s_partition = fileset->partitionReferenceNum;
                 udf_load_fileset(sb, bh, root);
                 brelse(bh);
                 return 0;
@@ -840,26 +985,26 @@ static void udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh)
                               lets_to_cpu(pvoldesc->recordingDateAndTime))) {
                 kernel_timestamp ts;
                 ts = lets_to_cpu(pvoldesc->recordingDateAndTime);
-                udf_debug("recording time %ld/%ld, %04u/%02u/%02u %02u:%02u (%x)\n",
+                udf_debug("recording time %ld/%ld, %04u/%02u/%02u"
+                          " %02u:%02u (%x)\n",
                           recording, recording_usec,
                           ts.year, ts.month, ts.day, ts.hour,
                           ts.minute, ts.typeAndTimezone);
-                UDF_SB_RECORDTIME(sb).tv_sec = recording;
-                UDF_SB_RECORDTIME(sb).tv_nsec = recording_usec * 1000;
+                UDF_SB(sb)->s_record_time.tv_sec = recording;
+                UDF_SB(sb)->s_record_time.tv_nsec = recording_usec * 1000;
         }
 
-        if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32)) {
+        if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32))
                 if (udf_CS0toUTF8(&outstr, &instr)) {
-                        strncpy(UDF_SB_VOLIDENT(sb), outstr.u_name,
+                        strncpy(UDF_SB(sb)->s_volume_ident, outstr.u_name,
                                 outstr.u_len > 31 ? 31 : outstr.u_len);
-                        udf_debug("volIdent[] = '%s'\n", UDF_SB_VOLIDENT(sb));
+                        udf_debug("volIdent[] = '%s'\n",
+                                        UDF_SB(sb)->s_volume_ident);
                 }
-        }
 
-        if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128)) {
+        if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128))
                 if (udf_CS0toUTF8(&outstr, &instr))
                         udf_debug("volSetIdent[] = '%s'\n", outstr.u_name);
-        }
 }
 
 static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
@@ -871,65 +1016,124 @@ static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
 
         *root = lelb_to_cpu(fset->rootDirectoryICB.extLocation);
 
-        UDF_SB_SERIALNUM(sb) = le16_to_cpu(fset->descTag.tagSerialNum);
+        UDF_SB(sb)->s_serial_number = le16_to_cpu(fset->descTag.tagSerialNum);
 
         udf_debug("Rootdir at block=%d, partition=%d\n",
                   root->logicalBlockNum, root->partitionReferenceNum);
 }
 
+int udf_compute_nr_groups(struct super_block *sb, u32 partition)
+{
+        struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
+        return (map->s_partition_len +
+                (sizeof(struct spaceBitmapDesc) << 3) +
+                (sb->s_blocksize * 8) - 1) /
+                (sb->s_blocksize * 8);
+}
+
+static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index)
+{
+        struct udf_bitmap *bitmap;
+        int nr_groups;
+        int size;
+
+        nr_groups = udf_compute_nr_groups(sb, index);
+        size = sizeof(struct udf_bitmap) +
+                (sizeof(struct buffer_head *) * nr_groups);
+
+        if (size <= PAGE_SIZE)
+                bitmap = kmalloc(size, GFP_KERNEL);
+        else
+                bitmap = vmalloc(size); /* TODO: get rid of vmalloc */
+
+        if (bitmap == NULL) {
+                udf_error(sb, __FUNCTION__,
+                          "Unable to allocate space for bitmap "
+                          "and %d buffer_head pointers", nr_groups);
+                return NULL;
+        }
+
+        memset(bitmap, 0x00, size);
+        bitmap->s_block_bitmap = (struct buffer_head **)(bitmap + 1);
+        bitmap->s_nr_groups = nr_groups;
+        return bitmap;
+}
+
 static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
 {
         struct partitionDesc *p;
         int i;
+        struct udf_part_map *map;
+        struct udf_sb_info *sbi;
 
         p = (struct partitionDesc *)bh->b_data;
+        sbi = UDF_SB(sb);
 
-        for (i = 0; i < UDF_SB_NUMPARTS(sb); i++) {
+        for (i = 0; i < sbi->s_partitions; i++) {
+                map = &sbi->s_partmaps[i];
                 udf_debug("Searching map: (%d == %d)\n",
-                          UDF_SB_PARTMAPS(sb)[i].s_partition_num, le16_to_cpu(p->partitionNumber));
-                if (UDF_SB_PARTMAPS(sb)[i].s_partition_num == le16_to_cpu(p->partitionNumber)) {
-                        UDF_SB_PARTLEN(sb,i) = le32_to_cpu(p->partitionLength); /* blocks */
-                        UDF_SB_PARTROOT(sb,i) = le32_to_cpu(p->partitionStartingLocation);
-                        if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_READ_ONLY)
-                                UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_READ_ONLY;
-                        if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_WRITE_ONCE)
-                                UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_WRITE_ONCE;
-                        if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_REWRITABLE)
-                                UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_REWRITABLE;
-                        if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_OVERWRITABLE)
-                                UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_OVERWRITABLE;
-
-                        if (!strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR02) ||
-                            !strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR03)) {
+                          map->s_partition_num,
+                          le16_to_cpu(p->partitionNumber));
+                if (map->s_partition_num ==
+                                le16_to_cpu(p->partitionNumber)) {
+                        map->s_partition_len =
+                                le32_to_cpu(p->partitionLength); /* blocks */
+                        map->s_partition_root =
+                                le32_to_cpu(p->partitionStartingLocation);
+                        if (p->accessType ==
+                                        cpu_to_le32(PD_ACCESS_TYPE_READ_ONLY))
+                                map->s_partition_flags |=
+                                                UDF_PART_FLAG_READ_ONLY;
+                        if (p->accessType ==
+                                        cpu_to_le32(PD_ACCESS_TYPE_WRITE_ONCE))
+                                map->s_partition_flags |=
+                                                UDF_PART_FLAG_WRITE_ONCE;
+                        if (p->accessType ==
+                                        cpu_to_le32(PD_ACCESS_TYPE_REWRITABLE))
+                                map->s_partition_flags |=
+                                                UDF_PART_FLAG_REWRITABLE;
+                        if (p->accessType ==
+                                    cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
+                                map->s_partition_flags |=
+                                                UDF_PART_FLAG_OVERWRITABLE;
+
+                        if (!strcmp(p->partitionContents.ident,
+                                    PD_PARTITION_CONTENTS_NSR02) ||
+                            !strcmp(p->partitionContents.ident,
+                                    PD_PARTITION_CONTENTS_NSR03)) {
                                 struct partitionHeaderDesc *phd;
 
-                                phd = (struct partitionHeaderDesc *)(p->partitionContentsUse);
+                                phd = (struct partitionHeaderDesc *)
+                                                (p->partitionContentsUse);
                                 if (phd->unallocSpaceTable.extLength) {
                                         kernel_lb_addr loc = {
                                                 .logicalBlockNum = le32_to_cpu(phd->unallocSpaceTable.extPosition),
                                                 .partitionReferenceNum = i,
                                         };
 
-                                        UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table =
+                                        map->s_uspace.s_table =
                                                 udf_iget(sb, loc);
-                                        if (!UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table) {
+                                        if (!map->s_uspace.s_table) {
                                                 udf_debug("cannot load unallocSpaceTable (part %d)\n", i);
                                                 return 1;
                                         }
-                                        UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_UNALLOC_TABLE;
+                                        map->s_partition_flags |=
+                                                UDF_PART_FLAG_UNALLOC_TABLE;
                                         udf_debug("unallocSpaceTable (part %d) @ %ld\n",
-                                                  i, UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table->i_ino);
+                                                  i, map->s_uspace.s_table->i_ino);
                                 }
                                 if (phd->unallocSpaceBitmap.extLength) {
-                                        UDF_SB_ALLOC_BITMAP(sb, i, s_uspace);
-                                        if (UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap != NULL) {
-                                                UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extLength =
+                                        struct udf_bitmap *bitmap =
+                                                udf_sb_alloc_bitmap(sb, i);
+                                        map->s_uspace.s_bitmap = bitmap;
+                                        if (bitmap != NULL) {
+                                                bitmap->s_extLength =
                                                         le32_to_cpu(phd->unallocSpaceBitmap.extLength);
-                                                UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extPosition =
+                                                bitmap->s_extPosition =
                                                         le32_to_cpu(phd->unallocSpaceBitmap.extPosition);
-                                                UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_UNALLOC_BITMAP;
+                                                map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
                                                 udf_debug("unallocSpaceBitmap (part %d) @ %d\n",
-                                                          i, UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extPosition);
+                                                          i, bitmap->s_extPosition);
                                         }
                                 }
                                 if (phd->partitionIntegrityTable.extLength)
@@ -940,40 +1144,45 @@ static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
                                                 .partitionReferenceNum = i,
                                         };
 
-                                        UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table =
+                                        map->s_fspace.s_table =
                                                 udf_iget(sb, loc);
-                                        if (!UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table) {
+                                        if (!map->s_fspace.s_table) {
                                                 udf_debug("cannot load freedSpaceTable (part %d)\n", i);
                                                 return 1;
                                         }
-                                        UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_FREED_TABLE;
+                                        map->s_partition_flags |=
+                                                UDF_PART_FLAG_FREED_TABLE;
                                         udf_debug("freedSpaceTable (part %d) @ %ld\n",
-                                                  i, UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table->i_ino);
+                                                  i, map->s_fspace.s_table->i_ino);
                                 }
                                 if (phd->freedSpaceBitmap.extLength) {
-                                        UDF_SB_ALLOC_BITMAP(sb, i, s_fspace);
-                                        if (UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap != NULL) {
-                                                UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extLength =
+                                        struct udf_bitmap *bitmap =
+                                                udf_sb_alloc_bitmap(sb, i);
+                                        map->s_fspace.s_bitmap = bitmap;
+                                        if (bitmap != NULL) {
+                                                bitmap->s_extLength =
                                                         le32_to_cpu(phd->freedSpaceBitmap.extLength);
-                                                UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extPosition =
+                                                bitmap->s_extPosition =
                                                         le32_to_cpu(phd->freedSpaceBitmap.extPosition);
-                                                UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_FREED_BITMAP;
+                                                map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
                                                 udf_debug("freedSpaceBitmap (part %d) @ %d\n",
-                                                          i, UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extPosition);
+                                                          i, bitmap->s_extPosition);
                                         }
                                 }
                         }
                         break;
                 }
         }
-        if (i == UDF_SB_NUMPARTS(sb)) {
+        if (i == sbi->s_partitions)
                 udf_debug("Partition (%d) not found in partition map\n",
                           le16_to_cpu(p->partitionNumber));
-        } else {
-                udf_debug("Partition (%d:%d type %x) starts at physical %d, block length %d\n",
-                          le16_to_cpu(p->partitionNumber), i, UDF_SB_PARTTYPE(sb,i),
-                          UDF_SB_PARTROOT(sb,i), UDF_SB_PARTLEN(sb,i));
-        }
+        else
+                udf_debug("Partition (%d:%d type %x) starts at physical %d, "
+                          "block length %d\n",
+                          le16_to_cpu(p->partitionNumber), i,
+                          map->s_partition_type,
+                          map->s_partition_root,
+                          map->s_partition_len);
         return 0;
 }
 
@@ -983,70 +1192,105 @@ static int udf_load_logicalvol(struct super_block *sb, struct buffer_head *bh,
         struct logicalVolDesc *lvd;
         int i, j, offset;
         uint8_t type;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct genericPartitionMap *gpm;
 
         lvd = (struct logicalVolDesc *)bh->b_data;
 
-        UDF_SB_ALLOC_PARTMAPS(sb, le32_to_cpu(lvd->numPartitionMaps));
+        i = udf_sb_alloc_partition_maps(sb, le32_to_cpu(lvd->numPartitionMaps));
+        if (i != 0)
+                return i;
 
         for (i = 0, offset = 0;
-             i < UDF_SB_NUMPARTS(sb) && offset < le32_to_cpu(lvd->mapTableLength);
-             i++, offset += ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapLength) {
-                type = ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapType;
+             i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength);
+             i++, offset += gpm->partitionMapLength) {
+                struct udf_part_map *map = &sbi->s_partmaps[i];
+                gpm = (struct genericPartitionMap *)
+                                &(lvd->partitionMaps[offset]);
+                type = gpm->partitionMapType;
                 if (type == 1) {
-                        struct genericPartitionMap1 *gpm1 = (struct genericPartitionMap1 *)&(lvd->partitionMaps[offset]);
-                        UDF_SB_PARTTYPE(sb,i) = UDF_TYPE1_MAP15;
-                        UDF_SB_PARTVSN(sb,i) = le16_to_cpu(gpm1->volSeqNum);
-                        UDF_SB_PARTNUM(sb,i) = le16_to_cpu(gpm1->partitionNum);
-                        UDF_SB_PARTFUNC(sb,i) = NULL;
+                        struct genericPartitionMap1 *gpm1 =
+                                (struct genericPartitionMap1 *)gpm;
+                        map->s_partition_type = UDF_TYPE1_MAP15;
+                        map->s_volumeseqnum = le16_to_cpu(gpm1->volSeqNum);
+                        map->s_partition_num = le16_to_cpu(gpm1->partitionNum);
+                        map->s_partition_func = NULL;
                 } else if (type == 2) {
-                        struct udfPartitionMap2 *upm2 = (struct udfPartitionMap2 *)&(lvd->partitionMaps[offset]);
-                        if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL, strlen(UDF_ID_VIRTUAL))) {
-                                if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0150) {
-                                        UDF_SB_PARTTYPE(sb,i) = UDF_VIRTUAL_MAP15;
-                                        UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_virt15;
-                                } else if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0200) {
-                                        UDF_SB_PARTTYPE(sb,i) = UDF_VIRTUAL_MAP20;
-                                        UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_virt20;
+                        struct udfPartitionMap2 *upm2 =
+                                                (struct udfPartitionMap2 *)gpm;
+                        if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL,
+                                                strlen(UDF_ID_VIRTUAL))) {
+                                u16 suf =
+                                        le16_to_cpu(((__le16 *)upm2->partIdent.
+                                                        identSuffix)[0]);
+                                if (suf == 0x0150) {
+                                        map->s_partition_type =
+                                                        UDF_VIRTUAL_MAP15;
+                                        map->s_partition_func =
+                                                        udf_get_pblock_virt15;
+                                } else if (suf == 0x0200) {
+                                        map->s_partition_type =
+                                                        UDF_VIRTUAL_MAP20;
+                                        map->s_partition_func =
+                                                        udf_get_pblock_virt20;
                                 }
-                        } else if (!strncmp(upm2->partIdent.ident, UDF_ID_SPARABLE, strlen(UDF_ID_SPARABLE))) {
+                        } else if (!strncmp(upm2->partIdent.ident,
+                                                UDF_ID_SPARABLE,
+                                                strlen(UDF_ID_SPARABLE))) {
                                 uint32_t loc;
                                 uint16_t ident;
                                 struct sparingTable *st;
-                                struct sparablePartitionMap *spm = (struct sparablePartitionMap *)&(lvd->partitionMaps[offset]);
+                                struct sparablePartitionMap *spm =
+                                        (struct sparablePartitionMap *)gpm;
 
-                                UDF_SB_PARTTYPE(sb,i) = UDF_SPARABLE_MAP15;
-                                UDF_SB_TYPESPAR(sb,i).s_packet_len = le16_to_cpu(spm->packetLength);
+                                map->s_partition_type = UDF_SPARABLE_MAP15;
+                                map->s_type_specific.s_sparing.s_packet_len =
+                                                le16_to_cpu(spm->packetLength);
                                 for (j = 0; j < spm->numSparingTables; j++) {
-                                        loc = le32_to_cpu(spm->locSparingTable[j]);
-                                        UDF_SB_TYPESPAR(sb,i).s_spar_map[j] =
-                                                udf_read_tagged(sb, loc, loc, &ident);
-                                        if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL) {
-                                                st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,i).s_spar_map[j]->b_data;
-                                                if (ident != 0 ||
-                                                    strncmp(st->sparingIdent.ident, UDF_ID_SPARING, strlen(UDF_ID_SPARING))) {
-                                                        brelse(UDF_SB_TYPESPAR(sb,i).s_spar_map[j]);
-                                                        UDF_SB_TYPESPAR(sb,i).s_spar_map[j] = NULL;
+                                        struct buffer_head *bh2;
+
+                                        loc = le32_to_cpu(
+                                                spm->locSparingTable[j]);
+                                        bh2 = udf_read_tagged(sb, loc, loc,
+                                                             &ident);
+                                        map->s_type_specific.s_sparing.
+                                                        s_spar_map[j] = bh2;
+
+                                        if (bh2 != NULL) {
+                                                st = (struct sparingTable *)
+                                                                bh2->b_data;
+                                                if (ident != 0 || strncmp(
+                                                        st->sparingIdent.ident,
+                                                        UDF_ID_SPARING,
+                                                        strlen(UDF_ID_SPARING))) {
+                                                        brelse(bh2);
+                                                        map->s_type_specific.
+                                                                s_sparing.
+                                                                s_spar_map[j] =
+                                                                        NULL;
                                                 }
                                         }
                                 }
-                                UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_spar15;
+                                map->s_partition_func = udf_get_pblock_spar15;
                         } else {
-                                udf_debug("Unknown ident: %s\n", upm2->partIdent.ident);
+                                udf_debug("Unknown ident: %s\n",
+                                          upm2->partIdent.ident);
                                 continue;
                         }
-                        UDF_SB_PARTVSN(sb,i) = le16_to_cpu(upm2->volSeqNum);
-                        UDF_SB_PARTNUM(sb,i) = le16_to_cpu(upm2->partitionNum);
+                        map->s_volumeseqnum = le16_to_cpu(upm2->volSeqNum);
+                        map->s_partition_num = le16_to_cpu(upm2->partitionNum);
                 }
                 udf_debug("Partition (%d:%d) type %d on volume %d\n",
-                          i, UDF_SB_PARTNUM(sb,i), type, UDF_SB_PARTVSN(sb,i));
+                          i, map->s_partition_num, type,
+                          map->s_volumeseqnum);
         }
 
         if (fileset) {
                 long_ad *la = (long_ad *)&(lvd->logicalVolContentsUse[0]);
 
                 *fileset = lelb_to_cpu(la->extLocation);
-                udf_debug("FileSet found in LogicalVolDesc at block=%d, partition=%d\n",
-                          fileset->logicalBlockNum,
+                udf_debug("FileSet found in LogicalVolDesc at block=%d, "
+                          "partition=%d\n", fileset->logicalBlockNum,
                           fileset->partitionReferenceNum);
         }
         if (lvd->integritySeqExt.extLength)
@@ -1063,22 +1307,26 @@ static void udf_load_logicalvolint(struct super_block *sb, kernel_extent_ad loc)
 {
         struct buffer_head *bh = NULL;
         uint16_t ident;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct logicalVolIntegrityDesc *lvid;
 
         while (loc.extLength > 0 &&
                (bh = udf_read_tagged(sb, loc.extLocation,
                                      loc.extLocation, &ident)) &&
                ident == TAG_IDENT_LVID) {
-                UDF_SB_LVIDBH(sb) = bh;
+                sbi->s_lvid_bh = bh;
+                lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
 
-                if (UDF_SB_LVID(sb)->nextIntegrityExt.extLength)
-                        udf_load_logicalvolint(sb, leea_to_cpu(UDF_SB_LVID(sb)->nextIntegrityExt));
+                if (lvid->nextIntegrityExt.extLength)
+                        udf_load_logicalvolint(sb,
+                                leea_to_cpu(lvid->nextIntegrityExt));
 
-                if (UDF_SB_LVIDBH(sb) != bh)
+                if (sbi->s_lvid_bh != bh)
                         brelse(bh);
                 loc.extLength -= sb->s_blocksize;
                 loc.extLocation++;
         }
-        if (UDF_SB_LVIDBH(sb) != bh)
+        if (sbi->s_lvid_bh != bh)
                 brelse(bh);
 }
 
@@ -1097,11 +1345,12 @@ static void udf_load_logicalvolint(struct super_block *sb, kernel_extent_ad loc)
  *      July 1, 1997 - Andrew E. Mileski
  *      Written, tested, and released.
  */
-static int udf_process_sequence(struct super_block *sb, long block, long lastblock,
-                                 kernel_lb_addr *fileset)
+static int udf_process_sequence(struct super_block *sb, long block,
+                                long lastblock, kernel_lb_addr *fileset)
 {
         struct buffer_head *bh = NULL;
         struct udf_vds_record vds[VDS_POS_LENGTH];
+        struct udf_vds_record *curr;
         struct generic_desc *gd;
         struct volDescPtr *vdp;
         int done = 0;
@@ -1124,43 +1373,51 @@ static int udf_process_sequence(struct super_block *sb, long block, long lastblo
                 vdsn = le32_to_cpu(gd->volDescSeqNum);
                 switch (ident) {
                 case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */
-                        if (vdsn >= vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum) {
-                                vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum = vdsn;
-                                vds[VDS_POS_PRIMARY_VOL_DESC].block = block;
+                        curr = &vds[VDS_POS_PRIMARY_VOL_DESC];
+                        if (vdsn >= curr->volDescSeqNum) {
+                                curr->volDescSeqNum = vdsn;
+                                curr->block = block;
                         }
                         break;
                 case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */
-                        if (vdsn >= vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum) {
-                                vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum = vdsn;
-                                vds[VDS_POS_VOL_DESC_PTR].block = block;
+                        curr = &vds[VDS_POS_VOL_DESC_PTR];
+                        if (vdsn >= curr->volDescSeqNum) {
+                                curr->volDescSeqNum = vdsn;
+                                curr->block = block;
 
                                 vdp = (struct volDescPtr *)bh->b_data;
-                                next_s = le32_to_cpu(vdp->nextVolDescSeqExt.extLocation);
-                                next_e = le32_to_cpu(vdp->nextVolDescSeqExt.extLength);
+                                next_s = le32_to_cpu(
+                                        vdp->nextVolDescSeqExt.extLocation);
+                                next_e = le32_to_cpu(
+                                        vdp->nextVolDescSeqExt.extLength);
                                 next_e = next_e >> sb->s_blocksize_bits;
                                 next_e += next_s;
                         }
                         break;
                 case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */
-                        if (vdsn >= vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum) {
-                                vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum = vdsn;
-                                vds[VDS_POS_IMP_USE_VOL_DESC].block = block;
+                        curr = &vds[VDS_POS_IMP_USE_VOL_DESC];
+                        if (vdsn >= curr->volDescSeqNum) {
+                                curr->volDescSeqNum = vdsn;
+                                curr->block = block;
                         }
                         break;
                 case TAG_IDENT_PD: /* ISO 13346 3/10.5 */
-                        if (!vds[VDS_POS_PARTITION_DESC].block)
-                                vds[VDS_POS_PARTITION_DESC].block = block;
+                        curr = &vds[VDS_POS_PARTITION_DESC];
+                        if (!curr->block)
+                                curr->block = block;
                         break;
                 case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */
-                        if (vdsn >= vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum) {
-                                vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum = vdsn;
-                                vds[VDS_POS_LOGICAL_VOL_DESC].block = block;
+                        curr = &vds[VDS_POS_LOGICAL_VOL_DESC];
+                        if (vdsn >= curr->volDescSeqNum) {
+                                curr->volDescSeqNum = vdsn;
+                                curr->block = block;
                         }
                         break;
                 case TAG_IDENT_USD: /* ISO 13346 3/10.8 */
-                        if (vdsn >= vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum) {
-                                vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum = vdsn;
-                                vds[VDS_POS_UNALLOC_SPACE_DESC].block = block;
+                        curr = &vds[VDS_POS_UNALLOC_SPACE_DESC];
+                        if (vdsn >= curr->volDescSeqNum) {
+                                curr->volDescSeqNum = vdsn;
+                                curr->block = block;
                         }
                         break;
                 case TAG_IDENT_TD: /* ISO 13346 3/10.9 */
@@ -1169,32 +1426,38 @@ static int udf_process_sequence(struct super_block *sb, long block, long lastblo
                                 block = next_s;
                                 lastblock = next_e;
                                 next_s = next_e = 0;
-                        } else {
+                        } else
                                 done = 1;
-                        }
                         break;
                 }
                 brelse(bh);
         }
         for (i = 0; i < VDS_POS_LENGTH; i++) {
                 if (vds[i].block) {
-                        bh = udf_read_tagged(sb, vds[i].block, vds[i].block, &ident);
+                        bh = udf_read_tagged(sb, vds[i].block, vds[i].block,
+                                             &ident);
 
                         if (i == VDS_POS_PRIMARY_VOL_DESC) {
                                 udf_load_pvoldesc(sb, bh);
                         } else if (i == VDS_POS_LOGICAL_VOL_DESC) {
-                                udf_load_logicalvol(sb, bh, fileset);
+                                if (udf_load_logicalvol(sb, bh, fileset)) {
+                                        brelse(bh);
+                                        return 1;
+                                }
                         } else if (i == VDS_POS_PARTITION_DESC) {
                                 struct buffer_head *bh2 = NULL;
                                 if (udf_load_partdesc(sb, bh)) {
                                         brelse(bh);
                                         return 1;
                                 }
-                                for (j = vds[i].block + 1; j <  vds[VDS_POS_TERMINATING_DESC].block; j++) {
+                                for (j = vds[i].block + 1;
+                                     j <  vds[VDS_POS_TERMINATING_DESC].block;
+                                     j++) {
                                         bh2 = udf_read_tagged(sb, j, j, &ident);
                                         gd = (struct generic_desc *)bh2->b_data;
                                         if (ident == TAG_IDENT_PD)
-                                                if (udf_load_partdesc(sb, bh2)) {
+                                                if (udf_load_partdesc(sb,
+                                                                      bh2)) {
                                                         brelse(bh);
                                                         brelse(bh2);
                                                         return 1;
@@ -1222,14 +1485,17 @@ static int udf_check_valid(struct super_block *sb, int novrs, int silent)
         }
         /* Check that it is NSR02 compliant */
         /* Process any "CD-ROM Volume Descriptor Set" (ECMA 167 2/8.3.1) */
-        else if ((block = udf_vrs(sb, silent)) == -1) {
-                udf_debug("Failed to read byte 32768. Assuming open disc. "
-                          "Skipping validity check\n");
-                if (!UDF_SB_LASTBLOCK(sb))
-                        UDF_SB_LASTBLOCK(sb) = udf_get_last_block(sb);
-                return 0;
-        } else {
-                return !block;
+        else {
+                block = udf_vrs(sb, silent);
+                if (block == -1) {
+                        struct udf_sb_info *sbi = UDF_SB(sb);
+                        udf_debug("Failed to read byte 32768. Assuming open "
+                                  "disc. Skipping validity check\n");
+                        if (!sbi->s_last_block)
+                                sbi->s_last_block = udf_get_last_block(sb);
+                        return 0;
+                } else
+                        return !block;
         }
 }
 
@@ -1240,100 +1506,121 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
         struct buffer_head *bh;
         long main_s, main_e, reserve_s, reserve_e;
         int i, j;
+        struct udf_sb_info *sbi;
 
         if (!sb)
                 return 1;
+        sbi = UDF_SB(sb);
 
-        for (i = 0; i < ARRAY_SIZE(UDF_SB_ANCHOR(sb)); i++) {
-                if (UDF_SB_ANCHOR(sb)[i] &&
-                    (bh = udf_read_tagged(sb, UDF_SB_ANCHOR(sb)[i],
-                                          UDF_SB_ANCHOR(sb)[i], &ident))) {
-                        anchor = (struct anchorVolDescPtr *)bh->b_data;
+        for (i = 0; i < ARRAY_SIZE(sbi->s_anchor); i++) {
+                if (!sbi->s_anchor[i])
+                        continue;
+                bh = udf_read_tagged(sb, sbi->s_anchor[i], sbi->s_anchor[i],
+                                     &ident);
+                if (!bh)
+                        continue;
 
-                        /* Locate the main sequence */
-                        main_s = le32_to_cpu(anchor->mainVolDescSeqExt.extLocation);
-                        main_e = le32_to_cpu(anchor->mainVolDescSeqExt.extLength );
-                        main_e = main_e >> sb->s_blocksize_bits;
-                        main_e += main_s;
+                anchor = (struct anchorVolDescPtr *)bh->b_data;
 
-                        /* Locate the reserve sequence */
-                        reserve_s = le32_to_cpu(anchor->reserveVolDescSeqExt.extLocation);
-                        reserve_e = le32_to_cpu(anchor->reserveVolDescSeqExt.extLength);
-                        reserve_e = reserve_e >> sb->s_blocksize_bits;
-                        reserve_e += reserve_s;
+                /* Locate the main sequence */
+                main_s = le32_to_cpu(anchor->mainVolDescSeqExt.extLocation);
+                main_e = le32_to_cpu(anchor->mainVolDescSeqExt.extLength);
+                main_e = main_e >> sb->s_blocksize_bits;
+                main_e += main_s;
 
-                        brelse(bh);
+                /* Locate the reserve sequence */
+                reserve_s = le32_to_cpu(
+                                anchor->reserveVolDescSeqExt.extLocation);
+                reserve_e = le32_to_cpu(
+                                anchor->reserveVolDescSeqExt.extLength);
+                reserve_e = reserve_e >> sb->s_blocksize_bits;
+                reserve_e += reserve_s;
 
-                        /* Process the main & reserve sequences */
-                        /* responsible for finding the PartitionDesc(s) */
-                        if (!(udf_process_sequence(sb, main_s, main_e, fileset) &&
-                              udf_process_sequence(sb, reserve_s, reserve_e, fileset))) {
-                                break;
-                        }
-                }
+                brelse(bh);
+
+                /* Process the main & reserve sequences */
+                /* responsible for finding the PartitionDesc(s) */
+                if (!(udf_process_sequence(sb, main_s, main_e,
+                                           fileset) &&
+                      udf_process_sequence(sb, reserve_s, reserve_e,
+                                           fileset)))
+                        break;
         }
 
-        if (i == ARRAY_SIZE(UDF_SB_ANCHOR(sb))) {
+        if (i == ARRAY_SIZE(sbi->s_anchor)) {
                 udf_debug("No Anchor block found\n");
                 return 1;
-        } else
-                udf_debug("Using anchor in block %d\n", UDF_SB_ANCHOR(sb)[i]);
+        }
+        udf_debug("Using anchor in block %d\n", sbi->s_anchor[i]);
 
-        for (i = 0; i < UDF_SB_NUMPARTS(sb); i++) {
+        for (i = 0; i < sbi->s_partitions; i++) {
                 kernel_lb_addr uninitialized_var(ino);
-                switch (UDF_SB_PARTTYPE(sb, i)) {
+                struct udf_part_map *map = &sbi->s_partmaps[i];
+                switch (map->s_partition_type) {
                 case UDF_VIRTUAL_MAP15:
                 case UDF_VIRTUAL_MAP20:
-                        if (!UDF_SB_LASTBLOCK(sb)) {
-                                UDF_SB_LASTBLOCK(sb) = udf_get_last_block(sb);
+                        if (!sbi->s_last_block) {
+                                sbi->s_last_block = udf_get_last_block(sb);
                                 udf_find_anchor(sb);
                         }
 
-                        if (!UDF_SB_LASTBLOCK(sb)) {
+                        if (!sbi->s_last_block) {
                                 udf_debug("Unable to determine Lastblock (For "
                                           "Virtual Partition)\n");
                                 return 1;
                         }
 
-                        for (j = 0; j < UDF_SB_NUMPARTS(sb); j++) {
+                        for (j = 0; j < sbi->s_partitions; j++) {
+                                struct udf_part_map *map2 = &sbi->s_partmaps[j];
                                 if (j != i &&
-                                    UDF_SB_PARTVSN(sb, i) == UDF_SB_PARTVSN(sb, j) &&
-                                    UDF_SB_PARTNUM(sb, i) == UDF_SB_PARTNUM(sb, j)) {
+                                    map->s_volumeseqnum ==
+                                                map2->s_volumeseqnum &&
+                                    map->s_partition_num ==
+                                                map2->s_partition_num) {
                                         ino.partitionReferenceNum = j;
-                                        ino.logicalBlockNum = UDF_SB_LASTBLOCK(sb) - UDF_SB_PARTROOT(sb, j);
+                                        ino.logicalBlockNum =
+                                                sbi->s_last_block -
+                                                        map2->s_partition_root;
                                         break;
                                 }
                         }
 
-                        if (j == UDF_SB_NUMPARTS(sb))
+                        if (j == sbi->s_partitions)
                                 return 1;
 
-                        if (!(UDF_SB_VAT(sb) = udf_iget(sb, ino)))
+                        sbi->s_vat_inode = udf_iget(sb, ino);
+                        if (!sbi->s_vat_inode)
                                 return 1;
 
-                        if (UDF_SB_PARTTYPE(sb, i) == UDF_VIRTUAL_MAP15) {
-                                UDF_SB_TYPEVIRT(sb, i).s_start_offset =
-                                        udf_ext0_offset(UDF_SB_VAT(sb));
-                                UDF_SB_TYPEVIRT(sb, i).s_num_entries =
-                                        (UDF_SB_VAT(sb)->i_size - 36) >> 2;
-                        } else if (UDF_SB_PARTTYPE(sb, i) == UDF_VIRTUAL_MAP20) {
-                                struct buffer_head *bh = NULL;
+                        if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
+                                map->s_type_specific.s_virtual.s_start_offset =
+                                        udf_ext0_offset(sbi->s_vat_inode);
+                                map->s_type_specific.s_virtual.s_num_entries =
+                                        (sbi->s_vat_inode->i_size - 36) >> 2;
+                        } else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
                                 uint32_t pos;
+                                struct virtualAllocationTable20 *vat20;
 
-                                pos = udf_block_map(UDF_SB_VAT(sb), 0);
+                                pos = udf_block_map(sbi->s_vat_inode, 0);
                                 bh = sb_bread(sb, pos);
                                 if (!bh)
                                         return 1;
-                                UDF_SB_TYPEVIRT(sb, i).s_start_offset =
-                                        le16_to_cpu(((struct virtualAllocationTable20 *)bh->b_data +
-                                                     udf_ext0_offset(UDF_SB_VAT(sb)))->lengthHeader) +
-                                        udf_ext0_offset(UDF_SB_VAT(sb));
-                                UDF_SB_TYPEVIRT(sb, i).s_num_entries = (UDF_SB_VAT(sb)->i_size -
-                                                                        UDF_SB_TYPEVIRT(sb, i).s_start_offset) >> 2;
+                                vat20 = (struct virtualAllocationTable20 *)
+                                        bh->b_data +
+                                        udf_ext0_offset(sbi->s_vat_inode);
+                                map->s_type_specific.s_virtual.s_start_offset =
+                                        le16_to_cpu(vat20->lengthHeader) +
+                                        udf_ext0_offset(sbi->s_vat_inode);
+                                map->s_type_specific.s_virtual.s_num_entries =
+                                        (sbi->s_vat_inode->i_size -
+                                         map->s_type_specific.s_virtual.
+                                                        s_start_offset) >> 2;
                                 brelse(bh);
                         }
-                        UDF_SB_PARTROOT(sb, i) = udf_get_pblock(sb, 0, i, 0);
-                        UDF_SB_PARTLEN(sb, i) = UDF_SB_PARTLEN(sb, ino.partitionReferenceNum);
+                        map->s_partition_root = udf_get_pblock(sb, 0, i, 0);
+                        map->s_partition_len =
+                                sbi->s_partmaps[ino.partitionReferenceNum].
+                                                                s_partition_len;
                 }
         }
         return 0;
@@ -1341,62 +1628,86 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
 
 static void udf_open_lvid(struct super_block *sb)
 {
-        if (UDF_SB_LVIDBH(sb)) {
-                int i;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct buffer_head *bh = sbi->s_lvid_bh;
+        if (bh) {
                 kernel_timestamp cpu_time;
+                struct logicalVolIntegrityDesc *lvid =
+                                (struct logicalVolIntegrityDesc *)bh->b_data;
+                struct logicalVolIntegrityDescImpUse *lvidiu =
+                                                        udf_sb_lvidiu(sbi);
 
-                UDF_SB_LVIDIU(sb)->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
-                UDF_SB_LVIDIU(sb)->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+                lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+                lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
                 if (udf_time_to_stamp(&cpu_time, CURRENT_TIME))
-                        UDF_SB_LVID(sb)->recordingDateAndTime = cpu_to_lets(cpu_time);
-                UDF_SB_LVID(sb)->integrityType = LVID_INTEGRITY_TYPE_OPEN;
-
-                UDF_SB_LVID(sb)->descTag.descCRC = cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag),
-                                                                       le16_to_cpu(UDF_SB_LVID(sb)->descTag.descCRCLength), 0));
+                        lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
+                lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
 
-                UDF_SB_LVID(sb)->descTag.tagChecksum = 0;
-                for (i = 0; i < 16; i++)
-                        if (i != 4)
-                                UDF_SB_LVID(sb)->descTag.tagChecksum +=
-                                        ((uint8_t *) &(UDF_SB_LVID(sb)->descTag))[i];
+                lvid->descTag.descCRC = cpu_to_le16(
+                        udf_crc((char *)lvid + sizeof(tag),
+                                le16_to_cpu(lvid->descTag.descCRCLength),
+                                0));
 
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+                lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
+                mark_buffer_dirty(bh);
         }
 }
 
 static void udf_close_lvid(struct super_block *sb)
 {
         kernel_timestamp cpu_time;
-        int i;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct buffer_head *bh = sbi->s_lvid_bh;
+        struct logicalVolIntegrityDesc *lvid;
+
+        if (!bh)
+                return;
+
+        lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
 
-        if (UDF_SB_LVIDBH(sb) &&
-            UDF_SB_LVID(sb)->integrityType == LVID_INTEGRITY_TYPE_OPEN) {
-                UDF_SB_LVIDIU(sb)->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
-                UDF_SB_LVIDIU(sb)->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+        if (lvid->integrityType == LVID_INTEGRITY_TYPE_OPEN) {
+                struct logicalVolIntegrityDescImpUse *lvidiu =
+                                                        udf_sb_lvidiu(sbi);
+                lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+                lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
                 if (udf_time_to_stamp(&cpu_time, CURRENT_TIME))
-                        UDF_SB_LVID(sb)->recordingDateAndTime = cpu_to_lets(cpu_time);
-                if (UDF_MAX_WRITE_VERSION > le16_to_cpu(UDF_SB_LVIDIU(sb)->maxUDFWriteRev))
-                        UDF_SB_LVIDIU(sb)->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
-                if (UDF_SB_UDFREV(sb) > le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev))
-                        UDF_SB_LVIDIU(sb)->minUDFReadRev = cpu_to_le16(UDF_SB_UDFREV(sb));
-                if (UDF_SB_UDFREV(sb) > le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev))
-                        UDF_SB_LVIDIU(sb)->minUDFWriteRev = cpu_to_le16(UDF_SB_UDFREV(sb));
-                UDF_SB_LVID(sb)->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
-
-                UDF_SB_LVID(sb)->descTag.descCRC =
-                        cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag),
-                                            le16_to_cpu(UDF_SB_LVID(sb)->descTag.descCRCLength), 0));
-
-                UDF_SB_LVID(sb)->descTag.tagChecksum = 0;
-                for (i = 0; i < 16; i++)
-                        if (i != 4)
-                                UDF_SB_LVID(sb)->descTag.tagChecksum +=
-                                        ((uint8_t *)&(UDF_SB_LVID(sb)->descTag))[i];
-
-                mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+                        lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
+                if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
+                        lvidiu->maxUDFWriteRev =
+                                        cpu_to_le16(UDF_MAX_WRITE_VERSION);
+                if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
+                        lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev);
+                if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev))
+                        lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev);
+                lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
+
+                lvid->descTag.descCRC = cpu_to_le16(
+                        udf_crc((char *)lvid + sizeof(tag),
+                                le16_to_cpu(lvid->descTag.descCRCLength),
+                                0));
+
+                lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
+                mark_buffer_dirty(bh);
         }
 }
 
+static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
+{
+        int i;
+        int nr_groups = bitmap->s_nr_groups;
+        int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) *
+                                                nr_groups);
+
+        for (i = 0; i < nr_groups; i++)
+                if (bitmap->s_block_bitmap[i])
+                        brelse(bitmap->s_block_bitmap[i]);
+
+        if (size <= PAGE_SIZE)
+                kfree(bitmap);
+        else
+                vfree(bitmap);
+}
+
 /*
  * udf_read_super
  *
@@ -1426,16 +1737,15 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
         uopt.gid = -1;
         uopt.umask = 0;
 
-        sbi = kmalloc(sizeof(struct udf_sb_info), GFP_KERNEL);
+        sbi = kzalloc(sizeof(struct udf_sb_info), GFP_KERNEL);
         if (!sbi)
                 return -ENOMEM;
 
         sb->s_fs_info = sbi;
-        memset(UDF_SB(sb), 0x00, sizeof(struct udf_sb_info));
 
         mutex_init(&sbi->s_alloc_mutex);
 
-        if (!udf_parse_options((char *)options, &uopt))
+        if (!udf_parse_options((char *)options, &uopt, false))
                 goto error_out;
 
         if (uopt.flags & (1 << UDF_FLAG_UTF8) &&
@@ -1459,30 +1769,31 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
         fileset.logicalBlockNum = 0xFFFFFFFF;
         fileset.partitionReferenceNum = 0xFFFF;
 
-        UDF_SB(sb)->s_flags = uopt.flags;
-        UDF_SB(sb)->s_uid = uopt.uid;
-        UDF_SB(sb)->s_gid = uopt.gid;
-        UDF_SB(sb)->s_umask = uopt.umask;
-        UDF_SB(sb)->s_nls_map = uopt.nls_map;
+        sbi->s_flags = uopt.flags;
+        sbi->s_uid = uopt.uid;
+        sbi->s_gid = uopt.gid;
+        sbi->s_umask = uopt.umask;
+        sbi->s_nls_map = uopt.nls_map;
 
         /* Set the block size for all transfers */
         if (!udf_set_blocksize(sb, uopt.blocksize))
                 goto error_out;
 
         if (uopt.session == 0xFFFFFFFF)
-                UDF_SB_SESSION(sb) = udf_get_last_session(sb);
+                sbi->s_session = udf_get_last_session(sb);
         else
-                UDF_SB_SESSION(sb) = uopt.session;
+                sbi->s_session = uopt.session;
 
-        udf_debug("Multi-session=%d\n", UDF_SB_SESSION(sb));
+        udf_debug("Multi-session=%d\n", sbi->s_session);
 
-        UDF_SB_LASTBLOCK(sb) = uopt.lastblock;
-        UDF_SB_ANCHOR(sb)[0] = UDF_SB_ANCHOR(sb)[1] = 0;
-        UDF_SB_ANCHOR(sb)[2] = uopt.anchor;
-        UDF_SB_ANCHOR(sb)[3] = 256;
+        sbi->s_last_block = uopt.lastblock;
+        sbi->s_anchor[0] = sbi->s_anchor[1] = 0;
+        sbi->s_anchor[2] = uopt.anchor;
+        sbi->s_anchor[3] = 256;
 
-        if (udf_check_valid(sb, uopt.novrs, silent)) { /* read volume recognition sequences */
-                printk("UDF-fs: No VRS found\n");
+        if (udf_check_valid(sb, uopt.novrs, silent)) {
+                /* read volume recognition sequences */
+                printk(KERN_WARNING "UDF-fs: No VRS found\n");
                 goto error_out;
         }
 
@@ -1496,27 +1807,30 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
         sb->s_time_gran = 1000;
 
         if (udf_load_partition(sb, &fileset)) {
-                printk("UDF-fs: No partition found (1)\n");
+                printk(KERN_WARNING "UDF-fs: No partition found (1)\n");
                 goto error_out;
         }
 
-        udf_debug("Lastblock=%d\n", UDF_SB_LASTBLOCK(sb));
+        udf_debug("Lastblock=%d\n", sbi->s_last_block);
 
-        if (UDF_SB_LVIDBH(sb)) {
-                uint16_t minUDFReadRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev);
-                uint16_t minUDFWriteRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev);
-                /* uint16_t maxUDFWriteRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->maxUDFWriteRev); */
+        if (sbi->s_lvid_bh) {
+                struct logicalVolIntegrityDescImpUse *lvidiu =
+                                                        udf_sb_lvidiu(sbi);
+                uint16_t minUDFReadRev = le16_to_cpu(lvidiu->minUDFReadRev);
+                uint16_t minUDFWriteRev = le16_to_cpu(lvidiu->minUDFWriteRev);
+                /* uint16_t maxUDFWriteRev =
+                                le16_to_cpu(lvidiu->maxUDFWriteRev); */
 
                 if (minUDFReadRev > UDF_MAX_READ_VERSION) {
-                        printk("UDF-fs: minUDFReadRev=%x (max is %x)\n",
-                               le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev),
+                        printk(KERN_ERR "UDF-fs: minUDFReadRev=%x "
+                                        "(max is %x)\n",
+                               le16_to_cpu(lvidiu->minUDFReadRev),
                                UDF_MAX_READ_VERSION);
                         goto error_out;
-                } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION) {
+                } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION)
                         sb->s_flags |= MS_RDONLY;
-                }
 
-                UDF_SB_UDFREV(sb) = minUDFWriteRev;
+                sbi->s_udfrev = minUDFWriteRev;
 
                 if (minUDFReadRev >= UDF_VERS_USE_EXTENDED_FE)
                         UDF_SET_FLAG(sb, UDF_FLAG_USE_EXTENDED_FE);
@@ -1524,29 +1838,30 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
                         UDF_SET_FLAG(sb, UDF_FLAG_USE_STREAMS);
         }
 
-        if (!UDF_SB_NUMPARTS(sb)) {
-                printk("UDF-fs: No partition found (2)\n");
+        if (!sbi->s_partitions) {
+                printk(KERN_WARNING "UDF-fs: No partition found (2)\n");
                 goto error_out;
         }
 
-        if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_READ_ONLY) {
-                printk("UDF-fs: Partition marked readonly; forcing readonly mount\n");
+        if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
+                        UDF_PART_FLAG_READ_ONLY) {
+                printk(KERN_NOTICE "UDF-fs: Partition marked readonly; "
+                                   "forcing readonly mount\n");
                 sb->s_flags |= MS_RDONLY;
         }
 
         if (udf_find_fileset(sb, &fileset, &rootdir)) {
-                printk("UDF-fs: No fileset found\n");
+                printk(KERN_WARNING "UDF-fs: No fileset found\n");
                 goto error_out;
         }
 
         if (!silent) {
                 kernel_timestamp ts;
-                udf_time_to_stamp(&ts, UDF_SB_RECORDTIME(sb));
-                udf_info("UDF %s (%s) Mounting volume '%s', "
+                udf_time_to_stamp(&ts, sbi->s_record_time);
+                udf_info("UDF: Mounting volume '%s', "
                          "timestamp %04u/%02u/%02u %02u:%02u (%x)\n",
-                         UDFFS_VERSION, UDFFS_DATE,
-                         UDF_SB_VOLIDENT(sb), ts.year, ts.month, ts.day, ts.hour, ts.minute,
-                         ts.typeAndTimezone);
+                         sbi->s_volume_ident, ts.year, ts.month, ts.day,
+                         ts.hour, ts.minute, ts.typeAndTimezone);
         }
         if (!(sb->s_flags & MS_RDONLY))
                 udf_open_lvid(sb);
@@ -1556,7 +1871,8 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
         /* perhaps it's not extensible enough, but for now ... */
         inode = udf_iget(sb, rootdir);
         if (!inode) {
-                printk("UDF-fs: Error in udf_iget, block=%d, partition=%d\n",
+                printk(KERN_ERR "UDF-fs: Error in udf_iget, block=%d, "
+                                "partition=%d\n",
                        rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
                 goto error_out;
         }
@@ -1564,7 +1880,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
         /* Allocate a dentry for the root inode */
         sb->s_root = d_alloc_root(inode);
         if (!sb->s_root) {
-                printk("UDF-fs: Couldn't allocate root dentry\n");
+                printk(KERN_ERR "UDF-fs: Couldn't allocate root dentry\n");
                 iput(inode);
                 goto error_out;
         }
@@ -1572,30 +1888,32 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
         return 0;
 
 error_out:
-        if (UDF_SB_VAT(sb))
-                iput(UDF_SB_VAT(sb));
-        if (UDF_SB_NUMPARTS(sb)) {
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE)
-                        iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table);
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE)
-                        iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table);
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP)
-                        UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb), s_uspace);
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP)
-                        UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb), s_fspace);
-                if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == UDF_SPARABLE_MAP15) {
+        if (sbi->s_vat_inode)
+                iput(sbi->s_vat_inode);
+        if (sbi->s_partitions) {
+                struct udf_part_map *map = &sbi->s_partmaps[sbi->s_partition];
+                if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
+                        iput(map->s_uspace.s_table);
+                if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
+                        iput(map->s_fspace.s_table);
+                if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
+                        udf_sb_free_bitmap(map->s_uspace.s_bitmap);
+                if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
+                        udf_sb_free_bitmap(map->s_fspace.s_bitmap);
+                if (map->s_partition_type == UDF_SPARABLE_MAP15)
                         for (i = 0; i < 4; i++)
-                                brelse(UDF_SB_TYPESPAR(sb, UDF_SB_PARTITION(sb)).s_spar_map[i]);
-                }
+                                brelse(map->s_type_specific.s_sparing.
+                                                s_spar_map[i]);
         }
 #ifdef CONFIG_UDF_NLS
         if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
-                unload_nls(UDF_SB(sb)->s_nls_map);
+                unload_nls(sbi->s_nls_map);
 #endif
         if (!(sb->s_flags & MS_RDONLY))
                 udf_close_lvid(sb);
-        brelse(UDF_SB_LVIDBH(sb));
-        UDF_SB_FREE(sb);
+        brelse(sbi->s_lvid_bh);
+
+        kfree(sbi->s_partmaps);
         kfree(sbi);
         sb->s_fs_info = NULL;
 
@@ -1614,7 +1932,7 @@ void udf_error(struct super_block *sb, const char *function,
         va_start(args, fmt);
         vsnprintf(error_buf, sizeof(error_buf), fmt, args);
         va_end(args);
-        printk (KERN_CRIT "UDF-fs error (device %s): %s: %s\n",
+        printk(KERN_CRIT "UDF-fs error (device %s): %s: %s\n",
                 sb->s_id, function, error_buf);
 }
 
@@ -1646,31 +1964,34 @@ void udf_warning(struct super_block *sb, const char *function,
 static void udf_put_super(struct super_block *sb)
 {
         int i;
+        struct udf_sb_info *sbi;
 
-        if (UDF_SB_VAT(sb))
-                iput(UDF_SB_VAT(sb));
-        if (UDF_SB_NUMPARTS(sb)) {
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE)
-                        iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table);
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE)
-                        iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table);
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP)
-                        UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb), s_uspace);
-                if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP)
-                        UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb), s_fspace);
-                if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == UDF_SPARABLE_MAP15) {
+        sbi = UDF_SB(sb);
+        if (sbi->s_vat_inode)
+                iput(sbi->s_vat_inode);
+        if (sbi->s_partitions) {
+                struct udf_part_map *map = &sbi->s_partmaps[sbi->s_partition];
+                if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
+                        iput(map->s_uspace.s_table);
+                if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
+                        iput(map->s_fspace.s_table);
+                if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
+                        udf_sb_free_bitmap(map->s_uspace.s_bitmap);
+                if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
+                        udf_sb_free_bitmap(map->s_fspace.s_bitmap);
+                if (map->s_partition_type == UDF_SPARABLE_MAP15)
                         for (i = 0; i < 4; i++)
-                                brelse(UDF_SB_TYPESPAR(sb, UDF_SB_PARTITION(sb)).s_spar_map[i]);
-                }
+                                brelse(map->s_type_specific.s_sparing.
+                                                s_spar_map[i]);
         }
 #ifdef CONFIG_UDF_NLS
         if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
-                unload_nls(UDF_SB(sb)->s_nls_map);
+                unload_nls(sbi->s_nls_map);
 #endif
         if (!(sb->s_flags & MS_RDONLY))
                 udf_close_lvid(sb);
-        brelse(UDF_SB_LVIDBH(sb));
-        UDF_SB_FREE(sb);
+        brelse(sbi->s_lvid_bh);
+        kfree(sbi->s_partmaps);
         kfree(sb->s_fs_info);
         sb->s_fs_info = NULL;
 }
@@ -1691,15 +2012,22 @@ static void udf_put_super(struct super_block *sb)
 static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
         struct super_block *sb = dentry->d_sb;
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct logicalVolIntegrityDescImpUse *lvidiu;
+
+        if (sbi->s_lvid_bh != NULL)
+                lvidiu = udf_sb_lvidiu(sbi);
+        else
+                lvidiu = NULL;
 
         buf->f_type = UDF_SUPER_MAGIC;
         buf->f_bsize = sb->s_blocksize;
-        buf->f_blocks = UDF_SB_PARTLEN(sb, UDF_SB_PARTITION(sb));
+        buf->f_blocks = sbi->s_partmaps[sbi->s_partition].s_partition_len;
         buf->f_bfree = udf_count_free(sb);
         buf->f_bavail = buf->f_bfree;
-        buf->f_files = (UDF_SB_LVIDBH(sb) ?
-                        (le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) +
-                         le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs)) : 0) + buf->f_bfree;
+        buf->f_files = (lvidiu != NULL ? (le32_to_cpu(lvidiu->numFiles) +
+                                          le32_to_cpu(lvidiu->numDirs)) : 0)
+                        + buf->f_bfree;
         buf->f_ffree = buf->f_bfree;
         /* __kernel_fsid_t f_fsid */
         buf->f_namelen = UDF_NAME_LEN - 2;
@@ -1711,7 +2039,8 @@ static unsigned char udf_bitmap_lookup[16] = {
         0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4
 };
 
-static unsigned int udf_count_free_bitmap(struct super_block *sb, struct udf_bitmap *bitmap)
+static unsigned int udf_count_free_bitmap(struct super_block *sb,
+                                          struct udf_bitmap *bitmap)
 {
         struct buffer_head *bh = NULL;
         unsigned int accum = 0;
@@ -1727,7 +2056,7 @@ static unsigned int udf_count_free_bitmap(struct super_block *sb, struct udf_bit
         lock_kernel();
 
         loc.logicalBlockNum = bitmap->s_extPosition;
-        loc.partitionReferenceNum = UDF_SB_PARTITION(sb);
+        loc.partitionReferenceNum = UDF_SB(sb)->s_partition;
         bh = udf_read_ptagged(sb, loc, 0, &ident);
 
         if (!bh) {
@@ -1772,7 +2101,8 @@ out:
         return accum;
 }
 
-static unsigned int udf_count_free_table(struct super_block *sb, struct inode *table)
+static unsigned int udf_count_free_table(struct super_block *sb,
+                                         struct inode *table)
 {
         unsigned int accum = 0;
         uint32_t elen;
@@ -1782,13 +2112,13 @@ static unsigned int udf_count_free_table(struct super_block *sb, struct inode *t
 
         lock_kernel();
 
-        epos.block = UDF_I_LOCATION(table);
+        epos.block = UDF_I(table)->i_location;
         epos.offset = sizeof(struct unallocSpaceEntry);
         epos.bh = NULL;
 
-        while ((etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
+        while ((etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1)
                 accum += (elen >> table->i_sb->s_blocksize_bits);
-        }
+
         brelse(epos.bh);
 
         unlock_kernel();
@@ -1799,10 +2129,17 @@ static unsigned int udf_count_free_table(struct super_block *sb, struct inode *t
 static unsigned int udf_count_free(struct super_block *sb)
 {
         unsigned int accum = 0;
-
-        if (UDF_SB_LVIDBH(sb)) {
-                if (le32_to_cpu(UDF_SB_LVID(sb)->numOfPartitions) > UDF_SB_PARTITION(sb)) {
-                        accum = le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)]);
+        struct udf_sb_info *sbi;
+        struct udf_part_map *map;
+
+        sbi = UDF_SB(sb);
+        if (sbi->s_lvid_bh) {
+                struct logicalVolIntegrityDesc *lvid =
+                        (struct logicalVolIntegrityDesc *)
+                        sbi->s_lvid_bh->b_data;
+                if (le32_to_cpu(lvid->numOfPartitions) > sbi->s_partition) {
+                        accum = le32_to_cpu(
+                                        lvid->freeSpaceTable[sbi->s_partition]);
                         if (accum == 0xFFFFFFFF)
                                 accum = 0;
                 }
@@ -1811,24 +2148,25 @@ static unsigned int udf_count_free(struct super_block *sb)
         if (accum)
                 return accum;
 
-        if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP) {
+        map = &sbi->s_partmaps[sbi->s_partition];
+        if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
                 accum += udf_count_free_bitmap(sb,
-                                               UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_bitmap);
+                                               map->s_uspace.s_bitmap);
         }
-        if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP) {
+        if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
                 accum += udf_count_free_bitmap(sb,
-                                               UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_bitmap);
+                                               map->s_fspace.s_bitmap);
         }
         if (accum)
                 return accum;
 
-        if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE) {
+        if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
                 accum += udf_count_free_table(sb,
-                                              UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table);
+                                              map->s_uspace.s_table);
         }
-        if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE) {
+        if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
                 accum += udf_count_free_table(sb,
-                                              UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table);
+                                              map->s_fspace.s_table);
         }
 
         return accum;
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index e6f933dd6a7b..6ec99221e50c 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -33,7 +33,8 @@
 #include <linux/buffer_head.h>
 #include "udf_i.h"
 
-static void udf_pc_to_char(struct super_block *sb, char *from, int fromlen, char *to)
+static void udf_pc_to_char(struct super_block *sb, char *from, int fromlen,
+                           char *to)
 {
         struct pathComponent *pc;
         int elen = 0;
@@ -78,10 +79,12 @@ static int udf_symlink_filler(struct file *file, struct page *page)
         char *symlink;
         int err = -EIO;
         char *p = kmap(page);
+        struct udf_inode_info *iinfo;
 
         lock_kernel();
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
-                symlink = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode);
+        iinfo = UDF_I(inode);
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+                symlink = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
         } else {
                 bh = sb_bread(inode->i_sb, udf_block_map(inode, 0));
 
diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
index 7fc3912885a5..fe61be17cdab 100644
--- a/fs/udf/truncate.c
+++ b/fs/udf/truncate.c
@@ -74,17 +74,18 @@ void udf_truncate_tail_extent(struct inode *inode)
         uint64_t lbcount = 0;
         int8_t etype = -1, netype;
         int adsize;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB ||
-            inode->i_size == UDF_I_LENEXTENTS(inode))
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ||
+            inode->i_size == iinfo->i_lenExtents)
                 return;
         /* Are we going to delete the file anyway? */
         if (inode->i_nlink == 0)
                 return;
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 adsize = sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 adsize = sizeof(long_ad);
         else
                 BUG();
@@ -117,7 +118,7 @@ void udf_truncate_tail_extent(struct inode *inode)
         }
         /* This inode entry is in-memory only and thus we don't have to mark
          * the inode dirty */
-        UDF_I_LENEXTENTS(inode) = inode->i_size;
+        iinfo->i_lenExtents = inode->i_size;
         brelse(epos.bh);
 }
 
@@ -129,19 +130,20 @@ void udf_discard_prealloc(struct inode *inode)
         uint64_t lbcount = 0;
         int8_t etype = -1, netype;
         int adsize;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB ||
-            inode->i_size == UDF_I_LENEXTENTS(inode))
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ||
+            inode->i_size == iinfo->i_lenExtents)
                 return;
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 adsize = sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 adsize = sizeof(long_ad);
         else
                 adsize = 0;
 
-        epos.block = UDF_I_LOCATION(inode);
+        epos.block = iinfo->i_location;
 
         /* Find the last extent in the file */
         while ((netype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) {
@@ -153,8 +155,9 @@ void udf_discard_prealloc(struct inode *inode)
                 lbcount -= elen;
                 extent_trunc(inode, &epos, eloc, etype, elen, 0);
                 if (!epos.bh) {
-                        UDF_I_LENALLOC(inode) =
-                                epos.offset - udf_file_entry_alloc_offset(inode);
+                        iinfo->i_lenAlloc =
+                                epos.offset -
+                                udf_file_entry_alloc_offset(inode);
                         mark_inode_dirty(inode);
                 } else {
                         struct allocExtDesc *aed =
@@ -163,7 +166,7 @@ void udf_discard_prealloc(struct inode *inode)
                                 cpu_to_le32(epos.offset -
                                             sizeof(struct allocExtDesc));
                         if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
-                            UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+                            UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
                                 udf_update_tag(epos.bh->b_data, epos.offset);
                         else
                                 udf_update_tag(epos.bh->b_data,
@@ -173,7 +176,7 @@ void udf_discard_prealloc(struct inode *inode)
         }
         /* This inode entry is in-memory only and thus we don't have to mark
          * the inode dirty */
-        UDF_I_LENEXTENTS(inode) = lbcount;
+        iinfo->i_lenExtents = lbcount;
         brelse(epos.bh);
 }
 
@@ -184,13 +187,15 @@ void udf_truncate_extents(struct inode *inode)
         uint32_t elen, nelen = 0, indirect_ext_len = 0, lenalloc;
         int8_t etype;
         struct super_block *sb = inode->i_sb;
+        struct udf_sb_info *sbi = UDF_SB(sb);
         sector_t first_block = inode->i_size >> sb->s_blocksize_bits, offset;
         loff_t byte_offset;
         int adsize;
+        struct udf_inode_info *iinfo = UDF_I(inode);
 
-        if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+        if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
                 adsize = sizeof(short_ad);
-        else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+        else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
                 adsize = sizeof(long_ad);
         else
                 BUG();
@@ -212,7 +217,8 @@ void udf_truncate_extents(struct inode *inode)
                 else
                         lenalloc -= sizeof(struct allocExtDesc);
 
-                while ((etype = udf_current_aext(inode, &epos, &eloc, &elen, 0)) != -1) {
+                while ((etype = udf_current_aext(inode, &epos, &eloc,
+                                                 &elen, 0)) != -1) {
                         if (etype == (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
                                 udf_write_aext(inode, &epos, neloc, nelen, 0);
                                 if (indirect_ext_len) {
@@ -224,35 +230,43 @@ void udf_truncate_extents(struct inode *inode)
                                                         0, indirect_ext_len);
                                 } else {
                                         if (!epos.bh) {
-                                                UDF_I_LENALLOC(inode) = lenalloc;
+                                                iinfo->i_lenAlloc =
+                                                                lenalloc;
                                                 mark_inode_dirty(inode);
                                         } else {
                                                 struct allocExtDesc *aed =
-                                                        (struct allocExtDesc *)(epos.bh->b_data);
+                                                        (struct allocExtDesc *)
+                                                        (epos.bh->b_data);
+                                                int len =
+                                                    sizeof(struct allocExtDesc);
+
                                                 aed->lengthAllocDescs =
                                                     cpu_to_le32(lenalloc);
-                                                if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) ||
-                                                    UDF_SB_UDFREV(sb) >= 0x0201)
-                                                        udf_update_tag(epos.bh->b_data,
-                                                                       lenalloc +
-                                                                       sizeof(struct allocExtDesc));
-                                                else
-                                                        udf_update_tag(epos.bh->b_data,
-                                                                       sizeof(struct allocExtDesc));
-                                                mark_buffer_dirty_inode(epos.bh, inode);
+                                                if (!UDF_QUERY_FLAG(sb,
+                                                        UDF_FLAG_STRICT) ||
+                                                    sbi->s_udfrev >= 0x0201)
+                                                        len += lenalloc;
+
+                                                udf_update_tag(epos.bh->b_data,
+                                                                len);
+                                                mark_buffer_dirty_inode(
+                                                                epos.bh, inode);
                                         }
                                 }
                                 brelse(epos.bh);
                                 epos.offset = sizeof(struct allocExtDesc);
                                 epos.block = eloc;
-                                epos.bh = udf_tread(sb, udf_get_lb_pblock(sb, eloc, 0));
+                                epos.bh = udf_tread(sb,
+                                                udf_get_lb_pblock(sb, eloc, 0));
                                 if (elen)
-                                        indirect_ext_len = (elen + sb->s_blocksize -1) >>
+                                        indirect_ext_len =
+                                                (elen + sb->s_blocksize - 1) >>
                                                 sb->s_blocksize_bits;
                                 else
                                         indirect_ext_len = 1;
                         } else {
-                                extent_trunc(inode, &epos, eloc, etype, elen, 0);
+                                extent_trunc(inode, &epos, eloc, etype,
+                                             elen, 0);
                                 epos.offset += adsize;
                         }
                 }
@@ -264,19 +278,20 @@ void udf_truncate_extents(struct inode *inode)
                                         indirect_ext_len);
                 } else {
                         if (!epos.bh) {
-                                UDF_I_LENALLOC(inode) = lenalloc;
+                                iinfo->i_lenAlloc = lenalloc;
                                 mark_inode_dirty(inode);
                         } else {
                                 struct allocExtDesc *aed =
                                     (struct allocExtDesc *)(epos.bh->b_data);
                                 aed->lengthAllocDescs = cpu_to_le32(lenalloc);
                                 if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) ||
-                                    UDF_SB_UDFREV(sb) >= 0x0201)
+                                    sbi->s_udfrev >= 0x0201)
                                         udf_update_tag(epos.bh->b_data,
-                                                       lenalloc + sizeof(struct allocExtDesc));
+                                                lenalloc +
+                                                sizeof(struct allocExtDesc));
                                 else
                                         udf_update_tag(epos.bh->b_data,
-                                                       sizeof(struct allocExtDesc));
+                                                sizeof(struct allocExtDesc));
                                 mark_buffer_dirty_inode(epos.bh, inode);
                         }
                 }
@@ -290,13 +305,16 @@ void udf_truncate_extents(struct inode *inode)
                          *  extending the file by 'offset' blocks.
                          */
                         if ((!epos.bh &&
-                             epos.offset == udf_file_entry_alloc_offset(inode)) ||
-                            (epos.bh && epos.offset == sizeof(struct allocExtDesc))) {
+                             epos.offset ==
+                                        udf_file_entry_alloc_offset(inode)) ||
+                            (epos.bh && epos.offset ==
+                                                sizeof(struct allocExtDesc))) {
                                 /* File has no extents at all or has empty last
                                  * indirect extent! Create a fake extent... */
                                 extent.extLocation.logicalBlockNum = 0;
                                 extent.extLocation.partitionReferenceNum = 0;
-                                extent.extLength = EXT_NOT_RECORDED_NOT_ALLOCATED;
+                                extent.extLength =
+                                        EXT_NOT_RECORDED_NOT_ALLOCATED;
                         } else {
                                 epos.offset -= adsize;
                                 etype = udf_next_aext(inode, &epos,
@@ -305,10 +323,12 @@ void udf_truncate_extents(struct inode *inode)
                                 extent.extLength |= etype << 30;
                         }
                         udf_extend_file(inode, &epos, &extent,
-                                        offset + ((inode->i_size & (sb->s_blocksize - 1)) != 0));
+                                        offset +
+                                        ((inode->i_size &
+                                                (sb->s_blocksize - 1)) != 0));
                 }
         }
-        UDF_I_LENEXTENTS(inode) = inode->i_size;
+        iinfo->i_lenExtents = inode->i_size;
 
         brelse(epos.bh);
 }
diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
index d7dbe6f3ba0c..ccc52f16bf7d 100644
--- a/fs/udf/udf_i.h
+++ b/fs/udf/udf_i.h
@@ -7,20 +7,4 @@ static inline struct udf_inode_info *UDF_I(struct inode *inode)
         return list_entry(inode, struct udf_inode_info, vfs_inode);
 }
 
-#define UDF_I_LOCATION(X)       ( UDF_I(X)->i_location )
-#define UDF_I_LENEATTR(X)       ( UDF_I(X)->i_lenEAttr )
-#define UDF_I_LENALLOC(X)       ( UDF_I(X)->i_lenAlloc )
-#define UDF_I_LENEXTENTS(X)     ( UDF_I(X)->i_lenExtents )
-#define UDF_I_UNIQUE(X)         ( UDF_I(X)->i_unique )
-#define UDF_I_ALLOCTYPE(X)      ( UDF_I(X)->i_alloc_type )
-#define UDF_I_EFE(X)            ( UDF_I(X)->i_efe )
-#define UDF_I_USE(X)            ( UDF_I(X)->i_use )
-#define UDF_I_STRAT4096(X)      ( UDF_I(X)->i_strat4096 )
-#define UDF_I_NEXT_ALLOC_BLOCK(X)       ( UDF_I(X)->i_next_alloc_block )
-#define UDF_I_NEXT_ALLOC_GOAL(X)        ( UDF_I(X)->i_next_alloc_goal )
-#define UDF_I_CRTIME(X)         ( UDF_I(X)->i_crtime )
-#define UDF_I_SAD(X)            ( UDF_I(X)->i_ext.i_sad )
-#define UDF_I_LAD(X)            ( UDF_I(X)->i_ext.i_lad )
-#define UDF_I_DATA(X)           ( UDF_I(X)->i_ext.i_data )
-
 #endif /* !defined(_LINUX_UDF_I_H) */
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 3c2982017c6d..737d1c604eea 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -26,6 +26,8 @@
 #define UDF_FLAG_GID_IGNORE     14
 #define UDF_FLAG_UID_SET        15
 #define UDF_FLAG_GID_SET        16
+#define UDF_FLAG_SESSION_SET    17
+#define UDF_FLAG_LASTBLOCK_SET  18
 
 #define UDF_PART_FLAG_UNALLOC_BITMAP    0x0001
 #define UDF_PART_FLAG_UNALLOC_TABLE     0x0002
@@ -41,96 +43,12 @@ static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
         return sb->s_fs_info;
 }
 
-#define UDF_SB_FREE(X)\
-{\
-        if (UDF_SB(X)) {\
-                kfree(UDF_SB_PARTMAPS(X));\
-                UDF_SB_PARTMAPS(X) = NULL;\
-        }\
-}
-
-#define UDF_SB_ALLOC_PARTMAPS(X,Y)\
-{\
-        UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\
-        if (UDF_SB_PARTMAPS(X) != NULL) {\
-                UDF_SB_NUMPARTS(X) = Y;\
-                memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\
-        } else {\
-                UDF_SB_NUMPARTS(X) = 0;\
-                udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\
-        }\
-}
-
-#define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
-{\
-        int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\
-                ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
-        int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
-        if (size <= PAGE_SIZE)\
-                UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\
-        else\
-                UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = vmalloc(size);\
-        if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL) {\
-                memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00, size);\
-                UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\
-                        (struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\
-                UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
-        } else {\
-                udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
-        }\
-}
+struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi);
 
-#define UDF_SB_FREE_BITMAP(X,Y,Z)\
-{\
-        int i;\
-        int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\
-        int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
-        for (i = 0; i < nr_groups; i++) {\
-                if (UDF_SB_BITMAP(X,Y,Z,i))\
-                        brelse(UDF_SB_BITMAP(X,Y,Z,i));\
-        }\
-        if (size <= PAGE_SIZE)\
-                kfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
-        else\
-                vfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
-}
+int udf_compute_nr_groups(struct super_block *sb, u32 partition);
 
 #define UDF_QUERY_FLAG(X,Y)                     ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
 #define UDF_SET_FLAG(X,Y)                       ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
 #define UDF_CLEAR_FLAG(X,Y)                     ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
 
-#define UDF_UPDATE_UDFREV(X,Y)                  ( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) )
-
-#define UDF_SB_PARTMAPS(X)                      ( UDF_SB(X)->s_partmaps )
-#define UDF_SB_PARTTYPE(X,Y)                    ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_type )
-#define UDF_SB_PARTROOT(X,Y)                    ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_root )
-#define UDF_SB_PARTLEN(X,Y)                     ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_len )
-#define UDF_SB_PARTVSN(X,Y)                     ( UDF_SB_PARTMAPS(X)[(Y)].s_volumeseqnum )
-#define UDF_SB_PARTNUM(X,Y)                     ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_num )
-#define UDF_SB_TYPESPAR(X,Y)                    ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_sparing )
-#define UDF_SB_TYPEVIRT(X,Y)                    ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_virtual )
-#define UDF_SB_PARTFUNC(X,Y)                    ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_func )
-#define UDF_SB_PARTFLAGS(X,Y)                   ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags )
-#define UDF_SB_BITMAP(X,Y,Z,I)                  ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] )
-#define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z)          ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups )
-
-#define UDF_SB_VOLIDENT(X)                      ( UDF_SB(X)->s_volident )
-#define UDF_SB_NUMPARTS(X)                      ( UDF_SB(X)->s_partitions )
-#define UDF_SB_PARTITION(X)                     ( UDF_SB(X)->s_partition )
-#define UDF_SB_SESSION(X)                       ( UDF_SB(X)->s_session )
-#define UDF_SB_ANCHOR(X)                        ( UDF_SB(X)->s_anchor )
-#define UDF_SB_LASTBLOCK(X)                     ( UDF_SB(X)->s_lastblock )
-#define UDF_SB_LVIDBH(X)                        ( UDF_SB(X)->s_lvidbh )
-#define UDF_SB_LVID(X)                          ( (struct logicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data )
-#define UDF_SB_LVIDIU(X)                        ( (struct logicalVolIntegrityDescImpUse *)&(UDF_SB_LVID(X)->impUse[le32_to_cpu(UDF_SB_LVID(X)->numOfPartitions) * 2 * sizeof(uint32_t)/sizeof(uint8_t)]) )
-
-#define UDF_SB_UMASK(X)                         ( UDF_SB(X)->s_umask )
-#define UDF_SB_GID(X)                           ( UDF_SB(X)->s_gid )
-#define UDF_SB_UID(X)                           ( UDF_SB(X)->s_uid )
-#define UDF_SB_RECORDTIME(X)                    ( UDF_SB(X)->s_recordtime )
-#define UDF_SB_SERIALNUM(X)                     ( UDF_SB(X)->s_serialnum )
-#define UDF_SB_UDFREV(X)                        ( UDF_SB(X)->s_udfrev )
-#define UDF_SB_FLAGS(X)                         ( UDF_SB(X)->s_flags )
-#define UDF_SB_VAT(X)                           ( UDF_SB(X)->s_vat )
-
 #endif /* __LINUX_UDF_SB_H */
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index c8016cc9e7e6..681dc2b66cdb 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -24,18 +24,21 @@
 #define UDF_PATH_LEN            1023
 
 #define udf_file_entry_alloc_offset(inode)\
-        (UDF_I_USE(inode) ?\
+        (UDF_I(inode)->i_use ?\
                 sizeof(struct unallocSpaceEntry) :\
-                ((UDF_I_EFE(inode) ?\
+                ((UDF_I(inode)->i_efe ?\
                         sizeof(struct extendedFileEntry) :\
-                        sizeof(struct fileEntry)) + UDF_I_LENEATTR(inode)))
+                        sizeof(struct fileEntry)) + UDF_I(inode)->i_lenEAttr))
 
 #define udf_ext0_offset(inode)\
-        (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB ?\
+        (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ?\
                 udf_file_entry_alloc_offset(inode) : 0)
 
 #define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
 
+/* computes tag checksum */
+u8 udf_tag_checksum(const tag *t);
+
 struct dentry;
 struct inode;
 struct task_struct;
@@ -185,8 +188,8 @@ extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
                                                 sector_t *);
 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
                                                int *offset);
-extern long_ad *udf_get_filelongad(uint8_t *, int, int *, int);
-extern short_ad *udf_get_fileshortad(uint8_t *, int, int *, int);
+extern long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
+extern short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
 
 /* crc.c */
 extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index adcb87c2da7e..ce595732ba6f 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -18,8 +18,10 @@
    Boston, MA 02111-1307, USA.  */
 
 /*
- * dgb 10/02/98: ripped this from glibc source to help convert timestamps to unix time
- *     10/04/98: added new table-based lookup after seeing how ugly the gnu code is
+ * dgb 10/02/98: ripped this from glibc source to help convert timestamps
+ *               to unix time
+ *     10/04/98: added new table-based lookup after seeing how ugly
+ *               the gnu code is
  * blf 09/27/99: ripped out all the old code and inserted new table from
  *               John Brockmeyer (without leap second corrections)
  *               rewrote udf_stamp_to_time and fixed timezone accounting in
@@ -55,27 +57,27 @@ static const unsigned short int __mon_yday[2][13] = {
 
 #define MAX_YEAR_SECONDS        69
 #define SPD                     0x15180 /*3600*24 */
-#define SPY(y,l,s)              (SPD * (365*y+l)+s)
-
-static time_t year_seconds[MAX_YEAR_SECONDS]= {
-/*1970*/ SPY( 0, 0,0), SPY( 1, 0,0), SPY( 2, 0,0), SPY( 3, 1,0),
-/*1974*/ SPY( 4, 1,0), SPY( 5, 1,0), SPY( 6, 1,0), SPY( 7, 2,0),
-/*1978*/ SPY( 8, 2,0), SPY( 9, 2,0), SPY(10, 2,0), SPY(11, 3,0),
-/*1982*/ SPY(12, 3,0), SPY(13, 3,0), SPY(14, 3,0), SPY(15, 4,0),
-/*1986*/ SPY(16, 4,0), SPY(17, 4,0), SPY(18, 4,0), SPY(19, 5,0),
-/*1990*/ SPY(20, 5,0), SPY(21, 5,0), SPY(22, 5,0), SPY(23, 6,0),
-/*1994*/ SPY(24, 6,0), SPY(25, 6,0), SPY(26, 6,0), SPY(27, 7,0),
-/*1998*/ SPY(28, 7,0), SPY(29, 7,0), SPY(30, 7,0), SPY(31, 8,0),
-/*2002*/ SPY(32, 8,0), SPY(33, 8,0), SPY(34, 8,0), SPY(35, 9,0),
-/*2006*/ SPY(36, 9,0), SPY(37, 9,0), SPY(38, 9,0), SPY(39,10,0),
-/*2010*/ SPY(40,10,0), SPY(41,10,0), SPY(42,10,0), SPY(43,11,0),
-/*2014*/ SPY(44,11,0), SPY(45,11,0), SPY(46,11,0), SPY(47,12,0),
-/*2018*/ SPY(48,12,0), SPY(49,12,0), SPY(50,12,0), SPY(51,13,0),
-/*2022*/ SPY(52,13,0), SPY(53,13,0), SPY(54,13,0), SPY(55,14,0),
-/*2026*/ SPY(56,14,0), SPY(57,14,0), SPY(58,14,0), SPY(59,15,0),
-/*2030*/ SPY(60,15,0), SPY(61,15,0), SPY(62,15,0), SPY(63,16,0),
-/*2034*/ SPY(64,16,0), SPY(65,16,0), SPY(66,16,0), SPY(67,17,0),
-/*2038*/ SPY(68,17,0)
+#define SPY(y, l, s)            (SPD * (365 * y + l) + s)
+
+static time_t year_seconds[MAX_YEAR_SECONDS] = {
+/*1970*/ SPY(0,   0, 0), SPY(1,   0, 0), SPY(2,   0, 0), SPY(3,   1, 0),
+/*1974*/ SPY(4,   1, 0), SPY(5,   1, 0), SPY(6,   1, 0), SPY(7,   2, 0),
+/*1978*/ SPY(8,   2, 0), SPY(9,   2, 0), SPY(10,  2, 0), SPY(11,  3, 0),
+/*1982*/ SPY(12,  3, 0), SPY(13,  3, 0), SPY(14,  3, 0), SPY(15,  4, 0),
+/*1986*/ SPY(16,  4, 0), SPY(17,  4, 0), SPY(18,  4, 0), SPY(19,  5, 0),
+/*1990*/ SPY(20,  5, 0), SPY(21,  5, 0), SPY(22,  5, 0), SPY(23,  6, 0),
+/*1994*/ SPY(24,  6, 0), SPY(25,  6, 0), SPY(26,  6, 0), SPY(27,  7, 0),
+/*1998*/ SPY(28,  7, 0), SPY(29,  7, 0), SPY(30,  7, 0), SPY(31,  8, 0),
+/*2002*/ SPY(32,  8, 0), SPY(33,  8, 0), SPY(34,  8, 0), SPY(35,  9, 0),
+/*2006*/ SPY(36,  9, 0), SPY(37,  9, 0), SPY(38,  9, 0), SPY(39, 10, 0),
+/*2010*/ SPY(40, 10, 0), SPY(41, 10, 0), SPY(42, 10, 0), SPY(43, 11, 0),
+/*2014*/ SPY(44, 11, 0), SPY(45, 11, 0), SPY(46, 11, 0), SPY(47, 12, 0),
+/*2018*/ SPY(48, 12, 0), SPY(49, 12, 0), SPY(50, 12, 0), SPY(51, 13, 0),
+/*2022*/ SPY(52, 13, 0), SPY(53, 13, 0), SPY(54, 13, 0), SPY(55, 14, 0),
+/*2026*/ SPY(56, 14, 0), SPY(57, 14, 0), SPY(58, 14, 0), SPY(59, 15, 0),
+/*2030*/ SPY(60, 15, 0), SPY(61, 15, 0), SPY(62, 15, 0), SPY(63, 16, 0),
+/*2034*/ SPY(64, 16, 0), SPY(65, 16, 0), SPY(66, 16, 0), SPY(67, 17, 0),
+/*2038*/ SPY(68, 17, 0)
 };
 
 extern struct timezone sys_tz;
@@ -115,7 +117,7 @@ time_t *udf_stamp_to_time(time_t *dest, long *dest_usec, kernel_timestamp src)
         return dest;
 }
 
-kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
+kernel_timestamp *udf_time_to_stamp(kernel_timestamp *dest, struct timespec ts)
 {
         long int days, rem, y;
         const unsigned short int *ip;
@@ -137,7 +139,7 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
         dest->second = rem % 60;
         y = 1970;
 
-#define DIV(a,b) ((a) / (b) - ((a) % (b) < 0))
+#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
 #define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
 
         while (days < 0 || days >= (__isleap(y) ? 366 : 365)) {
@@ -145,8 +147,8 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
 
                 /* Adjust DAYS and Y to match the guessed year.  */
                 days -= ((yg - y) * 365
-                         + LEAPS_THRU_END_OF (yg - 1)
-                         - LEAPS_THRU_END_OF (y - 1));
+                         + LEAPS_THRU_END_OF(yg - 1)
+                         - LEAPS_THRU_END_OF(y - 1));
                 y = yg;
         }
         dest->year = y;
@@ -158,7 +160,8 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
         dest->day = days + 1;
 
         dest->centiseconds = ts.tv_nsec / 10000000;
-        dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000) / 100;
+        dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 -
+                                        dest->centiseconds * 10000) / 100;
         dest->microseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000 -
                               dest->hundredsOfMicroseconds * 100);
         return dest;
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index 9e6099c26c27..e533b11703bf 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -136,12 +136,18 @@ int udf_CS0toUTF8(struct ustr *utf_o, struct ustr *ocu_i)
                 if (c < 0x80U) {
                         utf_o->u_name[utf_o->u_len++] = (uint8_t)c;
                 } else if (c < 0x800U) {
-                        utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xc0 | (c >> 6));
-                        utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f));
+                        utf_o->u_name[utf_o->u_len++] =
+                                                (uint8_t)(0xc0 | (c >> 6));
+                        utf_o->u_name[utf_o->u_len++] =
+                                                (uint8_t)(0x80 | (c & 0x3f));
                 } else {
-                        utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xe0 | (c >> 12));
-                        utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | ((c >> 6) & 0x3f));
-                        utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f));
+                        utf_o->u_name[utf_o->u_len++] =
+                                                (uint8_t)(0xe0 | (c >> 12));
+                        utf_o->u_name[utf_o->u_len++] =
+                                                (uint8_t)(0x80 |
+                                                          ((c >> 6) & 0x3f));
+                        utf_o->u_name[utf_o->u_len++] =
+                                                (uint8_t)(0x80 | (c & 0x3f));
                 }
         }
         utf_o->u_cmpID = 8;
@@ -232,9 +238,8 @@ try_again:
                         goto error_out;
                 }
 
-                if (max_val == 0xffffU) {
+                if (max_val == 0xffffU)
                         ocu[++u_len] = (uint8_t)(utf_char >> 8);
-                }
                 ocu[++u_len] = (uint8_t)(utf_char & 0xffU);
         }
 
@@ -330,29 +335,29 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
         struct ustr filename, unifilename;
         int len;
 
-        if (udf_build_ustr_exact(&unifilename, sname, flen)) {
+        if (udf_build_ustr_exact(&unifilename, sname, flen))
                 return 0;
-        }
 
         if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
                 if (!udf_CS0toUTF8(&filename, &unifilename)) {
-                        udf_debug("Failed in udf_get_filename: sname = %s\n", sname);
+                        udf_debug("Failed in udf_get_filename: sname = %s\n",
+                                  sname);
                         return 0;
                 }
         } else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {
-                if (!udf_CS0toNLS(UDF_SB(sb)->s_nls_map, &filename, &unifilename)) {
-                        udf_debug("Failed in udf_get_filename: sname = %s\n", sname);
+                if (!udf_CS0toNLS(UDF_SB(sb)->s_nls_map, &filename,
+                                  &unifilename)) {
+                        udf_debug("Failed in udf_get_filename: sname = %s\n",
+                                  sname);
                         return 0;
                 }
-        } else {
+        } else
                 return 0;
-        }
 
         len = udf_translate_to_linux(dname, filename.u_name, filename.u_len,
                                      unifilename.u_name, unifilename.u_len);
-        if (len) {
+        if (len)
                 return len;
-        }
 
         return 0;
 }
@@ -363,23 +368,20 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname,
         struct ustr unifilename;
         int namelen;
 
-        if (!(udf_char_to_ustr(&unifilename, sname, flen))) {
+        if (!udf_char_to_ustr(&unifilename, sname, flen))
                 return 0;
-        }
 
         if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
                 namelen = udf_UTF8toCS0(dname, &unifilename, UDF_NAME_LEN);
-                if (!namelen) {
+                if (!namelen)
                         return 0;
-                }
         } else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {
-                namelen = udf_NLStoCS0(UDF_SB(sb)->s_nls_map, dname, &unifilename, UDF_NAME_LEN);
-                if (!namelen) {
+                namelen = udf_NLStoCS0(UDF_SB(sb)->s_nls_map, dname,
+                                        &unifilename, UDF_NAME_LEN);
+                if (!namelen)
                         return 0;
-                }
-        } else {
+        } else
                 return 0;
-        }
 
         return namelen;
 }
@@ -389,8 +391,9 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname,
 #define CRC_MARK                '#'
 #define EXT_SIZE                5
 
-static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen,
-                                  uint8_t *fidName, int fidNameLen)
+static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
+                                  int udfLen, uint8_t *fidName,
+                                  int fidNameLen)
 {
         int index, newIndex = 0, needsCRC = 0;
         int extIndex = 0, newExtIndex = 0, hasExt = 0;
@@ -409,13 +412,16 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen
                         if (curr == '/' || curr == 0) {
                                 needsCRC = 1;
                                 curr = ILLEGAL_CHAR_MARK;
-                                while (index + 1 < udfLen && (udfName[index + 1] == '/' ||
-                                                              udfName[index + 1] == 0))
+                                while (index + 1 < udfLen &&
+                                                (udfName[index + 1] == '/' ||
+                                                 udfName[index + 1] == 0))
                                         index++;
-                        } if (curr == EXT_MARK && (udfLen - index - 1) <= EXT_SIZE) {
-                                if (udfLen == index + 1) {
+                        }
+                        if (curr == EXT_MARK &&
+                                        (udfLen - index - 1) <= EXT_SIZE) {
+                                if (udfLen == index + 1)
                                         hasExt = 0;
-                                } else {
+                                else {
                                         hasExt = 1;
                                         extIndex = index;
                                         newExtIndex = newIndex;
@@ -433,16 +439,18 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen
 
                 if (hasExt) {
                         int maxFilenameLen;
-                        for(index = 0; index < EXT_SIZE && extIndex + index + 1 < udfLen; index++) {
+                        for (index = 0;
+                             index < EXT_SIZE && extIndex + index + 1 < udfLen;
+                             index++) {
                                 curr = udfName[extIndex + index + 1];
 
                                 if (curr == '/' || curr == 0) {
                                         needsCRC = 1;
                                         curr = ILLEGAL_CHAR_MARK;
-                                        while(extIndex + index + 2 < udfLen &&
-                                              (index + 1 < EXT_SIZE
-                                               && (udfName[extIndex + index + 2] == '/' ||
-                                                   udfName[extIndex + index + 2] == 0)))
+                                        while (extIndex + index + 2 < udfLen &&
+                                              (index + 1 < EXT_SIZE &&
+                                                (udfName[extIndex + index + 2] == '/' ||
+                                                 udfName[extIndex + index + 2] == 0)))
                                                 index++;
                                 }
                                 ext[localExtIndex++] = curr;
@@ -452,9 +460,8 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen
                                 newIndex = maxFilenameLen;
                         else
                                 newIndex = newExtIndex;
-                } else if (newIndex > 250) {
+                } else if (newIndex > 250)
                         newIndex = 250;
-                }
                 newName[newIndex++] = CRC_MARK;
                 valueCRC = udf_crc(fidName, fidNameLen, 0);
                 newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index f63a09ce8683..1fca381f0ce2 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -9,7 +9,6 @@
  */
 
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/stat.h>
 #include <linux/time.h>
 #include <linux/string.h>
@@ -19,6 +18,7 @@
 #include <linux/bitops.h>
 #include <asm/byteorder.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
diff --git a/fs/ufs/cylinder.c b/fs/ufs/cylinder.c
index 2a815665644f..b4676322ddb6 100644
--- a/fs/ufs/cylinder.c
+++ b/fs/ufs/cylinder.c
@@ -9,7 +9,6 @@
  */
 
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/time.h>
 #include <linux/stat.h>
 #include <linux/string.h>
@@ -17,6 +16,7 @@
 
 #include <asm/byteorder.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
index aaf2878305ce..ef563fc8d72c 100644
--- a/fs/ufs/dir.c
+++ b/fs/ufs/dir.c
@@ -18,9 +18,9 @@
 
 #include <linux/time.h>
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/swap.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index a46c97bf023f..625ef17c6f83 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -24,9 +24,9 @@
  */
 
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/buffer_head.h>  /* for sync_mapping_buffers() */
 
+#include "ufs_fs.h"
 #include "ufs.h"
 
 
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 7e260bc0d94f..ac181f6806a3 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -24,7 +24,6 @@
  */
 
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/time.h>
 #include <linux/stat.h>
 #include <linux/string.h>
@@ -34,6 +33,7 @@
 #include <linux/bitops.h>
 #include <asm/byteorder.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 4320782761ae..5446b888fc8e 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -30,7 +30,6 @@
 
 #include <linux/errno.h>
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/time.h>
 #include <linux/stat.h>
 #include <linux/string.h>
@@ -38,6 +37,7 @@
 #include <linux/smp_lock.h>
 #include <linux/buffer_head.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
@@ -714,26 +714,30 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
         return 0;
 }
 
-void ufs_read_inode(struct inode * inode)
+struct inode *ufs_iget(struct super_block *sb, unsigned long ino)
 {
-        struct ufs_inode_info *ufsi = UFS_I(inode);
-        struct super_block * sb;
-        struct ufs_sb_private_info * uspi;
+        struct ufs_inode_info *ufsi;
+        struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
         struct buffer_head * bh;
+        struct inode *inode;
         int err;
 
-        UFSD("ENTER, ino %lu\n", inode->i_ino);
-
-        sb = inode->i_sb;
-        uspi = UFS_SB(sb)->s_uspi;
+        UFSD("ENTER, ino %lu\n", ino);
 
-        if (inode->i_ino < UFS_ROOTINO ||
-            inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
+        if (ino < UFS_ROOTINO || ino > (uspi->s_ncg * uspi->s_ipg)) {
                 ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n",
-                            inode->i_ino);
-                goto bad_inode;
+                            ino);
+                return ERR_PTR(-EIO);
         }
 
+        inode = iget_locked(sb, ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+
+        ufsi = UFS_I(inode);
+
         bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
         if (!bh) {
                 ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n",
@@ -765,10 +769,12 @@ void ufs_read_inode(struct inode * inode)
         brelse(bh);
 
         UFSD("EXIT\n");
-        return;
+        unlock_new_inode(inode);
+        return inode;
 
 bad_inode:
-        make_bad_inode(inode);
+        iget_failed(inode);
+        return ERR_PTR(-EIO);
 }
 
 static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index d8bfbee2fe2b..e3a9b1fac75a 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -29,8 +29,9 @@
 
 #include <linux/time.h>
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/smp_lock.h>
+
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "util.h"
 
@@ -57,10 +58,10 @@ static struct dentry *ufs_lookup(struct inode * dir, struct dentry *dentry, stru
         lock_kernel();
         ino = ufs_inode_by_name(dir, dentry);
         if (ino) {
-                inode = iget(dir->i_sb, ino);
-                if (!inode) {
+                inode = ufs_iget(dir->i_sb, ino);
+                if (IS_ERR(inode)) {
                         unlock_kernel();
-                        return ERR_PTR(-EACCES);
+                        return ERR_CAST(inode);
                 }
         }
         unlock_kernel();
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 0072cb33ebec..85b22b5977fa 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -76,7 +76,6 @@
 
 #include <linux/errno.h>
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/stat.h>
@@ -91,6 +90,7 @@
 #include <linux/mount.h>
 #include <linux/seq_file.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
@@ -131,6 +131,8 @@ static void ufs_print_super_stuff(struct super_block *sb,
                 printk(KERN_INFO"  cs_nffree(Num of free frags): %llu\n",
                        (unsigned long long)
                        fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree));
+                printk(KERN_INFO"  fs_maxsymlinklen: %u\n",
+                       fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen));
         } else {
                 printk(" sblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_sblkno));
                 printk(" cblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_cblkno));
@@ -633,6 +635,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
         unsigned block_size, super_block_size;
         unsigned flags;
         unsigned super_block_offset;
+        int ret = -EINVAL;
 
         uspi = NULL;
         ubh = NULL;
@@ -1060,17 +1063,21 @@ magic_found:
         uspi->s_bpf = uspi->s_fsize << 3;
         uspi->s_bpfshift = uspi->s_fshift + 3;
         uspi->s_bpfmask = uspi->s_bpf - 1;
-        if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) ==
-            UFS_MOUNT_UFSTYPE_44BSD)
+        if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD ||
+            (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2)
                 uspi->s_maxsymlinklen =
                     fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen);
 
-        inode = iget(sb, UFS_ROOTINO);
-        if (!inode || is_bad_inode(inode))
+        inode = ufs_iget(sb, UFS_ROOTINO);
+        if (IS_ERR(inode)) {
+                ret = PTR_ERR(inode);
                 goto failed;
+        }
         sb->s_root = d_alloc_root(inode);
-        if (!sb->s_root)
+        if (!sb->s_root) {
+                ret = -ENOMEM;
                 goto dalloc_failed;
+        }
 
         ufs_setup_cstotal(sb);
         /*
@@ -1092,7 +1099,7 @@ failed:
         kfree(sbi);
         sb->s_fs_info = NULL;
         UFSD("EXIT (FAILED)\n");
-        return -EINVAL;
+        return ret;
 
 failed_nomem:
         UFSD("EXIT (NOMEM)\n");
@@ -1326,7 +1333,6 @@ static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t,
 static const struct super_operations ufs_super_ops = {
         .alloc_inode    = ufs_alloc_inode,
         .destroy_inode  = ufs_destroy_inode,
-        .read_inode     = ufs_read_inode,
         .write_inode    = ufs_write_inode,
         .delete_inode   = ufs_delete_inode,
         .put_super      = ufs_put_super,
diff --git a/fs/ufs/symlink.c b/fs/ufs/symlink.c
index 43ac10e75a4a..c0156eda44bc 100644
--- a/fs/ufs/symlink.c
+++ b/fs/ufs/symlink.c
@@ -27,7 +27,8 @@
 
 #include <linux/fs.h>
 #include <linux/namei.h>
-#include <linux/ufs_fs.h>
+
+#include "ufs_fs.h"
 #include "ufs.h"
 
 
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index 311ded34c2b2..41dd431ce228 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -36,7 +36,6 @@
 
 #include <linux/errno.h>
 #include <linux/fs.h>
-#include <linux/ufs_fs.h>
 #include <linux/fcntl.h>
 #include <linux/time.h>
 #include <linux/stat.h>
@@ -46,6 +45,7 @@
 #include <linux/blkdev.h>
 #include <linux/sched.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index 7faa4cd71a27..fcb9231bb9ed 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -106,7 +106,7 @@ extern void ufs_free_inode (struct inode *inode);
 extern struct inode * ufs_new_inode (struct inode *, int);
 
 /* inode.c */
-extern void ufs_read_inode (struct inode *);
+extern struct inode *ufs_iget(struct super_block *, unsigned long);
 extern void ufs_put_inode (struct inode *);
 extern int ufs_write_inode (struct inode *, int);
 extern int ufs_sync_inode (struct inode *);
diff --git a/fs/ufs/ufs_fs.h b/fs/ufs/ufs_fs.h
new file mode 100644
index 000000000000..54bde1895a80
--- /dev/null
+++ b/fs/ufs/ufs_fs.h
@@ -0,0 +1,947 @@
+/*
+ *  linux/include/linux/ufs_fs.h
+ *
+ * Copyright (C) 1996
+ * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)
+ * Laboratory for Computer Science Research Computing Facility
+ * Rutgers, The State University of New Jersey
+ *
+ * Clean swab support by Fare <fare@tunes.org>
+ * just hope no one is using NNUUXXI on __?64 structure elements
+ * 64-bit clean thanks to Maciej W. Rozycki <macro@ds2.pg.gda.pl>
+ *
+ * 4.4BSD (FreeBSD) support added on February 1st 1998 by
+ * Niels Kristian Bech Jensen <nkbj@image.dk> partially based
+ * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>.
+ *
+ * NeXTstep support added on February 5th 1998 by
+ * Niels Kristian Bech Jensen <nkbj@image.dk>.
+ *
+ * Write support by Daniel Pirkl <daniel.pirkl@email.cz>
+ *
+ * HP/UX hfs filesystem support added by
+ * Martin K. Petersen <mkp@mkp.net>, August 1999
+ *
+ * UFS2 (of FreeBSD 5.x) support added by
+ * Niraj Kumar <niraj17@iitbombay.org>  , Jan 2004
+ *
+ */
+
+#ifndef __LINUX_UFS_FS_H
+#define __LINUX_UFS_FS_H
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/stat.h>
+#include <linux/fs.h>
+
+#include <asm/div64.h>
+typedef __u64 __bitwise __fs64;
+typedef __u32 __bitwise __fs32;
+typedef __u16 __bitwise __fs16;
+
+#define UFS_BBLOCK 0
+#define UFS_BBSIZE 8192
+#define UFS_SBLOCK 8192
+#define UFS_SBSIZE 8192
+
+#define UFS_SECTOR_SIZE 512
+#define UFS_SECTOR_BITS 9
+#define UFS_MAGIC  0x00011954
+#define UFS2_MAGIC 0x19540119
+#define UFS_CIGAM  0x54190100 /* byteswapped MAGIC */
+
+/* Copied from FreeBSD */
+/*
+ * Each disk drive contains some number of filesystems.
+ * A filesystem consists of a number of cylinder groups.
+ * Each cylinder group has inodes and data.
+ *
+ * A filesystem is described by its super-block, which in turn
+ * describes the cylinder groups.  The super-block is critical
+ * data and is replicated in each cylinder group to protect against
+ * catastrophic loss.  This is done at `newfs' time and the critical
+ * super-block data does not change, so the copies need not be
+ * referenced further unless disaster strikes.
+ *
+ * For filesystem fs, the offsets of the various blocks of interest
+ * are given in the super block as:
+ *      [fs->fs_sblkno]         Super-block
+ *      [fs->fs_cblkno]         Cylinder group block
+ *      [fs->fs_iblkno]         Inode blocks
+ *      [fs->fs_dblkno]         Data blocks
+ * The beginning of cylinder group cg in fs, is given by
+ * the ``cgbase(fs, cg)'' macro.
+ *
+ * Depending on the architecture and the media, the superblock may
+ * reside in any one of four places. For tiny media where every block
+ * counts, it is placed at the very front of the partition. Historically,
+ * UFS1 placed it 8K from the front to leave room for the disk label and
+ * a small bootstrap. For UFS2 it got moved to 64K from the front to leave
+ * room for the disk label and a bigger bootstrap, and for really piggy
+ * systems we check at 256K from the front if the first three fail. In
+ * all cases the size of the superblock will be SBLOCKSIZE. All values are
+ * given in byte-offset form, so they do not imply a sector size. The
+ * SBLOCKSEARCH specifies the order in which the locations should be searched.
+ */
+#define SBLOCK_FLOPPY        0
+#define SBLOCK_UFS1       8192
+#define SBLOCK_UFS2      65536
+#define SBLOCK_PIGGY    262144
+#define SBLOCKSIZE        8192
+#define SBLOCKSEARCH \
+        { SBLOCK_UFS2, SBLOCK_UFS1, SBLOCK_FLOPPY, SBLOCK_PIGGY, -1 }
+
+
+/* HP specific MAGIC values */
+
+#define UFS_MAGIC_LFN   0x00095014 /* fs supports filenames > 14 chars */
+#define UFS_CIGAM_LFN   0x14500900 /* srahc 41 < semanelif stroppus sf */
+
+#define UFS_MAGIC_SEC   0x00612195 /* B1 security fs */
+#define UFS_CIGAM_SEC   0x95216100
+
+#define UFS_MAGIC_FEA   0x00195612 /* fs_featurebits supported */
+#define UFS_CIGAM_FEA   0x12561900
+
+#define UFS_MAGIC_4GB   0x05231994 /* fs > 4 GB && fs_featurebits */
+#define UFS_CIGAM_4GB   0x94192305
+
+/* Seems somebody at HP goofed here. B1 and lfs are both 0x2 !?! */
+#define UFS_FSF_LFN     0x00000001 /* long file names */
+#define UFS_FSF_B1      0x00000002 /* B1 security */
+#define UFS_FSF_LFS     0x00000002 /* large files */
+#define UFS_FSF_LUID    0x00000004 /* large UIDs */
+
+/* End of HP stuff */
+
+
+#define UFS_BSIZE       8192
+#define UFS_MINBSIZE    4096
+#define UFS_FSIZE       1024
+#define UFS_MAXFRAG     (UFS_BSIZE / UFS_FSIZE)
+
+#define UFS_NDADDR 12
+#define UFS_NINDIR 3
+
+#define UFS_IND_BLOCK   (UFS_NDADDR + 0)
+#define UFS_DIND_BLOCK  (UFS_NDADDR + 1)
+#define UFS_TIND_BLOCK  (UFS_NDADDR + 2)
+
+#define UFS_NDIR_FRAGMENT (UFS_NDADDR << uspi->s_fpbshift)
+#define UFS_IND_FRAGMENT (UFS_IND_BLOCK << uspi->s_fpbshift)
+#define UFS_DIND_FRAGMENT (UFS_DIND_BLOCK << uspi->s_fpbshift)
+#define UFS_TIND_FRAGMENT (UFS_TIND_BLOCK << uspi->s_fpbshift)
+
+#define UFS_ROOTINO 2
+#define UFS_FIRST_INO (UFS_ROOTINO + 1)
+
+#define UFS_USEEFT  ((__u16)65535)
+
+#define UFS_FSOK      0x7c269d38
+#define UFS_FSACTIVE  ((__s8)0x00)
+#define UFS_FSCLEAN   ((__s8)0x01)
+#define UFS_FSSTABLE  ((__s8)0x02)
+#define UFS_FSOSF1    ((__s8)0x03)      /* is this correct for DEC OSF/1? */
+#define UFS_FSBAD     ((__s8)0xff)
+
+/* From here to next blank line, s_flags for ufs_sb_info */
+/* directory entry encoding */
+#define UFS_DE_MASK             0x00000010      /* mask for the following */
+#define UFS_DE_OLD              0x00000000
+#define UFS_DE_44BSD            0x00000010
+/* uid encoding */
+#define UFS_UID_MASK            0x00000060      /* mask for the following */
+#define UFS_UID_OLD             0x00000000
+#define UFS_UID_44BSD           0x00000020
+#define UFS_UID_EFT             0x00000040
+/* superblock state encoding */
+#define UFS_ST_MASK             0x00000700      /* mask for the following */
+#define UFS_ST_OLD              0x00000000
+#define UFS_ST_44BSD            0x00000100
+#define UFS_ST_SUN              0x00000200 /* Solaris */
+#define UFS_ST_SUNOS            0x00000300
+#define UFS_ST_SUNx86           0x00000400 /* Solaris x86 */
+/*cylinder group encoding */
+#define UFS_CG_MASK             0x00003000      /* mask for the following */
+#define UFS_CG_OLD              0x00000000
+#define UFS_CG_44BSD            0x00002000
+#define UFS_CG_SUN              0x00001000
+/* filesystem type encoding */
+#define UFS_TYPE_MASK           0x00010000      /* mask for the following */
+#define UFS_TYPE_UFS1           0x00000000
+#define UFS_TYPE_UFS2           0x00010000
+
+
+/* fs_inodefmt options */
+#define UFS_42INODEFMT  -1
+#define UFS_44INODEFMT  2
+
+/*
+ * MINFREE gives the minimum acceptable percentage of file system
+ * blocks which may be free. If the freelist drops below this level
+ * only the superuser may continue to allocate blocks. This may
+ * be set to 0 if no reserve of free blocks is deemed necessary,
+ * however throughput drops by fifty percent if the file system
+ * is run at between 95% and 100% full; thus the minimum default
+ * value of fs_minfree is 5%. However, to get good clustering
+ * performance, 10% is a better choice. hence we use 10% as our
+ * default value. With 10% free space, fragmentation is not a
+ * problem, so we choose to optimize for time.
+ */
+#define UFS_MINFREE         5
+#define UFS_DEFAULTOPT      UFS_OPTTIME
+
+/*
+ * Turn file system block numbers into disk block addresses.
+ * This maps file system blocks to device size blocks.
+ */
+#define ufs_fsbtodb(uspi, b)    ((b) << (uspi)->s_fsbtodb)
+#define ufs_dbtofsb(uspi, b)    ((b) >> (uspi)->s_fsbtodb)
+
+/*
+ * Cylinder group macros to locate things in cylinder groups.
+ * They calc file system addresses of cylinder group data structures.
+ */
+#define ufs_cgbase(c)   (uspi->s_fpg * (c))
+#define ufs_cgstart(c)  ((uspi)->fs_magic == UFS2_MAGIC ?  ufs_cgbase(c) : \
+        (ufs_cgbase(c)  + uspi->s_cgoffset * ((c) & ~uspi->s_cgmask)))
+#define ufs_cgsblock(c) (ufs_cgstart(c) + uspi->s_sblkno)       /* super blk */
+#define ufs_cgcmin(c)   (ufs_cgstart(c) + uspi->s_cblkno)       /* cg block */
+#define ufs_cgimin(c)   (ufs_cgstart(c) + uspi->s_iblkno)       /* inode blk */
+#define ufs_cgdmin(c)   (ufs_cgstart(c) + uspi->s_dblkno)       /* 1st data */
+
+/*
+ * Macros for handling inode numbers:
+ *     inode number to file system block offset.
+ *     inode number to cylinder group number.
+ *     inode number to file system block address.
+ */
+#define ufs_inotocg(x)          ((x) / uspi->s_ipg)
+#define ufs_inotocgoff(x)       ((x) % uspi->s_ipg)
+#define ufs_inotofsba(x)        (((u64)ufs_cgimin(ufs_inotocg(x))) + ufs_inotocgoff(x) / uspi->s_inopf)
+#define ufs_inotofsbo(x)        ((x) % uspi->s_inopf)
+
+/*
+ * Compute the cylinder and rotational position of a cyl block addr.
+ */
+#define ufs_cbtocylno(bno) \
+        ((bno) * uspi->s_nspf / uspi->s_spc)
+#define ufs_cbtorpos(bno) \
+        ((((bno) * uspi->s_nspf % uspi->s_spc / uspi->s_nsect \
+        * uspi->s_trackskew + (bno) * uspi->s_nspf % uspi->s_spc \
+        % uspi->s_nsect * uspi->s_interleave) % uspi->s_nsect \
+        * uspi->s_nrpos) / uspi->s_npsect)
+
+/*
+ * The following macros optimize certain frequently calculated
+ * quantities by using shifts and masks in place of divisions
+ * modulos and multiplications.
+ */
+#define ufs_blkoff(loc)         ((loc) & uspi->s_qbmask)
+#define ufs_fragoff(loc)        ((loc) & uspi->s_qfmask)
+#define ufs_lblktosize(blk)     ((blk) << uspi->s_bshift)
+#define ufs_lblkno(loc)         ((loc) >> uspi->s_bshift)
+#define ufs_numfrags(loc)       ((loc) >> uspi->s_fshift)
+#define ufs_blkroundup(size)    (((size) + uspi->s_qbmask) & uspi->s_bmask)
+#define ufs_fragroundup(size)   (((size) + uspi->s_qfmask) & uspi->s_fmask)
+#define ufs_fragstoblks(frags)  ((frags) >> uspi->s_fpbshift)
+#define ufs_blkstofrags(blks)   ((blks) << uspi->s_fpbshift)
+#define ufs_fragnum(fsb)        ((fsb) & uspi->s_fpbmask)
+#define ufs_blknum(fsb)         ((fsb) & ~uspi->s_fpbmask)
+
+#define UFS_MAXNAMLEN 255
+#define UFS_MAXMNTLEN 512
+#define UFS2_MAXMNTLEN 468
+#define UFS2_MAXVOLLEN 32
+#define UFS_MAXCSBUFS 31
+#define UFS_LINK_MAX 32000
+/*
+#define UFS2_NOCSPTRS   ((128 / sizeof(void *)) - 4)
+*/
+#define UFS2_NOCSPTRS   28
+
+/*
+ * UFS_DIR_PAD defines the directory entries boundaries
+ * (must be a multiple of 4)
+ */
+#define UFS_DIR_PAD                     4
+#define UFS_DIR_ROUND                   (UFS_DIR_PAD - 1)
+#define UFS_DIR_REC_LEN(name_len)       (((name_len) + 1 + 8 + UFS_DIR_ROUND) & ~UFS_DIR_ROUND)
+
+struct ufs_timeval {
+        __fs32  tv_sec;
+        __fs32  tv_usec;
+};
+
+struct ufs_dir_entry {
+        __fs32  d_ino;                  /* inode number of this entry */
+        __fs16  d_reclen;               /* length of this entry */
+        union {
+                __fs16  d_namlen;               /* actual length of d_name */
+                struct {
+                        __u8    d_type;         /* file type */
+                        __u8    d_namlen;       /* length of string in d_name */
+                } d_44;
+        } d_u;
+        __u8    d_name[UFS_MAXNAMLEN + 1];      /* file name */
+};
+
+struct ufs_csum {
+        __fs32  cs_ndir;        /* number of directories */
+        __fs32  cs_nbfree;      /* number of free blocks */
+        __fs32  cs_nifree;      /* number of free inodes */
+        __fs32  cs_nffree;      /* number of free frags */
+};
+struct ufs2_csum_total {
+        __fs64  cs_ndir;        /* number of directories */
+        __fs64  cs_nbfree;      /* number of free blocks */
+        __fs64  cs_nifree;      /* number of free inodes */
+        __fs64  cs_nffree;      /* number of free frags */
+        __fs64   cs_numclusters;        /* number of free clusters */
+        __fs64   cs_spare[3];   /* future expansion */
+};
+
+struct ufs_csum_core {
+        __u64   cs_ndir;        /* number of directories */
+        __u64   cs_nbfree;      /* number of free blocks */
+        __u64   cs_nifree;      /* number of free inodes */
+        __u64   cs_nffree;      /* number of free frags */
+        __u64   cs_numclusters; /* number of free clusters */
+};
+
+/*
+ * File system flags
+ */
+#define UFS_UNCLEAN      0x01    /* file system not clean at mount (unused) */
+#define UFS_DOSOFTDEP    0x02    /* file system using soft dependencies */
+#define UFS_NEEDSFSCK    0x04    /* needs sync fsck (FreeBSD compat, unused) */
+#define UFS_INDEXDIRS    0x08    /* kernel supports indexed directories */
+#define UFS_ACLS         0x10    /* file system has ACLs enabled */
+#define UFS_MULTILABEL   0x20    /* file system is MAC multi-label */
+#define UFS_FLAGS_UPDATED 0x80   /* flags have been moved to new location */
+
+#if 0
+/*
+ * This is the actual superblock, as it is laid out on the disk.
+ * Do NOT use this structure, because of sizeof(ufs_super_block) > 512 and
+ * it may occupy several blocks, use
+ * struct ufs_super_block_(first,second,third) instead.
+ */
+struct ufs_super_block {
+        union {
+                struct {
+                        __fs32  fs_link;        /* UNUSED */
+                } fs_42;
+                struct {
+                        __fs32  fs_state;       /* file system state flag */
+                } fs_sun;
+        } fs_u0;
+        __fs32  fs_rlink;       /* UNUSED */
+        __fs32  fs_sblkno;      /* addr of super-block in filesys */
+        __fs32  fs_cblkno;      /* offset of cyl-block in filesys */
+        __fs32  fs_iblkno;      /* offset of inode-blocks in filesys */
+        __fs32  fs_dblkno;      /* offset of first data after cg */
+        __fs32  fs_cgoffset;    /* cylinder group offset in cylinder */
+        __fs32  fs_cgmask;      /* used to calc mod fs_ntrak */
+        __fs32  fs_time;        /* last time written -- time_t */
+        __fs32  fs_size;        /* number of blocks in fs */
+        __fs32  fs_dsize;       /* number of data blocks in fs */
+        __fs32  fs_ncg;         /* number of cylinder groups */
+        __fs32  fs_bsize;       /* size of basic blocks in fs */
+        __fs32  fs_fsize;       /* size of frag blocks in fs */
+        __fs32  fs_frag;        /* number of frags in a block in fs */
+/* these are configuration parameters */
+        __fs32  fs_minfree;     /* minimum percentage of free blocks */
+        __fs32  fs_rotdelay;    /* num of ms for optimal next block */
+        __fs32  fs_rps;         /* disk revolutions per second */
+/* these fields can be computed from the others */
+        __fs32  fs_bmask;       /* ``blkoff'' calc of blk offsets */
+        __fs32  fs_fmask;       /* ``fragoff'' calc of frag offsets */
+        __fs32  fs_bshift;      /* ``lblkno'' calc of logical blkno */
+        __fs32  fs_fshift;      /* ``numfrags'' calc number of frags */
+/* these are configuration parameters */
+        __fs32  fs_maxcontig;   /* max number of contiguous blks */
+        __fs32  fs_maxbpg;      /* max number of blks per cyl group */
+/* these fields can be computed from the others */
+        __fs32  fs_fragshift;   /* block to frag shift */
+        __fs32  fs_fsbtodb;     /* fsbtodb and dbtofsb shift constant */
+        __fs32  fs_sbsize;      /* actual size of super block */
+        __fs32  fs_csmask;      /* csum block offset */
+        __fs32  fs_csshift;     /* csum block number */
+        __fs32  fs_nindir;      /* value of NINDIR */
+        __fs32  fs_inopb;       /* value of INOPB */
+        __fs32  fs_nspf;        /* value of NSPF */
+/* yet another configuration parameter */
+        __fs32  fs_optim;       /* optimization preference, see below */
+/* these fields are derived from the hardware */
+        union {
+                struct {
+                        __fs32  fs_npsect;      /* # sectors/track including spares */
+                } fs_sun;
+                struct {
+                        __fs32  fs_state;       /* file system state time stamp */
+                } fs_sunx86;
+        } fs_u1;
+        __fs32  fs_interleave;  /* hardware sector interleave */
+        __fs32  fs_trackskew;   /* sector 0 skew, per track */
+/* a unique id for this filesystem (currently unused and unmaintained) */
+/* In 4.3 Tahoe this space is used by fs_headswitch and fs_trkseek */
+/* Neither of those fields is used in the Tahoe code right now but */
+/* there could be problems if they are.                            */
+        __fs32  fs_id[2];       /* file system id */
+/* sizes determined by number of cylinder groups and their sizes */
+        __fs32  fs_csaddr;      /* blk addr of cyl grp summary area */
+        __fs32  fs_cssize;      /* size of cyl grp summary area */
+        __fs32  fs_cgsize;      /* cylinder group size */
+/* these fields are derived from the hardware */
+        __fs32  fs_ntrak;       /* tracks per cylinder */
+        __fs32  fs_nsect;       /* sectors per track */
+        __fs32  fs_spc;         /* sectors per cylinder */
+/* this comes from the disk driver partitioning */
+        __fs32  fs_ncyl;        /* cylinders in file system */
+/* these fields can be computed from the others */
+        __fs32  fs_cpg;         /* cylinders per group */
+        __fs32  fs_ipg;         /* inodes per cylinder group */
+        __fs32  fs_fpg;         /* blocks per group * fs_frag */
+/* this data must be re-computed after crashes */
+        struct ufs_csum fs_cstotal;     /* cylinder summary information */
+/* these fields are cleared at mount time */
+        __s8    fs_fmod;        /* super block modified flag */
+        __s8    fs_clean;       /* file system is clean flag */
+        __s8    fs_ronly;       /* mounted read-only flag */
+        __s8    fs_flags;
+        union {
+                struct {
+                        __s8    fs_fsmnt[UFS_MAXMNTLEN];/* name mounted on */
+                        __fs32  fs_cgrotor;     /* last cg searched */
+                        __fs32  fs_csp[UFS_MAXCSBUFS];/*list of fs_cs info buffers */
+                        __fs32  fs_maxcluster;
+                        __fs32  fs_cpc;         /* cyl per cycle in postbl */
+                        __fs16  fs_opostbl[16][8]; /* old rotation block list head */
+                } fs_u1;
+                struct {
+                        __s8  fs_fsmnt[UFS2_MAXMNTLEN]; /* name mounted on */
+                        __u8   fs_volname[UFS2_MAXVOLLEN]; /* volume name */
+                        __fs64  fs_swuid;               /* system-wide uid */
+                        __fs32  fs_pad; /* due to alignment of fs_swuid */
+                        __fs32   fs_cgrotor;     /* last cg searched */
+                        __fs32   fs_ocsp[UFS2_NOCSPTRS]; /*list of fs_cs info buffers */
+                        __fs32   fs_contigdirs;/*# of contiguously allocated dirs */
+                        __fs32   fs_csp;        /* cg summary info buffer for fs_cs */
+                        __fs32   fs_maxcluster;
+                        __fs32   fs_active;/* used by snapshots to track fs */
+                        __fs32   fs_old_cpc;    /* cyl per cycle in postbl */
+                        __fs32   fs_maxbsize;/*maximum blocking factor permitted */
+                        __fs64   fs_sparecon64[17];/*old rotation block list head */
+                        __fs64   fs_sblockloc; /* byte offset of standard superblock */
+                        struct  ufs2_csum_total fs_cstotal;/*cylinder summary information*/
+                        struct  ufs_timeval    fs_time;         /* last time written */
+                        __fs64    fs_size;              /* number of blocks in fs */
+                        __fs64    fs_dsize;     /* number of data blocks in fs */
+                        __fs64   fs_csaddr;     /* blk addr of cyl grp summary area */
+                        __fs64    fs_pendingblocks;/* blocks in process of being freed */
+                        __fs32    fs_pendinginodes;/*inodes in process of being freed */
+                } fs_u2;
+        }  fs_u11;
+        union {
+                struct {
+                        __fs32  fs_sparecon[53];/* reserved for future constants */
+                        __fs32  fs_reclaim;
+                        __fs32  fs_sparecon2[1];
+                        __fs32  fs_state;       /* file system state time stamp */
+                        __fs32  fs_qbmask[2];   /* ~usb_bmask */
+                        __fs32  fs_qfmask[2];   /* ~usb_fmask */
+                } fs_sun;
+                struct {
+                        __fs32  fs_sparecon[53];/* reserved for future constants */
+                        __fs32  fs_reclaim;
+                        __fs32  fs_sparecon2[1];
+                        __fs32  fs_npsect;      /* # sectors/track including spares */
+                        __fs32  fs_qbmask[2];   /* ~usb_bmask */
+                        __fs32  fs_qfmask[2];   /* ~usb_fmask */
+                } fs_sunx86;
+                struct {
+                        __fs32  fs_sparecon[50];/* reserved for future constants */
+                        __fs32  fs_contigsumsize;/* size of cluster summary array */
+                        __fs32  fs_maxsymlinklen;/* max length of an internal symlink */
+                        __fs32  fs_inodefmt;    /* format of on-disk inodes */
+                        __fs32  fs_maxfilesize[2];      /* max representable file size */
+                        __fs32  fs_qbmask[2];   /* ~usb_bmask */
+                        __fs32  fs_qfmask[2];   /* ~usb_fmask */
+                        __fs32  fs_state;       /* file system state time stamp */
+                } fs_44;
+        } fs_u2;
+        __fs32  fs_postblformat;        /* format of positional layout tables */
+        __fs32  fs_nrpos;               /* number of rotational positions */
+        __fs32  fs_postbloff;           /* (__s16) rotation block list head */
+        __fs32  fs_rotbloff;            /* (__u8) blocks for each rotation */
+        __fs32  fs_magic;               /* magic number */
+        __u8    fs_space[1];            /* list of blocks for each rotation */
+};
+#endif/*struct ufs_super_block*/
+
+/*
+ * Preference for optimization.
+ */
+#define UFS_OPTTIME     0       /* minimize allocation time */
+#define UFS_OPTSPACE    1       /* minimize disk fragmentation */
+
+/*
+ * Rotational layout table format types
+ */
+#define UFS_42POSTBLFMT         -1      /* 4.2BSD rotational table format */
+#define UFS_DYNAMICPOSTBLFMT    1       /* dynamic rotational table format */
+
+/*
+ * Convert cylinder group to base address of its global summary info.
+ */
+#define fs_cs(indx) s_csp[(indx)]
+
+/*
+ * Cylinder group block for a file system.
+ *
+ * Writable fields in the cylinder group are protected by the associated
+ * super block lock fs->fs_lock.
+ */
+#define CG_MAGIC        0x090255
+#define ufs_cg_chkmagic(sb, ucg) \
+        (fs32_to_cpu((sb), (ucg)->cg_magic) == CG_MAGIC)
+/*
+ * Macros for access to old cylinder group array structures
+ */
+#define ufs_ocg_blktot(sb, ucg)      fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_btot)
+#define ufs_ocg_blks(sb, ucg, cylno) fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_b[cylno])
+#define ufs_ocg_inosused(sb, ucg)    fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_iused)
+#define ufs_ocg_blksfree(sb, ucg)    fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_free)
+#define ufs_ocg_chkmagic(sb, ucg) \
+        (fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_magic) == CG_MAGIC)
+
+/*
+ * size of this structure is 172 B
+ */
+struct  ufs_cylinder_group {
+        __fs32  cg_link;                /* linked list of cyl groups */
+        __fs32  cg_magic;               /* magic number */
+        __fs32  cg_time;                /* time last written */
+        __fs32  cg_cgx;                 /* we are the cgx'th cylinder group */
+        __fs16  cg_ncyl;                /* number of cyl's this cg */
+        __fs16  cg_niblk;               /* number of inode blocks this cg */
+        __fs32  cg_ndblk;               /* number of data blocks this cg */
+        struct  ufs_csum cg_cs;         /* cylinder summary information */
+        __fs32  cg_rotor;               /* position of last used block */
+        __fs32  cg_frotor;              /* position of last used frag */
+        __fs32  cg_irotor;              /* position of last used inode */
+        __fs32  cg_frsum[UFS_MAXFRAG];  /* counts of available frags */
+        __fs32  cg_btotoff;             /* (__u32) block totals per cylinder */
+        __fs32  cg_boff;                /* (short) free block positions */
+        __fs32  cg_iusedoff;            /* (char) used inode map */
+        __fs32  cg_freeoff;             /* (u_char) free block map */
+        __fs32  cg_nextfreeoff;         /* (u_char) next available space */
+        union {
+                struct {
+                        __fs32  cg_clustersumoff;       /* (u_int32) counts of avail clusters */
+                        __fs32  cg_clusteroff;          /* (u_int8) free cluster map */
+                        __fs32  cg_nclusterblks;        /* number of clusters this cg */
+                        __fs32  cg_sparecon[13];        /* reserved for future use */
+                } cg_44;
+                struct {
+                        __fs32  cg_clustersumoff;/* (u_int32) counts of avail clusters */
+                        __fs32  cg_clusteroff;  /* (u_int8) free cluster map */
+                        __fs32  cg_nclusterblks;/* number of clusters this cg */
+                        __fs32   cg_niblk; /* number of inode blocks this cg */
+                        __fs32   cg_initediblk; /* last initialized inode */
+                        __fs32   cg_sparecon32[3];/* reserved for future use */
+                        __fs64   cg_time;       /* time last written */
+                        __fs64  cg_sparecon[3]; /* reserved for future use */
+                } cg_u2;
+                __fs32  cg_sparecon[16];        /* reserved for future use */
+        } cg_u;
+        __u8    cg_space[1];            /* space for cylinder group maps */
+/* actually longer */
+};
+
+/* Historic Cylinder group info */
+struct ufs_old_cylinder_group {
+        __fs32  cg_link;                /* linked list of cyl groups */
+        __fs32  cg_rlink;               /* for incore cyl groups     */
+        __fs32  cg_time;                /* time last written */
+        __fs32  cg_cgx;                 /* we are the cgx'th cylinder group */
+        __fs16  cg_ncyl;                /* number of cyl's this cg */
+        __fs16  cg_niblk;               /* number of inode blocks this cg */
+        __fs32  cg_ndblk;               /* number of data blocks this cg */
+        struct  ufs_csum cg_cs;         /* cylinder summary information */
+        __fs32  cg_rotor;               /* position of last used block */
+        __fs32  cg_frotor;              /* position of last used frag */
+        __fs32  cg_irotor;              /* position of last used inode */
+        __fs32  cg_frsum[8];            /* counts of available frags */
+        __fs32  cg_btot[32];            /* block totals per cylinder */
+        __fs16  cg_b[32][8];            /* positions of free blocks */
+        __u8    cg_iused[256];          /* used inode map */
+        __fs32  cg_magic;               /* magic number */
+        __u8    cg_free[1];             /* free block map */
+/* actually longer */
+};
+
+/*
+ * structure of an on-disk inode
+ */
+struct ufs_inode {
+        __fs16  ui_mode;                /*  0x0 */
+        __fs16  ui_nlink;               /*  0x2 */
+        union {
+                struct {
+                        __fs16  ui_suid;        /*  0x4 */
+                        __fs16  ui_sgid;        /*  0x6 */
+                } oldids;
+                __fs32  ui_inumber;             /*  0x4 lsf: inode number */
+                __fs32  ui_author;              /*  0x4 GNU HURD: author */
+        } ui_u1;
+        __fs64  ui_size;                /*  0x8 */
+        struct ufs_timeval ui_atime;    /* 0x10 access */
+        struct ufs_timeval ui_mtime;    /* 0x18 modification */
+        struct ufs_timeval ui_ctime;    /* 0x20 creation */
+        union {
+                struct {
+                        __fs32  ui_db[UFS_NDADDR];/* 0x28 data blocks */
+                        __fs32  ui_ib[UFS_NINDIR];/* 0x58 indirect blocks */
+                } ui_addr;
+                __u8    ui_symlink[4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */
+        } ui_u2;
+        __fs32  ui_flags;               /* 0x64 immutable, append-only... */
+        __fs32  ui_blocks;              /* 0x68 blocks in use */
+        __fs32  ui_gen;                 /* 0x6c like ext2 i_version, for NFS support */
+        union {
+                struct {
+                        __fs32  ui_shadow;      /* 0x70 shadow inode with security data */
+                        __fs32  ui_uid;         /* 0x74 long EFT version of uid */
+                        __fs32  ui_gid;         /* 0x78 long EFT version of gid */
+                        __fs32  ui_oeftflag;    /* 0x7c reserved */
+                } ui_sun;
+                struct {
+                        __fs32  ui_uid;         /* 0x70 File owner */
+                        __fs32  ui_gid;         /* 0x74 File group */
+                        __fs32  ui_spare[2];    /* 0x78 reserved */
+                } ui_44;
+                struct {
+                        __fs32  ui_uid;         /* 0x70 */
+                        __fs32  ui_gid;         /* 0x74 */
+                        __fs16  ui_modeh;       /* 0x78 mode high bits */
+                        __fs16  ui_spare;       /* 0x7A unused */
+                        __fs32  ui_trans;       /* 0x7c filesystem translator */
+                } ui_hurd;
+        } ui_u3;
+};
+
+#define UFS_NXADDR  2            /* External addresses in inode. */
+struct ufs2_inode {
+        __fs16     ui_mode;        /*   0: IFMT, permissions; see below. */
+        __fs16     ui_nlink;       /*   2: File link count. */
+        __fs32     ui_uid;         /*   4: File owner. */
+        __fs32     ui_gid;         /*   8: File group. */
+        __fs32     ui_blksize;     /*  12: Inode blocksize. */
+        __fs64     ui_size;        /*  16: File byte count. */
+        __fs64     ui_blocks;      /*  24: Bytes actually held. */
+        __fs64   ui_atime;       /*  32: Last access time. */
+        __fs64   ui_mtime;       /*  40: Last modified time. */
+        __fs64   ui_ctime;       /*  48: Last inode change time. */
+        __fs64   ui_birthtime;   /*  56: Inode creation time. */
+        __fs32     ui_mtimensec;   /*  64: Last modified time. */
+        __fs32     ui_atimensec;   /*  68: Last access time. */
+        __fs32     ui_ctimensec;   /*  72: Last inode change time. */
+        __fs32     ui_birthnsec;   /*  76: Inode creation time. */
+        __fs32     ui_gen;         /*  80: Generation number. */
+        __fs32     ui_kernflags;   /*  84: Kernel flags. */
+        __fs32     ui_flags;       /*  88: Status flags (chflags). */
+        __fs32     ui_extsize;     /*  92: External attributes block. */
+        __fs64     ui_extb[UFS_NXADDR];/*  96: External attributes block. */
+        union {
+                struct {
+                        __fs64     ui_db[UFS_NDADDR]; /* 112: Direct disk blocks. */
+                        __fs64     ui_ib[UFS_NINDIR];/* 208: Indirect disk blocks.*/
+                } ui_addr;
+        __u8    ui_symlink[2*4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */
+        } ui_u2;
+        __fs64     ui_spare[3];    /* 232: Reserved; currently unused */
+};
+
+
+/* FreeBSD has these in sys/stat.h */
+/* ui_flags that can be set by a file owner */
+#define UFS_UF_SETTABLE   0x0000ffff
+#define UFS_UF_NODUMP     0x00000001  /* do not dump */
+#define UFS_UF_IMMUTABLE  0x00000002  /* immutable (can't "change") */
+#define UFS_UF_APPEND     0x00000004  /* append-only */
+#define UFS_UF_OPAQUE     0x00000008  /* directory is opaque (unionfs) */
+#define UFS_UF_NOUNLINK   0x00000010  /* can't be removed or renamed */
+/* ui_flags that only root can set */
+#define UFS_SF_SETTABLE   0xffff0000
+#define UFS_SF_ARCHIVED   0x00010000  /* archived */
+#define UFS_SF_IMMUTABLE  0x00020000  /* immutable (can't "change") */
+#define UFS_SF_APPEND     0x00040000  /* append-only */
+#define UFS_SF_NOUNLINK   0x00100000  /* can't be removed or renamed */
+
+/*
+ * This structure is used for reading disk structures larger
+ * than the size of fragment.
+ */
+struct ufs_buffer_head {
+        __u64 fragment;                 /* first fragment */
+        __u64 count;                            /* number of fragments */
+        struct buffer_head * bh[UFS_MAXFRAG];   /* buffers */
+};
+
+struct ufs_cg_private_info {
+        struct ufs_buffer_head c_ubh;
+        __u32   c_cgx;          /* number of cylidner group */
+        __u16   c_ncyl;         /* number of cyl's this cg */
+        __u16   c_niblk;        /* number of inode blocks this cg */
+        __u32   c_ndblk;        /* number of data blocks this cg */
+        __u32   c_rotor;        /* position of last used block */
+        __u32   c_frotor;       /* position of last used frag */
+        __u32   c_irotor;       /* position of last used inode */
+        __u32   c_btotoff;      /* (__u32) block totals per cylinder */
+        __u32   c_boff;         /* (short) free block positions */
+        __u32   c_iusedoff;     /* (char) used inode map */
+        __u32   c_freeoff;      /* (u_char) free block map */
+        __u32   c_nextfreeoff;  /* (u_char) next available space */
+        __u32   c_clustersumoff;/* (u_int32) counts of avail clusters */
+        __u32   c_clusteroff;   /* (u_int8) free cluster map */
+        __u32   c_nclusterblks; /* number of clusters this cg */
+};
+
+
+struct ufs_sb_private_info {
+        struct ufs_buffer_head s_ubh; /* buffer containing super block */
+        struct ufs_csum_core cs_total;
+        __u32   s_sblkno;       /* offset of super-blocks in filesys */
+        __u32   s_cblkno;       /* offset of cg-block in filesys */
+        __u32   s_iblkno;       /* offset of inode-blocks in filesys */
+        __u32   s_dblkno;       /* offset of first data after cg */
+        __u32   s_cgoffset;     /* cylinder group offset in cylinder */
+        __u32   s_cgmask;       /* used to calc mod fs_ntrak */
+        __u32   s_size;         /* number of blocks (fragments) in fs */
+        __u32   s_dsize;        /* number of data blocks in fs */
+        __u64   s_u2_size;      /* ufs2: number of blocks (fragments) in fs */
+        __u64   s_u2_dsize;     /*ufs2:  number of data blocks in fs */
+        __u32   s_ncg;          /* number of cylinder groups */
+        __u32   s_bsize;        /* size of basic blocks */
+        __u32   s_fsize;        /* size of fragments */
+        __u32   s_fpb;          /* fragments per block */
+        __u32   s_minfree;      /* minimum percentage of free blocks */
+        __u32   s_bmask;        /* `blkoff'' calc of blk offsets */
+        __u32   s_fmask;        /* s_fsize mask */
+        __u32   s_bshift;       /* `lblkno'' calc of logical blkno */
+        __u32   s_fshift;       /* s_fsize shift */
+        __u32   s_fpbshift;     /* fragments per block shift */
+        __u32   s_fsbtodb;      /* fsbtodb and dbtofsb shift constant */
+        __u32   s_sbsize;       /* actual size of super block */
+        __u32   s_csmask;       /* csum block offset */
+        __u32   s_csshift;      /* csum block number */
+        __u32   s_nindir;       /* value of NINDIR */
+        __u32   s_inopb;        /* value of INOPB */
+        __u32   s_nspf;         /* value of NSPF */
+        __u32   s_npsect;       /* # sectors/track including spares */
+        __u32   s_interleave;   /* hardware sector interleave */
+        __u32   s_trackskew;    /* sector 0 skew, per track */
+        __u64   s_csaddr;       /* blk addr of cyl grp summary area */
+        __u32   s_cssize;       /* size of cyl grp summary area */
+        __u32   s_cgsize;       /* cylinder group size */
+        __u32   s_ntrak;        /* tracks per cylinder */
+        __u32   s_nsect;        /* sectors per track */
+        __u32   s_spc;          /* sectors per cylinder */
+        __u32   s_ipg;          /* inodes per cylinder group */
+        __u32   s_fpg;          /* fragments per group */
+        __u32   s_cpc;          /* cyl per cycle in postbl */
+        __s32   s_contigsumsize;/* size of cluster summary array, 44bsd */
+        __s64   s_qbmask;       /* ~usb_bmask */
+        __s64   s_qfmask;       /* ~usb_fmask */
+        __s32   s_postblformat; /* format of positional layout tables */
+        __s32   s_nrpos;        /* number of rotational positions */
+        __s32   s_postbloff;    /* (__s16) rotation block list head */
+        __s32   s_rotbloff;     /* (__u8) blocks for each rotation */
+
+        __u32   s_fpbmask;      /* fragments per block mask */
+        __u32   s_apb;          /* address per block */
+        __u32   s_2apb;         /* address per block^2 */
+        __u32   s_3apb;         /* address per block^3 */
+        __u32   s_apbmask;      /* address per block mask */
+        __u32   s_apbshift;     /* address per block shift */
+        __u32   s_2apbshift;    /* address per block shift * 2 */
+        __u32   s_3apbshift;    /* address per block shift * 3 */
+        __u32   s_nspfshift;    /* number of sector per fragment shift */
+        __u32   s_nspb;         /* number of sector per block */
+        __u32   s_inopf;        /* inodes per fragment */
+        __u32   s_sbbase;       /* offset of NeXTstep superblock */
+        __u32   s_bpf;          /* bits per fragment */
+        __u32   s_bpfshift;     /* bits per fragment shift*/
+        __u32   s_bpfmask;      /* bits per fragment mask */
+
+        __u32   s_maxsymlinklen;/* upper limit on fast symlinks' size */
+        __s32   fs_magic;       /* filesystem magic */
+        unsigned int s_dirblksize;
+};
+
+/*
+ * Sizes of this structures are:
+ *      ufs_super_block_first   512
+ *      ufs_super_block_second  512
+ *      ufs_super_block_third   356
+ */
+struct ufs_super_block_first {
+        union {
+                struct {
+                        __fs32  fs_link;        /* UNUSED */
+                } fs_42;
+                struct {
+                        __fs32  fs_state;       /* file system state flag */
+                } fs_sun;
+        } fs_u0;
+        __fs32  fs_rlink;
+        __fs32  fs_sblkno;
+        __fs32  fs_cblkno;
+        __fs32  fs_iblkno;
+        __fs32  fs_dblkno;
+        __fs32  fs_cgoffset;
+        __fs32  fs_cgmask;
+        __fs32  fs_time;
+        __fs32  fs_size;
+        __fs32  fs_dsize;
+        __fs32  fs_ncg;
+        __fs32  fs_bsize;
+        __fs32  fs_fsize;
+        __fs32  fs_frag;
+        __fs32  fs_minfree;
+        __fs32  fs_rotdelay;
+        __fs32  fs_rps;
+        __fs32  fs_bmask;
+        __fs32  fs_fmask;
+        __fs32  fs_bshift;
+        __fs32  fs_fshift;
+        __fs32  fs_maxcontig;
+        __fs32  fs_maxbpg;
+        __fs32  fs_fragshift;
+        __fs32  fs_fsbtodb;
+        __fs32  fs_sbsize;
+        __fs32  fs_csmask;
+        __fs32  fs_csshift;
+        __fs32  fs_nindir;
+        __fs32  fs_inopb;
+        __fs32  fs_nspf;
+        __fs32  fs_optim;
+        union {
+                struct {
+                        __fs32  fs_npsect;
+                } fs_sun;
+                struct {
+                        __fs32  fs_state;
+                } fs_sunx86;
+        } fs_u1;
+        __fs32  fs_interleave;
+        __fs32  fs_trackskew;
+        __fs32  fs_id[2];
+        __fs32  fs_csaddr;
+        __fs32  fs_cssize;
+        __fs32  fs_cgsize;
+        __fs32  fs_ntrak;
+        __fs32  fs_nsect;
+        __fs32  fs_spc;
+        __fs32  fs_ncyl;
+        __fs32  fs_cpg;
+        __fs32  fs_ipg;
+        __fs32  fs_fpg;
+        struct ufs_csum fs_cstotal;
+        __s8    fs_fmod;
+        __s8    fs_clean;
+        __s8    fs_ronly;
+        __s8    fs_flags;
+        __s8    fs_fsmnt[UFS_MAXMNTLEN - 212];
+
+};
+
+struct ufs_super_block_second {
+        union {
+                struct {
+                        __s8    fs_fsmnt[212];
+                        __fs32  fs_cgrotor;
+                        __fs32  fs_csp[UFS_MAXCSBUFS];
+                        __fs32  fs_maxcluster;
+                        __fs32  fs_cpc;
+                        __fs16  fs_opostbl[82];
+                } fs_u1;
+                struct {
+                        __s8  fs_fsmnt[UFS2_MAXMNTLEN - UFS_MAXMNTLEN + 212];
+                        __u8   fs_volname[UFS2_MAXVOLLEN];
+                        __fs64  fs_swuid;
+                        __fs32  fs_pad;
+                        __fs32   fs_cgrotor;
+                        __fs32   fs_ocsp[UFS2_NOCSPTRS];
+                        __fs32   fs_contigdirs;
+                        __fs32   fs_csp;
+                        __fs32   fs_maxcluster;
+                        __fs32   fs_active;
+                        __fs32   fs_old_cpc;
+                        __fs32   fs_maxbsize;
+                        __fs64   fs_sparecon64[17];
+                        __fs64   fs_sblockloc;
+                        __fs64  cs_ndir;
+                        __fs64  cs_nbfree;
+                } fs_u2;
+        } fs_un;
+};
+
+struct ufs_super_block_third {
+        union {
+                struct {
+                        __fs16  fs_opostbl[46];
+                } fs_u1;
+                struct {
+                        __fs64  cs_nifree;      /* number of free inodes */
+                        __fs64  cs_nffree;      /* number of free frags */
+                        __fs64   cs_numclusters;        /* number of free clusters */
+                        __fs64   cs_spare[3];   /* future expansion */
+                        struct  ufs_timeval    fs_time;         /* last time written */
+                        __fs64    fs_size;              /* number of blocks in fs */
+                        __fs64    fs_dsize;     /* number of data blocks in fs */
+                        __fs64   fs_csaddr;     /* blk addr of cyl grp summary area */
+                        __fs64    fs_pendingblocks;/* blocks in process of being freed */
+                        __fs32    fs_pendinginodes;/*inodes in process of being freed */
+                } __attribute__ ((packed)) fs_u2;
+        } fs_un1;
+        union {
+                struct {
+                        __fs32  fs_sparecon[53];/* reserved for future constants */
+                        __fs32  fs_reclaim;
+                        __fs32  fs_sparecon2[1];
+                        __fs32  fs_state;       /* file system state time stamp */
+                        __fs32  fs_qbmask[2];   /* ~usb_bmask */
+                        __fs32  fs_qfmask[2];   /* ~usb_fmask */
+                } fs_sun;
+                struct {
+                        __fs32  fs_sparecon[53];/* reserved for future constants */
+                        __fs32  fs_reclaim;
+                        __fs32  fs_sparecon2[1];
+                        __fs32  fs_npsect;      /* # sectors/track including spares */
+                        __fs32  fs_qbmask[2];   /* ~usb_bmask */
+                        __fs32  fs_qfmask[2];   /* ~usb_fmask */
+                } fs_sunx86;
+                struct {
+                        __fs32  fs_sparecon[50];/* reserved for future constants */
+                        __fs32  fs_contigsumsize;/* size of cluster summary array */
+                        __fs32  fs_maxsymlinklen;/* max length of an internal symlink */
+                        __fs32  fs_inodefmt;    /* format of on-disk inodes */
+                        __fs32  fs_maxfilesize[2];      /* max representable file size */
+                        __fs32  fs_qbmask[2];   /* ~usb_bmask */
+                        __fs32  fs_qfmask[2];   /* ~usb_fmask */
+                        __fs32  fs_state;       /* file system state time stamp */
+                } fs_44;
+        } fs_un2;
+        __fs32  fs_postblformat;
+        __fs32  fs_nrpos;
+        __fs32  fs_postbloff;
+        __fs32  fs_rotbloff;
+        __fs32  fs_magic;
+        __u8    fs_space[1];
+};
+
+#endif /* __LINUX_UFS_FS_H */
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index 410084dae389..85a7fc9e4a4e 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -8,9 +8,9 @@
  
 #include <linux/string.h>
 #include <linux/slab.h>
-#include <linux/ufs_fs.h>
 #include <linux/buffer_head.h>
 
+#include "ufs_fs.h"
 #include "ufs.h"
 #include "swab.h"
 #include "util.h"
diff --git a/fs/utimes.c b/fs/utimes.c
index b9912ecbee24..b18da9c0b97f 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -6,6 +6,7 @@
 #include <linux/sched.h>
 #include <linux/stat.h>
 #include <linux/utime.h>
+#include <linux/syscalls.h>
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
@@ -83,7 +84,7 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags
                 if (error)
                         goto out;
 
-                dentry = nd.dentry;
+                dentry = nd.path.dentry;
         }
 
         inode = dentry->d_inode;
@@ -137,7 +138,7 @@ dput_and_out:
         if (f)
                 fput(f);
         else
-                path_release(&nd);
+                path_put(&nd.path);
 out:
         return error;
 }
diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index c28add2fbe95..cd450bea9f1a 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -705,7 +705,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
         brelse(sinfo.bh);
         if (IS_ERR(inode)) {
                 unlock_kernel();
-                return ERR_PTR(PTR_ERR(inode));
+                return ERR_CAST(inode);
         }
         alias = d_find_alias(inode);
         if (alias) {
diff --git a/fs/xattr.c b/fs/xattr.c
index 6645b7313b33..3acab1615460 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -105,6 +105,33 @@ out:
 EXPORT_SYMBOL_GPL(vfs_setxattr);
 
 ssize_t
+xattr_getsecurity(struct inode *inode, const char *name, void *value,
+                        size_t size)
+{
+        void *buffer = NULL;
+        ssize_t len;
+
+        if (!value || !size) {
+                len = security_inode_getsecurity(inode, name, &buffer, false);
+                goto out_noalloc;
+        }
+
+        len = security_inode_getsecurity(inode, name, &buffer, true);
+        if (len < 0)
+                return len;
+        if (size < len) {
+                len = -ERANGE;
+                goto out;
+        }
+        memcpy(value, buffer, len);
+out:
+        security_release_secctx(buffer, len);
+out_noalloc:
+        return len;
+}
+EXPORT_SYMBOL_GPL(xattr_getsecurity);
+
+ssize_t
 vfs_getxattr(struct dentry *dentry, char *name, void *value, size_t size)
 {
         struct inode *inode = dentry->d_inode;
@@ -118,23 +145,23 @@ vfs_getxattr(struct dentry *dentry, char *name, void *value, size_t size)
         if (error)
                 return error;
 
-        if (inode->i_op->getxattr)
-                error = inode->i_op->getxattr(dentry, name, value, size);
-        else
-                error = -EOPNOTSUPP;
-
         if (!strncmp(name, XATTR_SECURITY_PREFIX,
                                 XATTR_SECURITY_PREFIX_LEN)) {
                 const char *suffix = name + XATTR_SECURITY_PREFIX_LEN;
-                int ret = security_inode_getsecurity(inode, suffix, value,
-                                                     size, error);
+                int ret = xattr_getsecurity(inode, suffix, value, size);
                 /*
                  * Only overwrite the return value if a security module
                  * is actually active.
                  */
-                if (ret != -EOPNOTSUPP)
-                        error = ret;
+                if (ret == -EOPNOTSUPP)
+                        goto nolsm;
+                return ret;
         }
+nolsm:
+        if (inode->i_op->getxattr)
+                error = inode->i_op->getxattr(dentry, name, value, size);
+        else
+                error = -EOPNOTSUPP;
 
         return error;
 }
@@ -235,8 +262,8 @@ sys_setxattr(char __user *path, char __user *name, void __user *value,
         error = user_path_walk(path, &nd);
         if (error)
                 return error;
-        error = setxattr(nd.dentry, name, value, size, flags);
-        path_release(&nd);
+        error = setxattr(nd.path.dentry, name, value, size, flags);
+        path_put(&nd.path);
         return error;
 }
 
@@ -250,8 +277,8 @@ sys_lsetxattr(char __user *path, char __user *name, void __user *value,
         error = user_path_walk_link(path, &nd);
         if (error)
                 return error;
-        error = setxattr(nd.dentry, name, value, size, flags);
-        path_release(&nd);
+        error = setxattr(nd.path.dentry, name, value, size, flags);
+        path_put(&nd.path);
         return error;
 }
 
@@ -320,8 +347,8 @@ sys_getxattr(char __user *path, char __user *name, void __user *value,
         error = user_path_walk(path, &nd);
         if (error)
                 return error;
-        error = getxattr(nd.dentry, name, value, size);
-        path_release(&nd);
+        error = getxattr(nd.path.dentry, name, value, size);
+        path_put(&nd.path);
         return error;
 }
 
@@ -335,8 +362,8 @@ sys_lgetxattr(char __user *path, char __user *name, void __user *value,
         error = user_path_walk_link(path, &nd);
         if (error)
                 return error;
-        error = getxattr(nd.dentry, name, value, size);
-        path_release(&nd);
+        error = getxattr(nd.path.dentry, name, value, size);
+        path_put(&nd.path);
         return error;
 }
 
@@ -394,8 +421,8 @@ sys_listxattr(char __user *path, char __user *list, size_t size)
         error = user_path_walk(path, &nd);
         if (error)
                 return error;
-        error = listxattr(nd.dentry, list, size);
-        path_release(&nd);
+        error = listxattr(nd.path.dentry, list, size);
+        path_put(&nd.path);
         return error;
 }
 
@@ -408,8 +435,8 @@ sys_llistxattr(char __user *path, char __user *list, size_t size)
         error = user_path_walk_link(path, &nd);
         if (error)
                 return error;
-        error = listxattr(nd.dentry, list, size);
-        path_release(&nd);
+        error = listxattr(nd.path.dentry, list, size);
+        path_put(&nd.path);
         return error;
 }
 
@@ -455,8 +482,8 @@ sys_removexattr(char __user *path, char __user *name)
         error = user_path_walk(path, &nd);
         if (error)
                 return error;
-        error = removexattr(nd.dentry, name);
-        path_release(&nd);
+        error = removexattr(nd.path.dentry, name);
+        path_put(&nd.path);
         return error;
 }
 
@@ -469,8 +496,8 @@ sys_lremovexattr(char __user *path, char __user *name)
         error = user_path_walk_link(path, &nd);
         if (error)
                 return error;
-        error = removexattr(nd.dentry, name);
-        path_release(&nd);
+        error = removexattr(nd.path.dentry, name);
+        path_put(&nd.path);
         return error;
 }
 
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index ed2b16dff914..e040f1ce1b6a 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -92,8 +92,7 @@ kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize,
 void
 kmem_free(void *ptr, size_t size)
 {
-        if (((unsigned long)ptr < VMALLOC_START) ||
-            ((unsigned long)ptr >= VMALLOC_END)) {
+        if (!is_vmalloc_addr(ptr)) {
                 kfree(ptr);
         } else {
                 vfree(ptr);
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 302273f8e2a9..e347bfd47c91 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -700,8 +700,7 @@ static inline struct page *
 mem_to_page(
         void                    *addr)
 {
-        if (((unsigned long)addr < VMALLOC_START) ||
-            ((unsigned long)addr >= VMALLOC_END)) {
+        if ((!is_vmalloc_addr(addr))) {
                 return virt_to_page(addr);
         } else {
                 return vmalloc_to_page(addr);
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 4c82a050a3a8..a9952e490ac9 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -91,10 +91,10 @@ xfs_find_handle(
                 if (error)
                         return error;
 
-                ASSERT(nd.dentry);
-                ASSERT(nd.dentry->d_inode);
-                inode = igrab(nd.dentry->d_inode);
-                path_release(&nd);
+                ASSERT(nd.path.dentry);
+                ASSERT(nd.path.dentry->d_inode);
+                inode = igrab(nd.path.dentry->d_inode);
+                path_put(&nd.path);
                 break;
         }
 
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 6c3a846a5267..166353388490 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -152,7 +152,7 @@ xfs_iozero(
                 if (status)
                         break;
 
-                zero_user_page(page, offset, bytes, KM_USER0);
+                zero_user(page, offset, bytes);
 
                 status = pagecache_write_end(NULL, mapping, pos, bytes, bytes,
                                         page, fsdata);
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 35582fe9d648..1f3da5b8657b 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1648,14 +1648,14 @@ xfs_qm_quotacheck_dqadjust(
          * Adjust the inode count and the block count to reflect this inode's
          * resource usage.
          */
-        be64_add(&dqp->q_core.d_icount, 1);
+        be64_add_cpu(&dqp->q_core.d_icount, 1);
         dqp->q_res_icount++;
         if (nblks) {
-                be64_add(&dqp->q_core.d_bcount, nblks);
+                be64_add_cpu(&dqp->q_core.d_bcount, nblks);
                 dqp->q_res_bcount += nblks;
         }
         if (rtblks) {
-                be64_add(&dqp->q_core.d_rtbcount, rtblks);
+                be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks);
                 dqp->q_res_rtbcount += rtblks;
         }
 
diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
index 7de6874bf1b8..f441f836ca8b 100644
--- a/fs/xfs/quota/xfs_trans_dquot.c
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -421,13 +421,13 @@ xfs_trans_apply_dquot_deltas(
                                        (xfs_qcnt_t) -qtrx->qt_icount_delta);
 #endif
                         if (totalbdelta)
-                                be64_add(&d->d_bcount, (xfs_qcnt_t)totalbdelta);
+                                be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta);
 
                         if (qtrx->qt_icount_delta)
-                                be64_add(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta);
+                                be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta);
 
                         if (totalrtbdelta)
-                                be64_add(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta);
+                                be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta);
 
                         /*
                          * Get any default limits in use.
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index ea6aa60ace06..bdbfbbee4959 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -592,7 +592,7 @@ xfs_alloc_ag_vextent(
                 if (!(args->wasfromfl)) {
 
                         agf = XFS_BUF_TO_AGF(args->agbp);
-                        be32_add(&agf->agf_freeblks, -(args->len));
+                        be32_add_cpu(&agf->agf_freeblks, -(args->len));
                         xfs_trans_agblocks_delta(args->tp,
                                                  -((long)(args->len)));
                         args->pag->pagf_freeblks -= args->len;
@@ -1720,7 +1720,7 @@ xfs_free_ag_extent(
 
                 agf = XFS_BUF_TO_AGF(agbp);
                 pag = &mp->m_perag[agno];
-                be32_add(&agf->agf_freeblks, len);
+                be32_add_cpu(&agf->agf_freeblks, len);
                 xfs_trans_agblocks_delta(tp, len);
                 pag->pagf_freeblks += len;
                 XFS_WANT_CORRUPTED_GOTO(
@@ -2008,18 +2008,18 @@ xfs_alloc_get_freelist(
          * Get the block number and update the data structures.
          */
         bno = be32_to_cpu(agfl->agfl_bno[be32_to_cpu(agf->agf_flfirst)]);
-        be32_add(&agf->agf_flfirst, 1);
+        be32_add_cpu(&agf->agf_flfirst, 1);
         xfs_trans_brelse(tp, agflbp);
         if (be32_to_cpu(agf->agf_flfirst) == XFS_AGFL_SIZE(mp))
                 agf->agf_flfirst = 0;
         pag = &mp->m_perag[be32_to_cpu(agf->agf_seqno)];
-        be32_add(&agf->agf_flcount, -1);
+        be32_add_cpu(&agf->agf_flcount, -1);
         xfs_trans_agflist_delta(tp, -1);
         pag->pagf_flcount--;
 
         logflags = XFS_AGF_FLFIRST | XFS_AGF_FLCOUNT;
         if (btreeblk) {
-                be32_add(&agf->agf_btreeblks, 1);
+                be32_add_cpu(&agf->agf_btreeblks, 1);
                 pag->pagf_btreeblks++;
                 logflags |= XFS_AGF_BTREEBLKS;
         }
@@ -2117,17 +2117,17 @@ xfs_alloc_put_freelist(
                         be32_to_cpu(agf->agf_seqno), &agflbp)))
                 return error;
         agfl = XFS_BUF_TO_AGFL(agflbp);
-        be32_add(&agf->agf_fllast, 1);
+        be32_add_cpu(&agf->agf_fllast, 1);
         if (be32_to_cpu(agf->agf_fllast) == XFS_AGFL_SIZE(mp))
                 agf->agf_fllast = 0;
         pag = &mp->m_perag[be32_to_cpu(agf->agf_seqno)];
-        be32_add(&agf->agf_flcount, 1);
+        be32_add_cpu(&agf->agf_flcount, 1);
         xfs_trans_agflist_delta(tp, 1);
         pag->pagf_flcount++;
 
         logflags = XFS_AGF_FLLAST | XFS_AGF_FLCOUNT;
         if (btreeblk) {
-                be32_add(&agf->agf_btreeblks, -1);
+                be32_add_cpu(&agf->agf_btreeblks, -1);
                 pag->pagf_btreeblks--;
                 logflags |= XFS_AGF_BTREEBLKS;
         }
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index 1603ce595853..3ce2645508ae 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -221,7 +221,7 @@ xfs_alloc_delrec(
                          */
                         bno = be32_to_cpu(agf->agf_roots[cur->bc_btnum]);
                         agf->agf_roots[cur->bc_btnum] = *lpp;
-                        be32_add(&agf->agf_levels[cur->bc_btnum], -1);
+                        be32_add_cpu(&agf->agf_levels[cur->bc_btnum], -1);
                         mp->m_perag[be32_to_cpu(agf->agf_seqno)].pagf_levels[cur->bc_btnum]--;
                         /*
                          * Put this buffer/block on the ag's freelist.
@@ -1256,9 +1256,9 @@ xfs_alloc_lshift(
         /*
          * Bump and log left's numrecs, decrement and log right's numrecs.
          */
-        be16_add(&left->bb_numrecs, 1);
+        be16_add_cpu(&left->bb_numrecs, 1);
         xfs_alloc_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
-        be16_add(&right->bb_numrecs, -1);
+        be16_add_cpu(&right->bb_numrecs, -1);
         xfs_alloc_log_block(cur->bc_tp, rbp, XFS_BB_NUMRECS);
         /*
          * Slide the contents of right down one entry.
@@ -1346,7 +1346,7 @@ xfs_alloc_newroot(
 
                 agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
                 agf->agf_roots[cur->bc_btnum] = cpu_to_be32(nbno);
-                be32_add(&agf->agf_levels[cur->bc_btnum], 1);
+                be32_add_cpu(&agf->agf_levels[cur->bc_btnum], 1);
                 seqno = be32_to_cpu(agf->agf_seqno);
                 mp->m_perag[seqno].pagf_levels[cur->bc_btnum]++;
                 xfs_alloc_log_agf(cur->bc_tp, cur->bc_private.a.agbp,
@@ -1558,9 +1558,9 @@ xfs_alloc_rshift(
         /*
          * Decrement and log left's numrecs, bump and log right's numrecs.
          */
-        be16_add(&left->bb_numrecs, -1);
+        be16_add_cpu(&left->bb_numrecs, -1);
         xfs_alloc_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
-        be16_add(&right->bb_numrecs, 1);
+        be16_add_cpu(&right->bb_numrecs, 1);
         xfs_alloc_log_block(cur->bc_tp, rbp, XFS_BB_NUMRECS);
         /*
          * Using a temporary cursor, update the parent key values of the
@@ -1643,7 +1643,7 @@ xfs_alloc_split(
          */
         if ((be16_to_cpu(left->bb_numrecs) & 1) &&
             cur->bc_ptrs[level] <= be16_to_cpu(right->bb_numrecs) + 1)
-                be16_add(&right->bb_numrecs, 1);
+                be16_add_cpu(&right->bb_numrecs, 1);
         i = be16_to_cpu(left->bb_numrecs) - be16_to_cpu(right->bb_numrecs) + 1;
         /*
          * For non-leaf blocks, copy keys and addresses over to the new block.
@@ -1689,7 +1689,7 @@ xfs_alloc_split(
          * Adjust numrecs, sibling pointers.
          */
         lbno = XFS_DADDR_TO_AGBNO(cur->bc_mp, XFS_BUF_ADDR(lbp));
-        be16_add(&left->bb_numrecs, -(be16_to_cpu(right->bb_numrecs)));
+        be16_add_cpu(&left->bb_numrecs, -(be16_to_cpu(right->bb_numrecs)));
         right->bb_rightsib = left->bb_rightsib;
         left->bb_rightsib = cpu_to_be32(rbno);
         right->bb_leftsib = cpu_to_be32(lbno);
diff --git a/fs/xfs/xfs_arch.h b/fs/xfs/xfs_arch.h
index c4836890b726..f9472a2076d4 100644
--- a/fs/xfs/xfs_arch.h
+++ b/fs/xfs/xfs_arch.h
@@ -170,21 +170,6 @@
     } \
 }
 
-static inline void be16_add(__be16 *a, __s16 b)
-{
-        *a = cpu_to_be16(be16_to_cpu(*a) + b);
-}
-
-static inline void be32_add(__be32 *a, __s32 b)
-{
-        *a = cpu_to_be32(be32_to_cpu(*a) + b);
-}
-
-static inline void be64_add(__be64 *a, __s64 b)
-{
-        *a = cpu_to_be64(be64_to_cpu(*a) + b);
-}
-
 /*
  * In directories inode numbers are stored as unaligned arrays of unsigned
  * 8bit integers on disk.
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index eb3815ebb7aa..b08e2a2a8add 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -317,7 +317,7 @@ xfs_attr_shortform_add(xfs_da_args_t *args, int forkoff)
         memcpy(sfe->nameval, args->name, args->namelen);
         memcpy(&sfe->nameval[args->namelen], args->value, args->valuelen);
         sf->hdr.count++;
-        be16_add(&sf->hdr.totsize, size);
+        be16_add_cpu(&sf->hdr.totsize, size);
         xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_ADATA);
 
         xfs_sbversion_add_attr2(mp, args->trans);
@@ -363,7 +363,7 @@ xfs_attr_shortform_remove(xfs_da_args_t *args)
         if (end != totsize)
                 memmove(&((char *)sf)[base], &((char *)sf)[end], totsize - end);
         sf->hdr.count--;
-        be16_add(&sf->hdr.totsize, -size);
+        be16_add_cpu(&sf->hdr.totsize, -size);
 
         /*
          * Fix up the start offset of the attribute fork
@@ -1133,7 +1133,7 @@ xfs_attr_leaf_add_work(xfs_dabuf_t *bp, xfs_da_args_t *args, int mapindex)
                 xfs_da_log_buf(args->trans, bp,
                     XFS_DA_LOGRANGE(leaf, entry, tmp + sizeof(*entry)));
         }
-        be16_add(&hdr->count, 1);
+        be16_add_cpu(&hdr->count, 1);
 
         /*
          * Allocate space for the new string (at the end of the run).
@@ -1147,7 +1147,7 @@ xfs_attr_leaf_add_work(xfs_dabuf_t *bp, xfs_da_args_t *args, int mapindex)
                                          mp->m_sb.sb_blocksize, NULL));
         ASSERT(be16_to_cpu(map->size) < XFS_LBSIZE(mp));
         ASSERT((be16_to_cpu(map->size) & 0x3) == 0);
-        be16_add(&map->size,
+        be16_add_cpu(&map->size,
                 -xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
                                           mp->m_sb.sb_blocksize, &tmp));
         entry->nameidx = cpu_to_be16(be16_to_cpu(map->base) +
@@ -1214,12 +1214,12 @@ xfs_attr_leaf_add_work(xfs_dabuf_t *bp, xfs_da_args_t *args, int mapindex)
         map = &hdr->freemap[0];
         for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; map++, i++) {
                 if (be16_to_cpu(map->base) == tmp) {
-                        be16_add(&map->base, sizeof(xfs_attr_leaf_entry_t));
-                        be16_add(&map->size,
+                        be16_add_cpu(&map->base, sizeof(xfs_attr_leaf_entry_t));
+                        be16_add_cpu(&map->size,
                                  -((int)sizeof(xfs_attr_leaf_entry_t)));
                 }
         }
-        be16_add(&hdr->usedbytes, xfs_attr_leaf_entsize(leaf, args->index));
+        be16_add_cpu(&hdr->usedbytes, xfs_attr_leaf_entsize(leaf, args->index));
         xfs_da_log_buf(args->trans, bp,
                 XFS_DA_LOGRANGE(leaf, hdr, sizeof(*hdr)));
         return(0);
@@ -1727,9 +1727,9 @@ xfs_attr_leaf_remove(xfs_dabuf_t *bp, xfs_da_args_t *args)
                 ASSERT(be16_to_cpu(map->base) < XFS_LBSIZE(mp));
                 ASSERT(be16_to_cpu(map->size) < XFS_LBSIZE(mp));
                 if (be16_to_cpu(map->base) == tablesize) {
-                        be16_add(&map->base,
+                        be16_add_cpu(&map->base,
                                  -((int)sizeof(xfs_attr_leaf_entry_t)));
-                        be16_add(&map->size, sizeof(xfs_attr_leaf_entry_t));
+                        be16_add_cpu(&map->size, sizeof(xfs_attr_leaf_entry_t));
                 }
 
                 if ((be16_to_cpu(map->base) + be16_to_cpu(map->size))
@@ -1751,19 +1751,19 @@ xfs_attr_leaf_remove(xfs_dabuf_t *bp, xfs_da_args_t *args)
         if ((before >= 0) || (after >= 0)) {
                 if ((before >= 0) && (after >= 0)) {
                         map = &hdr->freemap[before];
-                        be16_add(&map->size, entsize);
-                        be16_add(&map->size,
+                        be16_add_cpu(&map->size, entsize);
+                        be16_add_cpu(&map->size,
                                  be16_to_cpu(hdr->freemap[after].size));
                         hdr->freemap[after].base = 0;
                         hdr->freemap[after].size = 0;
                 } else if (before >= 0) {
                         map = &hdr->freemap[before];
-                        be16_add(&map->size, entsize);
+                        be16_add_cpu(&map->size, entsize);
                 } else {
                         map = &hdr->freemap[after];
                         /* both on-disk, don't endian flip twice */
                         map->base = entry->nameidx;
-                        be16_add(&map->size, entsize);
+                        be16_add_cpu(&map->size, entsize);
                 }
         } else {
                 /*
@@ -1788,7 +1788,7 @@ xfs_attr_leaf_remove(xfs_dabuf_t *bp, xfs_da_args_t *args)
          * Compress the remaining entries and zero out the removed stuff.
          */
         memset(XFS_ATTR_LEAF_NAME(leaf, args->index), 0, entsize);
-        be16_add(&hdr->usedbytes, -entsize);
+        be16_add_cpu(&hdr->usedbytes, -entsize);
         xfs_da_log_buf(args->trans, bp,
              XFS_DA_LOGRANGE(leaf, XFS_ATTR_LEAF_NAME(leaf, args->index),
                                    entsize));
@@ -1796,7 +1796,7 @@ xfs_attr_leaf_remove(xfs_dabuf_t *bp, xfs_da_args_t *args)
         tmp = (be16_to_cpu(hdr->count) - args->index)
                                         * sizeof(xfs_attr_leaf_entry_t);
         memmove((char *)entry, (char *)(entry+1), tmp);
-        be16_add(&hdr->count, -1);
+        be16_add_cpu(&hdr->count, -1);
         xfs_da_log_buf(args->trans, bp,
             XFS_DA_LOGRANGE(leaf, entry, tmp + sizeof(*entry)));
         entry = &leaf->entries[be16_to_cpu(hdr->count)];
@@ -2182,15 +2182,15 @@ xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
                  */
                 if (entry_s->flags & XFS_ATTR_INCOMPLETE) { /* skip partials? */
                         memset(XFS_ATTR_LEAF_NAME(leaf_s, start_s + i), 0, tmp);
-                        be16_add(&hdr_s->usedbytes, -tmp);
-                        be16_add(&hdr_s->count, -1);
+                        be16_add_cpu(&hdr_s->usedbytes, -tmp);
+                        be16_add_cpu(&hdr_s->count, -1);
                         entry_d--;      /* to compensate for ++ in loop hdr */
                         desti--;
                         if ((start_s + i) < offset)
                                 result++;       /* insertion index adjustment */
                 } else {
 #endif /* GROT */
-                        be16_add(&hdr_d->firstused, -tmp);
+                        be16_add_cpu(&hdr_d->firstused, -tmp);
                         /* both on-disk, don't endian flip twice */
                         entry_d->hashval = entry_s->hashval;
                         /* both on-disk, don't endian flip twice */
@@ -2203,10 +2203,10 @@ xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
                         ASSERT(be16_to_cpu(entry_s->nameidx) + tmp
                                                         <= XFS_LBSIZE(mp));
                         memset(XFS_ATTR_LEAF_NAME(leaf_s, start_s + i), 0, tmp);
-                        be16_add(&hdr_s->usedbytes, -tmp);
-                        be16_add(&hdr_d->usedbytes, tmp);
-                        be16_add(&hdr_s->count, -1);
-                        be16_add(&hdr_d->count, 1);
+                        be16_add_cpu(&hdr_s->usedbytes, -tmp);
+                        be16_add_cpu(&hdr_d->usedbytes, tmp);
+                        be16_add_cpu(&hdr_s->count, -1);
+                        be16_add_cpu(&hdr_d->count, 1);
                         tmp = be16_to_cpu(hdr_d->count)
                                                 * sizeof(xfs_attr_leaf_entry_t)
                                                 + sizeof(xfs_attr_leaf_hdr_t);
@@ -2247,7 +2247,7 @@ xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
          * Fill in the freemap information
          */
         hdr_d->freemap[0].base = cpu_to_be16(sizeof(xfs_attr_leaf_hdr_t));
-        be16_add(&hdr_d->freemap[0].base, be16_to_cpu(hdr_d->count) *
+        be16_add_cpu(&hdr_d->freemap[0].base, be16_to_cpu(hdr_d->count) *
                         sizeof(xfs_attr_leaf_entry_t));
         hdr_d->freemap[0].size = cpu_to_be16(be16_to_cpu(hdr_d->firstused)
                               - be16_to_cpu(hdr_d->freemap[0].base));
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index c4181d85605c..bd18987326a3 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -631,7 +631,7 @@ xfs_bmbt_delrec(
                 memcpy(lrp, rrp, numrrecs * sizeof(*lrp));
                 xfs_bmbt_log_recs(cur, lbp, numlrecs + 1, numlrecs + numrrecs);
         }
-        be16_add(&left->bb_numrecs, numrrecs);
+        be16_add_cpu(&left->bb_numrecs, numrrecs);
         left->bb_rightsib = right->bb_rightsib;
         xfs_bmbt_log_block(cur, lbp, XFS_BB_RIGHTSIB | XFS_BB_NUMRECS);
         if (be64_to_cpu(left->bb_rightsib) != NULLDFSBNO) {
@@ -924,7 +924,7 @@ xfs_bmbt_killroot(
                 xfs_iroot_realloc(ip, i, cur->bc_private.b.whichfork);
                 block = ifp->if_broot;
         }
-        be16_add(&block->bb_numrecs, i);
+        be16_add_cpu(&block->bb_numrecs, i);
         ASSERT(block->bb_numrecs == cblock->bb_numrecs);
         kp = XFS_BMAP_KEY_IADDR(block, 1, cur);
         ckp = XFS_BMAP_KEY_IADDR(cblock, 1, cur);
@@ -947,7 +947,7 @@ xfs_bmbt_killroot(
                         XFS_TRANS_DQ_BCOUNT, -1L);
         xfs_trans_binval(cur->bc_tp, cbp);
         cur->bc_bufs[level - 1] = NULL;
-        be16_add(&block->bb_level, -1);
+        be16_add_cpu(&block->bb_level, -1);
         xfs_trans_log_inode(cur->bc_tp, ip,
                 XFS_ILOG_CORE | XFS_ILOG_FBROOT(cur->bc_private.b.whichfork));
         cur->bc_nlevels--;
@@ -1401,9 +1401,9 @@ xfs_bmbt_rshift(
                 key.br_startoff = cpu_to_be64(xfs_bmbt_disk_get_startoff(rrp));
                 rkp = &key;
         }
-        be16_add(&left->bb_numrecs, -1);
+        be16_add_cpu(&left->bb_numrecs, -1);
         xfs_bmbt_log_block(cur, lbp, XFS_BB_NUMRECS);
-        be16_add(&right->bb_numrecs, 1);
+        be16_add_cpu(&right->bb_numrecs, 1);
 #ifdef DEBUG
         if (level > 0)
                 xfs_btree_check_key(XFS_BTNUM_BMAP, rkp, rkp + 1);
@@ -1535,7 +1535,7 @@ xfs_bmbt_split(
         right->bb_numrecs = cpu_to_be16(be16_to_cpu(left->bb_numrecs) / 2);
         if ((be16_to_cpu(left->bb_numrecs) & 1) &&
             cur->bc_ptrs[level] <= be16_to_cpu(right->bb_numrecs) + 1)
-                be16_add(&right->bb_numrecs, 1);
+                be16_add_cpu(&right->bb_numrecs, 1);
         i = be16_to_cpu(left->bb_numrecs) - be16_to_cpu(right->bb_numrecs) + 1;
         if (level > 0) {
                 lkp = XFS_BMAP_KEY_IADDR(left, i, cur);
@@ -1562,7 +1562,7 @@ xfs_bmbt_split(
                 xfs_bmbt_log_recs(cur, rbp, 1, be16_to_cpu(right->bb_numrecs));
                 *startoff = xfs_bmbt_disk_get_startoff(rrp);
         }
-        be16_add(&left->bb_numrecs, -(be16_to_cpu(right->bb_numrecs)));
+        be16_add_cpu(&left->bb_numrecs, -(be16_to_cpu(right->bb_numrecs)));
         right->bb_rightsib = left->bb_rightsib;
         left->bb_rightsib = cpu_to_be64(args.fsbno);
         right->bb_leftsib = cpu_to_be64(lbno);
@@ -2240,7 +2240,7 @@ xfs_bmbt_newroot(
         bp = xfs_btree_get_bufl(args.mp, cur->bc_tp, args.fsbno, 0);
         cblock = XFS_BUF_TO_BMBT_BLOCK(bp);
         *cblock = *block;
-        be16_add(&block->bb_level, 1);
+        be16_add_cpu(&block->bb_level, 1);
         block->bb_numrecs = cpu_to_be16(1);
         cur->bc_nlevels++;
         cur->bc_ptrs[level + 1] = 1;
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 1b446849fb3d..021a8f7e563f 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -511,12 +511,12 @@ xfs_da_node_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
                  * Move the req'd B-tree elements from high in node1 to
                  * low in node2.
                  */
-                be16_add(&node2->hdr.count, count);
+                be16_add_cpu(&node2->hdr.count, count);
                 tmp = count * (uint)sizeof(xfs_da_node_entry_t);
                 btree_s = &node1->btree[be16_to_cpu(node1->hdr.count) - count];
                 btree_d = &node2->btree[0];
                 memcpy(btree_d, btree_s, tmp);
-                be16_add(&node1->hdr.count, -count);
+                be16_add_cpu(&node1->hdr.count, -count);
         } else {
                 /*
                  * Move the req'd B-tree elements from low in node2 to
@@ -527,7 +527,7 @@ xfs_da_node_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
                 btree_s = &node2->btree[0];
                 btree_d = &node1->btree[be16_to_cpu(node1->hdr.count)];
                 memcpy(btree_d, btree_s, tmp);
-                be16_add(&node1->hdr.count, count);
+                be16_add_cpu(&node1->hdr.count, count);
                 xfs_da_log_buf(tp, blk1->bp,
                         XFS_DA_LOGRANGE(node1, btree_d, tmp));
 
@@ -539,7 +539,7 @@ xfs_da_node_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
                 btree_s = &node2->btree[count];
                 btree_d = &node2->btree[0];
                 memmove(btree_d, btree_s, tmp);
-                be16_add(&node2->hdr.count, -count);
+                be16_add_cpu(&node2->hdr.count, -count);
         }
 
         /*
@@ -604,7 +604,7 @@ xfs_da_node_add(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
         btree->before = cpu_to_be32(newblk->blkno);
         xfs_da_log_buf(state->args->trans, oldblk->bp,
                 XFS_DA_LOGRANGE(node, btree, tmp + sizeof(*btree)));
-        be16_add(&node->hdr.count, 1);
+        be16_add_cpu(&node->hdr.count, 1);
         xfs_da_log_buf(state->args->trans, oldblk->bp,
                 XFS_DA_LOGRANGE(node, &node->hdr, sizeof(node->hdr)));
 
@@ -959,7 +959,7 @@ xfs_da_node_remove(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk)
         memset((char *)btree, 0, sizeof(xfs_da_node_entry_t));
         xfs_da_log_buf(state->args->trans, drop_blk->bp,
             XFS_DA_LOGRANGE(node, btree, sizeof(*btree)));
-        be16_add(&node->hdr.count, -1);
+        be16_add_cpu(&node->hdr.count, -1);
         xfs_da_log_buf(state->args->trans, drop_blk->bp,
             XFS_DA_LOGRANGE(node, &node->hdr, sizeof(node->hdr)));
 
@@ -1018,7 +1018,7 @@ xfs_da_node_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
          */
         tmp = be16_to_cpu(drop_node->hdr.count) * (uint)sizeof(xfs_da_node_entry_t);
         memcpy(btree, &drop_node->btree[0], tmp);
-        be16_add(&save_node->hdr.count, be16_to_cpu(drop_node->hdr.count));
+        be16_add_cpu(&save_node->hdr.count, be16_to_cpu(drop_node->hdr.count));
 
         xfs_da_log_buf(tp, save_blk->bp,
                 XFS_DA_LOGRANGE(save_node, &save_node->hdr,
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index a5f4f4fb8868..fb5a556725b3 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -271,7 +271,7 @@ xfs_dir2_block_addname(
                 }
                 lfloglow = toidx + 1 - (be32_to_cpu(btp->stale) - 1);
                 lfloghigh -= be32_to_cpu(btp->stale) - 1;
-                be32_add(&btp->count, -(be32_to_cpu(btp->stale) - 1));
+                be32_add_cpu(&btp->count, -(be32_to_cpu(btp->stale) - 1));
                 xfs_dir2_data_make_free(tp, bp,
                         (xfs_dir2_data_aoff_t)((char *)blp - (char *)block),
                         (xfs_dir2_data_aoff_t)((be32_to_cpu(btp->stale) - 1) * sizeof(*blp)),
@@ -326,7 +326,7 @@ xfs_dir2_block_addname(
                 /*
                  * Update the tail (entry count).
                  */
-                be32_add(&btp->count, 1);
+                be32_add_cpu(&btp->count, 1);
                 /*
                  * If we now need to rebuild the bestfree map, do so.
                  * This needs to happen before the next call to use_free.
@@ -387,7 +387,7 @@ xfs_dir2_block_addname(
                         lfloglow = MIN(mid, lfloglow);
                         lfloghigh = MAX(highstale, lfloghigh);
                 }
-                be32_add(&btp->stale, -1);
+                be32_add_cpu(&btp->stale, -1);
         }
         /*
          * Point to the new data entry.
@@ -767,7 +767,7 @@ xfs_dir2_block_removename(
         /*
          * Fix up the block tail.
          */
-        be32_add(&btp->stale, 1);
+        be32_add_cpu(&btp->stale, 1);
         xfs_dir2_block_log_tail(tp, bp);
         /*
          * Remove the leaf entry by marking it stale.
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index d2452699e9b1..fb8c9e08b23d 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -587,7 +587,7 @@ xfs_dir2_data_make_free(
                 /*
                  * Fix up the new big freespace.
                  */
-                be16_add(&prevdup->length, len + be16_to_cpu(postdup->length));
+                be16_add_cpu(&prevdup->length, len + be16_to_cpu(postdup->length));
                 *xfs_dir2_data_unused_tag_p(prevdup) =
                         cpu_to_be16((char *)prevdup - (char *)d);
                 xfs_dir2_data_log_unused(tp, bp, prevdup);
@@ -621,7 +621,7 @@ xfs_dir2_data_make_free(
          */
         else if (prevdup) {
                 dfp = xfs_dir2_data_freefind(d, prevdup);
-                be16_add(&prevdup->length, len);
+                be16_add_cpu(&prevdup->length, len);
                 *xfs_dir2_data_unused_tag_p(prevdup) =
                         cpu_to_be16((char *)prevdup - (char *)d);
                 xfs_dir2_data_log_unused(tp, bp, prevdup);
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 0ca0020ba09f..bc52b803d79b 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -359,7 +359,7 @@ xfs_dir2_leaf_addname(
                         bestsp--;
                         memmove(&bestsp[0], &bestsp[1],
                                 be32_to_cpu(ltp->bestcount) * sizeof(bestsp[0]));
-                        be32_add(&ltp->bestcount, 1);
+                        be32_add_cpu(&ltp->bestcount, 1);
                         xfs_dir2_leaf_log_tail(tp, lbp);
                         xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
                 }
@@ -445,7 +445,7 @@ xfs_dir2_leaf_addname(
                  */
                 lfloglow = index;
                 lfloghigh = be16_to_cpu(leaf->hdr.count);
-                be16_add(&leaf->hdr.count, 1);
+                be16_add_cpu(&leaf->hdr.count, 1);
         }
         /*
          * There are stale entries.
@@ -523,7 +523,7 @@ xfs_dir2_leaf_addname(
                         lfloglow = MIN(index, lfloglow);
                         lfloghigh = MAX(highstale, lfloghigh);
                 }
-                be16_add(&leaf->hdr.stale, -1);
+                be16_add_cpu(&leaf->hdr.stale, -1);
         }
         /*
          * Fill in the new leaf entry.
@@ -626,7 +626,7 @@ xfs_dir2_leaf_compact(
          * Update and log the header, log the leaf entries.
          */
         ASSERT(be16_to_cpu(leaf->hdr.stale) == from - to);
-        be16_add(&leaf->hdr.count, -(be16_to_cpu(leaf->hdr.stale)));
+        be16_add_cpu(&leaf->hdr.count, -(be16_to_cpu(leaf->hdr.stale)));
         leaf->hdr.stale = 0;
         xfs_dir2_leaf_log_header(args->trans, bp);
         if (loglow != -1)
@@ -728,7 +728,7 @@ xfs_dir2_leaf_compact_x1(
         /*
          * Adjust the leaf header values.
          */
-        be16_add(&leaf->hdr.count, -(from - to));
+        be16_add_cpu(&leaf->hdr.count, -(from - to));
         leaf->hdr.stale = cpu_to_be16(1);
         /*
          * Remember the low/high stale value only in the "right"
@@ -1470,7 +1470,7 @@ xfs_dir2_leaf_removename(
         /*
          * We just mark the leaf entry stale by putting a null in it.
          */
-        be16_add(&leaf->hdr.stale, 1);
+        be16_add_cpu(&leaf->hdr.stale, 1);
         xfs_dir2_leaf_log_header(tp, lbp);
         lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
         xfs_dir2_leaf_log_ents(tp, lbp, index, index);
@@ -1531,7 +1531,7 @@ xfs_dir2_leaf_removename(
                          */
                         memmove(&bestsp[db - i], bestsp,
                                 (be32_to_cpu(ltp->bestcount) - (db - i)) * sizeof(*bestsp));
-                        be32_add(&ltp->bestcount, -(db - i));
+                        be32_add_cpu(&ltp->bestcount, -(db - i));
                         xfs_dir2_leaf_log_tail(tp, lbp);
                         xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
                 } else
@@ -1712,7 +1712,7 @@ xfs_dir2_leaf_trim_data(
          * Eliminate the last bests entry from the table.
          */
         bestsp = xfs_dir2_leaf_bests_p(ltp);
-        be32_add(&ltp->bestcount, -1);
+        be32_add_cpu(&ltp->bestcount, -1);
         memmove(&bestsp[1], &bestsp[0], be32_to_cpu(ltp->bestcount) * sizeof(*bestsp));
         xfs_dir2_leaf_log_tail(tp, lbp);
         xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index eb18e399e836..8dade711f099 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -254,7 +254,7 @@ xfs_dir2_leafn_add(
                                 (be16_to_cpu(leaf->hdr.count) - index) * sizeof(*lep));
                 lfloglow = index;
                 lfloghigh = be16_to_cpu(leaf->hdr.count);
-                be16_add(&leaf->hdr.count, 1);
+                be16_add_cpu(&leaf->hdr.count, 1);
         }
         /*
          * There are stale entries.  We'll use one for the new entry.
@@ -322,7 +322,7 @@ xfs_dir2_leafn_add(
                         lfloglow = MIN(index, lfloglow);
                         lfloghigh = MAX(highstale, lfloghigh);
                 }
-                be16_add(&leaf->hdr.stale, -1);
+                be16_add_cpu(&leaf->hdr.stale, -1);
         }
         /*
          * Insert the new entry, log everything.
@@ -697,10 +697,10 @@ xfs_dir2_leafn_moveents(
         /*
          * Update the headers and log them.
          */
-        be16_add(&leaf_s->hdr.count, -(count));
-        be16_add(&leaf_s->hdr.stale, -(stale));
-        be16_add(&leaf_d->hdr.count, count);
-        be16_add(&leaf_d->hdr.stale, stale);
+        be16_add_cpu(&leaf_s->hdr.count, -(count));
+        be16_add_cpu(&leaf_s->hdr.stale, -(stale));
+        be16_add_cpu(&leaf_d->hdr.count, count);
+        be16_add_cpu(&leaf_d->hdr.stale, stale);
         xfs_dir2_leaf_log_header(tp, bp_s);
         xfs_dir2_leaf_log_header(tp, bp_d);
         xfs_dir2_leafn_check(args->dp, bp_s);
@@ -885,7 +885,7 @@ xfs_dir2_leafn_remove(
          * Kill the leaf entry by marking it stale.
          * Log the leaf block changes.
          */
-        be16_add(&leaf->hdr.stale, 1);
+        be16_add_cpu(&leaf->hdr.stale, 1);
         xfs_dir2_leaf_log_header(tp, bp);
         lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
         xfs_dir2_leaf_log_ents(tp, bp, index, index);
@@ -971,7 +971,7 @@ xfs_dir2_leafn_remove(
                         /*
                          * One less used entry in the free table.
                          */
-                        be32_add(&free->hdr.nused, -1);
+                        be32_add_cpu(&free->hdr.nused, -1);
                         xfs_dir2_free_log_header(tp, fbp);
                         /*
                          * If this was the last entry in the table, we can
@@ -1642,7 +1642,7 @@ xfs_dir2_node_addname_int(
                  * (this should always be true) then update the header.
                  */
                 if (be16_to_cpu(free->bests[findex]) == NULLDATAOFF) {
-                        be32_add(&free->hdr.nused, 1);
+                        be32_add_cpu(&free->hdr.nused, 1);
                         xfs_dir2_free_log_header(tp, fbp);
                 }
                 /*
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index b8de7f3cc17e..eadc1591c795 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -318,7 +318,7 @@ xfs_growfs_data_private(
                 }
                 ASSERT(bp);
                 agi = XFS_BUF_TO_AGI(bp);
-                be32_add(&agi->agi_length, new);
+                be32_add_cpu(&agi->agi_length, new);
                 ASSERT(nagcount == oagcount ||
                        be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks);
                 xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH);
@@ -331,7 +331,7 @@ xfs_growfs_data_private(
                 }
                 ASSERT(bp);
                 agf = XFS_BUF_TO_AGF(bp);
-                be32_add(&agf->agf_length, new);
+                be32_add_cpu(&agf->agf_length, new);
                 ASSERT(be32_to_cpu(agf->agf_length) ==
                        be32_to_cpu(agi->agi_length));
                 xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH);
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 1409c2d61c11..c5836b951d0c 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -301,8 +301,8 @@ xfs_ialloc_ag_alloc(
                 }
                 xfs_trans_inode_alloc_buf(tp, fbuf);
         }
-        be32_add(&agi->agi_count, newlen);
-        be32_add(&agi->agi_freecount, newlen);
+        be32_add_cpu(&agi->agi_count, newlen);
+        be32_add_cpu(&agi->agi_freecount, newlen);
         agno = be32_to_cpu(agi->agi_seqno);
         down_read(&args.mp->m_peraglock);
         args.mp->m_perag[agno].pagi_freecount += newlen;
@@ -885,7 +885,7 @@ nextag:
         if ((error = xfs_inobt_update(cur, rec.ir_startino, rec.ir_freecount,
                         rec.ir_free)))
                 goto error0;
-        be32_add(&agi->agi_freecount, -1);
+        be32_add_cpu(&agi->agi_freecount, -1);
         xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT);
         down_read(&mp->m_peraglock);
         mp->m_perag[tagno].pagi_freecount--;
@@ -1065,8 +1065,8 @@ xfs_difree(
                  * to be freed when the transaction is committed.
                  */
                 ilen = XFS_IALLOC_INODES(mp);
-                be32_add(&agi->agi_count, -ilen);
-                be32_add(&agi->agi_freecount, -(ilen - 1));
+                be32_add_cpu(&agi->agi_count, -ilen);
+                be32_add_cpu(&agi->agi_freecount, -(ilen - 1));
                 xfs_ialloc_log_agi(tp, agbp, XFS_AGI_COUNT | XFS_AGI_FREECOUNT);
                 down_read(&mp->m_peraglock);
                 mp->m_perag[agno].pagi_freecount -= ilen - 1;
@@ -1095,7 +1095,7 @@ xfs_difree(
                 /* 
                  * Change the inode free counts and log the ag/sb changes.
                  */
-                be32_add(&agi->agi_freecount, 1);
+                be32_add_cpu(&agi->agi_freecount, 1);
                 xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT);
                 down_read(&mp->m_peraglock);
                 mp->m_perag[agno].pagi_freecount++;
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index 8cdeeaf8632b..e5310c90e50f 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -189,7 +189,7 @@ xfs_inobt_delrec(
                          */
                         bno = be32_to_cpu(agi->agi_root);
                         agi->agi_root = *pp;
-                        be32_add(&agi->agi_level, -1);
+                        be32_add_cpu(&agi->agi_level, -1);
                         /*
                          * Free the block.
                          */
@@ -1132,7 +1132,7 @@ xfs_inobt_lshift(
         /*
          * Bump and log left's numrecs, decrement and log right's numrecs.
          */
-        be16_add(&left->bb_numrecs, 1);
+        be16_add_cpu(&left->bb_numrecs, 1);
         xfs_inobt_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
 #ifdef DEBUG
         if (level > 0)
@@ -1140,7 +1140,7 @@ xfs_inobt_lshift(
         else
                 xfs_btree_check_rec(cur->bc_btnum, lrp - 1, lrp);
 #endif
-        be16_add(&right->bb_numrecs, -1);
+        be16_add_cpu(&right->bb_numrecs, -1);
         xfs_inobt_log_block(cur->bc_tp, rbp, XFS_BB_NUMRECS);
         /*
          * Slide the contents of right down one entry.
@@ -1232,7 +1232,7 @@ xfs_inobt_newroot(
          * Set the root data in the a.g. inode structure.
          */
         agi->agi_root = cpu_to_be32(args.agbno);
-        be32_add(&agi->agi_level, 1);
+        be32_add_cpu(&agi->agi_level, 1);
         xfs_ialloc_log_agi(args.tp, cur->bc_private.i.agbp,
                 XFS_AGI_ROOT | XFS_AGI_LEVEL);
         /*
@@ -1426,9 +1426,9 @@ xfs_inobt_rshift(
         /*
          * Decrement and log left's numrecs, bump and log right's numrecs.
          */
-        be16_add(&left->bb_numrecs, -1);
+        be16_add_cpu(&left->bb_numrecs, -1);
         xfs_inobt_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
-        be16_add(&right->bb_numrecs, 1);
+        be16_add_cpu(&right->bb_numrecs, 1);
 #ifdef DEBUG
         if (level > 0)
                 xfs_btree_check_key(cur->bc_btnum, rkp, rkp + 1);
@@ -1529,7 +1529,7 @@ xfs_inobt_split(
          */
         if ((be16_to_cpu(left->bb_numrecs) & 1) &&
             cur->bc_ptrs[level] <= be16_to_cpu(right->bb_numrecs) + 1)
-                be16_add(&right->bb_numrecs, 1);
+                be16_add_cpu(&right->bb_numrecs, 1);
         i = be16_to_cpu(left->bb_numrecs) - be16_to_cpu(right->bb_numrecs) + 1;
         /*
          * For non-leaf blocks, copy keys and addresses over to the new block.
@@ -1565,7 +1565,7 @@ xfs_inobt_split(
          * Find the left block number by looking in the buffer.
          * Adjust numrecs, sibling pointers.
          */
-        be16_add(&left->bb_numrecs, -(be16_to_cpu(right->bb_numrecs)));
+        be16_add_cpu(&left->bb_numrecs, -(be16_to_cpu(right->bb_numrecs)));
         right->bb_rightsib = left->bb_rightsib;
         left->bb_rightsib = cpu_to_be32(args.agbno);
         right->bb_leftsib = cpu_to_be32(lbno);
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index b3ac3805d3c4..a75edca1860f 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1509,9 +1509,9 @@ xlog_sync(xlog_t		*log,
                  * case, though.
                  */
                 for (i = 0; i < split; i += BBSIZE) {
-                        be32_add((__be32 *)dptr, 1);
+                        be32_add_cpu((__be32 *)dptr, 1);
                         if (be32_to_cpu(*(__be32 *)dptr) == XLOG_HEADER_MAGIC_NUM)
-                                be32_add((__be32 *)dptr, 1);
+                                be32_add_cpu((__be32 *)dptr, 1);
                         dptr += BBSIZE;
                 }
 
@@ -1600,7 +1600,7 @@ xlog_state_finish_copy(xlog_t		*log,
 {
         spin_lock(&log->l_icloglock);
 
-        be32_add(&iclog->ic_header.h_num_logops, record_cnt);
+        be32_add_cpu(&iclog->ic_header.h_num_logops, record_cnt);
         iclog->ic_offset += copy_bytes;
 
         spin_unlock(&log->l_icloglock);
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 71e4c8dcc69b..140386434aa3 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -567,26 +567,26 @@ xfs_trans_apply_sb_deltas(
          */
         if (!xfs_sb_version_haslazysbcount(&(tp->t_mountp->m_sb))) {
                 if (tp->t_icount_delta)
-                        be64_add(&sbp->sb_icount, tp->t_icount_delta);
+                        be64_add_cpu(&sbp->sb_icount, tp->t_icount_delta);
                 if (tp->t_ifree_delta)
-                        be64_add(&sbp->sb_ifree, tp->t_ifree_delta);
+                        be64_add_cpu(&sbp->sb_ifree, tp->t_ifree_delta);
                 if (tp->t_fdblocks_delta)
-                        be64_add(&sbp->sb_fdblocks, tp->t_fdblocks_delta);
+                        be64_add_cpu(&sbp->sb_fdblocks, tp->t_fdblocks_delta);
                 if (tp->t_res_fdblocks_delta)
-                        be64_add(&sbp->sb_fdblocks, tp->t_res_fdblocks_delta);
+                        be64_add_cpu(&sbp->sb_fdblocks, tp->t_res_fdblocks_delta);
         }
 
         if (tp->t_frextents_delta)
-                be64_add(&sbp->sb_frextents, tp->t_frextents_delta);
+                be64_add_cpu(&sbp->sb_frextents, tp->t_frextents_delta);
         if (tp->t_res_frextents_delta)
-                be64_add(&sbp->sb_frextents, tp->t_res_frextents_delta);
+                be64_add_cpu(&sbp->sb_frextents, tp->t_res_frextents_delta);
 
         if (tp->t_dblocks_delta) {
-                be64_add(&sbp->sb_dblocks, tp->t_dblocks_delta);
+                be64_add_cpu(&sbp->sb_dblocks, tp->t_dblocks_delta);
                 whole = 1;
         }
         if (tp->t_agcount_delta) {
-                be32_add(&sbp->sb_agcount, tp->t_agcount_delta);
+                be32_add_cpu(&sbp->sb_agcount, tp->t_agcount_delta);
                 whole = 1;
         }
         if (tp->t_imaxpct_delta) {
@@ -594,19 +594,19 @@ xfs_trans_apply_sb_deltas(
                 whole = 1;
         }
         if (tp->t_rextsize_delta) {
-                be32_add(&sbp->sb_rextsize, tp->t_rextsize_delta);
+                be32_add_cpu(&sbp->sb_rextsize, tp->t_rextsize_delta);
                 whole = 1;
         }
         if (tp->t_rbmblocks_delta) {
-                be32_add(&sbp->sb_rbmblocks, tp->t_rbmblocks_delta);
+                be32_add_cpu(&sbp->sb_rbmblocks, tp->t_rbmblocks_delta);
                 whole = 1;
         }
         if (tp->t_rblocks_delta) {
-                be64_add(&sbp->sb_rblocks, tp->t_rblocks_delta);
+                be64_add_cpu(&sbp->sb_rblocks, tp->t_rblocks_delta);
                 whole = 1;
         }
         if (tp->t_rextents_delta) {
-                be64_add(&sbp->sb_rextents, tp->t_rextents_delta);
+                be64_add_cpu(&sbp->sb_rextents, tp->t_rextents_delta);
                 whole = 1;
         }
         if (tp->t_rextslog_delta) {