Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits)
  reiserfs: Properly display mount options in /proc/mounts
  vfs: prevent remount read-only if pending removes
  vfs: count unlinked inodes
  vfs: protect remounting superblock read-only
  vfs: keep list of mounts for each superblock
  vfs: switch ->show_options() to struct dentry *
  vfs: switch ->show_path() to struct dentry *
  vfs: switch ->show_devname() to struct dentry *
  vfs: switch ->show_stats to struct dentry *
  switch security_path_chmod() to struct path *
  vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
  vfs: trim includes a bit
  switch mnt_namespace ->root to struct mount
  vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
  vfs: opencode mntget() mnt_set_mountpoint()
  vfs: spread struct mount - remaining argument of next_mnt()
  vfs: move fsnotify junk to struct mount
  vfs: move mnt_devname
  vfs: move mnt_list to struct mount
  vfs: switch pnode.h macros to struct mount *
  ...

476 files changed, 2588 insertions, 2879 deletions

diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index d819ba16a0c7..4fca82e5276e 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -37,15 +37,15 @@ d_manage:	no		no		yes (ref-walk)	maybe
 
 --------------------------- inode_operations --------------------------- 
 prototypes:
-        int (*create) (struct inode *,struct dentry *,int, struct nameidata *);
+        int (*create) (struct inode *,struct dentry *,umode_t, struct nameidata *);
         struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameid
 ata *);
         int (*link) (struct dentry *,struct inode *,struct dentry *);
         int (*unlink) (struct inode *,struct dentry *);
         int (*symlink) (struct inode *,struct dentry *,const char *);
-        int (*mkdir) (struct inode *,struct dentry *,int);
+        int (*mkdir) (struct inode *,struct dentry *,umode_t);
         int (*rmdir) (struct inode *,struct dentry *);
-        int (*mknod) (struct inode *,struct dentry *,int,dev_t);
+        int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t);
         int (*rename) (struct inode *, struct dentry *,
                         struct inode *, struct dentry *);
         int (*readlink) (struct dentry *, char __user *,int);
@@ -117,7 +117,7 @@ prototypes:
         int (*statfs) (struct dentry *, struct kstatfs *);
         int (*remount_fs) (struct super_block *, int *, char *);
         void (*umount_begin) (struct super_block *);
-        int (*show_options)(struct seq_file *, struct vfsmount *);
+        int (*show_options)(struct seq_file *, struct dentry *);
         ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
         ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
         int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t);
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt
index dd57bb6bb390..b40fec9d3f53 100644
--- a/Documentation/filesystems/configfs/configfs.txt
+++ b/Documentation/filesystems/configfs/configfs.txt
@@ -192,7 +192,7 @@ attribute value uses the store_attribute() method.
         struct configfs_attribute {
                 char                    *ca_name;
                 struct module           *ca_owner;
-                mode_t                  ca_mode;
+                umode_t                  ca_mode;
         };
 
 When a config_item wants an attribute to appear as a file in the item's
diff --git a/Documentation/filesystems/debugfs.txt b/Documentation/filesystems/debugfs.txt
index f04066a37f4c..6872c91bce35 100644
--- a/Documentation/filesystems/debugfs.txt
+++ b/Documentation/filesystems/debugfs.txt
@@ -35,7 +35,7 @@ described below will work.
 
 The most general way to create a file within a debugfs directory is with:
 
-    struct dentry *debugfs_create_file(const char *name, mode_t mode,
+    struct dentry *debugfs_create_file(const char *name, umode_t mode,
                                        struct dentry *parent, void *data,
                                        const struct file_operations *fops);
 
@@ -53,13 +53,13 @@ actually necessary; the debugfs code provides a number of helper functions
 for simple situations.  Files containing a single integer value can be
 created with any of:
 
-    struct dentry *debugfs_create_u8(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u8(const char *name, umode_t mode,
                                      struct dentry *parent, u8 *value);
-    struct dentry *debugfs_create_u16(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u16(const char *name, umode_t mode,
                                       struct dentry *parent, u16 *value);
-    struct dentry *debugfs_create_u32(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u32(const char *name, umode_t mode,
                                       struct dentry *parent, u32 *value);
-    struct dentry *debugfs_create_u64(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u64(const char *name, umode_t mode,
                                       struct dentry *parent, u64 *value);
 
 These files support both reading and writing the given value; if a specific
@@ -67,13 +67,13 @@ file should not be written to, simply set the mode bits accordingly.  The
 values in these files are in decimal; if hexadecimal is more appropriate,
 the following functions can be used instead:
 
-    struct dentry *debugfs_create_x8(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x8(const char *name, umode_t mode,
                                      struct dentry *parent, u8 *value);
-    struct dentry *debugfs_create_x16(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x16(const char *name, umode_t mode,
                                       struct dentry *parent, u16 *value);
-    struct dentry *debugfs_create_x32(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x32(const char *name, umode_t mode,
                                       struct dentry *parent, u32 *value);
-    struct dentry *debugfs_create_x64(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x64(const char *name, umode_t mode,
                                       struct dentry *parent, u64 *value);
 
 These functions are useful as long as the developer knows the size of the
@@ -81,7 +81,7 @@ value to be exported.  Some types can have different widths on different
 architectures, though, complicating the situation somewhat.  There is a
 function meant to help out in one special case:
 
-    struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
+    struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
                                          struct dentry *parent, 
                                          size_t *value);
 
@@ -90,7 +90,7 @@ a variable of type size_t.
 
 Boolean values can be placed in debugfs with:
 
-    struct dentry *debugfs_create_bool(const char *name, mode_t mode,
+    struct dentry *debugfs_create_bool(const char *name, umode_t mode,
                                        struct dentry *parent, u32 *value);
 
 A read on the resulting file will yield either Y (for non-zero values) or
@@ -105,7 +105,7 @@ this structure and function:
         unsigned long size;
     };
 
-    struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+    struct dentry *debugfs_create_blob(const char *name, umode_t mode,
                                        struct dentry *parent,
                                        struct debugfs_blob_wrapper *blob);
 
diff --git a/Documentation/filesystems/sysfs.txt b/Documentation/filesystems/sysfs.txt
index 07235caec22c..a6619b7064b9 100644
--- a/Documentation/filesystems/sysfs.txt
+++ b/Documentation/filesystems/sysfs.txt
@@ -70,7 +70,7 @@ An attribute definition is simply:
 struct attribute {
         char                    * name;
         struct module           *owner;
-        mode_t                  mode;
+        umode_t                 mode;
 };
 
 
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 43cbd0821721..3d9393b845b8 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -225,7 +225,7 @@ struct super_operations {
         void (*clear_inode) (struct inode *);
         void (*umount_begin) (struct super_block *);
 
-        int (*show_options)(struct seq_file *, struct vfsmount *);
+        int (*show_options)(struct seq_file *, struct dentry *);
 
         ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
         ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
@@ -341,14 +341,14 @@ This describes how the VFS can manipulate an inode in your
 filesystem. As of kernel 2.6.22, the following members are defined:
 
 struct inode_operations {
-        int (*create) (struct inode *,struct dentry *,int, struct nameidata *);
+        int (*create) (struct inode *,struct dentry *, umode_t, struct nameidata *);
         struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *);
         int (*link) (struct dentry *,struct inode *,struct dentry *);
         int (*unlink) (struct inode *,struct dentry *);
         int (*symlink) (struct inode *,struct dentry *,const char *);
-        int (*mkdir) (struct inode *,struct dentry *,int);
+        int (*mkdir) (struct inode *,struct dentry *,umode_t);
         int (*rmdir) (struct inode *,struct dentry *);
-        int (*mknod) (struct inode *,struct dentry *,int,dev_t);
+        int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t);
         int (*rename) (struct inode *, struct dentry *,
                         struct inode *, struct dentry *);
         int (*readlink) (struct dentry *, char __user *,int);
diff --git a/arch/alpha/include/asm/ipcbuf.h b/arch/alpha/include/asm/ipcbuf.h
index d9c0e1a50702..84c7e51cb6d0 100644
--- a/arch/alpha/include/asm/ipcbuf.h
+++ b/arch/alpha/include/asm/ipcbuf.h
@@ -1,28 +1 @@
-#ifndef _ALPHA_IPCBUF_H
-#define _ALPHA_IPCBUF_H
-
-/* 
- * The ipc64_perm structure for alpha architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit seq
- * - 2 miscellaneous 64-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t  key;
-        __kernel_uid_t  uid;
-        __kernel_gid_t  gid;
-        __kernel_uid_t  cuid;
-        __kernel_gid_t  cgid;
-        __kernel_mode_t mode; 
-        unsigned short  seq;
-        unsigned short  __pad1;
-        unsigned long   __unused1;
-        unsigned long   __unused2;
-};
-
-#endif /* _ALPHA_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h
index 881544339c21..0a0579076f4a 100644
--- a/arch/alpha/include/asm/types.h
+++ b/arch/alpha/include/asm/types.h
@@ -15,9 +15,4 @@
 #include <asm-generic/int-l64.h>
 #endif
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned int umode_t;
-
-#endif /* __ASSEMBLY__ */
 #endif /* _ALPHA_TYPES_H */
diff --git a/arch/arm/include/asm/ipcbuf.h b/arch/arm/include/asm/ipcbuf.h
index 97683975f7df..84c7e51cb6d0 100644
--- a/arch/arm/include/asm/ipcbuf.h
+++ b/arch/arm/include/asm/ipcbuf.h
@@ -1,29 +1 @@
-#ifndef __ASMARM_IPCBUF_H
-#define __ASMARM_IPCBUF_H
-
-/*
- * The ipc64_perm structure for arm architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* __ASMARM_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h
index 48192ac3a23a..28beab917ffc 100644
--- a/arch/arm/include/asm/types.h
+++ b/arch/arm/include/asm/types.h
@@ -3,12 +3,6 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/arm/mach-msm/smd_debug.c b/arch/arm/mach-msm/smd_debug.c
index 8736afff82f3..0c56a5aaf588 100644
--- a/arch/arm/mach-msm/smd_debug.c
+++ b/arch/arm/mach-msm/smd_debug.c
@@ -215,7 +215,7 @@ static const struct file_operations debug_ops = {
         .llseek = default_llseek,
 };
 
-static void debug_create(const char *name, mode_t mode,
+static void debug_create(const char *name, umode_t mode,
                          struct dentry *dent,
                          int (*fill)(char *buf, int max))
 {
diff --git a/arch/avr32/include/asm/ipcbuf.h b/arch/avr32/include/asm/ipcbuf.h
index 1552c9698f5e..84c7e51cb6d0 100644
--- a/arch/avr32/include/asm/ipcbuf.h
+++ b/arch/avr32/include/asm/ipcbuf.h
@@ -1,29 +1 @@
-#ifndef __ASM_AVR32_IPCBUF_H
-#define __ASM_AVR32_IPCBUF_H
-
-/*
-* The user_ipc_perm structure for AVR32 architecture.
-* Note extra padding because this structure is passed back and forth
-* between kernel and user space.
-*
-* Pad space is left for:
-* - 32-bit mode_t and seq
-* - 2 miscellaneous 32-bit values
-*/
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* __ASM_AVR32_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/avr32/include/asm/types.h b/arch/avr32/include/asm/types.h
index 72667a3b1af7..9bb2d8b2e6ca 100644
--- a/arch/avr32/include/asm/types.h
+++ b/arch/avr32/include/asm/types.h
@@ -10,12 +10,6 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/cris/include/asm/ipcbuf.h b/arch/cris/include/asm/ipcbuf.h
index 8b0c18b02844..84c7e51cb6d0 100644
--- a/arch/cris/include/asm/ipcbuf.h
+++ b/arch/cris/include/asm/ipcbuf.h
@@ -1,29 +1 @@
-#ifndef __CRIS_IPCBUF_H__
-#define __CRIS_IPCBUF_H__
-
-/*
- * The user_ipc_perm structure for CRIS architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* __CRIS_IPCBUF_H__ */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/cris/include/asm/types.h b/arch/cris/include/asm/types.h
index 551a12c0aa01..adaf82780bb4 100644
--- a/arch/cris/include/asm/types.h
+++ b/arch/cris/include/asm/types.h
@@ -3,12 +3,6 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/frv/include/asm/ipcbuf.h b/arch/frv/include/asm/ipcbuf.h
index b546f67e455f..84c7e51cb6d0 100644
--- a/arch/frv/include/asm/ipcbuf.h
+++ b/arch/frv/include/asm/ipcbuf.h
@@ -1,30 +1 @@
-#ifndef __ASM_IPCBUF_H__
-#define __ASM_IPCBUF_H__
-
-/*
- * The user_ipc_perm structure for FR-V architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* __ASM_IPCBUF_H__ */
-
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/frv/include/asm/types.h b/arch/frv/include/asm/types.h
index aa3e7fdc7f29..390a612f3a58 100644
--- a/arch/frv/include/asm/types.h
+++ b/arch/frv/include/asm/types.h
@@ -14,12 +14,6 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/h8300/include/asm/ipcbuf.h b/arch/h8300/include/asm/ipcbuf.h
index 2cd1ebcc109d..84c7e51cb6d0 100644
--- a/arch/h8300/include/asm/ipcbuf.h
+++ b/arch/h8300/include/asm/ipcbuf.h
@@ -1,29 +1 @@
-#ifndef __H8300_IPCBUF_H__
-#define __H8300_IPCBUF_H__
-
-/*
- * The user_ipc_perm structure for H8/300 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* __H8300_IPCBUF_H__ */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/h8300/include/asm/types.h b/arch/h8300/include/asm/types.h
index bb2c91a3522e..07257d9487d8 100644
--- a/arch/h8300/include/asm/types.h
+++ b/arch/h8300/include/asm/types.h
@@ -3,27 +3,10 @@
 
 #include <asm-generic/int-ll64.h>
 
-#if !defined(__ASSEMBLY__)
-
-/*
- * This file is never included by application software unless
- * explicitly requested (e.g., via linux/types.h) in which case the
- * application is Linux specific so (user-) name space pollution is
- * not a major issue.  However, for interoperability, libraries still
- * need to be careful to avoid a name clashes.
- */
-
-typedef unsigned short umode_t;
-
-/*
- * These aren't exported outside the kernel to avoid name space clashes
- */
 #ifdef __KERNEL__
 
 #define BITS_PER_LONG 32
 
 #endif /* __KERNEL__ */
 
-#endif /* __ASSEMBLY__ */
-
 #endif /* _H8300_TYPES_H */
diff --git a/arch/ia64/include/asm/ipcbuf.h b/arch/ia64/include/asm/ipcbuf.h
index 079899ae7d32..84c7e51cb6d0 100644
--- a/arch/ia64/include/asm/ipcbuf.h
+++ b/arch/ia64/include/asm/ipcbuf.h
@@ -1,28 +1 @@
-#ifndef _ASM_IA64_IPCBUF_H
-#define _ASM_IA64_IPCBUF_H
-
-/*
- * The ipc64_perm structure for IA-64 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit seq
- * - 2 miscellaneous 64-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t  key;
-        __kernel_uid_t  uid;
-        __kernel_gid_t  gid;
-        __kernel_uid_t  cuid;
-        __kernel_gid_t  cgid;
-        __kernel_mode_t mode;
-        unsigned short  seq;
-        unsigned short  __pad1;
-        unsigned long   __unused1;
-        unsigned long   __unused2;
-};
-
-#endif /* _ASM_IA64_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/ia64/include/asm/types.h b/arch/ia64/include/asm/types.h
index 82b3939d2718..3f5b122d9975 100644
--- a/arch/ia64/include/asm/types.h
+++ b/arch/ia64/include/asm/types.h
@@ -28,8 +28,6 @@
 # define __IA64_UL(x)           ((unsigned long)(x))
 # define __IA64_UL_CONST(x)     x##UL
 
-typedef unsigned int umode_t;
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 89accc626b86..b2c65e034f5d 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2228,7 +2228,7 @@ pfm_alloc_file(pfm_context_t *ctx)
         /*
          * allocate a new dcache entry
          */
-        path.dentry = d_alloc(pfmfs_mnt->mnt_sb->s_root, &this);
+        path.dentry = d_alloc(pfmfs_mnt->mnt_root, &this);
         if (!path.dentry) {
                 iput(inode);
                 return ERR_PTR(-ENOMEM);
diff --git a/arch/m32r/include/asm/ipcbuf.h b/arch/m32r/include/asm/ipcbuf.h
index 8d2d7c8ffdb0..84c7e51cb6d0 100644
--- a/arch/m32r/include/asm/ipcbuf.h
+++ b/arch/m32r/include/asm/ipcbuf.h
@@ -1,29 +1 @@
-#ifndef _ASM_M32R_IPCBUF_H
-#define _ASM_M32R_IPCBUF_H
-
-/*
- * The ipc64_perm structure for m32r architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* _ASM_M32R_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/m32r/include/asm/types.h b/arch/m32r/include/asm/types.h
index bd0035597b3b..bb2eeadecf99 100644
--- a/arch/m32r/include/asm/types.h
+++ b/arch/m32r/include/asm/types.h
@@ -3,12 +3,6 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/m68k/include/asm/ipcbuf.h b/arch/m68k/include/asm/ipcbuf.h
index a623ea3f0955..84c7e51cb6d0 100644
--- a/arch/m68k/include/asm/ipcbuf.h
+++ b/arch/m68k/include/asm/ipcbuf.h
@@ -1,29 +1 @@
-#ifndef __m68k_IPCBUF_H__
-#define __m68k_IPCBUF_H__
-
-/*
- * The user_ipc_perm structure for m68k architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* __m68k_IPCBUF_H__ */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/m68k/include/asm/types.h b/arch/m68k/include/asm/types.h
index b17fd115a4e7..89705adcbd52 100644
--- a/arch/m68k/include/asm/types.h
+++ b/arch/m68k/include/asm/types.h
@@ -10,12 +10,6 @@
  */
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/mips/include/asm/ipcbuf.h b/arch/mips/include/asm/ipcbuf.h
index d47d08f264e7..84c7e51cb6d0 100644
--- a/arch/mips/include/asm/ipcbuf.h
+++ b/arch/mips/include/asm/ipcbuf.h
@@ -1,28 +1 @@
-#ifndef _ASM_IPCBUF_H
-#define _ASM_IPCBUF_H
-
-/*
- * The ipc64_perm structure for alpha architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit seq
- * - 2 miscellaneous 64-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t  key;
-        __kernel_uid_t  uid;
-        __kernel_gid_t  gid;
-        __kernel_uid_t  cuid;
-        __kernel_gid_t  cgid;
-        __kernel_mode_t mode;
-        unsigned short  seq;
-        unsigned short  __pad1;
-        unsigned long   __unused1;
-        unsigned long   __unused2;
-};
-
-#endif /* _ASM_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/mips/include/asm/types.h b/arch/mips/include/asm/types.h
index 533812b61881..43bf70ebd3a2 100644
--- a/arch/mips/include/asm/types.h
+++ b/arch/mips/include/asm/types.h
@@ -21,12 +21,6 @@
 # include <asm-generic/int-ll64.h>
 #endif
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/mn10300/include/asm/ipcbuf.h b/arch/mn10300/include/asm/ipcbuf.h
index f6f63d448272..84c7e51cb6d0 100644
--- a/arch/mn10300/include/asm/ipcbuf.h
+++ b/arch/mn10300/include/asm/ipcbuf.h
@@ -1,29 +1 @@
-#ifndef _ASM_IPCBUF_H
-#define _ASM_IPCBUF_H
-
-/*
- * The ipc64_perm structure for MN10300 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
-        __kernel_key_t          key;
-        __kernel_uid32_t        uid;
-        __kernel_gid32_t        gid;
-        __kernel_uid32_t        cuid;
-        __kernel_gid32_t        cgid;
-        __kernel_mode_t         mode;
-        unsigned short          __pad1;
-        unsigned short          seq;
-        unsigned short          __pad2;
-        unsigned long           __unused1;
-        unsigned long           __unused2;
-};
-
-#endif /* _ASM_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>
diff --git a/arch/mn10300/include/asm/types.h b/arch/mn10300/include/asm/types.h
index c1833eb192e3..713d4ba108a5 100644
--- a/arch/mn10300/include/asm/types.h
+++ b/arch/mn10300/include/asm/types.h
@@ -13,12 +13,6 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index 6ab9580b0b00..d9dc6cd3b7d2 100644
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -136,16 +136,9 @@ struct hpux_ustat {
  */
 static int hpux_ustat(dev_t dev, struct hpux_ustat __user *ubuf)
 {
-        struct super_block *s;
         struct hpux_ustat tmp;  /* Changed to hpux_ustat */
         struct kstatfs sbuf;
-        int err = -EINVAL;
-
-        s = user_get_super(dev);
-        if (s == NULL)
-                goto out;
-        err = statfs_by_dentry(s->s_root, &sbuf);
-        drop_super(s);
+        int err = vfs_ustat(dev, &sbuf);
         if (err)
                 goto out;
 
diff --git a/arch/parisc/include/asm/types.h b/arch/parisc/include/asm/types.h
index 80e415c9936d..8866f9bbdeaf 100644
--- a/arch/parisc/include/asm/types.h
+++ b/arch/parisc/include/asm/types.h
@@ -3,10 +3,4 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 #endif
diff --git a/arch/powerpc/include/asm/spu.h b/arch/powerpc/include/asm/spu.h
index fff921345ddc..93f280e23279 100644
--- a/arch/powerpc/include/asm/spu.h
+++ b/arch/powerpc/include/asm/spu.h
@@ -237,7 +237,7 @@ extern long spu_sys_callback(struct spu_syscall_block *s);
 struct file;
 struct spufs_calls {
         long (*create_thread)(const char __user *name,
-                                        unsigned int flags, mode_t mode,
+                                        unsigned int flags, umode_t mode,
                                         struct file *neighbor);
         long (*spu_run)(struct file *filp, __u32 __user *unpc,
                                                 __u32 __user *ustatus);
diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h
index d82e94e6c2b4..0abf7f2c6df9 100644
--- a/arch/powerpc/include/asm/types.h
+++ b/arch/powerpc/include/asm/types.h
@@ -30,12 +30,6 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#ifdef __powerpc64__
-typedef unsigned int umode_t;
-#else
-typedef unsigned short umode_t;
-#endif
-
 typedef struct {
         __u32 u[4];
 } __attribute__((aligned(16))) __vector128;
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 84daabe2fcba..578f35f18723 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -783,7 +783,7 @@ static const struct file_operations lparcfg_fops = {
 static int __init lparcfg_init(void)
 {
         struct proc_dir_entry *ent;
-        mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
+        umode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
 
         /* Allow writing if we have FW_FEATURE_SPLPAR */
         if (firmware_has_feature(FW_FEATURE_SPLPAR) &&
diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index 75530d99eda6..714bbfc3162c 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -65,8 +65,8 @@ static inline void spufs_calls_put(struct spufs_calls *calls) { }
 
 #endif /* CONFIG_SPU_FS_MODULE */
 
-asmlinkage long sys_spu_create(const char __user *name,
-                unsigned int flags, mode_t mode, int neighbor_fd)
+SYSCALL_DEFINE4(spu_create, const char __user *, name, unsigned int, flags,
+        umode_t, mode, int, neighbor_fd)
 {
         long ret;
         struct file *neighbor;
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index e481f6b9a789..d4a094ca96f3 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -74,7 +74,6 @@ spufs_alloc_inode(struct super_block *sb)
 static void spufs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(spufs_inode_cache, SPUFS_I(inode));
 }
 
@@ -92,7 +91,7 @@ spufs_init_once(void *p)
 }
 
 static struct inode *
-spufs_new_inode(struct super_block *sb, int mode)
+spufs_new_inode(struct super_block *sb, umode_t mode)
 {
         struct inode *inode;
 
@@ -124,7 +123,7 @@ spufs_setattr(struct dentry *dentry, struct iattr *attr)
 
 static int
 spufs_new_file(struct super_block *sb, struct dentry *dentry,
-                const struct file_operations *fops, int mode,
+                const struct file_operations *fops, umode_t mode,
                 size_t size, struct spu_context *ctx)
 {
         static const struct inode_operations spufs_file_iops = {
@@ -194,7 +193,7 @@ static int spufs_rmdir(struct inode *parent, struct dentry *dir)
 }
 
 static int spufs_fill_dir(struct dentry *dir,
-                const struct spufs_tree_descr *files, int mode,
+                const struct spufs_tree_descr *files, umode_t mode,
                 struct spu_context *ctx)
 {
         struct dentry *dentry, *tmp;
@@ -264,7 +263,7 @@ EXPORT_SYMBOL_GPL(spufs_context_fops);
 
 static int
 spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags,
-                int mode)
+                umode_t mode)
 {
         int ret;
         struct inode *inode;
@@ -447,7 +446,7 @@ spufs_set_affinity(unsigned int flags, struct spu_context *ctx,
 
 static int
 spufs_create_context(struct inode *inode, struct dentry *dentry,
-                        struct vfsmount *mnt, int flags, int mode,
+                        struct vfsmount *mnt, int flags, umode_t mode,
                         struct file *aff_filp)
 {
         int ret;
@@ -521,7 +520,7 @@ out:
 }
 
 static int
-spufs_mkgang(struct inode *dir, struct dentry *dentry, int mode)
+spufs_mkgang(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int ret;
         struct inode *inode;
@@ -584,7 +583,7 @@ out:
 
 static int spufs_create_gang(struct inode *inode,
                         struct dentry *dentry,
-                        struct vfsmount *mnt, int mode)
+                        struct vfsmount *mnt, umode_t mode)
 {
         int ret;
 
@@ -612,7 +611,7 @@ out:
 static struct file_system_type spufs_type;
 
 long spufs_create(struct path *path, struct dentry *dentry,
-                unsigned int flags, mode_t mode, struct file *filp)
+                unsigned int flags, umode_t mode, struct file *filp)
 {
         int ret;
 
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 099245f230b2..67852ade4c01 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -237,7 +237,7 @@ struct spufs_inode_info {
 struct spufs_tree_descr {
         const char *name;
         const struct file_operations *ops;
-        int mode;
+        umode_t mode;
         size_t size;
 };
 
@@ -249,7 +249,7 @@ extern const struct spufs_tree_descr spufs_dir_debug_contents[];
 extern struct spufs_calls spufs_calls;
 long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *status);
 long spufs_create(struct path *nd, struct dentry *dentry, unsigned int flags,
-                        mode_t mode, struct file *filp);
+                        umode_t mode, struct file *filp);
 /* ELF coredump callbacks for writing SPU ELF notes */
 extern int spufs_coredump_extra_notes_size(void);
 extern int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset);
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index 71a5b5207266..8591bb62d7fc 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -60,7 +60,7 @@ out:
 }
 
 static long do_spu_create(const char __user *pathname, unsigned int flags,
-                mode_t mode, struct file *neighbor)
+                umode_t mode, struct file *neighbor)
 {
         struct path path;
         struct dentry *dentry;
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index ba4271919062..1c16141c031c 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -25,7 +25,6 @@
 
 #include <linux/bio.h>
 #include <linux/blkdev.h>
-#include <linux/buffer_head.h>
 #include <linux/device.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 481f4f76f664..8a2a887478cc 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -97,7 +97,7 @@ static void hypfs_delete_tree(struct dentry *root)
         }
 }
 
-static struct inode *hypfs_make_inode(struct super_block *sb, int mode)
+static struct inode *hypfs_make_inode(struct super_block *sb, umode_t mode)
 {
         struct inode *ret = new_inode(sb);
 
@@ -107,7 +107,7 @@ static struct inode *hypfs_make_inode(struct super_block *sb, int mode)
                 ret->i_uid = hypfs_info->uid;
                 ret->i_gid = hypfs_info->gid;
                 ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
-                if (mode & S_IFDIR)
+                if (S_ISDIR(mode))
                         set_nlink(ret, 2);
         }
         return ret;
@@ -259,9 +259,9 @@ static int hypfs_parse_options(char *options, struct super_block *sb)
         return 0;
 }
 
-static int hypfs_show_options(struct seq_file *s, struct vfsmount *mnt)
+static int hypfs_show_options(struct seq_file *s, struct dentry *root)
 {
-        struct hypfs_sb_info *hypfs_info = mnt->mnt_sb->s_fs_info;
+        struct hypfs_sb_info *hypfs_info = root->d_sb->s_fs_info;
 
         seq_printf(s, ",uid=%u", hypfs_info->uid);
         seq_printf(s, ",gid=%u", hypfs_info->gid);
@@ -333,7 +333,7 @@ static void hypfs_kill_super(struct super_block *sb)
 
 static struct dentry *hypfs_create_file(struct super_block *sb,
                                         struct dentry *parent, const char *name,
-                                        char *data, mode_t mode)
+                                        char *data, umode_t mode)
 {
         struct dentry *dentry;
         struct inode *inode;
@@ -350,13 +350,13 @@ static struct dentry *hypfs_create_file(struct super_block *sb,
                 dentry = ERR_PTR(-ENOMEM);
                 goto fail;
         }
-        if (mode & S_IFREG) {
+        if (S_ISREG(mode)) {
                 inode->i_fop = &hypfs_file_ops;
                 if (data)
                         inode->i_size = strlen(data);
                 else
                         inode->i_size = 0;
-        } else if (mode & S_IFDIR) {
+        } else if (S_ISDIR(mode)) {
                 inode->i_op = &simple_dir_inode_operations;
                 inode->i_fop = &simple_dir_operations;
                 inc_nlink(parent->d_inode);
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index 18124b75a7ab..9d88db1f55d0 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -73,7 +73,7 @@ typedef struct debug_info {
         struct dentry* debugfs_entries[DEBUG_MAX_VIEWS];
         struct debug_view* views[DEBUG_MAX_VIEWS];      
         char name[DEBUG_MAX_NAME_LEN];
-        mode_t mode;
+        umode_t mode;
 } debug_info_t;
 
 typedef int (debug_header_proc_t) (debug_info_t* id,
@@ -124,7 +124,7 @@ debug_info_t *debug_register(const char *name, int pages, int nr_areas,
                              int buf_size);
 
 debug_info_t *debug_register_mode(const char *name, int pages, int nr_areas,
-                                  int buf_size, mode_t mode, uid_t uid,
+                                  int buf_size, umode_t mode, uid_t uid,
                                   gid_t gid);
 
 void debug_unregister(debug_info_t* id);
diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h
index eeb52ccf499f..05ebbcdbbf6b 100644
--- a/arch/s390/include/asm/types.h
+++ b/arch/s390/include/asm/types.h
@@ -13,8 +13,6 @@
 
 #ifndef __ASSEMBLY__
 
-typedef unsigned short umode_t;
-
 /* A address type so that arithmetic can be done on it & it can be upgraded to
    64 bit when necessary 
 */
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 5ad6bc078bfd..6848828b962e 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -74,7 +74,7 @@ static ssize_t debug_input(struct file *file, const char __user *user_buf,
 static int debug_open(struct inode *inode, struct file *file);
 static int debug_close(struct inode *inode, struct file *file);
 static debug_info_t *debug_info_create(const char *name, int pages_per_area,
-                        int nr_areas, int buf_size, mode_t mode);
+                        int nr_areas, int buf_size, umode_t mode);
 static void debug_info_get(debug_info_t *);
 static void debug_info_put(debug_info_t *);
 static int debug_prolog_level_fn(debug_info_t * id,
@@ -330,7 +330,7 @@ debug_info_free(debug_info_t* db_info){
 
 static debug_info_t*
 debug_info_create(const char *name, int pages_per_area, int nr_areas,
-                  int buf_size, mode_t mode)
+                  int buf_size, umode_t mode)
 {
         debug_info_t* rc;
 
@@ -688,7 +688,7 @@ debug_close(struct inode *inode, struct file *file)
  */
 
 debug_info_t *debug_register_mode(const char *name, int pages_per_area,
-                                  int nr_areas, int buf_size, mode_t mode,
+                                  int nr_areas, int buf_size, umode_t mode,
                                   uid_t uid, gid_t gid)
 {
         debug_info_t *rc = NULL;
@@ -1090,7 +1090,7 @@ debug_register_view(debug_info_t * id, struct debug_view *view)
         int rc = 0;
         int i;
         unsigned long flags;
-        mode_t mode;
+        umode_t mode;
         struct dentry *pde;
 
         if (!id)
diff --git a/arch/sparc/include/asm/posix_types.h b/arch/sparc/include/asm/posix_types.h
index 98d6ebb922fb..dbfc1a34b3a2 100644
--- a/arch/sparc/include/asm/posix_types.h
+++ b/arch/sparc/include/asm/posix_types.h
@@ -20,7 +20,6 @@ typedef unsigned int           __kernel_uid_t;
 typedef unsigned int           __kernel_gid_t;
 typedef unsigned long          __kernel_ino_t;
 typedef unsigned int           __kernel_mode_t;
-typedef unsigned short         __kernel_umode_t;
 typedef unsigned int           __kernel_nlink_t;
 typedef int                    __kernel_daddr_t;
 typedef long                   __kernel_off_t;
@@ -55,7 +54,6 @@ typedef unsigned short         __kernel_uid_t;
 typedef unsigned short         __kernel_gid_t;
 typedef unsigned long          __kernel_ino_t;
 typedef unsigned short         __kernel_mode_t;
-typedef unsigned short         __kernel_umode_t;
 typedef short                  __kernel_nlink_t;
 typedef long                   __kernel_daddr_t;
 typedef long                   __kernel_off_t;
diff --git a/arch/sparc/include/asm/types.h b/arch/sparc/include/asm/types.h
index 91e5a034f987..383d156cde9c 100644
--- a/arch/sparc/include/asm/types.h
+++ b/arch/sparc/include/asm/types.h
@@ -12,12 +12,6 @@
 
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 #endif /* defined(__sparc__) */
 
 #endif /* defined(_SPARC_TYPES_H) */
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 212a6a42527c..a524353d93f2 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -177,7 +177,7 @@ static struct notifier_block __refdata cpuid_class_cpu_notifier =
         .notifier_call = cpuid_class_cpu_callback,
 };
 
-static char *cpuid_devnode(struct device *dev, mode_t *mode)
+static char *cpuid_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "cpu/%u/cpuid", MINOR(dev->devt));
 }
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 12fcbe2c143e..96356762a51d 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -236,7 +236,7 @@ static struct notifier_block __refdata msr_class_cpu_notifier = {
         .notifier_call = msr_class_cpu_callback,
 };
 
-static char *msr_devnode(struct device *dev, mode_t *mode)
+static char *msr_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "cpu/%u/msr", MINOR(dev->devt));
 }
diff --git a/arch/x86/xen/debugfs.c b/arch/x86/xen/debugfs.c
index 7c0fedd98ea0..ef1db1900d86 100644
--- a/arch/x86/xen/debugfs.c
+++ b/arch/x86/xen/debugfs.c
@@ -109,7 +109,7 @@ static const struct file_operations u32_array_fops = {
         .llseek = no_llseek,
 };
 
-struct dentry *xen_debugfs_create_u32_array(const char *name, mode_t mode,
+struct dentry *xen_debugfs_create_u32_array(const char *name, umode_t mode,
                                             struct dentry *parent,
                                             u32 *array, unsigned elements)
 {
diff --git a/arch/x86/xen/debugfs.h b/arch/x86/xen/debugfs.h
index e28132084832..78d25499be5b 100644
--- a/arch/x86/xen/debugfs.h
+++ b/arch/x86/xen/debugfs.h
@@ -3,7 +3,7 @@
 
 struct dentry * __init xen_init_debugfs(void);
 
-struct dentry *xen_debugfs_create_u32_array(const char *name, mode_t mode,
+struct dentry *xen_debugfs_create_u32_array(const char *name, umode_t mode,
                                             struct dentry *parent,
                                             u32 *array, unsigned elements);
 
diff --git a/arch/xtensa/include/asm/types.h b/arch/xtensa/include/asm/types.h
index b1c981e39b52..6d4db7e8ffac 100644
--- a/arch/xtensa/include/asm/types.h
+++ b/arch/xtensa/include/asm/types.h
@@ -23,8 +23,6 @@
 
 #ifndef __ASSEMBLY__
 
-typedef unsigned short umode_t;
-
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
diff --git a/block/Kconfig b/block/Kconfig
index e97934eececa..09acf1b39905 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -99,6 +99,12 @@ config BLK_DEV_THROTTLING
 
         See Documentation/cgroups/blkio-controller.txt for more information.
 
+menu "Partition Types"
+
+source "block/partitions/Kconfig"
+
+endmenu
+
 endif # BLOCK
 
 config BLOCK_COMPAT
diff --git a/block/Makefile b/block/Makefile
index 514c6e4f427a..39b76ba66ffd 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -5,7 +5,8 @@
 obj-$(CONFIG_BLOCK) := elevator.o blk-core.o blk-tag.o blk-sysfs.o \
                         blk-flush.o blk-settings.o blk-ioc.o blk-map.o \
                         blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \
-                        blk-iopoll.o blk-lib.o ioctl.o genhd.o scsi_ioctl.o
+                        blk-iopoll.o blk-lib.o ioctl.o genhd.o scsi_ioctl.o \
+                        partition-generic.o partitions/
 
 obj-$(CONFIG_BLK_DEV_BSG)       += bsg.o
 obj-$(CONFIG_BLK_DEV_BSGLIB)    += bsg-lib.o
diff --git a/block/bsg.c b/block/bsg.c
index 702f1316bb8f..9651ec7b87c2 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -1070,7 +1070,7 @@ EXPORT_SYMBOL_GPL(bsg_register_queue);
 
 static struct cdev bsg_cdev;
 
-static char *bsg_devnode(struct device *dev, mode_t *mode)
+static char *bsg_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "bsg/%s", dev_name(dev));
 }
diff --git a/block/genhd.c b/block/genhd.c
index 02e9fca80825..83e7c04015e1 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -15,7 +15,6 @@
 #include <linux/slab.h>
 #include <linux/kmod.h>
 #include <linux/kobj_map.h>
-#include <linux/buffer_head.h>
 #include <linux/mutex.h>
 #include <linux/idr.h>
 #include <linux/log2.h>
@@ -507,7 +506,7 @@ static int exact_lock(dev_t devt, void *data)
         return 0;
 }
 
-void register_disk(struct gendisk *disk)
+static void register_disk(struct gendisk *disk)
 {
         struct device *ddev = disk_to_dev(disk);
         struct block_device *bdev;
@@ -1109,7 +1108,7 @@ struct class block_class = {
         .name           = "block",
 };
 
-static char *block_devnode(struct device *dev, mode_t *mode)
+static char *block_devnode(struct device *dev, umode_t *mode)
 {
         struct gendisk *disk = dev_to_disk(dev);
 
diff --git a/block/ioctl.c b/block/ioctl.c
index d510c2a4eff8..4828fa349813 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -5,7 +5,7 @@
 #include <linux/blkpg.h>
 #include <linux/hdreg.h>
 #include <linux/backing-dev.h>
-#include <linux/buffer_head.h>
+#include <linux/fs.h>
 #include <linux/blktrace_api.h>
 #include <asm/uaccess.h>
 
diff --git a/fs/partitions/check.c b/block/partition-generic.c
index e3c63d1c5e13..d06ec1c829c2 100644
--- a/fs/partitions/check.c
+++ b/block/partition-generic.c
@@ -1,6 +1,4 @@
 /*
- *  fs/partitions/check.c
- *
  *  Code extracted from drivers/block/genhd.c
  *  Copyright (C) 1991-1998  Linus Torvalds
  *  Re-organised Feb 1998 Russell King
@@ -9,8 +7,6 @@
  *  block drivers, which allows all the partition code to
  *  be grouped in one location, and it to be mostly self
  *  contained.
- *
- *  Added needed MAJORS for new pairs, {hdi,hdj}, {hdk,hdl}
  */
 
 #include <linux/init.h>
@@ -22,98 +18,11 @@
 #include <linux/genhd.h>
 #include <linux/blktrace_api.h>
 
-#include "check.h"
-
-#include "acorn.h"
-#include "amiga.h"
-#include "atari.h"
-#include "ldm.h"
-#include "mac.h"
-#include "msdos.h"
-#include "osf.h"
-#include "sgi.h"
-#include "sun.h"
-#include "ibm.h"
-#include "ultrix.h"
-#include "efi.h"
-#include "karma.h"
-#include "sysv68.h"
+#include "partitions/check.h"
 
 #ifdef CONFIG_BLK_DEV_MD
 extern void md_autodetect_dev(dev_t dev);
 #endif
-
-int warn_no_part = 1; /*This is ugly: should make genhd removable media aware*/
-
-static int (*check_part[])(struct parsed_partitions *) = {
-        /*
-         * Probe partition formats with tables at disk address 0
-         * that also have an ADFS boot block at 0xdc0.
-         */
-#ifdef CONFIG_ACORN_PARTITION_ICS
-        adfspart_check_ICS,
-#endif
-#ifdef CONFIG_ACORN_PARTITION_POWERTEC
-        adfspart_check_POWERTEC,
-#endif
-#ifdef CONFIG_ACORN_PARTITION_EESOX
-        adfspart_check_EESOX,
-#endif
-
-        /*
-         * Now move on to formats that only have partition info at
-         * disk address 0xdc0.  Since these may also have stale
-         * PC/BIOS partition tables, they need to come before
-         * the msdos entry.
-         */
-#ifdef CONFIG_ACORN_PARTITION_CUMANA
-        adfspart_check_CUMANA,
-#endif
-#ifdef CONFIG_ACORN_PARTITION_ADFS
-        adfspart_check_ADFS,
-#endif
-
-#ifdef CONFIG_EFI_PARTITION
-        efi_partition,          /* this must come before msdos */
-#endif
-#ifdef CONFIG_SGI_PARTITION
-        sgi_partition,
-#endif
-#ifdef CONFIG_LDM_PARTITION
-        ldm_partition,          /* this must come before msdos */
-#endif
-#ifdef CONFIG_MSDOS_PARTITION
-        msdos_partition,
-#endif
-#ifdef CONFIG_OSF_PARTITION
-        osf_partition,
-#endif
-#ifdef CONFIG_SUN_PARTITION
-        sun_partition,
-#endif
-#ifdef CONFIG_AMIGA_PARTITION
-        amiga_partition,
-#endif
-#ifdef CONFIG_ATARI_PARTITION
-        atari_partition,
-#endif
-#ifdef CONFIG_MAC_PARTITION
-        mac_partition,
-#endif
-#ifdef CONFIG_ULTRIX_PARTITION
-        ultrix_partition,
-#endif
-#ifdef CONFIG_IBM_PARTITION
-        ibm_partition,
-#endif
-#ifdef CONFIG_KARMA_PARTITION
-        karma_partition,
-#endif
-#ifdef CONFIG_SYSV68_PARTITION
-        sysv68_partition,
-#endif
-        NULL
-};
  
 /*
  * disk_name() is used by partition check code and the genhd driver.
@@ -155,65 +64,6 @@ const char *__bdevname(dev_t dev, char *buffer)
 
 EXPORT_SYMBOL(__bdevname);
 
-static struct parsed_partitions *
-check_partition(struct gendisk *hd, struct block_device *bdev)
-{
-        struct parsed_partitions *state;
-        int i, res, err;
-
-        state = kzalloc(sizeof(struct parsed_partitions), GFP_KERNEL);
-        if (!state)
-                return NULL;
-        state->pp_buf = (char *)__get_free_page(GFP_KERNEL);
-        if (!state->pp_buf) {
-                kfree(state);
-                return NULL;
-        }
-        state->pp_buf[0] = '\0';
-
-        state->bdev = bdev;
-        disk_name(hd, 0, state->name);
-        snprintf(state->pp_buf, PAGE_SIZE, " %s:", state->name);
-        if (isdigit(state->name[strlen(state->name)-1]))
-                sprintf(state->name, "p");
-
-        state->limit = disk_max_parts(hd);
-        i = res = err = 0;
-        while (!res && check_part[i]) {
-                memset(&state->parts, 0, sizeof(state->parts));
-                res = check_part[i++](state);
-                if (res < 0) {
-                        /* We have hit an I/O error which we don't report now.
-                        * But record it, and let the others do their job.
-                        */
-                        err = res;
-                        res = 0;
-                }
-
-        }
-        if (res > 0) {
-                printk(KERN_INFO "%s", state->pp_buf);
-
-                free_page((unsigned long)state->pp_buf);
-                return state;
-        }
-        if (state->access_beyond_eod)
-                err = -ENOSPC;
-        if (err)
-        /* The partition is unrecognized. So report I/O errors if there were any */
-                res = err;
-        if (!res)
-                strlcat(state->pp_buf, " unknown partition table\n", PAGE_SIZE);
-        else if (warn_no_part)
-                strlcat(state->pp_buf, " unable to read partition table\n", PAGE_SIZE);
-
-        printk(KERN_INFO "%s", state->pp_buf);
-
-        free_page((unsigned long)state->pp_buf);
-        kfree(state);
-        return ERR_PTR(res);
-}
-
 static ssize_t part_partition_show(struct device *dev,
                                    struct device_attribute *attr, char *buf)
 {
diff --git a/fs/partitions/Kconfig b/block/partitions/Kconfig
index cb5f0a3f1b03..cb5f0a3f1b03 100644
--- a/fs/partitions/Kconfig
+++ b/block/partitions/Kconfig
diff --git a/fs/partitions/Makefile b/block/partitions/Makefile
index 03af8eac51da..03af8eac51da 100644
--- a/fs/partitions/Makefile
+++ b/block/partitions/Makefile
diff --git a/fs/partitions/acorn.c b/block/partitions/acorn.c
index fbeb697374d5..fbeb697374d5 100644
--- a/fs/partitions/acorn.c
+++ b/block/partitions/acorn.c
diff --git a/fs/partitions/acorn.h b/block/partitions/acorn.h
index ede828529692..ede828529692 100644
--- a/fs/partitions/acorn.h
+++ b/block/partitions/acorn.h
diff --git a/fs/partitions/amiga.c b/block/partitions/amiga.c
index 70cbf44a1560..70cbf44a1560 100644
--- a/fs/partitions/amiga.c
+++ b/block/partitions/amiga.c
diff --git a/fs/partitions/amiga.h b/block/partitions/amiga.h
index d094585cadaa..d094585cadaa 100644
--- a/fs/partitions/amiga.h
+++ b/block/partitions/amiga.h
diff --git a/fs/partitions/atari.c b/block/partitions/atari.c
index 9875b05e80a2..9875b05e80a2 100644
--- a/fs/partitions/atari.c
+++ b/block/partitions/atari.c
diff --git a/fs/partitions/atari.h b/block/partitions/atari.h
index fe2d32a89f36..fe2d32a89f36 100644
--- a/fs/partitions/atari.h
+++ b/block/partitions/atari.h
diff --git a/block/partitions/check.c b/block/partitions/check.c
new file mode 100644
index 000000000000..bc908672c976
--- /dev/null
+++ b/block/partitions/check.c
@@ -0,0 +1,166 @@
+/*
+ *  fs/partitions/check.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *  Re-organised Feb 1998 Russell King
+ *
+ *  We now have independent partition support from the
+ *  block drivers, which allows all the partition code to
+ *  be grouped in one location, and it to be mostly self
+ *  contained.
+ *
+ *  Added needed MAJORS for new pairs, {hdi,hdj}, {hdk,hdl}
+ */
+
+#include <linux/slab.h>
+#include <linux/ctype.h>
+#include <linux/genhd.h>
+
+#include "check.h"
+
+#include "acorn.h"
+#include "amiga.h"
+#include "atari.h"
+#include "ldm.h"
+#include "mac.h"
+#include "msdos.h"
+#include "osf.h"
+#include "sgi.h"
+#include "sun.h"
+#include "ibm.h"
+#include "ultrix.h"
+#include "efi.h"
+#include "karma.h"
+#include "sysv68.h"
+
+int warn_no_part = 1; /*This is ugly: should make genhd removable media aware*/
+
+static int (*check_part[])(struct parsed_partitions *) = {
+        /*
+         * Probe partition formats with tables at disk address 0
+         * that also have an ADFS boot block at 0xdc0.
+         */
+#ifdef CONFIG_ACORN_PARTITION_ICS
+        adfspart_check_ICS,
+#endif
+#ifdef CONFIG_ACORN_PARTITION_POWERTEC
+        adfspart_check_POWERTEC,
+#endif
+#ifdef CONFIG_ACORN_PARTITION_EESOX
+        adfspart_check_EESOX,
+#endif
+
+        /*
+         * Now move on to formats that only have partition info at
+         * disk address 0xdc0.  Since these may also have stale
+         * PC/BIOS partition tables, they need to come before
+         * the msdos entry.
+         */
+#ifdef CONFIG_ACORN_PARTITION_CUMANA
+        adfspart_check_CUMANA,
+#endif
+#ifdef CONFIG_ACORN_PARTITION_ADFS
+        adfspart_check_ADFS,
+#endif
+
+#ifdef CONFIG_EFI_PARTITION
+        efi_partition,          /* this must come before msdos */
+#endif
+#ifdef CONFIG_SGI_PARTITION
+        sgi_partition,
+#endif
+#ifdef CONFIG_LDM_PARTITION
+        ldm_partition,          /* this must come before msdos */
+#endif
+#ifdef CONFIG_MSDOS_PARTITION
+        msdos_partition,
+#endif
+#ifdef CONFIG_OSF_PARTITION
+        osf_partition,
+#endif
+#ifdef CONFIG_SUN_PARTITION
+        sun_partition,
+#endif
+#ifdef CONFIG_AMIGA_PARTITION
+        amiga_partition,
+#endif
+#ifdef CONFIG_ATARI_PARTITION
+        atari_partition,
+#endif
+#ifdef CONFIG_MAC_PARTITION
+        mac_partition,
+#endif
+#ifdef CONFIG_ULTRIX_PARTITION
+        ultrix_partition,
+#endif
+#ifdef CONFIG_IBM_PARTITION
+        ibm_partition,
+#endif
+#ifdef CONFIG_KARMA_PARTITION
+        karma_partition,
+#endif
+#ifdef CONFIG_SYSV68_PARTITION
+        sysv68_partition,
+#endif
+        NULL
+};
+
+struct parsed_partitions *
+check_partition(struct gendisk *hd, struct block_device *bdev)
+{
+        struct parsed_partitions *state;
+        int i, res, err;
+
+        state = kzalloc(sizeof(struct parsed_partitions), GFP_KERNEL);
+        if (!state)
+                return NULL;
+        state->pp_buf = (char *)__get_free_page(GFP_KERNEL);
+        if (!state->pp_buf) {
+                kfree(state);
+                return NULL;
+        }
+        state->pp_buf[0] = '\0';
+
+        state->bdev = bdev;
+        disk_name(hd, 0, state->name);
+        snprintf(state->pp_buf, PAGE_SIZE, " %s:", state->name);
+        if (isdigit(state->name[strlen(state->name)-1]))
+                sprintf(state->name, "p");
+
+        state->limit = disk_max_parts(hd);
+        i = res = err = 0;
+        while (!res && check_part[i]) {
+                memset(&state->parts, 0, sizeof(state->parts));
+                res = check_part[i++](state);
+                if (res < 0) {
+                        /* We have hit an I/O error which we don't report now.
+                        * But record it, and let the others do their job.
+                        */
+                        err = res;
+                        res = 0;
+                }
+
+        }
+        if (res > 0) {
+                printk(KERN_INFO "%s", state->pp_buf);
+
+                free_page((unsigned long)state->pp_buf);
+                return state;
+        }
+        if (state->access_beyond_eod)
+                err = -ENOSPC;
+        if (err)
+        /* The partition is unrecognized. So report I/O errors if there were any */
+                res = err;
+        if (!res)
+                strlcat(state->pp_buf, " unknown partition table\n", PAGE_SIZE);
+        else if (warn_no_part)
+                strlcat(state->pp_buf, " unable to read partition table\n", PAGE_SIZE);
+
+        printk(KERN_INFO "%s", state->pp_buf);
+
+        free_page((unsigned long)state->pp_buf);
+        kfree(state);
+        return ERR_PTR(res);
+}
diff --git a/fs/partitions/check.h b/block/partitions/check.h
index d68bf4dc3bc2..52b100311ec3 100644
--- a/fs/partitions/check.h
+++ b/block/partitions/check.h
@@ -22,6 +22,9 @@ struct parsed_partitions {
         char *pp_buf;
 };
 
+struct parsed_partitions *
+check_partition(struct gendisk *, struct block_device *);
+
 static inline void *read_part_sector(struct parsed_partitions *state,
                                      sector_t n, Sector *p)
 {
diff --git a/fs/partitions/efi.c b/block/partitions/efi.c
index 6296b403c67a..6296b403c67a 100644
--- a/fs/partitions/efi.c
+++ b/block/partitions/efi.c
diff --git a/fs/partitions/efi.h b/block/partitions/efi.h
index b69ab729558f..b69ab729558f 100644
--- a/fs/partitions/efi.h
+++ b/block/partitions/efi.h
diff --git a/fs/partitions/ibm.c b/block/partitions/ibm.c
index d513a07f44bb..d513a07f44bb 100644
--- a/fs/partitions/ibm.c
+++ b/block/partitions/ibm.c
diff --git a/fs/partitions/ibm.h b/block/partitions/ibm.h
index 08fb0804a812..08fb0804a812 100644
--- a/fs/partitions/ibm.h
+++ b/block/partitions/ibm.h
diff --git a/fs/partitions/karma.c b/block/partitions/karma.c
index 0ea19312706b..0ea19312706b 100644
--- a/fs/partitions/karma.c
+++ b/block/partitions/karma.c
diff --git a/fs/partitions/karma.h b/block/partitions/karma.h
index c764b2e9df21..c764b2e9df21 100644
--- a/fs/partitions/karma.h
+++ b/block/partitions/karma.h
diff --git a/fs/partitions/ldm.c b/block/partitions/ldm.c
index bd8ae788f689..bd8ae788f689 100644
--- a/fs/partitions/ldm.c
+++ b/block/partitions/ldm.c
diff --git a/fs/partitions/ldm.h b/block/partitions/ldm.h
index 374242c0971a..374242c0971a 100644
--- a/fs/partitions/ldm.h
+++ b/block/partitions/ldm.h
diff --git a/fs/partitions/mac.c b/block/partitions/mac.c
index 11f688bd76c5..11f688bd76c5 100644
--- a/fs/partitions/mac.c
+++ b/block/partitions/mac.c
diff --git a/fs/partitions/mac.h b/block/partitions/mac.h
index 3c7d98436380..3c7d98436380 100644
--- a/fs/partitions/mac.h
+++ b/block/partitions/mac.h
diff --git a/fs/partitions/msdos.c b/block/partitions/msdos.c
index 5f79a6677c69..5f79a6677c69 100644
--- a/fs/partitions/msdos.c
+++ b/block/partitions/msdos.c
diff --git a/fs/partitions/msdos.h b/block/partitions/msdos.h
index 38c781c490b3..38c781c490b3 100644
--- a/fs/partitions/msdos.h
+++ b/block/partitions/msdos.h
diff --git a/fs/partitions/osf.c b/block/partitions/osf.c
index 764b86a01965..764b86a01965 100644
--- a/fs/partitions/osf.c
+++ b/block/partitions/osf.c
diff --git a/fs/partitions/osf.h b/block/partitions/osf.h
index 20ed2315ec16..20ed2315ec16 100644
--- a/fs/partitions/osf.h
+++ b/block/partitions/osf.h
diff --git a/fs/partitions/sgi.c b/block/partitions/sgi.c
index ea8a86dceaf4..ea8a86dceaf4 100644
--- a/fs/partitions/sgi.c
+++ b/block/partitions/sgi.c
diff --git a/fs/partitions/sgi.h b/block/partitions/sgi.h
index b9553ebdd5a9..b9553ebdd5a9 100644
--- a/fs/partitions/sgi.h
+++ b/block/partitions/sgi.h
diff --git a/fs/partitions/sun.c b/block/partitions/sun.c
index b5b6fcfb3d36..b5b6fcfb3d36 100644
--- a/fs/partitions/sun.c
+++ b/block/partitions/sun.c
diff --git a/fs/partitions/sun.h b/block/partitions/sun.h
index 2424baa8319f..2424baa8319f 100644
--- a/fs/partitions/sun.h
+++ b/block/partitions/sun.h
diff --git a/fs/partitions/sysv68.c b/block/partitions/sysv68.c
index 9627ccffc1c4..9627ccffc1c4 100644
--- a/fs/partitions/sysv68.c
+++ b/block/partitions/sysv68.c
diff --git a/fs/partitions/sysv68.h b/block/partitions/sysv68.h
index bf2f5ffa97ac..bf2f5ffa97ac 100644
--- a/fs/partitions/sysv68.h
+++ b/block/partitions/sysv68.h
diff --git a/fs/partitions/ultrix.c b/block/partitions/ultrix.c
index 8dbaf9f77a99..8dbaf9f77a99 100644
--- a/fs/partitions/ultrix.c
+++ b/block/partitions/ultrix.c
diff --git a/fs/partitions/ultrix.h b/block/partitions/ultrix.h
index a3cc00b2bded..a3cc00b2bded 100644
--- a/fs/partitions/ultrix.h
+++ b/block/partitions/ultrix.h
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 7711d94a0409..86933ca8b472 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -873,7 +873,7 @@ DECLARE_FILE_FUNCTIONS(alarm);
 
 static const struct battery_file {
         struct file_operations ops;
-        mode_t mode;
+        umode_t mode;
         const char *name;
 } acpi_battery_file[] = {
         FILE_DESCRIPTION_RO(info),
diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
index 6c47ae9793a7..b258cab9061c 100644
--- a/drivers/acpi/ec_sys.c
+++ b/drivers/acpi/ec_sys.c
@@ -105,7 +105,7 @@ int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count)
 {
         struct dentry *dev_dir;
         char name[64];
-        mode_t mode = 0400;
+        umode_t mode = 0400;
 
         if (ec_device_count == 0) {
                 acpi_ec_debugfs_dir = debugfs_create_dir("ec", NULL);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 4dac58aa4a0a..4a67cc0c8b37 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -248,7 +248,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
         if (MAJOR(dev->devt)) {
                 const char *tmp;
                 const char *name;
-                mode_t mode = 0;
+                umode_t mode = 0;
 
                 add_uevent_var(env, "MAJOR=%u", MAJOR(dev->devt));
                 add_uevent_var(env, "MINOR=%u", MINOR(dev->devt));
@@ -1235,7 +1235,7 @@ static struct device *next_device(struct klist_iter *i)
  * freed by the caller.
  */
 const char *device_get_devnode(struct device *dev,
-                               mode_t *mode, const char **tmp)
+                               umode_t *mode, const char **tmp)
 {
         char *s;
 
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 2bb4bff3af7d..8493536ea55b 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -40,7 +40,7 @@ static struct req {
         struct completion done;
         int err;
         const char *name;
-        mode_t mode;    /* 0 => delete */
+        umode_t mode;   /* 0 => delete */
         struct device *dev;
 } *requests;
 
@@ -142,7 +142,7 @@ int devtmpfs_delete_node(struct device *dev)
         return req.err;
 }
 
-static int dev_mkdir(const char *name, mode_t mode)
+static int dev_mkdir(const char *name, umode_t mode)
 {
         struct dentry *dentry;
         struct path path;
@@ -189,7 +189,7 @@ static int create_path(const char *nodepath)
         return err;
 }
 
-static int handle_create(const char *nodename, mode_t mode, struct device *dev)
+static int handle_create(const char *nodename, umode_t mode, struct device *dev)
 {
         struct dentry *dentry;
         struct path path;
@@ -378,7 +378,7 @@ int devtmpfs_mount(const char *mntdir)
 
 static DECLARE_COMPLETION(setup_done);
 
-static int handle(const char *name, mode_t mode, struct device *dev)
+static int handle(const char *name, umode_t mode, struct device *dev)
 {
         if (mode)
                 return handle_create(name, mode, dev);
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 8eba86bba599..386146d792d1 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -63,7 +63,7 @@
 #include <linux/mutex.h>
 #include <linux/amifdreg.h>
 #include <linux/amifd.h>
-#include <linux/buffer_head.h>
+#include <linux/fs.h>
 #include <linux/blkdev.h>
 #include <linux/elevator.h>
 #include <linux/interrupt.h>
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 5f8e39c43ae5..e86d2062a164 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -270,7 +270,7 @@ static const struct file_operations aoe_fops = {
         .llseek = noop_llseek,
 };
 
-static char *aoe_devnode(struct device *dev, mode_t *mode)
+static char *aoe_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "etherd/%s", dev_name(dev));
 }
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index d22119d49e53..ec246437f5a4 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -17,7 +17,7 @@
 #include <linux/highmem.h>
 #include <linux/mutex.h>
 #include <linux/radix-tree.h>
-#include <linux/buffer_head.h> /* invalidate_bh_lrus() */
+#include <linux/fs.h>
 #include <linux/slab.h>
 
 #include <asm/uaccess.h>
@@ -402,14 +402,13 @@ static int brd_ioctl(struct block_device *bdev, fmode_t mode,
         error = -EBUSY;
         if (bdev->bd_openers <= 1) {
                 /*
-                 * Invalidate the cache first, so it isn't written
-                 * back to the device.
+                 * Kill the cache first, so it isn't written back to the
+                 * device.
                  *
                  * Another thread might instantiate more buffercache here,
                  * but there is not much we can do to close that race.
                  */
-                invalidate_bh_lrus();
-                truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
+                kill_bdev(bdev);
                 brd_free_pages(brd);
                 error = 0;
         }
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 9955a53733b2..510fb10ec45a 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -188,7 +188,6 @@ static int print_unex = 1;
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/mod_devicetable.h>
-#include <linux/buffer_head.h>  /* for invalidate_buffers() */
 #include <linux/mutex.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 1e888c9e85b3..f00257782fcc 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -69,7 +69,6 @@
 #include <linux/freezer.h>
 #include <linux/mutex.h>
 #include <linux/writeback.h>
-#include <linux/buffer_head.h>          /* for invalidate_bdev() */
 #include <linux/completion.h>
 #include <linux/highmem.h>
 #include <linux/kthread.h>
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index a63b0a2b7805..d59edeabd93f 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2817,7 +2817,7 @@ static const struct block_device_operations pktcdvd_ops = {
         .check_events =         pkt_check_events,
 };
 
-static char *pktcdvd_devnode(struct gendisk *gd, mode_t *mode)
+static char *pktcdvd_devnode(struct gendisk *gd, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "pktcdvd/%s", gd->disk_name);
 }
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index f997c27d79e2..2118211aff99 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -267,7 +267,6 @@
 
 #include <linux/module.h>
 #include <linux/fs.h>
-#include <linux/buffer_head.h>
 #include <linux/major.h>
 #include <linux/types.h>
 #include <linux/errno.h>
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 145179033716..d6e9d081c8b1 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -847,7 +847,7 @@ static const struct file_operations kmsg_fops = {
 
 static const struct memdev {
         const char *name;
-        mode_t mode;
+        umode_t mode;
         const struct file_operations *fops;
         struct backing_dev_info *dev_info;
 } devlist[] = {
@@ -901,7 +901,7 @@ static const struct file_operations memory_fops = {
         .llseek = noop_llseek,
 };
 
-static char *mem_devnode(struct device *dev, mode_t *mode)
+static char *mem_devnode(struct device *dev, umode_t *mode)
 {
         if (mode && devlist[MINOR(dev->devt)].mode)
                 *mode = devlist[MINOR(dev->devt)].mode;
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 778273c93242..522136d40843 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -258,7 +258,7 @@ int misc_deregister(struct miscdevice *misc)
 EXPORT_SYMBOL(misc_register);
 EXPORT_SYMBOL(misc_deregister);
 
-static char *misc_devnode(struct device *dev, mode_t *mode)
+static char *misc_devnode(struct device *dev, umode_t *mode)
 {
         struct miscdevice *c = dev_get_drvdata(dev);
 
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index b6de2c047145..54a3a6d09819 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -308,7 +308,7 @@ static const struct file_operations raw_ctl_fops = {
 
 static struct cdev raw_cdev;
 
-static char *raw_devnode(struct device *dev, mode_t *mode)
+static char *raw_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "raw/%s", dev_name(dev));
 }
diff --git a/drivers/char/tile-srom.c b/drivers/char/tile-srom.c
index cf3ee008dca2..4dc019408fac 100644
--- a/drivers/char/tile-srom.c
+++ b/drivers/char/tile-srom.c
@@ -329,7 +329,7 @@ static struct device_attribute srom_dev_attrs[] = {
         __ATTR_NULL
 };
 
-static char *srom_devnode(struct device *dev, mode_t *mode)
+static char *srom_devnode(struct device *dev, umode_t *mode)
 {
         *mode = S_IRUGO | S_IWUSR;
         return kasprintf(GFP_KERNEL, "srom/%s", dev_name(dev));
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index 2cce44a1d7d0..3ee852c9925b 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -433,11 +433,11 @@ static int __init ibft_check_device(void)
  * Helper routiners to check to determine if the entry is valid
  * in the proper iBFT structure.
  */
-static mode_t ibft_check_nic_for(void *data, int type)
+static umode_t ibft_check_nic_for(void *data, int type)
 {
         struct ibft_kobject *entry = data;
         struct ibft_nic *nic = entry->nic;
-        mode_t rc = 0;
+        umode_t rc = 0;
 
         switch (type) {
         case ISCSI_BOOT_ETH_INDEX:
@@ -488,11 +488,11 @@ static mode_t ibft_check_nic_for(void *data, int type)
         return rc;
 }
 
-static mode_t __init ibft_check_tgt_for(void *data, int type)
+static umode_t __init ibft_check_tgt_for(void *data, int type)
 {
         struct ibft_kobject *entry = data;
         struct ibft_tgt *tgt = entry->tgt;
-        mode_t rc = 0;
+        umode_t rc = 0;
 
         switch (type) {
         case ISCSI_BOOT_TGT_INDEX:
@@ -524,11 +524,11 @@ static mode_t __init ibft_check_tgt_for(void *data, int type)
         return rc;
 }
 
-static mode_t __init ibft_check_initiator_for(void *data, int type)
+static umode_t __init ibft_check_initiator_for(void *data, int type)
 {
         struct ibft_kobject *entry = data;
         struct ibft_initiator *init = entry->initiator;
-        mode_t rc = 0;
+        umode_t rc = 0;
 
         switch (type) {
         case ISCSI_BOOT_INI_INDEX:
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 0f9ef9bf6730..62c3675045ac 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -72,7 +72,7 @@ static int drm_class_resume(struct device *dev)
         return 0;
 }
 
-static char *drm_devnode(struct device *dev, mode_t *mode)
+static char *drm_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
 }
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 4ef02b269a71..7c297d305d5d 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -859,7 +859,7 @@ static const struct file_operations hiddev_fops = {
         .llseek         = noop_llseek,
 };
 
-static char *hiddev_devnode(struct device *dev, mode_t *mode)
+static char *hiddev_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
 }
diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c
index d9c592713919..d9803958e49f 100644
--- a/drivers/hwmon/dme1737.c
+++ b/drivers/hwmon/dme1737.c
@@ -1223,7 +1223,7 @@ static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
 }
 
 static struct attribute *dme1737_pwm_chmod_attr[];
-static void dme1737_chmod_file(struct device*, struct attribute*, mode_t);
+static void dme1737_chmod_file(struct device*, struct attribute*, umode_t);
 
 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
                        const char *buf, size_t count)
@@ -1961,7 +1961,7 @@ static inline void dme1737_sio_outb(int sio_cip, int reg, int val)
 static int dme1737_i2c_get_features(int, struct dme1737_data*);
 
 static void dme1737_chmod_file(struct device *dev,
-                               struct attribute *attr, mode_t mode)
+                               struct attribute *attr, umode_t mode)
 {
         if (sysfs_chmod_file(&dev->kobj, attr, mode)) {
                 dev_warn(dev, "Failed to change permissions of %s.\n",
@@ -1971,7 +1971,7 @@ static void dme1737_chmod_file(struct device *dev,
 
 static void dme1737_chmod_group(struct device *dev,
                                 const struct attribute_group *group,
-                                mode_t mode)
+                                umode_t mode)
 {
         struct attribute **attr;
 
diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 2d3d72805ff4..1a92951f4031 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -413,7 +413,7 @@ static struct attribute *jc42_attributes[] = {
         NULL
 };
 
-static mode_t jc42_attribute_mode(struct kobject *kobj,
+static umode_t jc42_attribute_mode(struct kobject *kobj,
                                   struct attribute *attr, int index)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c
index 20d1b2ddffb6..6914195cfd35 100644
--- a/drivers/hwmon/max1668.c
+++ b/drivers/hwmon/max1668.c
@@ -335,10 +335,10 @@ static struct attribute *max1668_attribute_unique[] = {
         NULL
 };
 
-static mode_t max1668_attribute_mode(struct kobject *kobj,
+static umode_t max1668_attribute_mode(struct kobject *kobj,
                                      struct attribute *attr, int index)
 {
-        int ret = S_IRUGO;
+        umode_t ret = S_IRUGO;
         if (read_only)
                 return ret;
         if (attr == &sensor_dev_attr_temp1_max.dev_attr.attr ||
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index ece3aafa54b3..2fc034aeca09 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -464,7 +464,7 @@ static SENSOR_DEVICE_ATTR(gpio1_alarm, S_IRUGO, get_alarm, NULL,
 static SENSOR_DEVICE_ATTR(gpio2_alarm, S_IRUGO, get_alarm, NULL,
                           MAX6650_ALRM_GPIO2);
 
-static mode_t max6650_attrs_visible(struct kobject *kobj, struct attribute *a,
+static umode_t max6650_attrs_visible(struct kobject *kobj, struct attribute *a,
                                     int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 0517a8f09d35..c48381f2cd02 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -157,7 +157,7 @@ static ssize_t show_fault(struct device *dev,
                 return sprintf(buf, "0\n");
 }
 
-static mode_t tmp421_is_visible(struct kobject *kobj, struct attribute *a,
+static umode_t tmp421_is_visible(struct kobject *kobj, struct attribute *a,
                                 int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 8b72f39202fb..c889aaef3416 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -3659,7 +3659,7 @@ static struct kobj_type cm_port_obj_type = {
         .release = cm_release_port_obj
 };
 
-static char *cm_devnode(struct device *dev, mode_t *mode)
+static char *cm_devnode(struct device *dev, umode_t *mode)
 {
         if (mode)
                 *mode = 0666;
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 07db22997e97..f0d588f8859e 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -1175,7 +1175,7 @@ static void ib_umad_remove_one(struct ib_device *device)
         kref_put(&umad_dev->ref, ib_umad_release_dev);
 }
 
-static char *umad_devnode(struct device *dev, mode_t *mode)
+static char *umad_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev));
 }
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 879636746373..604556d73d25 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -846,7 +846,7 @@ static void ib_uverbs_remove_one(struct ib_device *device)
         kfree(uverbs_dev);
 }
 
-static char *uverbs_devnode(struct device *dev, mode_t *mode)
+static char *uverbs_devnode(struct device *dev, umode_t *mode)
 {
         if (mode)
                 *mode = 0666;
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c
index 31ae1b108aea..b7d4216db3c3 100644
--- a/drivers/infiniband/hw/ipath/ipath_fs.c
+++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -46,7 +46,7 @@
 static struct super_block *ipath_super;
 
 static int ipathfs_mknod(struct inode *dir, struct dentry *dentry,
-                         int mode, const struct file_operations *fops,
+                         umode_t mode, const struct file_operations *fops,
                          void *data)
 {
         int error;
@@ -61,7 +61,7 @@ static int ipathfs_mknod(struct inode *dir, struct dentry *dentry,
         inode->i_mode = mode;
         inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
         inode->i_private = data;
-        if ((mode & S_IFMT) == S_IFDIR) {
+        if (S_ISDIR(mode)) {
                 inode->i_op = &simple_dir_inode_operations;
                 inc_nlink(inode);
                 inc_nlink(dir);
@@ -76,7 +76,7 @@ bail:
         return error;
 }
 
-static int create_file(const char *name, mode_t mode,
+static int create_file(const char *name, umode_t mode,
                        struct dentry *parent, struct dentry **dentry,
                        const struct file_operations *fops, void *data)
 {
diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
index df7fa251dcdc..05e0f17c5b44 100644
--- a/drivers/infiniband/hw/qib/qib_fs.c
+++ b/drivers/infiniband/hw/qib/qib_fs.c
@@ -47,7 +47,7 @@ static struct super_block *qib_super;
 #define private2dd(file) ((file)->f_dentry->d_inode->i_private)
 
 static int qibfs_mknod(struct inode *dir, struct dentry *dentry,
-                       int mode, const struct file_operations *fops,
+                       umode_t mode, const struct file_operations *fops,
                        void *data)
 {
         int error;
@@ -67,7 +67,7 @@ static int qibfs_mknod(struct inode *dir, struct dentry *dentry,
         inode->i_mtime = inode->i_atime;
         inode->i_ctime = inode->i_atime;
         inode->i_private = data;
-        if ((mode & S_IFMT) == S_IFDIR) {
+        if (S_ISDIR(mode)) {
                 inode->i_op = &simple_dir_inode_operations;
                 inc_nlink(inode);
                 inc_nlink(dir);
@@ -82,7 +82,7 @@ bail:
         return error;
 }
 
-static int create_file(const char *name, mode_t mode,
+static int create_file(const char *name, umode_t mode,
                        struct dentry *parent, struct dentry **dentry,
                        const struct file_operations *fops, void *data)
 {
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 7e7373a700e6..9a43cb07f294 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -638,7 +638,7 @@ iscsi_iser_ep_disconnect(struct iscsi_endpoint *ep)
         iser_conn_terminate(ib_conn);
 }
 
-static mode_t iser_attr_is_visible(int param_type, int param)
+static umode_t iser_attr_is_visible(int param_type, int param)
 {
         switch (param_type) {
         case ISCSI_HOST_PARAM:
diff --git a/drivers/input/input.c b/drivers/input/input.c
index da38d97a51b1..1f78c957a75a 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1624,7 +1624,7 @@ static struct device_type input_dev_type = {
 #endif
 };
 
-static char *input_devnode(struct device *dev, mode_t *mode)
+static char *input_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "input/%s", dev_name(dev));
 }
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index 400131df677b..baa43df6502d 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -612,10 +612,10 @@ static struct attribute *ad7877_attributes[] = {
         NULL
 };
 
-static mode_t ad7877_attr_is_visible(struct kobject *kobj,
+static umode_t ad7877_attr_is_visible(struct kobject *kobj,
                                      struct attribute *attr, int n)
 {
-        mode_t mode = attr->mode;
+        umode_t mode = attr->mode;
 
         if (attr == &dev_attr_aux3.attr) {
                 if (gpio3)
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index cbf0ff322676..067d95662997 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -450,13 +450,13 @@ static struct attribute *tsc2005_attrs[] = {
         NULL
 };
 
-static mode_t tsc2005_attr_is_visible(struct kobject *kobj,
+static umode_t tsc2005_attr_is_visible(struct kobject *kobj,
                                       struct attribute *attr, int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
         struct spi_device *spi = to_spi_device(dev);
         struct tsc2005 *ts = spi_get_drvdata(spi);
-        mode_t mode = attr->mode;
+        umode_t mode = attr->mode;
 
         if (attr == &dev_attr_selftest.attr) {
                 if (!ts->set_reset)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 4720f68f817e..b89c548ec3f8 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -14,7 +14,6 @@
 #include <linux/moduleparam.h>
 #include <linux/blkpg.h>
 #include <linux/bio.h>
-#include <linux/buffer_head.h>
 #include <linux/mempool.h>
 #include <linux/slab.h>
 #include <linux/idr.h>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index f47f1f8ac44b..5d1b6762f108 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -36,8 +36,7 @@
 #include <linux/blkdev.h>
 #include <linux/sysctl.h>
 #include <linux/seq_file.h>
-#include <linux/mutex.h>
-#include <linux/buffer_head.h> /* for invalidate_bdev */
+#include <linux/fs.h>
 #include <linux/poll.h>
 #include <linux/ctype.h>
 #include <linux/string.h>
diff --git a/drivers/media/dvb/ddbridge/ddbridge-core.c b/drivers/media/dvb/ddbridge/ddbridge-core.c
index ba9a643b9c6a..d1e91bc80e78 100644
--- a/drivers/media/dvb/ddbridge/ddbridge-core.c
+++ b/drivers/media/dvb/ddbridge/ddbridge-core.c
@@ -1480,7 +1480,7 @@ static const struct file_operations ddb_fops = {
         .open           = ddb_open,
 };
 
-static char *ddb_devnode(struct device *device, mode_t *mode)
+static char *ddb_devnode(struct device *device, umode_t *mode)
 {
         struct ddb *dev = dev_get_drvdata(device);
 
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index f73287775953..00a67326c193 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -450,7 +450,7 @@ static int dvb_uevent(struct device *dev, struct kobj_uevent_env *env)
         return 0;
 }
 
-static char *dvb_devnode(struct device *dev, mode_t *mode)
+static char *dvb_devnode(struct device *dev, umode_t *mode)
 {
         struct dvb_device *dvbdev = dev_get_drvdata(dev);
 
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 29f900065d8a..f5db8b949bc3 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -715,7 +715,7 @@ static void ir_close(struct input_dev *idev)
 }
 
 /* class for /sys/class/rc */
-static char *ir_devnode(struct device *dev, mode_t *mode)
+static char *ir_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "rc/%s", dev_name(dev));
 }
diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
index 07dbeaf9df99..6d115c7208ab 100644
--- a/drivers/message/i2o/i2o_proc.c
+++ b/drivers/message/i2o/i2o_proc.c
@@ -56,7 +56,7 @@
 /* Structure used to define /proc entries */
 typedef struct _i2o_proc_entry_t {
         char *name;             /* entry name */
-        mode_t mode;            /* mode */
+        umode_t mode;           /* mode */
         const struct file_operations *fops;     /* open function */
 } i2o_proc_entry;
 
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 7768b87d995b..950dbe9ecb36 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -324,7 +324,7 @@ static const struct file_operations gru_fops = {
 
 static struct proc_entry {
         char *name;
-        int mode;
+        umode_t mode;
         const struct file_operations *fops;
         struct proc_dir_entry *entry;
 } proc_files[] = {
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index b038c4a9468b..e99bdc18002d 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -2949,7 +2949,7 @@ static void mmc_test_free_dbgfs_file(struct mmc_card *card)
 }
 
 static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
-        const char *name, mode_t mode, const struct file_operations *fops)
+        const char *name, umode_t mode, const struct file_operations *fops)
 {
         struct dentry *file = NULL;
         struct mmc_test_dbgfs_file *df;
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index b78f23169d4e..ebeabc727f70 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -14,7 +14,6 @@
 #include <linux/list.h>
 #include <linux/init.h>
 #include <linux/mtd/mtd.h>
-#include <linux/buffer_head.h>
 #include <linux/mutex.h>
 #include <linux/mount.h>
 #include <linux/slab.h>
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index 5ca73671830b..e53365a71484 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -2003,7 +2003,7 @@ static const struct file_operations interfaces_proc_fops = {
  */
 struct cxgb4vf_debugfs_entry {
         const char *name;               /* name of debugfs node */
-        mode_t mode;                    /* file system mode */
+        umode_t mode;                   /* file system mode */
         const struct file_operations *fops;
 };
 
diff --git a/drivers/net/wireless/ath/carl9170/debug.c b/drivers/net/wireless/ath/carl9170/debug.c
index de57f90e1d5f..3c164226687f 100644
--- a/drivers/net/wireless/ath/carl9170/debug.c
+++ b/drivers/net/wireless/ath/carl9170/debug.c
@@ -56,7 +56,7 @@ static int carl9170_debugfs_open(struct inode *inode, struct file *file)
 
 struct carl9170_debugfs_fops {
         unsigned int read_bufsize;
-        mode_t attr;
+        umode_t attr;
         char *(*read)(struct ar9170 *ar, char *buf, size_t bufsize,
                       ssize_t *len);
         ssize_t (*write)(struct ar9170 *aru, const char *buf, size_t size);
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index d8d8f0d0899f..c192671610fc 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -704,7 +704,7 @@ out_unlock:
 
 struct lbs_debugfs_files {
         const char *name;
-        int perm;
+        umode_t perm;
         struct file_operations fops;
 };
 
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index 81525ae5d869..edaed6f4da6c 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -89,7 +89,7 @@ find_smbios_instance_string(struct pci_dev *pdev, char *buf,
         return 0;
 }
 
-static mode_t
+static umode_t
 smbios_instance_string_exist(struct kobject *kobj, struct attribute *attr,
                              int n)
 {
@@ -275,7 +275,7 @@ device_has_dsm(struct device *dev)
         return FALSE;
 }
 
-static mode_t
+static umode_t
 acpi_index_string_exist(struct kobject *kobj, struct attribute *attr, int n)
 {
         struct device *dev;
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index edaccad9b5bf..b7944f903886 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -1477,7 +1477,7 @@ static struct attribute *asus_attributes[] = {
         NULL
 };
 
-static mode_t asus_sysfs_is_visible(struct kobject *kobj,
+static umode_t asus_sysfs_is_visible(struct kobject *kobj,
                                     struct attribute *attr,
                                     int idx)
 {
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index d1049ee3c9e8..72d731c21d45 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -992,7 +992,7 @@ static struct attribute *hwmon_attributes[] = {
         NULL
 };
 
-static mode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
+static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
                                           struct attribute *attr, int idx)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
@@ -1357,7 +1357,7 @@ static struct attribute *platform_attributes[] = {
         NULL
 };
 
-static mode_t asus_sysfs_is_visible(struct kobject *kobj,
+static umode_t asus_sysfs_is_visible(struct kobject *kobj,
                                     struct attribute *attr, int idx)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c
index d9312b3073e5..6f966d6c062b 100644
--- a/drivers/platform/x86/asus_acpi.c
+++ b/drivers/platform/x86/asus_acpi.c
@@ -1053,7 +1053,7 @@ static const struct file_operations disp_proc_fops = {
 };
 
 static int
-asus_proc_add(char *name, const struct file_operations *proc_fops, mode_t mode,
+asus_proc_add(char *name, const struct file_operations *proc_fops, umode_t mode,
                      struct acpi_device *device)
 {
         struct proc_dir_entry *proc;
@@ -1072,7 +1072,7 @@ asus_proc_add(char *name, const struct file_operations *proc_fops, mode_t mode,
 static int asus_hotk_add_fs(struct acpi_device *device)
 {
         struct proc_dir_entry *proc;
-        mode_t mode;
+        umode_t mode;
 
         if ((asus_uid == 0) && (asus_gid == 0)) {
                 mode = S_IFREG | S_IRUGO | S_IWUSR | S_IWGRP;
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index a36addf106a0..ac902f7a9baa 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -368,7 +368,7 @@ static struct attribute *ideapad_attributes[] = {
         NULL
 };
 
-static mode_t ideapad_is_visible(struct kobject *kobj,
+static umode_t ideapad_is_visible(struct kobject *kobj,
                                  struct attribute *attr,
                                  int idx)
 {
diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c
index abddc83e9fd7..3271ac85115e 100644
--- a/drivers/platform/x86/intel_menlow.c
+++ b/drivers/platform/x86/intel_menlow.c
@@ -389,7 +389,7 @@ static ssize_t bios_enabled_show(struct device *dev,
         return sprintf(buf, "%s\n", bios_enabled ? "enabled" : "disabled");
 }
 
-static int intel_menlow_add_one_attribute(char *name, int mode, void *show,
+static int intel_menlow_add_one_attribute(char *name, umode_t mode, void *show,
                                           void *store, struct device *dev,
                                           acpi_handle handle)
 {
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 7b828680b21d..455e1522253e 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -297,7 +297,7 @@ struct ibm_init_struct {
         char param[32];
 
         int (*init) (struct ibm_init_struct *);
-        mode_t base_procfs_mode;
+        umode_t base_procfs_mode;
         struct ibm_struct *data;
 };
 
@@ -8542,7 +8542,7 @@ static int __init ibm_init(struct ibm_init_struct *iibm)
                 "%s installed\n", ibm->name);
 
         if (ibm->read) {
-                mode_t mode = iibm->base_procfs_mode;
+                umode_t mode = iibm->base_procfs_mode;
 
                 if (!mode)
                         mode = S_IRUGO;
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index e15d4c9d3988..e95cd657dac2 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -176,13 +176,13 @@ static struct device_attribute power_supply_attrs[] = {
 static struct attribute *
 __power_supply_attrs[ARRAY_SIZE(power_supply_attrs) + 1];
 
-static mode_t power_supply_attr_is_visible(struct kobject *kobj,
+static umode_t power_supply_attr_is_visible(struct kobject *kobj,
                                            struct attribute *attr,
                                            int attrno)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
         struct power_supply *psy = dev_get_drvdata(dev);
-        mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
+        umode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
         int i;
 
         if (attrno == POWER_SUPPLY_PROP_TYPE)
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 65894f05a801..eef27a197c00 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -17,7 +17,6 @@
 #include <linux/ctype.h>
 #include <linux/major.h>
 #include <linux/slab.h>
-#include <linux/buffer_head.h>
 #include <linux/hdreg.h>
 #include <linux/async.h>
 #include <linux/mutex.h>
@@ -1073,7 +1072,7 @@ static const struct file_operations dasd_stats_global_fops = {
 static void dasd_profile_init(struct dasd_profile *profile,
                               struct dentry *base_dentry)
 {
-        mode_t mode;
+        umode_t mode;
         struct dentry *pde;
 
         if (!base_dentry)
@@ -1112,7 +1111,7 @@ static void dasd_statistics_removeroot(void)
 
 static void dasd_statistics_createroot(void)
 {
-        mode_t mode;
+        umode_t mode;
         struct dentry *pde;
 
         dasd_debugfs_root_entry = NULL;
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 8b002f6db6ca..33c8f09c7ac1 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -733,7 +733,7 @@ void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
         iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
 }
 
-mode_t be2iscsi_attr_is_visible(int param_type, int param)
+umode_t be2iscsi_attr_is_visible(int param_type, int param)
 {
         switch (param_type) {
         case ISCSI_HOST_PARAM:
diff --git a/drivers/scsi/be2iscsi/be_iscsi.h b/drivers/scsi/be2iscsi/be_iscsi.h
index 4a1f2e393f31..5c45be134501 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.h
+++ b/drivers/scsi/be2iscsi/be_iscsi.h
@@ -26,7 +26,7 @@
 #define BE2_IPV4  0x1
 #define BE2_IPV6  0x10
 
-mode_t be2iscsi_attr_is_visible(int param_type, int param);
+umode_t be2iscsi_attr_is_visible(int param_type, int param);
 
 void beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
                                 struct beiscsi_offload_params *params);
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 379c696dac19..797a43994b55 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -325,9 +325,9 @@ static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf)
 }
 
 
-static mode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
+static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
 {
-        int rc;
+        umode_t rc;
 
         switch (type) {
         case ISCSI_BOOT_TGT_NAME:
@@ -348,9 +348,9 @@ static mode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
         return rc;
 }
 
-static mode_t beiscsi_ini_get_attr_visibility(void *data, int type)
+static umode_t beiscsi_ini_get_attr_visibility(void *data, int type)
 {
-        int rc;
+        umode_t rc;
 
         switch (type) {
         case ISCSI_BOOT_INI_INITIATOR_NAME:
@@ -364,9 +364,9 @@ static mode_t beiscsi_ini_get_attr_visibility(void *data, int type)
 }
 
 
-static mode_t beiscsi_eth_get_attr_visibility(void *data, int type)
+static umode_t beiscsi_eth_get_attr_visibility(void *data, int type)
 {
-        int rc;
+        umode_t rc;
 
         switch (type) {
         case ISCSI_BOOT_ETH_FLAGS:
diff --git a/drivers/scsi/bfa/bfad_debugfs.c b/drivers/scsi/bfa/bfad_debugfs.c
index dee1a094c2c2..caca9b7c8309 100644
--- a/drivers/scsi/bfa/bfad_debugfs.c
+++ b/drivers/scsi/bfa/bfad_debugfs.c
@@ -472,7 +472,7 @@ static const struct file_operations bfad_debugfs_op_regwr = {
 
 struct bfad_debugfs_entry {
         const char *name;
-        mode_t  mode;
+        umode_t mode;
         const struct file_operations *fops;
 };
 
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index d1e697190970..1a44b45e7bef 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -2177,7 +2177,7 @@ static int bnx2i_nl_set_path(struct Scsi_Host *shost, struct iscsi_path *params)
         return 0;
 }
 
-static mode_t bnx2i_attr_is_visible(int param_type, int param)
+static umode_t bnx2i_attr_is_visible(int param_type, int param)
 {
         switch (param_type) {
         case ISCSI_HOST_PARAM:
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 1d25a87aa47b..c5360ffb4bed 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -2575,7 +2575,7 @@ void cxgbi_iscsi_cleanup(struct iscsi_transport *itp,
 }
 EXPORT_SYMBOL_GPL(cxgbi_iscsi_cleanup);
 
-mode_t cxgbi_attr_is_visible(int param_type, int param)
+umode_t cxgbi_attr_is_visible(int param_type, int param)
 {
         switch (param_type) {
         case ISCSI_HOST_PARAM:
diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h
index 20c88279c7a6..80fa99b3d384 100644
--- a/drivers/scsi/cxgbi/libcxgbi.h
+++ b/drivers/scsi/cxgbi/libcxgbi.h
@@ -709,7 +709,7 @@ int cxgbi_conn_xmit_pdu(struct iscsi_task *);
 
 void cxgbi_cleanup_task(struct iscsi_task *task);
 
-mode_t cxgbi_attr_is_visible(int param_type, int param);
+umode_t cxgbi_attr_is_visible(int param_type, int param);
 void cxgbi_get_conn_stats(struct iscsi_cls_conn *, struct iscsi_stats *);
 int cxgbi_set_conn_param(struct iscsi_cls_conn *,
                         enum iscsi_param, char *, int);
diff --git a/drivers/scsi/iscsi_boot_sysfs.c b/drivers/scsi/iscsi_boot_sysfs.c
index 89700cbca16e..14c1c8f6a95e 100644
--- a/drivers/scsi/iscsi_boot_sysfs.c
+++ b/drivers/scsi/iscsi_boot_sysfs.c
@@ -112,7 +112,7 @@ static struct attribute *target_attrs[] = {
         NULL
 };
 
-static mode_t iscsi_boot_tgt_attr_is_visible(struct kobject *kobj,
+static umode_t iscsi_boot_tgt_attr_is_visible(struct kobject *kobj,
                                              struct attribute *attr, int i)
 {
         struct iscsi_boot_kobj *boot_kobj =
@@ -193,7 +193,7 @@ static struct attribute *ethernet_attrs[] = {
         NULL
 };
 
-static mode_t iscsi_boot_eth_attr_is_visible(struct kobject *kobj,
+static umode_t iscsi_boot_eth_attr_is_visible(struct kobject *kobj,
                                              struct attribute *attr, int i)
 {
         struct iscsi_boot_kobj *boot_kobj =
@@ -265,7 +265,7 @@ static struct attribute *initiator_attrs[] = {
         NULL
 };
 
-static mode_t iscsi_boot_ini_attr_is_visible(struct kobject *kobj,
+static umode_t iscsi_boot_ini_attr_is_visible(struct kobject *kobj,
                                              struct attribute *attr, int i)
 {
         struct iscsi_boot_kobj *boot_kobj =
@@ -306,7 +306,7 @@ iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset,
                        struct attribute_group *attr_group,
                        const char *name, int index, void *data,
                        ssize_t (*show) (void *data, int type, char *buf),
-                       mode_t (*is_visible) (void *data, int type),
+                       umode_t (*is_visible) (void *data, int type),
                        void (*release) (void *data))
 {
         struct iscsi_boot_kobj *boot_kobj;
@@ -369,7 +369,7 @@ struct iscsi_boot_kobj *
 iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index,
                          void *data,
                          ssize_t (*show) (void *data, int type, char *buf),
-                         mode_t (*is_visible) (void *data, int type),
+                         umode_t (*is_visible) (void *data, int type),
                          void (*release) (void *data))
 {
         return iscsi_boot_create_kobj(boot_kset, &iscsi_boot_target_attr_group,
@@ -394,7 +394,7 @@ struct iscsi_boot_kobj *
 iscsi_boot_create_initiator(struct iscsi_boot_kset *boot_kset, int index,
                             void *data,
                             ssize_t (*show) (void *data, int type, char *buf),
-                            mode_t (*is_visible) (void *data, int type),
+                            umode_t (*is_visible) (void *data, int type),
                             void (*release) (void *data))
 {
         return iscsi_boot_create_kobj(boot_kset,
@@ -420,7 +420,7 @@ struct iscsi_boot_kobj *
 iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index,
                            void *data,
                            ssize_t (*show) (void *data, int type, char *buf),
-                           mode_t (*is_visible) (void *data, int type),
+                           umode_t (*is_visible) (void *data, int type),
                            void (*release) (void *data))
 {
         return iscsi_boot_create_kobj(boot_kset,
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 7c34d8e7cc75..db47158e0dde 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -873,7 +873,7 @@ static void iscsi_sw_tcp_session_destroy(struct iscsi_cls_session *cls_session)
         iscsi_host_free(shost);
 }
 
-static mode_t iscsi_sw_tcp_attr_is_visible(int param_type, int param)
+static umode_t iscsi_sw_tcp_attr_is_visible(int param_type, int param)
 {
         switch (param_type) {
         case ISCSI_HOST_PARAM:
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 4169c8baa112..78bf700b365f 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -128,7 +128,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
 static int qla4xxx_slave_alloc(struct scsi_device *device);
 static int qla4xxx_slave_configure(struct scsi_device *device);
 static void qla4xxx_slave_destroy(struct scsi_device *sdev);
-static mode_t ql4_attr_is_visible(int param_type, int param);
+static umode_t ql4_attr_is_visible(int param_type, int param);
 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
 
 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
@@ -197,7 +197,7 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
 
 static struct scsi_transport_template *qla4xxx_scsi_transport;
 
-static mode_t ql4_attr_is_visible(int param_type, int param)
+static umode_t ql4_attr_is_visible(int param_type, int param)
 {
         switch (param_type) {
         case ISCSI_HOST_PARAM:
@@ -3039,7 +3039,7 @@ static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
         return rc;
 }
 
-static mode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
+static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
 {
         int rc;
 
@@ -3073,7 +3073,7 @@ static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
         return rc;
 }
 
-static mode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
+static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
 {
         int rc;
 
@@ -3160,7 +3160,7 @@ static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
         return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
 }
 
-static mode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
+static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
 {
         int rc;
 
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 96029e6d027f..e8447fbc31f3 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -328,7 +328,7 @@ iscsi_iface_net_attr(iface, vlan_enabled, ISCSI_NET_PARAM_VLAN_ENABLED);
 iscsi_iface_net_attr(iface, mtu, ISCSI_NET_PARAM_MTU);
 iscsi_iface_net_attr(iface, port, ISCSI_NET_PARAM_PORT);
 
-static mode_t iscsi_iface_attr_is_visible(struct kobject *kobj,
+static umode_t iscsi_iface_attr_is_visible(struct kobject *kobj,
                                           struct attribute *attr, int i)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
@@ -2199,7 +2199,7 @@ static struct attribute *iscsi_conn_attrs[] = {
         NULL,
 };
 
-static mode_t iscsi_conn_attr_is_visible(struct kobject *kobj,
+static umode_t iscsi_conn_attr_is_visible(struct kobject *kobj,
                                          struct attribute *attr, int i)
 {
         struct device *cdev = container_of(kobj, struct device, kobj);
@@ -2370,7 +2370,7 @@ static struct attribute *iscsi_session_attrs[] = {
         NULL,
 };
 
-static mode_t iscsi_session_attr_is_visible(struct kobject *kobj,
+static umode_t iscsi_session_attr_is_visible(struct kobject *kobj,
                                             struct attribute *attr, int i)
 {
         struct device *cdev = container_of(kobj, struct device, kobj);
@@ -2468,7 +2468,7 @@ static struct attribute *iscsi_host_attrs[] = {
         NULL,
 };
 
-static mode_t iscsi_host_attr_is_visible(struct kobject *kobj,
+static umode_t iscsi_host_attr_is_visible(struct kobject *kobj,
                                          struct attribute *attr, int i)
 {
         struct device *cdev = container_of(kobj, struct device, kobj);
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index 5fbeadd96819..a2715c31e754 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -1434,7 +1434,7 @@ static int spi_host_configure(struct transport_container *tc,
         (si->f->show_##name ? S_IRUGO : 0) | \
         (si->f->set_##name ? S_IWUSR : 0)
 
-static mode_t target_attribute_is_visible(struct kobject *kobj,
+static umode_t target_attribute_is_visible(struct kobject *kobj,
                                           struct attribute *attr, int i)
 {
         struct device *cdev = container_of(kobj, struct device, kobj);
diff --git a/drivers/scsi/scsicam.c b/drivers/scsi/scsicam.c
index 6803b1e26ecc..92d24d6dcb39 100644
--- a/drivers/scsi/scsicam.c
+++ b/drivers/scsi/scsicam.c
@@ -16,7 +16,6 @@
 #include <linux/genhd.h>
 #include <linux/kernel.h>
 #include <linux/blkdev.h>
-#include <linux/buffer_head.h>
 #include <asm/unaligned.h>
 
 #include <scsi/scsicam.h>
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 441a1c5b8974..02d99982a74d 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -2325,16 +2325,15 @@ static struct sg_proc_leaf sg_proc_leaf_arr[] = {
 static int
 sg_proc_init(void)
 {
-        int k, mask;
         int num_leaves = ARRAY_SIZE(sg_proc_leaf_arr);
-        struct sg_proc_leaf * leaf;
+        int k;
 
         sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL);
         if (!sg_proc_sgp)
                 return 1;
         for (k = 0; k < num_leaves; ++k) {
-                leaf = &sg_proc_leaf_arr[k];
-                mask = leaf->fops->write ? S_IRUGO | S_IWUSR : S_IRUGO;
+                struct sg_proc_leaf *leaf = &sg_proc_leaf_arr[k];
+                umode_t mask = leaf->fops->write ? S_IRUGO | S_IWUSR : S_IRUGO;
                 proc_create(leaf->name, mask, sg_proc_sgp, leaf->fops);
         }
         return 0;
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index a6a4a4e1f183..797e65cd03e8 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -838,14 +838,14 @@ static struct attribute *ad7192_attributes[] = {
         NULL
 };
 
-static mode_t ad7192_attr_is_visible(struct kobject *kobj,
+static umode_t ad7192_attr_is_visible(struct kobject *kobj,
                                      struct attribute *attr, int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
         struct iio_dev *indio_dev = dev_get_drvdata(dev);
         struct ad7192_state *st = iio_priv(indio_dev);
 
-        mode_t mode = attr->mode;
+        umode_t mode = attr->mode;
 
         if ((st->devid != ID_AD7195) &&
                 (attr == &iio_dev_attr_ac_excitation_en.dev_attr.attr))
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 54423ab196fe..e3ecd3d2ef3a 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -205,14 +205,14 @@ static struct attribute *ad7606_attributes[] = {
         NULL,
 };
 
-static mode_t ad7606_attr_is_visible(struct kobject *kobj,
+static umode_t ad7606_attr_is_visible(struct kobject *kobj,
                                      struct attribute *attr, int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
         struct iio_dev *indio_dev = dev_get_drvdata(dev);
         struct ad7606_state *st = iio_priv(indio_dev);
 
-        mode_t mode = attr->mode;
+        umode_t mode = attr->mode;
 
         if (!(gpio_is_valid(st->pdata->gpio_os0) &&
               gpio_is_valid(st->pdata->gpio_os1) &&
diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c
index ac3bc5f52dcc..ec701e939b6b 100644
--- a/drivers/staging/iio/dac/ad5446.c
+++ b/drivers/staging/iio/dac/ad5446.c
@@ -197,14 +197,14 @@ static struct attribute *ad5446_attributes[] = {
         NULL,
 };
 
-static mode_t ad5446_attr_is_visible(struct kobject *kobj,
+static umode_t ad5446_attr_is_visible(struct kobject *kobj,
                                      struct attribute *attr, int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
         struct iio_dev *indio_dev = dev_get_drvdata(dev);
         struct ad5446_state *st = iio_priv(indio_dev);
 
-        mode_t mode = attr->mode;
+        umode_t mode = attr->mode;
 
         if (!st->chip_info->store_pwr_down &&
                 (attr == &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr ||
diff --git a/drivers/staging/iio/dds/ad9834.c b/drivers/staging/iio/dds/ad9834.c
index 2b31e3524826..51fda6f69815 100644
--- a/drivers/staging/iio/dds/ad9834.c
+++ b/drivers/staging/iio/dds/ad9834.c
@@ -281,14 +281,14 @@ static struct attribute *ad9834_attributes[] = {
         NULL,
 };
 
-static mode_t ad9834_attr_is_visible(struct kobject *kobj,
+static umode_t ad9834_attr_is_visible(struct kobject *kobj,
                                      struct attribute *attr, int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
         struct iio_dev *indio_dev = dev_get_drvdata(dev);
         struct ad9834_state *st = iio_priv(indio_dev);
 
-        mode_t mode = attr->mode;
+        umode_t mode = attr->mode;
 
         if (((st->devid == ID_AD9833) || (st->devid == ID_AD9837)) &&
                 ((attr == &iio_dev_attr_dds0_out1_enable.dev_attr.attr) ||
diff --git a/drivers/staging/pohmelfs/dir.c b/drivers/staging/pohmelfs/dir.c
index 7598e77672a5..2ee4491b7136 100644
--- a/drivers/staging/pohmelfs/dir.c
+++ b/drivers/staging/pohmelfs/dir.c
@@ -590,13 +590,13 @@ out:
  * during writeback for given inode.
  */
 struct pohmelfs_inode *pohmelfs_create_entry_local(struct pohmelfs_sb *psb,
-        struct pohmelfs_inode *parent, struct qstr *str, u64 start, int mode)
+        struct pohmelfs_inode *parent, struct qstr *str, u64 start, umode_t mode)
 {
         struct pohmelfs_inode *npi;
         int err = -ENOMEM;
         struct netfs_inode_info info;
 
-        dprintk("%s: name: '%s', mode: %o, start: %llu.\n",
+        dprintk("%s: name: '%s', mode: %ho, start: %llu.\n",
                         __func__, str->name, mode, start);
 
         info.mode = mode;
@@ -630,7 +630,8 @@ err_out_unlock:
 /*
  * Create local object and bind it to dentry.
  */
-static int pohmelfs_create_entry(struct inode *dir, struct dentry *dentry, u64 start, int mode)
+static int pohmelfs_create_entry(struct inode *dir, struct dentry *dentry,
+                                 u64 start, umode_t mode)
 {
         struct pohmelfs_sb *psb = POHMELFS_SB(dir->i_sb);
         struct pohmelfs_inode *npi, *parent;
@@ -661,13 +662,13 @@ static int pohmelfs_create_entry(struct inode *dir, struct dentry *dentry, u64 s
 /*
  * VFS create and mkdir callbacks.
  */
-static int pohmelfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int pohmelfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         return pohmelfs_create_entry(dir, dentry, 0, mode);
 }
 
-static int pohmelfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int pohmelfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int err;
 
diff --git a/drivers/staging/pohmelfs/inode.c b/drivers/staging/pohmelfs/inode.c
index 7a1955583b7d..807e3f324113 100644
--- a/drivers/staging/pohmelfs/inode.c
+++ b/drivers/staging/pohmelfs/inode.c
@@ -830,7 +830,6 @@ const struct address_space_operations pohmelfs_aops = {
 static void pohmelfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(pohmelfs_inode_cache, POHMELFS_I(inode));
 }
 
@@ -1370,9 +1369,9 @@ static int pohmelfs_statfs(struct dentry *dentry, struct kstatfs *buf)
         return 0;
 }
 
-static int pohmelfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int pohmelfs_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct pohmelfs_sb *psb = POHMELFS_SB(vfs->mnt_sb);
+        struct pohmelfs_sb *psb = POHMELFS_SB(root->d_sb);
 
         seq_printf(seq, ",idx=%u", psb->idx);
         seq_printf(seq, ",trans_scan_timeout=%u", jiffies_to_msecs(psb->trans_scan_timeout));
@@ -1760,11 +1759,11 @@ err_out_exit:
         return err;
 }
 
-static int pohmelfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
+static int pohmelfs_show_stats(struct seq_file *m, struct dentry *root)
 {
         struct netfs_state *st;
         struct pohmelfs_ctl *ctl;
-        struct pohmelfs_sb *psb = POHMELFS_SB(mnt->mnt_sb);
+        struct pohmelfs_sb *psb = POHMELFS_SB(root->d_sb);
         struct pohmelfs_config *c;
 
         mutex_lock(&psb->state_lock);
diff --git a/drivers/staging/pohmelfs/netfs.h b/drivers/staging/pohmelfs/netfs.h
index 985b6b755d5d..f26894f2a57f 100644
--- a/drivers/staging/pohmelfs/netfs.h
+++ b/drivers/staging/pohmelfs/netfs.h
@@ -776,7 +776,7 @@ struct pohmelfs_name *pohmelfs_search_hash(struct pohmelfs_inode *pi, u32 hash);
 void pohmelfs_inode_del_inode(struct pohmelfs_sb *psb, struct pohmelfs_inode *pi);
 
 struct pohmelfs_inode *pohmelfs_create_entry_local(struct pohmelfs_sb *psb,
-        struct pohmelfs_inode *parent, struct qstr *str, u64 start, int mode);
+        struct pohmelfs_inode *parent, struct qstr *str, u64 start, umode_t mode);
 
 int pohmelfs_write_create_inode(struct pohmelfs_inode *pi);
 
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 43db715f1502..7867b7c4538e 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -32,7 +32,6 @@
 #include <linux/module.h>
 #include <linux/suspend.h>
 #include <linux/writeback.h>
-#include <linux/buffer_head.h>          /* for fsync_bdev() */
 #include <linux/swap.h>
 #include <linux/spinlock.h>
 #include <linux/vt_kern.h>
@@ -41,6 +40,7 @@
 #include <linux/oom.h>
 #include <linux/slab.h>
 #include <linux/input.h>
+#include <linux/uaccess.h>
 
 #include <asm/ptrace.h>
 #include <asm/irq_regs.h>
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 05085beb83db..3fdebd306b94 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3267,7 +3267,7 @@ void __init console_init(void)
         }
 }
 
-static char *tty_devnode(struct device *dev, mode_t *mode)
+static char *tty_devnode(struct device *dev, umode_t *mode)
 {
         if (!mode)
                 return NULL;
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 81ef2e207a8d..a68c1a63dc65 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -1045,7 +1045,7 @@ static const struct file_operations usblp_fops = {
         .llseek =       noop_llseek,
 };
 
-static char *usblp_devnode(struct device *dev, mode_t *mode)
+static char *usblp_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
 }
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 99458c843d60..d95760de9e8b 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -66,7 +66,7 @@ static struct usb_class {
         struct class *class;
 } *usb_class;
 
-static char *usb_devnode(struct device *dev, mode_t *mode)
+static char *usb_devnode(struct device *dev, umode_t *mode)
 {
         struct usb_class_driver *drv;
 
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 2278dad886e2..9e186f3da839 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -65,7 +65,7 @@ static umode_t devmode = USBFS_DEFAULT_DEVMODE;
 static umode_t busmode = USBFS_DEFAULT_BUSMODE;
 static umode_t listmode = USBFS_DEFAULT_LISTMODE;
 
-static int usbfs_show_options(struct seq_file *seq, struct vfsmount *mnt)
+static int usbfs_show_options(struct seq_file *seq, struct dentry *root)
 {
         if (devuid != 0)
                 seq_printf(seq, ",devuid=%u", devuid);
@@ -264,21 +264,19 @@ static int remount(struct super_block *sb, int *flags, char *data)
                 return -EINVAL;
         }
 
-        if (usbfs_mount && usbfs_mount->mnt_sb)
+        if (usbfs_mount)
                 update_sb(usbfs_mount->mnt_sb);
 
         return 0;
 }
 
-static struct inode *usbfs_get_inode (struct super_block *sb, int mode, dev_t dev)
+static struct inode *usbfs_get_inode (struct super_block *sb, umode_t mode, dev_t dev)
 {
         struct inode *inode = new_inode(sb);
 
         if (inode) {
                 inode->i_ino = get_next_ino();
-                inode->i_mode = mode;
-                inode->i_uid = current_fsuid();
-                inode->i_gid = current_fsgid();
+                inode_init_owner(inode, NULL, mode);
                 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
                 switch (mode & S_IFMT) {
                 default:
@@ -300,7 +298,7 @@ static struct inode *usbfs_get_inode (struct super_block *sb, int mode, dev_t de
 }
 
 /* SMP-safe */
-static int usbfs_mknod (struct inode *dir, struct dentry *dentry, int mode,
+static int usbfs_mknod (struct inode *dir, struct dentry *dentry, umode_t mode,
                         dev_t dev)
 {
         struct inode *inode = usbfs_get_inode(dir->i_sb, mode, dev);
@@ -317,7 +315,7 @@ static int usbfs_mknod (struct inode *dir, struct dentry *dentry, int mode,
         return error;
 }
 
-static int usbfs_mkdir (struct inode *dir, struct dentry *dentry, int mode)
+static int usbfs_mkdir (struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int res;
 
@@ -328,7 +326,7 @@ static int usbfs_mkdir (struct inode *dir, struct dentry *dentry, int mode)
         return res;
 }
 
-static int usbfs_create (struct inode *dir, struct dentry *dentry, int mode)
+static int usbfs_create (struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         mode = (mode & S_IALLUGO) | S_IFREG;
         return usbfs_mknod (dir, dentry, mode, 0);
@@ -489,7 +487,7 @@ static int usbfs_fill_super(struct super_block *sb, void *data, int silent)
  *
  * This function handles both regular files and directories.
  */
-static int fs_create_by_name (const char *name, mode_t mode,
+static int fs_create_by_name (const char *name, umode_t mode,
                               struct dentry *parent, struct dentry **dentry)
 {
         int error = 0;
@@ -500,9 +498,8 @@ static int fs_create_by_name (const char *name, mode_t mode,
          * have around.
          */
         if (!parent ) {
-                if (usbfs_mount && usbfs_mount->mnt_sb) {
-                        parent = usbfs_mount->mnt_sb->s_root;
-                }
+                if (usbfs_mount)
+                        parent = usbfs_mount->mnt_root;
         }
 
         if (!parent) {
@@ -514,7 +511,7 @@ static int fs_create_by_name (const char *name, mode_t mode,
         mutex_lock(&parent->d_inode->i_mutex);
         *dentry = lookup_one_len(name, parent, strlen(name));
         if (!IS_ERR(*dentry)) {
-                if ((mode & S_IFMT) == S_IFDIR)
+                if (S_ISDIR(mode))
                         error = usbfs_mkdir (parent->d_inode, *dentry, mode);
                 else 
                         error = usbfs_create (parent->d_inode, *dentry, mode);
@@ -525,7 +522,7 @@ static int fs_create_by_name (const char *name, mode_t mode,
         return error;
 }
 
-static struct dentry *fs_create_file (const char *name, mode_t mode,
+static struct dentry *fs_create_file (const char *name, umode_t mode,
                                       struct dentry *parent, void *data,
                                       const struct file_operations *fops,
                                       uid_t uid, gid_t gid)
@@ -608,7 +605,7 @@ static int create_special_files (void)
 
         ignore_mount = 0;
 
-        parent = usbfs_mount->mnt_sb->s_root;
+        parent = usbfs_mount->mnt_root;
         devices_usbfs_dentry = fs_create_file ("devices",
                                                listmode | S_IFREG, parent,
                                                NULL, &usbfs_devices_fops,
@@ -662,7 +659,7 @@ static void usbfs_add_bus(struct usb_bus *bus)
 
         sprintf (name, "%03d", bus->busnum);
 
-        parent = usbfs_mount->mnt_sb->s_root;
+        parent = usbfs_mount->mnt_root;
         bus->usbfs_dentry = fs_create_file (name, busmode | S_IFDIR, parent,
                                             bus, NULL, busuid, busgid);
         if (bus->usbfs_dentry == NULL) {
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 662c0cf3a3e1..9e491ca2e5c4 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -642,7 +642,7 @@ static struct attribute *dev_string_attrs[] = {
         NULL
 };
 
-static mode_t dev_string_attrs_are_visible(struct kobject *kobj,
+static umode_t dev_string_attrs_are_visible(struct kobject *kobj,
                 struct attribute *a, int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
@@ -877,7 +877,7 @@ static struct attribute *intf_assoc_attrs[] = {
         NULL,
 };
 
-static mode_t intf_assoc_attrs_are_visible(struct kobject *kobj,
+static umode_t intf_assoc_attrs_are_visible(struct kobject *kobj,
                 struct attribute *a, int n)
 {
         struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 73cd90012ec5..1382c90d0834 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -326,7 +326,7 @@ static const struct dev_pm_ops usb_device_pm_ops = {
 #endif  /* CONFIG_PM */
 
 
-static char *usb_devnode(struct device *dev, mode_t *mode)
+static char *usb_devnode(struct device *dev, umode_t *mode)
 {
         struct usb_device *usb_dev;
 
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 7676b5b7e171..2453a39b4794 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -734,7 +734,7 @@ static const struct file_operations iowarrior_fops = {
         .llseek = noop_llseek,
 };
 
-static char *iowarrior_devnode(struct device *dev, mode_t *mode)
+static char *iowarrior_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
 }
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 16937da31cd8..575222042767 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -269,7 +269,7 @@ static const struct file_operations tower_fops = {
         .llseek =       tower_llseek,
 };
 
-static char *legousbtower_devnode(struct device *dev, mode_t *mode)
+static char *legousbtower_devnode(struct device *dev, umode_t *mode)
 {
         return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
 }
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index 410ffd6ceb5f..dc95a252523d 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -54,9 +54,9 @@ extern struct kmem_cache *v9fs_inode_cache;
 
 struct inode *v9fs_alloc_inode(struct super_block *sb);
 void v9fs_destroy_inode(struct inode *inode);
-struct inode *v9fs_get_inode(struct super_block *sb, int mode, dev_t);
+struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t);
 int v9fs_init_inode(struct v9fs_session_info *v9ses,
-                    struct inode *inode, int mode, dev_t);
+                    struct inode *inode, umode_t mode, dev_t);
 void v9fs_evict_inode(struct inode *inode);
 ino_t v9fs_qid2ino(struct p9_qid *qid);
 void v9fs_stat2inode(struct p9_wstat *, struct inode *, struct super_block *);
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 879ed8851737..e0f20de6aa2b 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -59,15 +59,13 @@ static const struct inode_operations v9fs_symlink_inode_operations;
  *
  */
 
-static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
+static u32 unixmode2p9mode(struct v9fs_session_info *v9ses, umode_t mode)
 {
         int res;
         res = mode & 0777;
         if (S_ISDIR(mode))
                 res |= P9_DMDIR;
         if (v9fs_proto_dotu(v9ses)) {
-                if (S_ISLNK(mode))
-                        res |= P9_DMSYMLINK;
                 if (v9ses->nodev == 0) {
                         if (S_ISSOCK(mode))
                                 res |= P9_DMSOCKET;
@@ -85,10 +83,7 @@ static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
                         res |= P9_DMSETGID;
                 if ((mode & S_ISVTX) == S_ISVTX)
                         res |= P9_DMSETVTX;
-                if ((mode & P9_DMLINK))
-                        res |= P9_DMLINK;
         }
-
         return res;
 }
 
@@ -99,11 +94,11 @@ static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
  * @rdev: major number, minor number in case of device files.
  *
  */
-static int p9mode2unixmode(struct v9fs_session_info *v9ses,
-                           struct p9_wstat *stat, dev_t *rdev)
+static umode_t p9mode2unixmode(struct v9fs_session_info *v9ses,
+                               struct p9_wstat *stat, dev_t *rdev)
 {
         int res;
-        int mode = stat->mode;
+        u32 mode = stat->mode;
 
         res = mode & S_IALLUGO;
         *rdev = 0;
@@ -251,7 +246,6 @@ struct inode *v9fs_alloc_inode(struct super_block *sb)
 static void v9fs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(v9fs_inode_cache, V9FS_I(inode));
 }
 
@@ -261,7 +255,7 @@ void v9fs_destroy_inode(struct inode *inode)
 }
 
 int v9fs_init_inode(struct v9fs_session_info *v9ses,
-                    struct inode *inode, int mode, dev_t rdev)
+                    struct inode *inode, umode_t mode, dev_t rdev)
 {
         int err = 0;
 
@@ -335,7 +329,7 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
 
                 break;
         default:
-                P9_DPRINTK(P9_DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n",
+                P9_DPRINTK(P9_DEBUG_ERROR, "BAD mode 0x%hx S_IFMT 0x%x\n",
                            mode, mode & S_IFMT);
                 err = -EINVAL;
                 goto error;
@@ -352,13 +346,13 @@ error:
  *
  */
 
-struct inode *v9fs_get_inode(struct super_block *sb, int mode, dev_t rdev)
+struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
 {
         int err;
         struct inode *inode;
         struct v9fs_session_info *v9ses = sb->s_fs_info;
 
-        P9_DPRINTK(P9_DEBUG_VFS, "super block: %p mode: %o\n", sb, mode);
+        P9_DPRINTK(P9_DEBUG_VFS, "super block: %p mode: %ho\n", sb, mode);
 
         inode = new_inode(sb);
         if (!inode) {
@@ -492,7 +486,8 @@ static struct inode *v9fs_qid_iget(struct super_block *sb,
                                    int new)
 {
         dev_t rdev;
-        int retval, umode;
+        int retval;
+        umode_t umode;
         unsigned long i_ino;
         struct inode *inode;
         struct v9fs_session_info *v9ses = sb->s_fs_info;
@@ -703,7 +698,7 @@ error:
  */
 
 static int
-v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
+v9fs_vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         int err;
@@ -786,7 +781,7 @@ error:
  *
  */
 
-static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int err;
         u32 perm;
@@ -1131,7 +1126,7 @@ void
 v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
         struct super_block *sb)
 {
-        mode_t mode;
+        umode_t mode;
         char ext[32];
         char tag_name[14];
         unsigned int i_nlink;
@@ -1304,9 +1299,8 @@ v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
  */
 
 static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
-        int mode, const char *extension)
+        u32 perm, const char *extension)
 {
-        u32 perm;
         struct p9_fid *fid;
         struct v9fs_session_info *v9ses;
 
@@ -1316,7 +1310,6 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
                 return -EPERM;
         }
 
-        perm = unixmode2p9mode(v9ses, mode);
         fid = v9fs_create(v9ses, dir, dentry, (char *) extension, perm,
                                                                 P9_OREAD);
         if (IS_ERR(fid))
@@ -1343,7 +1336,7 @@ v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
         P9_DPRINTK(P9_DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino,
                                         dentry->d_name.name, symname);
 
-        return v9fs_vfs_mkspecial(dir, dentry, S_IFLNK, symname);
+        return v9fs_vfs_mkspecial(dir, dentry, P9_DMSYMLINK, symname);
 }
 
 /**
@@ -1398,13 +1391,15 @@ clunk_fid:
  */
 
 static int
-v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
+v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
+        struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
         int retval;
         char *name;
+        u32 perm;
 
         P9_DPRINTK(P9_DEBUG_VFS,
-                " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
+                " %lu,%s mode: %hx MAJOR: %u MINOR: %u\n", dir->i_ino,
                 dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
 
         if (!new_valid_dev(rdev))
@@ -1427,7 +1422,8 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
                 return -EINVAL;
         }
 
-        retval = v9fs_vfs_mkspecial(dir, dentry, mode, name);
+        perm = unixmode2p9mode(v9ses, mode);
+        retval = v9fs_vfs_mkspecial(dir, dentry, perm, name);
         __putname(name);
 
         return retval;
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 0b5745e21946..8ef152ac6a16 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -48,7 +48,7 @@
 #include "acl.h"
 
 static int
-v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
+v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
                     dev_t rdev);
 
 /**
@@ -253,7 +253,7 @@ int v9fs_open_to_dotl_flags(int flags)
  */
 
 static int
-v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
+v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
                 struct nameidata *nd)
 {
         int err = 0;
@@ -284,7 +284,7 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
 
         name = (char *) dentry->d_name.name;
         P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_create_dotl: name:%s flags:0x%x "
-                        "mode:0x%x\n", name, flags, omode);
+                        "mode:0x%hx\n", name, flags, omode);
 
         dfid = v9fs_fid_lookup(dentry->d_parent);
         if (IS_ERR(dfid)) {
@@ -395,7 +395,7 @@ err_clunk_old_fid:
  */
 
 static int v9fs_vfs_mkdir_dotl(struct inode *dir,
-                               struct dentry *dentry, int omode)
+                               struct dentry *dentry, umode_t omode)
 {
         int err;
         struct v9fs_session_info *v9ses;
@@ -594,7 +594,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
 void
 v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
 {
-        mode_t mode;
+        umode_t mode;
         struct v9fs_inode *v9inode = V9FS_I(inode);
 
         if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) {
@@ -799,7 +799,7 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
  *
  */
 static int
-v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
+v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
                 dev_t rdev)
 {
         int err;
@@ -814,7 +814,7 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
         struct posix_acl *dacl = NULL, *pacl = NULL;
 
         P9_DPRINTK(P9_DEBUG_VFS,
-                " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
+                " %lu,%s mode: %hx MAJOR: %u MINOR: %u\n", dir->i_ino,
                 dentry->d_name.name, omode, MAJOR(rdev), MINOR(rdev));
 
         if (!new_valid_dev(rdev))
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index c70251d47ed1..f68ff65a32a5 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -117,7 +117,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
         struct inode *inode = NULL;
         struct dentry *root = NULL;
         struct v9fs_session_info *v9ses = NULL;
-        int mode = S_IRWXUGO | S_ISVTX;
+        umode_t mode = S_IRWXUGO | S_ISVTX;
         struct p9_fid *fid;
         int retval = 0;
 
diff --git a/fs/Kconfig b/fs/Kconfig
index 5f4c45d4aa10..30145d886bc2 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -266,14 +266,6 @@ source "fs/9p/Kconfig"
 
 endif # NETWORK_FILESYSTEMS
 
-if BLOCK
-menu "Partition Types"
-
-source "fs/partitions/Kconfig"
-
-endmenu
-endif
-
 source "fs/nls/Kconfig"
 source "fs/dlm/Kconfig"
 
diff --git a/fs/Makefile b/fs/Makefile
index d2c3353d5477..93804d4d66e1 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -19,6 +19,8 @@ else
 obj-y +=        no-block.o
 endif
 
+obj-$(CONFIG_PROC_FS) += proc_namespace.o
+
 obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o
 obj-y                           += notify/
 obj-$(CONFIG_EPOLL)             += eventpoll.o
@@ -52,7 +54,6 @@ obj-$(CONFIG_FHANDLE)		+= fhandle.o
 obj-y                           += quota/
 
 obj-$(CONFIG_PROC_FS)           += proc/
-obj-y                           += partitions/
 obj-$(CONFIG_SYSFS)             += sysfs/
 obj-$(CONFIG_CONFIGFS_FS)       += configfs/
 obj-y                           += devpts/
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index c8bf36a1996a..8e3b36ace305 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -126,9 +126,9 @@ 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)
+static int adfs_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct adfs_sb_info *asb = ADFS_SB(mnt->mnt_sb);
+        struct adfs_sb_info *asb = ADFS_SB(root->d_sb);
 
         if (asb->s_uid != 0)
                 seq_printf(seq, ",uid=%u", asb->s_uid);
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index c2b9c79eb64e..45a0ce45d7b4 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -136,7 +136,7 @@ extern int	affs_remove_header(struct dentry *dentry);
 extern u32      affs_checksum_block(struct super_block *sb, struct buffer_head *bh);
 extern void     affs_fix_checksum(struct super_block *sb, struct buffer_head *bh);
 extern void     secs_to_datestamp(time_t secs, struct affs_date *ds);
-extern mode_t   prot_to_mode(u32 prot);
+extern umode_t  prot_to_mode(u32 prot);
 extern void     mode_to_prot(struct inode *inode);
 extern void     affs_error(struct super_block *sb, const char *function, const char *fmt, ...);
 extern void     affs_warning(struct super_block *sb, const char *function, const char *fmt, ...);
@@ -156,8 +156,8 @@ extern void	affs_free_bitmap(struct super_block *sb);
 extern int      affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len);
 extern struct dentry *affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *);
 extern int      affs_unlink(struct inode *dir, struct dentry *dentry);
-extern int      affs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *);
-extern int      affs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+extern int      affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *);
+extern int      affs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 extern int      affs_rmdir(struct inode *dir, struct dentry *dentry);
 extern int      affs_link(struct dentry *olddentry, struct inode *dir,
                           struct dentry *dentry);
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index de37ec842340..52a6407682e6 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -390,10 +390,10 @@ secs_to_datestamp(time_t secs, struct affs_date *ds)
         ds->ticks = cpu_to_be32(secs * 50);
 }
 
-mode_t
+umode_t
 prot_to_mode(u32 prot)
 {
-        int mode = 0;
+        umode_t mode = 0;
 
         if (!(prot & FIBF_NOWRITE))
                 mode |= S_IWUSR;
@@ -421,7 +421,7 @@ void
 mode_to_prot(struct inode *inode)
 {
         u32 prot = AFFS_I(inode)->i_protect;
-        mode_t mode = inode->i_mode;
+        umode_t mode = inode->i_mode;
 
         if (!(mode & S_IXUSR))
                 prot |= FIBF_NOEXECUTE;
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index 780a11dc6318..47806940aac0 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -255,13 +255,13 @@ affs_unlink(struct inode *dir, struct dentry *dentry)
 }
 
 int
-affs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
+affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
 {
         struct super_block *sb = dir->i_sb;
         struct inode    *inode;
         int              error;
 
-        pr_debug("AFFS: create(%lu,\"%.*s\",0%o)\n",dir->i_ino,(int)dentry->d_name.len,
+        pr_debug("AFFS: create(%lu,\"%.*s\",0%ho)\n",dir->i_ino,(int)dentry->d_name.len,
                  dentry->d_name.name,mode);
 
         inode = affs_new_inode(dir);
@@ -285,12 +285,12 @@ affs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata
 }
 
 int
-affs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+affs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode            *inode;
         int                      error;
 
-        pr_debug("AFFS: mkdir(%lu,\"%.*s\",0%o)\n",dir->i_ino,
+        pr_debug("AFFS: mkdir(%lu,\"%.*s\",0%ho)\n",dir->i_ino,
                  (int)dentry->d_name.len,dentry->d_name.name,mode);
 
         inode = affs_new_inode(dir);
diff --git a/fs/affs/super.c b/fs/affs/super.c
index b31507d0f9b9..8ba73fed7964 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -98,7 +98,6 @@ static struct inode *affs_alloc_inode(struct super_block *sb)
 static void affs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(affs_inode_cachep, AFFS_I(inode));
 }
 
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 1b0b19550015..e22dc4b4a503 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -28,9 +28,9 @@ static int afs_d_delete(const struct dentry *dentry);
 static void afs_d_release(struct dentry *dentry);
 static int afs_lookup_filldir(void *_cookie, const char *name, int nlen,
                                   loff_t fpos, u64 ino, unsigned dtype);
-static int afs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                       struct nameidata *nd);
-static int afs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 static int afs_rmdir(struct inode *dir, struct dentry *dentry);
 static int afs_unlink(struct inode *dir, struct dentry *dentry);
 static int afs_link(struct dentry *from, struct inode *dir,
@@ -764,7 +764,7 @@ static void afs_d_release(struct dentry *dentry)
 /*
  * create a directory on an AFS filesystem
  */
-static int afs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct afs_file_status status;
         struct afs_callback cb;
@@ -777,7 +777,7 @@ static int afs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 
         dvnode = AFS_FS_I(dir);
 
-        _enter("{%x:%u},{%s},%o",
+        _enter("{%x:%u},{%s},%ho",
                dvnode->fid.vid, dvnode->fid.vnode, dentry->d_name.name, mode);
 
         ret = -ENAMETOOLONG;
@@ -948,7 +948,7 @@ error:
 /*
  * create a regular file on an AFS filesystem
  */
-static int afs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                       struct nameidata *nd)
 {
         struct afs_file_status status;
@@ -962,7 +962,7 @@ static int afs_create(struct inode *dir, struct dentry *dentry, int mode,
 
         dvnode = AFS_FS_I(dir);
 
-        _enter("{%x:%u},{%s},%o,",
+        _enter("{%x:%u},{%s},%ho,",
                dvnode->fid.vid, dvnode->fid.vnode, dentry->d_name.name, mode);
 
         ret = -ENAMETOOLONG;
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index aa59184151d0..8f4ce2658b7d 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -242,7 +242,7 @@ struct vfsmount *afs_d_automount(struct path *path)
 {
         struct vfsmount *newmnt;
 
-        _enter("{%s,%s}", path->mnt->mnt_devname, path->dentry->d_name.name);
+        _enter("{%s}", path->dentry->d_name.name);
 
         newmnt = afs_mntpt_do_automount(path->dentry);
         if (IS_ERR(newmnt))
@@ -252,7 +252,7 @@ struct vfsmount *afs_d_automount(struct path *path)
         mnt_set_expiry(newmnt, &afs_vfsmounts);
         queue_delayed_work(afs_wq, &afs_mntpt_expiry_timer,
                            afs_mntpt_expiry_timeout * HZ);
-        _leave(" = %p {%s}", newmnt, newmnt->mnt_devname);
+        _leave(" = %p", newmnt);
         return newmnt;
 }
 
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 356dcf0929e8..983ec59fc80d 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -495,7 +495,6 @@ static void afs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
         struct afs_vnode *vnode = AFS_FS_I(inode);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(afs_inode_cachep, vnode);
 }
 
diff --git a/fs/attr.c b/fs/attr.c
index 7ee7ba488313..95053ad8abcc 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -166,7 +166,7 @@ EXPORT_SYMBOL(setattr_copy);
 int notify_change(struct dentry * dentry, struct iattr * attr)
 {
         struct inode *inode = dentry->d_inode;
-        mode_t mode = inode->i_mode;
+        umode_t mode = inode->i_mode;
         int error;
         struct timespec now;
         unsigned int ia_valid = attr->ia_valid;
@@ -177,7 +177,7 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
         }
 
         if ((ia_valid & ATTR_MODE)) {
-                mode_t amode = attr->ia_mode;
+                umode_t amode = attr->ia_mode;
                 /* Flag setting protected by i_mutex */
                 if (is_sxid(amode))
                         inode->i_flags &= ~S_NOSEC;
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 326dc08d3e3f..5869d4e974a9 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -155,7 +155,7 @@ static inline int autofs4_ispending(struct dentry *dentry)
         return 0;
 }
 
-struct inode *autofs4_get_inode(struct super_block *, mode_t);
+struct inode *autofs4_get_inode(struct super_block *, umode_t);
 void autofs4_free_ino(struct autofs_info *);
 
 /* Expiration */
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 509fe1eb66ae..76741d8d7786 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -194,7 +194,7 @@ static int find_autofs_mount(const char *pathname,
                 return err;
         err = -ENOENT;
         while (path.dentry == path.mnt->mnt_root) {
-                if (path.mnt->mnt_sb->s_magic == AUTOFS_SUPER_MAGIC) {
+                if (path.dentry->d_sb->s_magic == AUTOFS_SUPER_MAGIC) {
                         if (test(&path, data)) {
                                 path_get(&path);
                                 if (!err) /* already found some */
@@ -212,7 +212,7 @@ static int find_autofs_mount(const char *pathname,
 
 static int test_by_dev(struct path *path, void *p)
 {
-        return path->mnt->mnt_sb->s_dev == *(dev_t *)p;
+        return path->dentry->d_sb->s_dev == *(dev_t *)p;
 }
 
 static int test_by_type(struct path *path, void *p)
@@ -538,11 +538,11 @@ static int autofs_dev_ioctl_ismountpoint(struct file *fp,
                         err = find_autofs_mount(name, &path, test_by_type, &type);
                 if (err)
                         goto out;
-                devid = new_encode_dev(path.mnt->mnt_sb->s_dev);
+                devid = new_encode_dev(path.dentry->d_sb->s_dev);
                 err = 0;
                 if (path.mnt->mnt_root == path.dentry) {
                         err = 1;
-                        magic = path.mnt->mnt_sb->s_magic;
+                        magic = path.dentry->d_sb->s_magic;
                 }
         } else {
                 dev_t dev = sbi->sb->s_dev;
@@ -556,7 +556,7 @@ static int autofs_dev_ioctl_ismountpoint(struct file *fp,
                 err = have_submounts(path.dentry);
 
                 if (follow_down_one(&path))
-                        magic = path.mnt->mnt_sb->s_magic;
+                        magic = path.dentry->d_sb->s_magic;
         }
 
         param->ismountpoint.out.devid = devid;
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 8179f1ab8175..2ba44c79d548 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -70,10 +70,10 @@ out_kill_sb:
         kill_litter_super(sb);
 }
 
-static int autofs4_show_options(struct seq_file *m, struct vfsmount *mnt)
+static int autofs4_show_options(struct seq_file *m, struct dentry *root)
 {
-        struct autofs_sb_info *sbi = autofs4_sbi(mnt->mnt_sb);
-        struct inode *root_inode = mnt->mnt_sb->s_root->d_inode;
+        struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
+        struct inode *root_inode = root->d_sb->s_root->d_inode;
 
         if (!sbi)
                 return 0;
@@ -326,7 +326,7 @@ fail_unlock:
         return -EINVAL;
 }
 
-struct inode *autofs4_get_inode(struct super_block *sb, mode_t mode)
+struct inode *autofs4_get_inode(struct super_block *sb, umode_t mode)
 {
         struct inode *inode = new_inode(sb);
 
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index f55ae23b137e..75e5f1c8e028 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -26,7 +26,7 @@
 static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
 static int autofs4_dir_unlink(struct inode *,struct dentry *);
 static int autofs4_dir_rmdir(struct inode *,struct dentry *);
-static int autofs4_dir_mkdir(struct inode *,struct dentry *,int);
+static int autofs4_dir_mkdir(struct inode *,struct dentry *,umode_t);
 static long autofs4_root_ioctl(struct file *,unsigned int,unsigned long);
 #ifdef CONFIG_COMPAT
 static long autofs4_root_compat_ioctl(struct file *,unsigned int,unsigned long);
@@ -699,7 +699,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
         return 0;
 }
 
-static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
         struct autofs_info *ino = autofs4_dentry_ino(dentry);
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 9205cf25f1c6..22e9a78872ff 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -173,7 +173,7 @@ static const struct file_operations bad_file_ops =
 };
 
 static int bad_inode_create (struct inode *dir, struct dentry *dentry,
-                int mode, struct nameidata *nd)
+                umode_t mode, struct nameidata *nd)
 {
         return -EIO;
 }
@@ -202,7 +202,7 @@ static int bad_inode_symlink (struct inode *dir, struct dentry *dentry,
 }
 
 static int bad_inode_mkdir(struct inode *dir, struct dentry *dentry,
-                        int mode)
+                        umode_t mode)
 {
         return -EIO;
 }
@@ -213,7 +213,7 @@ static int bad_inode_rmdir (struct inode *dir, struct dentry *dentry)
 }
 
 static int bad_inode_mknod (struct inode *dir, struct dentry *dentry,
-                        int mode, dev_t rdev)
+                        umode_t mode, dev_t rdev)
 {
         return -EIO;
 }
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 8342ca67abcd..6e6d536767fe 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -286,7 +286,6 @@ befs_alloc_inode(struct super_block *sb)
 static void befs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(befs_inode_cachep, BEFS_I(inode));
 }
 
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 9cc074019479..d12c7966db27 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -84,7 +84,7 @@ const struct file_operations bfs_dir_operations = {
 
 extern void dump_imap(const char *, struct super_block *);
 
-static int bfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int bfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                                                 struct nameidata *nd)
 {
         int err;
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 697af5bf70b3..b0391bc402b1 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -251,7 +251,6 @@ static struct inode *bfs_alloc_inode(struct super_block *sb)
 static void bfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(bfs_inode_cachep, BFS_I(inode));
 }
 
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 1e9edbdeda7e..a9198dfd5f85 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -560,7 +560,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
                         break;
                 case 2: set_bit(Enabled, &e->flags);
                         break;
-                case 3: root = dget(file->f_path.mnt->mnt_sb->s_root);
+                case 3: root = dget(file->f_path.dentry->d_sb->s_root);
                         mutex_lock(&root->d_inode->i_mutex);
 
                         kill_node(e);
@@ -587,7 +587,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
         Node *e;
         struct inode *inode;
         struct dentry *root, *dentry;
-        struct super_block *sb = file->f_path.mnt->mnt_sb;
+        struct super_block *sb = file->f_path.dentry->d_sb;
         int err = 0;
 
         e = create_entry(buffer, count);
@@ -666,7 +666,7 @@ static ssize_t bm_status_write(struct file * file, const char __user * buffer,
         switch (res) {
                 case 1: enabled = 0; break;
                 case 2: enabled = 1; break;
-                case 3: root = dget(file->f_path.mnt->mnt_sb->s_root);
+                case 3: root = dget(file->f_path.dentry->d_sb->s_root);
                         mutex_lock(&root->d_inode->i_mutex);
 
                         while (!list_empty(&entries))
diff --git a/fs/block_dev.c b/fs/block_dev.c
index b07f1da1de4e..69a5b6fbee2b 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/blkpg.h>
 #include <linux/buffer_head.h>
+#include <linux/swap.h>
 #include <linux/pagevec.h>
 #include <linux/writeback.h>
 #include <linux/mpage.h>
@@ -25,6 +26,7 @@
 #include <linux/namei.h>
 #include <linux/log2.h>
 #include <linux/kmemleak.h>
+#include <linux/cleancache.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
@@ -82,13 +84,35 @@ static sector_t max_block(struct block_device *bdev)
 }
 
 /* Kill _all_ buffers and pagecache , dirty or not.. */
-static void kill_bdev(struct block_device *bdev)
+void kill_bdev(struct block_device *bdev)
 {
-        if (bdev->bd_inode->i_mapping->nrpages == 0)
+        struct address_space *mapping = bdev->bd_inode->i_mapping;
+
+        if (mapping->nrpages == 0)
                 return;
+
         invalidate_bh_lrus();
-        truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
+        truncate_inode_pages(mapping, 0);
 }       
+EXPORT_SYMBOL(kill_bdev);
+
+/* Invalidate clean unused buffers and pagecache. */
+void invalidate_bdev(struct block_device *bdev)
+{
+        struct address_space *mapping = bdev->bd_inode->i_mapping;
+
+        if (mapping->nrpages == 0)
+                return;
+
+        invalidate_bh_lrus();
+        lru_add_drain_all();    /* make sure all lru add caches are flushed */
+        invalidate_mapping_pages(mapping, 0, -1);
+        /* 99% of the time, we don't need to flush the cleancache on the bdev.
+         * But, for the strange corners, lets be cautious
+         */
+        cleancache_flush_inode(mapping);
+}
+EXPORT_SYMBOL(invalidate_bdev);
 
 int set_blocksize(struct block_device *bdev, int size)
 {
@@ -425,7 +449,6 @@ static void bdev_i_callback(struct rcu_head *head)
         struct inode *inode = container_of(head, struct inode, i_rcu);
         struct bdev_inode *bdi = BDEV_I(inode);
 
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(bdev_cachep, bdi);
 }
 
@@ -493,7 +516,7 @@ static struct file_system_type bd_type = {
         .kill_sb        = kill_anon_super,
 };
 
-struct super_block *blockdev_superblock __read_mostly;
+static struct super_block *blockdev_superblock __read_mostly;
 
 void __init bdev_cache_init(void)
 {
@@ -639,6 +662,11 @@ static struct block_device *bd_acquire(struct inode *inode)
         return bdev;
 }
 
+static inline int sb_is_blkdev_sb(struct super_block *sb)
+{
+        return sb == blockdev_superblock;
+}
+
 /* Call when you free inode */
 
 void bd_forget(struct inode *inode)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index fd1a06df5bc6..2f426a51e60d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4412,8 +4412,8 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
                                      struct btrfs_root *root,
                                      struct inode *dir,
                                      const char *name, int name_len,
-                                     u64 ref_objectid, u64 objectid, int mode,
-                                     u64 *index)
+                                     u64 ref_objectid, u64 objectid,
+                                     umode_t mode, u64 *index)
 {
         struct inode *inode;
         struct btrfs_inode_item *inode_item;
@@ -4596,7 +4596,7 @@ static int btrfs_add_nondir(struct btrfs_trans_handle *trans,
 }
 
 static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
-                        int mode, dev_t rdev)
+                        umode_t mode, dev_t rdev)
 {
         struct btrfs_trans_handle *trans;
         struct btrfs_root *root = BTRFS_I(dir)->root;
@@ -4665,7 +4665,7 @@ out_unlock:
 }
 
 static int btrfs_create(struct inode *dir, struct dentry *dentry,
-                        int mode, struct nameidata *nd)
+                        umode_t mode, struct nameidata *nd)
 {
         struct btrfs_trans_handle *trans;
         struct btrfs_root *root = BTRFS_I(dir)->root;
@@ -4792,7 +4792,7 @@ fail:
         return err;
 }
 
-static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode *inode = NULL;
         struct btrfs_trans_handle *trans;
@@ -6761,7 +6761,6 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
 static void btrfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
 }
 
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index c04f02c7d5bb..5441ff1480fd 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -201,7 +201,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
                 }
         }
 
-        ret = mnt_want_write(file->f_path.mnt);
+        ret = mnt_want_write_file(file);
         if (ret)
                 goto out_unlock;
 
@@ -259,7 +259,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 
         btrfs_end_transaction(trans, root);
 
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
 
         ret = 0;
  out_unlock:
@@ -1855,7 +1855,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
                 goto out;
         }
 
-        err = mnt_want_write(file->f_path.mnt);
+        err = mnt_want_write_file(file);
         if (err)
                 goto out;
 
@@ -1971,7 +1971,7 @@ out_dput:
         dput(dentry);
 out_unlock_dir:
         mutex_unlock(&dir->i_mutex);
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
 out:
         kfree(vol_args);
         return err;
@@ -1987,7 +1987,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
         if (btrfs_root_readonly(root))
                 return -EROFS;
 
-        ret = mnt_want_write(file->f_path.mnt);
+        ret = mnt_want_write_file(file);
         if (ret)
                 return ret;
 
@@ -2040,7 +2040,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
                 ret = -EINVAL;
         }
 out:
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
         return ret;
 }
 
@@ -2195,7 +2195,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
         if (btrfs_root_readonly(root))
                 return -EROFS;
 
-        ret = mnt_want_write(file->f_path.mnt);
+        ret = mnt_want_write_file(file);
         if (ret)
                 return ret;
 
@@ -2510,7 +2510,7 @@ out_unlock:
 out_fput:
         fput(src_file);
 out_drop_write:
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
         return ret;
 }
 
@@ -2549,7 +2549,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
         if (btrfs_root_readonly(root))
                 goto out;
 
-        ret = mnt_want_write(file->f_path.mnt);
+        ret = mnt_want_write_file(file);
         if (ret)
                 goto out;
 
@@ -2565,7 +2565,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
 
 out_drop:
         atomic_dec(&root->fs_info->open_ioctl_trans);
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
 out:
         return ret;
 }
@@ -2800,7 +2800,7 @@ long btrfs_ioctl_trans_end(struct file *file)
 
         atomic_dec(&root->fs_info->open_ioctl_trans);
 
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
         return 0;
 }
 
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 200f63bc6675..ae488aa1966a 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -40,7 +40,6 @@
 #include <linux/magic.h>
 #include <linux/slab.h>
 #include <linux/cleancache.h>
-#include <linux/mnt_namespace.h>
 #include <linux/ratelimit.h>
 #include "compat.h"
 #include "delayed-inode.h"
@@ -662,9 +661,9 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
         return ret;
 }
 
-static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
 {
-        struct btrfs_root *root = btrfs_sb(vfs->mnt_sb);
+        struct btrfs_root *root = btrfs_sb(dentry->d_sb);
         struct btrfs_fs_info *info = root->fs_info;
         char *compress_type;
 
diff --git a/fs/buffer.c b/fs/buffer.c
index 19d8eb7fdc81..1a30db77af32 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -41,7 +41,6 @@
 #include <linux/bitops.h>
 #include <linux/mpage.h>
 #include <linux/bit_spinlock.h>
-#include <linux/cleancache.h>
 
 static int fsync_buffers_list(spinlock_t *lock, struct list_head *list);
 
@@ -231,55 +230,6 @@ out:
         return ret;
 }
 
-/* If invalidate_buffers() will trash dirty buffers, it means some kind
-   of fs corruption is going on. Trashing dirty data always imply losing
-   information that was supposed to be just stored on the physical layer
-   by the user.
-
-   Thus invalidate_buffers in general usage is not allwowed to trash
-   dirty buffers. For example ioctl(FLSBLKBUF) expects dirty data to
-   be preserved.  These buffers are simply skipped.
-  
-   We also skip buffers which are still in use.  For example this can
-   happen if a userspace program is reading the block device.
-
-   NOTE: In the case where the user removed a removable-media-disk even if
-   there's still dirty data not synced on disk (due a bug in the device driver
-   or due an error of the user), by not destroying the dirty buffers we could
-   generate corruption also on the next media inserted, thus a parameter is
-   necessary to handle this case in the most safe way possible (trying
-   to not corrupt also the new disk inserted with the data belonging to
-   the old now corrupted disk). Also for the ramdisk the natural thing
-   to do in order to release the ramdisk memory is to destroy dirty buffers.
-
-   These are two special cases. Normal usage imply the device driver
-   to issue a sync on the device (without waiting I/O completion) and
-   then an invalidate_buffers call that doesn't trash dirty buffers.
-
-   For handling cache coherency with the blkdev pagecache the 'update' case
-   is been introduced. It is needed to re-read from disk any pinned
-   buffer. NOTE: re-reading from disk is destructive so we can do it only
-   when we assume nobody is changing the buffercache under our I/O and when
-   we think the disk contains more recent information than the buffercache.
-   The update == 1 pass marks the buffers we need to update, the update == 2
-   pass does the actual I/O. */
-void invalidate_bdev(struct block_device *bdev)
-{
-        struct address_space *mapping = bdev->bd_inode->i_mapping;
-
-        if (mapping->nrpages == 0)
-                return;
-
-        invalidate_bh_lrus();
-        lru_add_drain_all();    /* make sure all lru add caches are flushed */
-        invalidate_mapping_pages(mapping, 0, -1);
-        /* 99% of the time, we don't need to flush the cleancache on the bdev.
-         * But, for the strange corners, lets be cautious
-         */
-        cleancache_flush_inode(mapping);
-}
-EXPORT_SYMBOL(invalidate_bdev);
-
 /*
  * Kick the writeback threads then try to free up some ZONE_NORMAL memory.
  */
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 1064805e653b..67bef6d01484 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -11,7 +11,6 @@
 
 #include <linux/slab.h>
 #include <linux/mount.h>
-#include <linux/buffer_head.h>
 #include "internal.h"
 
 #define list_to_page(head) (list_entry((head)->prev, struct page, lru))
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 8b53193e4f7c..b60fc8bfb3e9 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -928,7 +928,7 @@ static int send_cap_msg(struct ceph_mds_session *session,
                         u64 size, u64 max_size,
                         struct timespec *mtime, struct timespec *atime,
                         u64 time_warp_seq,
-                        uid_t uid, gid_t gid, mode_t mode,
+                        uid_t uid, gid_t gid, umode_t mode,
                         u64 xattr_version,
                         struct ceph_buffer *xattrs_buf,
                         u64 follows)
@@ -1078,7 +1078,7 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
         u64 size, max_size;
         struct timespec mtime, atime;
         int wake = 0;
-        mode_t mode;
+        umode_t mode;
         uid_t uid;
         gid_t gid;
         struct ceph_mds_session *session;
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 98954003a8d3..74fd74719dc2 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -666,7 +666,7 @@ int ceph_handle_notrace_create(struct inode *dir, struct dentry *dentry)
 }
 
 static int ceph_mknod(struct inode *dir, struct dentry *dentry,
-                      int mode, dev_t rdev)
+                      umode_t mode, dev_t rdev)
 {
         struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
         struct ceph_mds_client *mdsc = fsc->mdsc;
@@ -676,7 +676,7 @@ static int ceph_mknod(struct inode *dir, struct dentry *dentry,
         if (ceph_snap(dir) != CEPH_NOSNAP)
                 return -EROFS;
 
-        dout("mknod in dir %p dentry %p mode 0%o rdev %d\n",
+        dout("mknod in dir %p dentry %p mode 0%ho rdev %d\n",
              dir, dentry, mode, rdev);
         req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_MKNOD, USE_AUTH_MDS);
         if (IS_ERR(req)) {
@@ -699,7 +699,7 @@ static int ceph_mknod(struct inode *dir, struct dentry *dentry,
         return err;
 }
 
-static int ceph_create(struct inode *dir, struct dentry *dentry, int mode,
+static int ceph_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                        struct nameidata *nd)
 {
         dout("create in dir %p dentry %p name '%.*s'\n",
@@ -753,7 +753,7 @@ static int ceph_symlink(struct inode *dir, struct dentry *dentry,
         return err;
 }
 
-static int ceph_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int ceph_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
         struct ceph_mds_client *mdsc = fsc->mdsc;
@@ -767,7 +767,7 @@ static int ceph_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                 dout("mksnap dir %p snap '%.*s' dn %p\n", dir,
                      dentry->d_name.len, dentry->d_name.name, dentry);
         } else if (ceph_snap(dir) == CEPH_NOSNAP) {
-                dout("mkdir dir %p dn %p mode 0%o\n", dir, dentry, mode);
+                dout("mkdir dir %p dn %p mode 0%ho\n", dir, dentry, mode);
                 op = CEPH_MDS_OP_MKDIR;
         } else {
                 goto out;
@@ -870,7 +870,7 @@ static int ceph_unlink(struct inode *dir, struct dentry *dentry)
         } else if (ceph_snap(dir) == CEPH_NOSNAP) {
                 dout("unlink/rmdir dir %p dn %p inode %p\n",
                      dir, dentry, inode);
-                op = ((dentry->d_inode->i_mode & S_IFMT) == S_IFDIR) ?
+                op = S_ISDIR(dentry->d_inode->i_mode) ?
                         CEPH_MDS_OP_RMDIR : CEPH_MDS_OP_UNLINK;
         } else
                 goto out;
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 87fb132fb330..25283e7a37f8 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -384,7 +384,6 @@ static void ceph_i_callback(struct rcu_head *head)
         struct inode *inode = container_of(head, struct inode, i_rcu);
         struct ceph_inode_info *ci = ceph_inode(inode);
 
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ceph_inode_cachep, ci);
 }
 
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index b48f15f101a0..11bd0fc4853f 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -341,11 +341,11 @@ out:
 /**
  * ceph_show_options - Show mount options in /proc/mounts
  * @m: seq_file to write to
- * @mnt: mount descriptor
+ * @root: root of that (sub)tree
  */
-static int ceph_show_options(struct seq_file *m, struct vfsmount *mnt)
+static int ceph_show_options(struct seq_file *m, struct dentry *root)
 {
-        struct ceph_fs_client *fsc = ceph_sb_to_client(mnt->mnt_sb);
+        struct ceph_fs_client *fsc = ceph_sb_to_client(root->d_sb);
         struct ceph_mount_options *fsopt = fsc->mount_options;
         struct ceph_options *opt = fsc->client->options;
 
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index edcbf3774a56..cb3652b37271 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -136,7 +136,7 @@ struct ceph_cap_snap {
         int issued, dirty;
         struct ceph_snap_context *context;
 
-        mode_t mode;
+        umode_t mode;
         uid_t uid;
         gid_t gid;
 
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 500d65859279..c865bfdfe819 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -59,8 +59,8 @@ struct cifs_sb_info {
         gid_t   mnt_gid;
         uid_t   mnt_backupuid;
         gid_t   mnt_backupgid;
-        mode_t  mnt_file_mode;
-        mode_t  mnt_dir_mode;
+        umode_t mnt_file_mode;
+        umode_t mnt_dir_mode;
         unsigned int mnt_cifs_flags;
         char   *mountdata; /* options received at mount time or via DFS refs */
         struct backing_dev_info bdi;
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 8f1fe324162b..b1fd382d1952 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -343,9 +343,9 @@ cifs_show_security(struct seq_file *s, struct TCP_Server_Info *server)
  * ones are.
  */
 static int
-cifs_show_options(struct seq_file *s, struct vfsmount *m)
+cifs_show_options(struct seq_file *s, struct dentry *root)
 {
-        struct cifs_sb_info *cifs_sb = CIFS_SB(m->mnt_sb);
+        struct cifs_sb_info *cifs_sb = CIFS_SB(root->d_sb);
         struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
         struct sockaddr *srcaddr;
         srcaddr = (struct sockaddr *)&tcon->ses->server->srcaddr;
@@ -393,7 +393,7 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
         cifs_show_address(s, tcon->ses->server);
 
         if (!tcon->unix_ext)
-                seq_printf(s, ",file_mode=0%o,dir_mode=0%o",
+                seq_printf(s, ",file_mode=0%ho,dir_mode=0%ho",
                                            cifs_sb->mnt_file_mode,
                                            cifs_sb->mnt_dir_mode);
         if (tcon->seal)
@@ -430,7 +430,7 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
                 seq_printf(s, ",cifsacl");
         if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
                 seq_printf(s, ",dynperm");
-        if (m->mnt_sb->s_flags & MS_POSIXACL)
+        if (root->d_sb->s_flags & MS_POSIXACL)
                 seq_printf(s, ",acl");
         if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
                 seq_printf(s, ",mfsymlinks");
@@ -488,7 +488,7 @@ static void cifs_umount_begin(struct super_block *sb)
 }
 
 #ifdef CONFIG_CIFS_STATS2
-static int cifs_show_stats(struct seq_file *s, struct vfsmount *mnt)
+static int cifs_show_stats(struct seq_file *s, struct dentry *root)
 {
         /* BB FIXME */
         return 0;
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 30ff56005d8f..fe5ecf1b422a 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -44,14 +44,14 @@ extern const struct address_space_operations cifs_addr_ops_smallbuf;
 /* Functions related to inodes */
 extern const struct inode_operations cifs_dir_inode_ops;
 extern struct inode *cifs_root_iget(struct super_block *);
-extern int cifs_create(struct inode *, struct dentry *, int,
+extern int cifs_create(struct inode *, struct dentry *, umode_t,
                        struct nameidata *);
 extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
                                   struct nameidata *);
 extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
 extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
-extern int cifs_mknod(struct inode *, struct dentry *, int, dev_t);
-extern int cifs_mkdir(struct inode *, struct dentry *, int);
+extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
+extern int cifs_mkdir(struct inode *, struct dentry *, umode_t);
 extern int cifs_rmdir(struct inode *, struct dentry *);
 extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
                        struct dentry *);
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 8238aa13e01c..ba53c1c6c6cc 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -169,8 +169,8 @@ struct smb_vol {
         gid_t linux_gid;
         uid_t backupuid;
         gid_t backupgid;
-        mode_t file_mode;
-        mode_t dir_mode;
+        umode_t file_mode;
+        umode_t dir_mode;
         unsigned secFlg;
         bool retry:1;
         bool intr:1;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index f3670cf72587..4666780f315d 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2819,7 +2819,7 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
                 cifs_sb->mnt_backupgid = pvolume_info->backupgid;
         cifs_sb->mnt_file_mode = pvolume_info->file_mode;
         cifs_sb->mnt_dir_mode = pvolume_info->dir_mode;
-        cFYI(1, "file mode: 0x%x  dir mode: 0x%x",
+        cFYI(1, "file mode: 0x%hx  dir mode: 0x%hx",
                 cifs_sb->mnt_file_mode, cifs_sb->mnt_dir_mode);
 
         cifs_sb->actimeo = pvolume_info->actimeo;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index d7eeb9d3ed6f..df8fecb5b993 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -136,7 +136,7 @@ cifs_bp_rename_retry:
 /* Inode operations in similar order to how they appear in Linux file fs.h */
 
 int
-cifs_create(struct inode *inode, struct dentry *direntry, int mode,
+cifs_create(struct inode *inode, struct dentry *direntry, umode_t mode,
                 struct nameidata *nd)
 {
         int rc = -ENOENT;
@@ -355,7 +355,7 @@ cifs_create_out:
         return rc;
 }
 
-int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
+int cifs_mknod(struct inode *inode, struct dentry *direntry, umode_t mode,
                 dev_t device_number)
 {
         int rc = -EPERM;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index e851d5b8931e..a5f54b7d9822 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1264,7 +1264,7 @@ unlink_out:
         return rc;
 }
 
-int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
+int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
 {
         int rc = 0, tmprc;
         int xid;
@@ -1275,7 +1275,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
         struct inode *newinode = NULL;
         struct cifs_fattr fattr;
 
-        cFYI(1, "In cifs_mkdir, mode = 0x%x inode = 0x%p", mode, inode);
+        cFYI(1, "In cifs_mkdir, mode = 0x%hx inode = 0x%p", mode, inode);
 
         cifs_sb = CIFS_SB(inode->i_sb);
         tlink = cifs_sb_tlink(cifs_sb);
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 28e7e135cfab..83d2fd8ec24b 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -30,14 +30,14 @@
 #include "coda_int.h"
 
 /* dir inode-ops */
-static int coda_create(struct inode *dir, struct dentry *new, int mode, struct nameidata *nd);
+static int coda_create(struct inode *dir, struct dentry *new, umode_t mode, struct nameidata *nd);
 static struct dentry *coda_lookup(struct inode *dir, struct dentry *target, struct nameidata *nd);
 static int coda_link(struct dentry *old_dentry, struct inode *dir_inode, 
                      struct dentry *entry);
 static int coda_unlink(struct inode *dir_inode, struct dentry *entry);
 static int coda_symlink(struct inode *dir_inode, struct dentry *entry,
                         const char *symname);
-static int coda_mkdir(struct inode *dir_inode, struct dentry *entry, int mode);
+static int coda_mkdir(struct inode *dir_inode, struct dentry *entry, umode_t mode);
 static int coda_rmdir(struct inode *dir_inode, struct dentry *entry);
 static int coda_rename(struct inode *old_inode, struct dentry *old_dentry, 
                        struct inode *new_inode, struct dentry *new_dentry);
@@ -191,7 +191,7 @@ static inline void coda_dir_drop_nlink(struct inode *dir)
 }
 
 /* creation routines: create, mknod, mkdir, link, symlink */
-static int coda_create(struct inode *dir, struct dentry *de, int mode, struct nameidata *nd)
+static int coda_create(struct inode *dir, struct dentry *de, umode_t mode, struct nameidata *nd)
 {
         int error;
         const char *name=de->d_name.name;
@@ -223,7 +223,7 @@ err_out:
         return error;
 }
 
-static int coda_mkdir(struct inode *dir, struct dentry *de, int mode)
+static int coda_mkdir(struct inode *dir, struct dentry *de, umode_t mode)
 {
         struct inode *inode;
         struct coda_vattr attrs;
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 871b27715465..1c08a8cd673a 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -58,7 +58,6 @@ static struct inode *coda_alloc_inode(struct super_block *sb)
 static void coda_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(coda_inode_cachep, ITOC(inode));
 }
 
diff --git a/fs/compat.c b/fs/compat.c
index c98787536bb8..fa9d721ecfee 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -342,16 +342,9 @@ asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz, struct c
  */
 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u)
 {
-        struct super_block *sb;
         struct compat_ustat tmp;
         struct kstatfs sbuf;
-        int err;
-
-        sb = user_get_super(new_decode_dev(dev));
-        if (!sb)
-                return -EINVAL;
-        err = statfs_by_dentry(sb->s_root, &sbuf);
-        drop_super(sb);
+        int err = vfs_ustat(new_decode_dev(dev), &sbuf);
         if (err)
                 return err;
 
@@ -1288,7 +1281,7 @@ compat_sys_vmsplice(int fd, const struct compat_iovec __user *iov32,
  * O_LARGEFILE flag.
  */
 asmlinkage long
-compat_sys_open(const char __user *filename, int flags, int mode)
+compat_sys_open(const char __user *filename, int flags, umode_t mode)
 {
         return do_sys_open(AT_FDCWD, filename, flags, mode);
 }
@@ -1298,7 +1291,7 @@ compat_sys_open(const char __user *filename, int flags, int mode)
  * O_LARGEFILE flag.
  */
 asmlinkage long
-compat_sys_openat(unsigned int dfd, const char __user *filename, int flags, int mode)
+compat_sys_openat(unsigned int dfd, const char __user *filename, int flags, umode_t mode)
 {
         return do_sys_open(dfd, filename, flags, mode);
 }
diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h
index 82bda8fdfc1c..ede857d20a04 100644
--- a/fs/configfs/configfs_internal.h
+++ b/fs/configfs/configfs_internal.h
@@ -63,8 +63,8 @@ extern struct kmem_cache *configfs_dir_cachep;
 
 extern int configfs_is_root(struct config_item *item);
 
-extern struct inode * configfs_new_inode(mode_t mode, struct configfs_dirent *);
-extern int configfs_create(struct dentry *, int mode, int (*init)(struct inode *));
+extern struct inode * configfs_new_inode(umode_t mode, struct configfs_dirent *);
+extern int configfs_create(struct dentry *, umode_t mode, int (*init)(struct inode *));
 extern int configfs_inode_init(void);
 extern void configfs_inode_exit(void);
 
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 9a37a9b6de3a..5ddd7ebd9dcd 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -311,8 +311,8 @@ static int configfs_create_dir(struct config_item * item, struct dentry *dentry)
 
         if (item->ci_parent)
                 parent = item->ci_parent->ci_dentry;
-        else if (configfs_mount && configfs_mount->mnt_sb)
-                parent = configfs_mount->mnt_sb->s_root;
+        else if (configfs_mount)
+                parent = configfs_mount->mnt_root;
         else
                 return -EFAULT;
 
@@ -1170,7 +1170,7 @@ void configfs_undepend_item(struct configfs_subsystem *subsys,
 }
 EXPORT_SYMBOL(configfs_undepend_item);
 
-static int configfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int configfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int ret = 0;
         int module_got = 0;
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index 9d8715c45f25..3ee36d418863 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -116,7 +116,7 @@ int configfs_setattr(struct dentry * dentry, struct iattr * iattr)
         return error;
 }
 
-static inline void set_default_inode_attr(struct inode * inode, mode_t mode)
+static inline void set_default_inode_attr(struct inode * inode, umode_t mode)
 {
         inode->i_mode = mode;
         inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -132,7 +132,7 @@ static inline void set_inode_attr(struct inode * inode, struct iattr * iattr)
         inode->i_ctime = iattr->ia_ctime;
 }
 
-struct inode * configfs_new_inode(mode_t mode, struct configfs_dirent * sd)
+struct inode *configfs_new_inode(umode_t mode, struct configfs_dirent * sd)
 {
         struct inode * inode = new_inode(configfs_sb);
         if (inode) {
@@ -185,7 +185,7 @@ static void configfs_set_inode_lock_class(struct configfs_dirent *sd,
 
 #endif /* CONFIG_LOCKDEP */
 
-int configfs_create(struct dentry * dentry, int mode, int (*init)(struct inode *))
+int configfs_create(struct dentry * dentry, umode_t mode, int (*init)(struct inode *))
 {
         int error = 0;
         struct inode * inode = NULL;
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 739fb59bcdc2..a2ee8f9f5a38 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -20,7 +20,6 @@
 #include <linux/cramfs_fs.h>
 #include <linux/slab.h>
 #include <linux/cramfs_fs_sb.h>
-#include <linux/buffer_head.h>
 #include <linux/vfs.h>
 #include <linux/mutex.h>
 
@@ -378,7 +377,7 @@ static int cramfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
                 unsigned long nextoffset;
                 char *name;
                 ino_t ino;
-                mode_t mode;
+                umode_t mode;
                 int namelen, error;
 
                 mutex_lock(&read_mutex);
diff --git a/fs/dcache.c b/fs/dcache.c
index 89509b5a090e..9791b1e7eee4 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -38,6 +38,7 @@
 #include <linux/prefetch.h>
 #include <linux/ratelimit.h>
 #include "internal.h"
+#include "mount.h"
 
 /*
  * Usage:
@@ -2451,6 +2452,7 @@ static int prepend_path(const struct path *path,
 {
         struct dentry *dentry = path->dentry;
         struct vfsmount *vfsmnt = path->mnt;
+        struct mount *mnt = real_mount(vfsmnt);
         bool slash = false;
         int error = 0;
 
@@ -2460,11 +2462,11 @@ static int prepend_path(const struct path *path,
 
                 if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
                         /* Global root? */
-                        if (vfsmnt->mnt_parent == vfsmnt) {
+                        if (!mnt_has_parent(mnt))
                                 goto global_root;
-                        }
-                        dentry = vfsmnt->mnt_mountpoint;
-                        vfsmnt = vfsmnt->mnt_parent;
+                        dentry = mnt->mnt_mountpoint;
+                        mnt = mnt->mnt_parent;
+                        vfsmnt = &mnt->mnt;
                         continue;
                 }
                 parent = dentry->d_parent;
@@ -2501,7 +2503,7 @@ global_root:
         if (!slash)
                 error = prepend(buffer, buflen, "/", 1);
         if (!error)
-                error = vfsmnt->mnt_ns ? 1 : 2;
+                error = real_mount(vfsmnt)->mnt_ns ? 1 : 2;
         goto out;
 }
 
@@ -2853,31 +2855,6 @@ int is_subdir(struct dentry *new_dentry, struct dentry *old_dentry)
         return result;
 }
 
-int path_is_under(struct path *path1, struct path *path2)
-{
-        struct vfsmount *mnt = path1->mnt;
-        struct dentry *dentry = path1->dentry;
-        int res;
-
-        br_read_lock(vfsmount_lock);
-        if (mnt != path2->mnt) {
-                for (;;) {
-                        if (mnt->mnt_parent == mnt) {
-                                br_read_unlock(vfsmount_lock);
-                                return 0;
-                        }
-                        if (mnt->mnt_parent == path2->mnt)
-                                break;
-                        mnt = mnt->mnt_parent;
-                }
-                dentry = mnt->mnt_mountpoint;
-        }
-        res = is_subdir(dentry, path2->dentry);
-        br_read_unlock(vfsmount_lock);
-        return res;
-}
-EXPORT_SYMBOL(path_is_under);
-
 void d_genocide(struct dentry *root)
 {
         struct dentry *this_parent;
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index ea62afa4fd57..f65d4455c5e5 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -97,7 +97,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u8_wo, NULL, debugfs_u8_set, "%llu\n");
  * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling
  * code.
  */
-struct dentry *debugfs_create_u8(const char *name, mode_t mode,
+struct dentry *debugfs_create_u8(const char *name, umode_t mode,
                                  struct dentry *parent, u8 *value)
 {
         /* if there are no write bits set, make read only */
@@ -149,7 +149,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u16_wo, NULL, debugfs_u16_set, "%llu\n");
  * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling
  * code.
  */
-struct dentry *debugfs_create_u16(const char *name, mode_t mode,
+struct dentry *debugfs_create_u16(const char *name, umode_t mode,
                                   struct dentry *parent, u16 *value)
 {
         /* if there are no write bits set, make read only */
@@ -201,7 +201,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u32_wo, NULL, debugfs_u32_set, "%llu\n");
  * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling
  * code.
  */
-struct dentry *debugfs_create_u32(const char *name, mode_t mode,
+struct dentry *debugfs_create_u32(const char *name, umode_t mode,
                                  struct dentry *parent, u32 *value)
 {
         /* if there are no write bits set, make read only */
@@ -254,7 +254,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
  * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling
  * code.
  */
-struct dentry *debugfs_create_u64(const char *name, mode_t mode,
+struct dentry *debugfs_create_u64(const char *name, umode_t mode,
                                  struct dentry *parent, u64 *value)
 {
         /* if there are no write bits set, make read only */
@@ -300,7 +300,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_x64, debugfs_u64_get, debugfs_u64_set, "0x%016llx\n
  * @value: a pointer to the variable that the file should read to and write
  *         from.
  */
-struct dentry *debugfs_create_x8(const char *name, mode_t mode,
+struct dentry *debugfs_create_x8(const char *name, umode_t mode,
                                  struct dentry *parent, u8 *value)
 {
         /* if there are no write bits set, make read only */
@@ -324,7 +324,7 @@ EXPORT_SYMBOL_GPL(debugfs_create_x8);
  * @value: a pointer to the variable that the file should read to and write
  *         from.
  */
-struct dentry *debugfs_create_x16(const char *name, mode_t mode,
+struct dentry *debugfs_create_x16(const char *name, umode_t mode,
                                  struct dentry *parent, u16 *value)
 {
         /* if there are no write bits set, make read only */
@@ -348,7 +348,7 @@ EXPORT_SYMBOL_GPL(debugfs_create_x16);
  * @value: a pointer to the variable that the file should read to and write
  *         from.
  */
-struct dentry *debugfs_create_x32(const char *name, mode_t mode,
+struct dentry *debugfs_create_x32(const char *name, umode_t mode,
                                  struct dentry *parent, u32 *value)
 {
         /* if there are no write bits set, make read only */
@@ -372,7 +372,7 @@ EXPORT_SYMBOL_GPL(debugfs_create_x32);
  * @value: a pointer to the variable that the file should read to and write
  *         from.
  */
-struct dentry *debugfs_create_x64(const char *name, mode_t mode,
+struct dentry *debugfs_create_x64(const char *name, umode_t mode,
                                  struct dentry *parent, u64 *value)
 {
         return debugfs_create_file(name, mode, parent, value, &fops_x64);
@@ -403,7 +403,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_size_t, debugfs_size_t_get, debugfs_size_t_set,
  * @value: a pointer to the variable that the file should read to and write
  *         from.
  */
-struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
+struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
                                      struct dentry *parent, size_t *value)
 {
         return debugfs_create_file(name, mode, parent, value, &fops_size_t);
@@ -475,7 +475,7 @@ static const struct file_operations fops_bool = {
  * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling
  * code.
  */
-struct dentry *debugfs_create_bool(const char *name, mode_t mode,
+struct dentry *debugfs_create_bool(const char *name, umode_t mode,
                                    struct dentry *parent, u32 *value)
 {
         return debugfs_create_file(name, mode, parent, value, &fops_bool);
@@ -520,7 +520,7 @@ static const struct file_operations fops_blob = {
  * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling
  * code.
  */
-struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+struct dentry *debugfs_create_blob(const char *name, umode_t mode,
                                    struct dentry *parent,
                                    struct debugfs_blob_wrapper *blob)
 {
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index f3a257d7a985..956d5ddddf6e 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -30,7 +30,7 @@ static struct vfsmount *debugfs_mount;
 static int debugfs_mount_count;
 static bool debugfs_registered;
 
-static struct inode *debugfs_get_inode(struct super_block *sb, int mode, dev_t dev,
+static struct inode *debugfs_get_inode(struct super_block *sb, umode_t mode, dev_t dev,
                                        void *data, const struct file_operations *fops)
 
 {
@@ -69,7 +69,7 @@ static struct inode *debugfs_get_inode(struct super_block *sb, int mode, dev_t d
 
 /* SMP-safe */
 static int debugfs_mknod(struct inode *dir, struct dentry *dentry,
-                         int mode, dev_t dev, void *data,
+                         umode_t mode, dev_t dev, void *data,
                          const struct file_operations *fops)
 {
         struct inode *inode;
@@ -87,7 +87,7 @@ static int debugfs_mknod(struct inode *dir, struct dentry *dentry,
         return error;
 }
 
-static int debugfs_mkdir(struct inode *dir, struct dentry *dentry, int mode,
+static int debugfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode,
                          void *data, const struct file_operations *fops)
 {
         int res;
@@ -101,14 +101,14 @@ static int debugfs_mkdir(struct inode *dir, struct dentry *dentry, int mode,
         return res;
 }
 
-static int debugfs_link(struct inode *dir, struct dentry *dentry, int mode,
+static int debugfs_link(struct inode *dir, struct dentry *dentry, umode_t mode,
                         void *data, const struct file_operations *fops)
 {
         mode = (mode & S_IALLUGO) | S_IFLNK;
         return debugfs_mknod(dir, dentry, mode, 0, data, fops);
 }
 
-static int debugfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int debugfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                           void *data, const struct file_operations *fops)
 {
         int res;
@@ -146,7 +146,7 @@ static struct file_system_type debug_fs_type = {
         .kill_sb =      kill_litter_super,
 };
 
-static int debugfs_create_by_name(const char *name, mode_t mode,
+static int debugfs_create_by_name(const char *name, umode_t mode,
                                   struct dentry *parent,
                                   struct dentry **dentry,
                                   void *data,
@@ -160,7 +160,7 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
          * have around.
          */
         if (!parent)
-                parent = debugfs_mount->mnt_sb->s_root;
+                parent = debugfs_mount->mnt_root;
 
         *dentry = NULL;
         mutex_lock(&parent->d_inode->i_mutex);
@@ -214,7 +214,7 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
  * If debugfs is not enabled in the kernel, the value -%ENODEV will be
  * returned.
  */
-struct dentry *debugfs_create_file(const char *name, mode_t mode,
+struct dentry *debugfs_create_file(const char *name, umode_t mode,
                                    struct dentry *parent, void *data,
                                    const struct file_operations *fops)
 {
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index d5d5297efe97..79673eb71151 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -246,9 +246,9 @@ static int devpts_remount(struct super_block *sb, int *flags, char *data)
         return err;
 }
 
-static int devpts_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int devpts_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct pts_fs_info *fsi = DEVPTS_SB(vfs->mnt_sb);
+        struct pts_fs_info *fsi = DEVPTS_SB(root->d_sb);
         struct pts_mount_opts *opts = &fsi->mount_opts;
 
         if (opts->setuid)
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 32f90a3ae63e..19a8ca4ab1dd 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -144,24 +144,6 @@ static int ecryptfs_interpose(struct dentry *lower_dentry,
 }
 
 /**
- * ecryptfs_create_underlying_file
- * @lower_dir_inode: inode of the parent in the lower fs of the new file
- * @dentry: New file's dentry
- * @mode: The mode of the new file
- *
- * Creates the file in the lower file system.
- *
- * Returns zero on success; non-zero on error condition
- */
-static int
-ecryptfs_create_underlying_file(struct inode *lower_dir_inode,
-                                struct dentry *dentry, int mode)
-{
-        struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
-        return vfs_create(lower_dir_inode, lower_dentry, mode, NULL);
-}
-
-/**
  * ecryptfs_do_create
  * @directory_inode: inode of the new file's dentry's parent in ecryptfs
  * @ecryptfs_dentry: New file's dentry in ecryptfs
@@ -176,7 +158,7 @@ ecryptfs_create_underlying_file(struct inode *lower_dir_inode,
  */
 static struct inode *
 ecryptfs_do_create(struct inode *directory_inode,
-                   struct dentry *ecryptfs_dentry, int mode)
+                   struct dentry *ecryptfs_dentry, umode_t mode)
 {
         int rc;
         struct dentry *lower_dentry;
@@ -191,8 +173,7 @@ ecryptfs_do_create(struct inode *directory_inode,
                 inode = ERR_CAST(lower_dir_dentry);
                 goto out;
         }
-        rc = ecryptfs_create_underlying_file(lower_dir_dentry->d_inode,
-                                             ecryptfs_dentry, mode);
+        rc = vfs_create(lower_dir_dentry->d_inode, lower_dentry, mode, NULL);
         if (rc) {
                 printk(KERN_ERR "%s: Failure to create dentry in lower fs; "
                        "rc = [%d]\n", __func__, rc);
@@ -267,7 +248,7 @@ out:
  */
 static int
 ecryptfs_create(struct inode *directory_inode, struct dentry *ecryptfs_dentry,
-                int mode, struct nameidata *nd)
+                umode_t mode, struct nameidata *nd)
 {
         struct inode *ecryptfs_inode;
         int rc;
@@ -559,7 +540,7 @@ out_lock:
         return rc;
 }
 
-static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int rc;
         struct dentry *lower_dentry;
@@ -607,7 +588,7 @@ static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)
 }
 
 static int
-ecryptfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+ecryptfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         int rc;
         struct dentry *lower_dentry;
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index dbd52d40df4c..9df7fd6e0c39 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -69,7 +69,6 @@ static void ecryptfs_i_callback(struct rcu_head *head)
         struct ecryptfs_inode_info *inode_info;
         inode_info = ecryptfs_inode_to_private(inode);
 
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ecryptfs_inode_info_cache, inode_info);
 }
 
@@ -132,9 +131,9 @@ static void ecryptfs_evict_inode(struct inode *inode)
  * 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)
+static int ecryptfs_show_options(struct seq_file *m, struct dentry *root)
 {
-        struct super_block *sb = mnt->mnt_sb;
+        struct super_block *sb = root->d_sb;
         struct ecryptfs_mount_crypt_stat *mount_crypt_stat =
                 &ecryptfs_superblock_to_private(sb)->mount_crypt_stat;
         struct ecryptfs_global_auth_tok *walker;
diff --git a/fs/efs/super.c b/fs/efs/super.c
index 0f31acb0131c..981106429a9f 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -68,7 +68,6 @@ static struct inode *efs_alloc_inode(struct super_block *sb)
 static void efs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(efs_inode_cachep, INODE_INFO(inode));
 }
 
diff --git a/fs/exec.c b/fs/exec.c
index 36254645b7cc..3f64b9f26e7d 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1225,7 +1225,7 @@ EXPORT_SYMBOL(install_exec_creds);
  * - the caller must hold ->cred_guard_mutex to protect against
  *   PTRACE_ATTACH
  */
-int check_unsafe_exec(struct linux_binprm *bprm)
+static int check_unsafe_exec(struct linux_binprm *bprm)
 {
         struct task_struct *p = current, *t;
         unsigned n_fs;
diff --git a/fs/exofs/dir.c b/fs/exofs/dir.c
index d0941c6a1f72..80405836ba6e 100644
--- a/fs/exofs/dir.c
+++ b/fs/exofs/dir.c
@@ -234,7 +234,7 @@ static unsigned char exofs_type_by_mode[S_IFMT >> S_SHIFT] = {
 static inline
 void exofs_set_de_type(struct exofs_dir_entry *de, struct inode *inode)
 {
-        mode_t mode = inode->i_mode;
+        umode_t mode = inode->i_mode;
         de->file_type = exofs_type_by_mode[(mode & S_IFMT) >> S_SHIFT];
 }
 
diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h
index 51f4b4c40f09..ca9d49665ef6 100644
--- a/fs/exofs/exofs.h
+++ b/fs/exofs/exofs.h
@@ -154,7 +154,7 @@ int exofs_write_begin(struct file *file, struct address_space *mapping,
                 loff_t pos, unsigned len, unsigned flags,
                 struct page **pagep, void **fsdata);
 extern struct inode *exofs_iget(struct super_block *, unsigned long);
-struct inode *exofs_new_inode(struct inode *, int);
+struct inode *exofs_new_inode(struct inode *, umode_t);
 extern int exofs_write_inode(struct inode *, struct writeback_control *wbc);
 extern void exofs_evict_inode(struct inode *);
 
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index f6dbf7768ce6..ea5e1f97806a 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -1276,7 +1276,7 @@ static void create_done(struct ore_io_state *ios, void *p)
 /*
  * Set up a new inode and create an object for it on the OSD
  */
-struct inode *exofs_new_inode(struct inode *dir, int mode)
+struct inode *exofs_new_inode(struct inode *dir, umode_t mode)
 {
         struct super_block *sb = dir->i_sb;
         struct exofs_sb_info *sbi = sb->s_fs_info;
diff --git a/fs/exofs/namei.c b/fs/exofs/namei.c
index b54c43775f17..9dbf0c301030 100644
--- a/fs/exofs/namei.c
+++ b/fs/exofs/namei.c
@@ -59,7 +59,7 @@ static struct dentry *exofs_lookup(struct inode *dir, struct dentry *dentry,
         return d_splice_alias(inode, dentry);
 }
 
-static int exofs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int exofs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                          struct nameidata *nd)
 {
         struct inode *inode = exofs_new_inode(dir, mode);
@@ -74,7 +74,7 @@ static int exofs_create(struct inode *dir, struct dentry *dentry, int mode,
         return err;
 }
 
-static int exofs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+static int exofs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
                        dev_t rdev)
 {
         struct inode *inode;
@@ -153,7 +153,7 @@ static int exofs_link(struct dentry *old_dentry, struct inode *dir,
         return exofs_add_nondir(dentry, inode);
 }
 
-static int exofs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int exofs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode *inode;
         int err = -EMLINK;
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index e6085ec192d6..8addfe314dc7 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -166,7 +166,6 @@ static struct inode *exofs_alloc_inode(struct super_block *sb)
 static void exofs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(exofs_inode_cachep, exofs_i(inode));
 }
 
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 47cda410b548..d37df352d324 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -279,7 +279,7 @@ static unsigned char ext2_type_by_mode[S_IFMT >> S_SHIFT] = {
 
 static inline void ext2_set_de_type(ext2_dirent *de, struct inode *inode)
 {
-        mode_t mode = inode->i_mode;
+        umode_t mode = inode->i_mode;
         if (EXT2_HAS_INCOMPAT_FEATURE(inode->i_sb, EXT2_FEATURE_INCOMPAT_FILETYPE))
                 de->file_type = ext2_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
         else
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 9a4e5e206d08..75ad433c6691 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -110,7 +110,7 @@ extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **);
 extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *, int);
 
 /* ialloc.c */
-extern struct inode * ext2_new_inode (struct inode *, int, const struct qstr *);
+extern struct inode * ext2_new_inode (struct inode *, umode_t, const struct qstr *);
 extern void ext2_free_inode (struct inode *);
 extern unsigned long ext2_count_free_inodes (struct super_block *);
 extern void ext2_check_inodes_bitmap (struct super_block *);
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index c4e81dfb74ba..cd7f5f424a75 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -429,7 +429,7 @@ found:
         return group;
 }
 
-struct inode *ext2_new_inode(struct inode *dir, int mode,
+struct inode *ext2_new_inode(struct inode *dir, umode_t mode,
                              const struct qstr *qstr)
 {
         struct super_block *sb;
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index f81e250ac5c4..1089f760c847 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -35,7 +35,7 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
         case EXT2_IOC_SETFLAGS: {
                 unsigned int oldflags;
 
-                ret = mnt_want_write(filp->f_path.mnt);
+                ret = mnt_want_write_file(filp);
                 if (ret)
                         return ret;
 
@@ -83,7 +83,7 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 inode->i_ctime = CURRENT_TIME_SEC;
                 mark_inode_dirty(inode);
 setflags_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return ret;
         }
         case EXT2_IOC_GETVERSION:
@@ -91,7 +91,7 @@ setflags_out:
         case EXT2_IOC_SETVERSION:
                 if (!inode_owner_or_capable(inode))
                         return -EPERM;
-                ret = mnt_want_write(filp->f_path.mnt);
+                ret = mnt_want_write_file(filp);
                 if (ret)
                         return ret;
                 if (get_user(inode->i_generation, (int __user *) arg)) {
@@ -100,7 +100,7 @@ setflags_out:
                         inode->i_ctime = CURRENT_TIME_SEC;
                         mark_inode_dirty(inode);
                 }
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return ret;
         case EXT2_IOC_GETRSVSZ:
                 if (test_opt(inode->i_sb, RESERVATION)
@@ -121,7 +121,7 @@ setflags_out:
                 if (get_user(rsv_window_size, (int __user *)arg))
                         return -EFAULT;
 
-                ret = mnt_want_write(filp->f_path.mnt);
+                ret = mnt_want_write_file(filp);
                 if (ret)
                         return ret;
 
@@ -145,7 +145,7 @@ setflags_out:
                         rsv->rsv_goal_size = rsv_window_size;
                 }
                 mutex_unlock(&ei->truncate_mutex);
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return 0;
         }
         default:
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 761fde807fc9..080419814bae 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -94,7 +94,7 @@ struct dentry *ext2_get_parent(struct dentry *child)
  * If the create succeeds, we fill in the inode information
  * with d_instantiate(). 
  */
-static int ext2_create (struct inode * dir, struct dentry * dentry, int mode, struct nameidata *nd)
+static int ext2_create (struct inode * dir, struct dentry * dentry, umode_t mode, struct nameidata *nd)
 {
         struct inode *inode;
 
@@ -119,7 +119,7 @@ static int ext2_create (struct inode * dir, struct dentry * dentry, int mode, st
         return ext2_add_nondir(dentry, inode);
 }
 
-static int ext2_mknod (struct inode * dir, struct dentry *dentry, int mode, dev_t rdev)
+static int ext2_mknod (struct inode * dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
         struct inode * inode;
         int err;
@@ -214,7 +214,7 @@ static int ext2_link (struct dentry * old_dentry, struct inode * dir,
         return err;
 }
 
-static int ext2_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+static int ext2_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
 {
         struct inode * inode;
         int err = -EMLINK;
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index bd8ac164a3bf..9b403f064ce0 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -173,7 +173,6 @@ static struct inode *ext2_alloc_inode(struct super_block *sb)
 static void ext2_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ext2_inode_cachep, EXT2_I(inode));
 }
 
@@ -211,9 +210,9 @@ static void destroy_inodecache(void)
         kmem_cache_destroy(ext2_inode_cachep);
 }
 
-static int ext2_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int ext2_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct super_block *sb = vfs->mnt_sb;
+        struct super_block *sb = root->d_sb;
         struct ext2_sb_info *sbi = EXT2_SB(sb);
         struct ext2_super_block *es = sbi->s_es;
         unsigned long def_mount_opts;
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 5c866e06e7ab..92cc86dfa23d 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -371,7 +371,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
  * group to find a free inode.
  */
 struct inode *ext3_new_inode(handle_t *handle, struct inode * dir,
-                             const struct qstr *qstr, int mode)
+                             const struct qstr *qstr, umode_t mode)
 {
         struct super_block *sb;
         struct buffer_head *bitmap_bh = NULL;
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index ba1b54e23cae..8e37c41a071b 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -44,7 +44,7 @@ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 if (get_user(flags, (int __user *) arg))
                         return -EFAULT;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -110,7 +110,7 @@ flags_err:
                         err = ext3_change_inode_journal_flag(inode, jflag);
 flags_out:
                 mutex_unlock(&inode->i_mutex);
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         case EXT3_IOC_GETVERSION:
@@ -126,7 +126,7 @@ flags_out:
                 if (!inode_owner_or_capable(inode))
                         return -EPERM;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
                 if (get_user(generation, (int __user *) arg)) {
@@ -147,7 +147,7 @@ flags_out:
                 }
                 ext3_journal_stop(handle);
 setversion_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         case EXT3_IOC_GETRSVSZ:
@@ -164,7 +164,7 @@ setversion_out:
                 if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
                         return -ENOTTY;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -195,7 +195,7 @@ setversion_out:
                 }
                 mutex_unlock(&ei->truncate_mutex);
 setrsvsz_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         case EXT3_IOC_GROUP_EXTEND: {
@@ -206,7 +206,7 @@ setrsvsz_out:
                 if (!capable(CAP_SYS_RESOURCE))
                         return -EPERM;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -221,7 +221,7 @@ setrsvsz_out:
                 if (err == 0)
                         err = err2;
 group_extend_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         case EXT3_IOC_GROUP_ADD: {
@@ -232,7 +232,7 @@ group_extend_out:
                 if (!capable(CAP_SYS_RESOURCE))
                         return -EPERM;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -249,7 +249,7 @@ group_extend_out:
                 if (err == 0)
                         err = err2;
 group_add_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         case FITRIM: {
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 642dc6d66dfd..4f35b2f315d4 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1698,7 +1698,7 @@ static int ext3_add_nondir(handle_t *handle,
  * If the create succeeds, we fill in the inode information
  * with d_instantiate().
  */
-static int ext3_create (struct inode * dir, struct dentry * dentry, int mode,
+static int ext3_create (struct inode * dir, struct dentry * dentry, umode_t mode,
                 struct nameidata *nd)
 {
         handle_t *handle;
@@ -1732,7 +1732,7 @@ retry:
 }
 
 static int ext3_mknod (struct inode * dir, struct dentry *dentry,
-                        int mode, dev_t rdev)
+                        umode_t mode, dev_t rdev)
 {
         handle_t *handle;
         struct inode *inode;
@@ -1768,7 +1768,7 @@ retry:
         return err;
 }
 
-static int ext3_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+static int ext3_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
 {
         handle_t *handle;
         struct inode * inode;
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 922d289aeeb3..3a10b884e1be 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -511,7 +511,6 @@ static int ext3_drop_inode(struct inode *inode)
 static void ext3_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
 }
 
@@ -611,9 +610,9 @@ static char *data_mode_string(unsigned long mode)
  *  - it's set to a non-default value OR
  *  - if the per-sb default is different from the global default
  */
-static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int ext3_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct super_block *sb = vfs->mnt_sb;
+        struct super_block *sb = root->d_sb;
         struct ext3_sb_info *sbi = EXT3_SB(sb);
         struct ext3_super_block *es = sbi->s_es;
         unsigned long def_mount_opts;
@@ -2910,7 +2909,7 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id,
                 return -EINVAL;
 
         /* Quotafile not on the same filesystem? */
-        if (path->mnt->mnt_sb != sb)
+        if (path->dentry->d_sb != sb)
                 return -EXDEV;
         /* Journaling quota? */
         if (EXT3_SB(sb)->s_qf_names[type]) {
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 5b0e26a1272d..1554b15f91bc 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1819,7 +1819,7 @@ extern int ext4fs_dirhash(const char *name, int len, struct
                           dx_hash_info *hinfo);
 
 /* ialloc.c */
-extern struct inode *ext4_new_inode(handle_t *, struct inode *, int,
+extern struct inode *ext4_new_inode(handle_t *, struct inode *, umode_t,
                                     const struct qstr *qstr, __u32 goal,
                                     uid_t *owner);
 extern void ext4_free_inode(handle_t *, struct inode *);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 00beb4f9cc4f..4637af036d9c 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -351,7 +351,7 @@ static void get_orlov_stats(struct super_block *sb, ext4_group_t g,
  */
 
 static int find_group_orlov(struct super_block *sb, struct inode *parent,
-                            ext4_group_t *group, int mode,
+                            ext4_group_t *group, umode_t mode,
                             const struct qstr *qstr)
 {
         ext4_group_t parent_group = EXT4_I(parent)->i_block_group;
@@ -497,7 +497,7 @@ fallback_retry:
 }
 
 static int find_group_other(struct super_block *sb, struct inode *parent,
-                            ext4_group_t *group, int mode)
+                            ext4_group_t *group, umode_t mode)
 {
         ext4_group_t parent_group = EXT4_I(parent)->i_block_group;
         ext4_group_t i, last, ngroups = ext4_get_groups_count(sb);
@@ -602,7 +602,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent,
  */
 static int ext4_claim_inode(struct super_block *sb,
                         struct buffer_head *inode_bitmap_bh,
-                        unsigned long ino, ext4_group_t group, int mode)
+                        unsigned long ino, ext4_group_t group, umode_t mode)
 {
         int free = 0, retval = 0, count;
         struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -690,7 +690,7 @@ err_ret:
  * For other inodes, search forward from the parent directory's block
  * group to find a free inode.
  */
-struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode,
+struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, umode_t mode,
                              const struct qstr *qstr, __u32 goal, uid_t *owner)
 {
         struct super_block *sb;
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a56796814d6a..d37b3bb2a3b8 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -45,7 +45,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 if (get_user(flags, (int __user *) arg))
                         return -EFAULT;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -134,7 +134,7 @@ flags_err:
                         err = ext4_ext_migrate(inode);
 flags_out:
                 mutex_unlock(&inode->i_mutex);
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         case EXT4_IOC_GETVERSION:
@@ -150,7 +150,7 @@ flags_out:
                 if (!inode_owner_or_capable(inode))
                         return -EPERM;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
                 if (get_user(generation, (int __user *) arg)) {
@@ -171,7 +171,7 @@ flags_out:
                 }
                 ext4_journal_stop(handle);
 setversion_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         case EXT4_IOC_GROUP_EXTEND: {
@@ -192,7 +192,7 @@ setversion_out:
                         return -EOPNOTSUPP;
                 }
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -204,7 +204,7 @@ setversion_out:
                 }
                 if (err == 0)
                         err = err2;
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 ext4_resize_end(sb);
 
                 return err;
@@ -240,13 +240,13 @@ setversion_out:
                         return -EOPNOTSUPP;
                 }
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         goto mext_out;
 
                 err = ext4_move_extents(filp, donor_filp, me.orig_start,
                                         me.donor_start, me.len, &me.moved_len);
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 if (me.moved_len > 0)
                         file_remove_suid(donor_filp);
 
@@ -277,7 +277,7 @@ mext_out:
                         return -EOPNOTSUPP;
                 }
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -289,7 +289,7 @@ mext_out:
                 }
                 if (err == 0)
                         err = err2;
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 ext4_resize_end(sb);
 
                 return err;
@@ -301,7 +301,7 @@ mext_out:
                 if (!inode_owner_or_capable(inode))
                         return -EACCES;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
                 /*
@@ -313,7 +313,7 @@ mext_out:
                 mutex_lock(&(inode->i_mutex));
                 err = ext4_ext_migrate(inode);
                 mutex_unlock(&(inode->i_mutex));
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
 
@@ -323,11 +323,11 @@ mext_out:
                 if (!inode_owner_or_capable(inode))
                         return -EACCES;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
                 err = ext4_alloc_da_blocks(inode);
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
 
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index aa4c782c9dd7..86edc45b52a4 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1736,7 +1736,7 @@ static int ext4_add_nondir(handle_t *handle,
  * If the create succeeds, we fill in the inode information
  * with d_instantiate().
  */
-static int ext4_create(struct inode *dir, struct dentry *dentry, int mode,
+static int ext4_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                        struct nameidata *nd)
 {
         handle_t *handle;
@@ -1770,7 +1770,7 @@ retry:
 }
 
 static int ext4_mknod(struct inode *dir, struct dentry *dentry,
-                      int mode, dev_t rdev)
+                      umode_t mode, dev_t rdev)
 {
         handle_t *handle;
         struct inode *inode;
@@ -1806,7 +1806,7 @@ retry:
         return err;
 }
 
-static int ext4_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int ext4_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         handle_t *handle;
         struct inode *inode;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 3e1329e2f826..6733b3736b3b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -930,7 +930,6 @@ static int ext4_drop_inode(struct inode *inode)
 static void ext4_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
 }
 
@@ -1033,11 +1032,11 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
  *  - it's set to a non-default value OR
  *  - if the per-sb default is different from the global default
  */
-static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int ext4_show_options(struct seq_file *seq, struct dentry *root)
 {
         int def_errors;
         unsigned long def_mount_opts;
-        struct super_block *sb = vfs->mnt_sb;
+        struct super_block *sb = root->d_sb;
         struct ext4_sb_info *sbi = EXT4_SB(sb);
         struct ext4_super_block *es = sbi->s_es;
 
@@ -4782,7 +4781,7 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
                 return -EINVAL;
 
         /* Quotafile not on the same filesystem? */
-        if (path->mnt->mnt_sb != sb)
+        if (path->dentry->d_sb != sb)
                 return -EXDEV;
         /* Journaling quota? */
         if (EXT4_SB(sb)->s_qf_names[type]) {
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 1510a4d51990..66994f316e18 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -141,7 +141,7 @@ static inline struct msdos_inode_info *MSDOS_I(struct inode *inode)
 static inline int fat_mode_can_hold_ro(struct inode *inode)
 {
         struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
-        mode_t mask;
+        umode_t mask;
 
         if (S_ISDIR(inode->i_mode)) {
                 if (!sbi->options.rodir)
@@ -156,8 +156,8 @@ static inline int fat_mode_can_hold_ro(struct inode *inode)
 }
 
 /* Convert attribute bits and a mask to the UNIX mode. */
-static inline mode_t fat_make_mode(struct msdos_sb_info *sbi,
-                                   u8 attrs, mode_t mode)
+static inline umode_t fat_make_mode(struct msdos_sb_info *sbi,
+                                   u8 attrs, umode_t mode)
 {
         if (attrs & ATTR_RO && !((attrs & ATTR_DIR) && !sbi->options.rodir))
                 mode &= ~S_IWUGO;
diff --git a/fs/fat/file.c b/fs/fat/file.c
index c118acf16e43..a71fe3715ee8 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -44,7 +44,7 @@ static int fat_ioctl_set_attributes(struct file *file, u32 __user *user_attr)
                 goto out;
 
         mutex_lock(&inode->i_mutex);
-        err = mnt_want_write(file->f_path.mnt);
+        err = mnt_want_write_file(file);
         if (err)
                 goto out_unlock_inode;
 
@@ -108,7 +108,7 @@ static int fat_ioctl_set_attributes(struct file *file, u32 __user *user_attr)
         fat_save_attrs(inode, attr);
         mark_inode_dirty(inode);
 out_drop_write:
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
 out_unlock_inode:
         mutex_unlock(&inode->i_mutex);
 out:
@@ -314,7 +314,7 @@ EXPORT_SYMBOL_GPL(fat_getattr);
 static int fat_sanitize_mode(const struct msdos_sb_info *sbi,
                              struct inode *inode, umode_t *mode_ptr)
 {
-        mode_t mask, perm;
+        umode_t mask, perm;
 
         /*
          * Note, the basic check is already done by a caller of
@@ -351,7 +351,7 @@ static int fat_sanitize_mode(const struct msdos_sb_info *sbi,
 
 static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode)
 {
-        mode_t allow_utime = sbi->options.allow_utime;
+        umode_t allow_utime = sbi->options.allow_utime;
 
         if (current_fsuid() != inode->i_uid) {
                 if (in_group_p(inode->i_gid))
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 808cac7edcfb..7873797cc76a 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -518,7 +518,6 @@ static struct inode *fat_alloc_inode(struct super_block *sb)
 static void fat_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(fat_inode_cachep, MSDOS_I(inode));
 }
 
@@ -672,7 +671,7 @@ int fat_sync_inode(struct inode *inode)
 
 EXPORT_SYMBOL_GPL(fat_sync_inode);
 
-static int fat_show_options(struct seq_file *m, struct vfsmount *mnt);
+static int fat_show_options(struct seq_file *m, struct dentry *root);
 static const struct super_operations fat_sops = {
         .alloc_inode    = fat_alloc_inode,
         .destroy_inode  = fat_destroy_inode,
@@ -811,9 +810,9 @@ static const struct export_operations fat_export_ops = {
         .get_parent     = fat_get_parent,
 };
 
-static int fat_show_options(struct seq_file *m, struct vfsmount *mnt)
+static int fat_show_options(struct seq_file *m, struct dentry *root)
 {
-        struct msdos_sb_info *sbi = MSDOS_SB(mnt->mnt_sb);
+        struct msdos_sb_info *sbi = MSDOS_SB(root->d_sb);
         struct fat_mount_options *opts = &sbi->options;
         int isvfat = opts->isvfat;
 
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index 216b419f30e2..c5938c9084b9 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -264,7 +264,7 @@ static int msdos_add_entry(struct inode *dir, const unsigned char *name,
 }
 
 /***** Create a file */
-static int msdos_create(struct inode *dir, struct dentry *dentry, int mode,
+static int msdos_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                         struct nameidata *nd)
 {
         struct super_block *sb = dir->i_sb;
@@ -346,7 +346,7 @@ out:
 }
 
 /***** Make a directory */
-static int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int msdos_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct super_block *sb = dir->i_sb;
         struct fat_slot_info sinfo;
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index a87a65663c25..3a444b4e2368 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -781,7 +781,7 @@ error:
         return ERR_PTR(err);
 }
 
-static int vfat_create(struct inode *dir, struct dentry *dentry, int mode,
+static int vfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                        struct nameidata *nd)
 {
         struct super_block *sb = dir->i_sb;
@@ -870,7 +870,7 @@ out:
         return err;
 }
 
-static int vfat_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int vfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct super_block *sb = dir->i_sb;
         struct inode *inode;
diff --git a/fs/fhandle.c b/fs/fhandle.c
index 6b088641f5bf..a48e4a139be1 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -10,6 +10,7 @@
 #include <linux/personality.h>
 #include <asm/uaccess.h>
 #include "internal.h"
+#include "mount.h"
 
 static long do_sys_name_to_handle(struct path *path,
                                   struct file_handle __user *ufh,
@@ -24,8 +25,8 @@ static long do_sys_name_to_handle(struct path *path,
          * We need t make sure wether the file system
          * support decoding of the file handle
          */
-        if (!path->mnt->mnt_sb->s_export_op ||
-            !path->mnt->mnt_sb->s_export_op->fh_to_dentry)
+        if (!path->dentry->d_sb->s_export_op ||
+            !path->dentry->d_sb->s_export_op->fh_to_dentry)
                 return -EOPNOTSUPP;
 
         if (copy_from_user(&f_handle, ufh, sizeof(struct file_handle)))
@@ -66,7 +67,8 @@ static long do_sys_name_to_handle(struct path *path,
         } else
                 retval = 0;
         /* copy the mount id */
-        if (copy_to_user(mnt_id, &path->mnt->mnt_id, sizeof(*mnt_id)) ||
+        if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
+                         sizeof(*mnt_id)) ||
             copy_to_user(ufh, handle,
                          sizeof(struct file_handle) + handle_bytes))
                 retval = -EFAULT;
diff --git a/fs/file_table.c b/fs/file_table.c
index c322794f7360..20002e39754d 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -474,29 +474,6 @@ void file_sb_list_del(struct file *file)
 
 #endif
 
-int fs_may_remount_ro(struct super_block *sb)
-{
-        struct file *file;
-        /* Check that no files are currently opened for writing. */
-        lg_global_lock(files_lglock);
-        do_file_list_for_each_entry(sb, file) {
-                struct inode *inode = file->f_path.dentry->d_inode;
-
-                /* File with pending delete? */
-                if (inode->i_nlink == 0)
-                        goto too_bad;
-
-                /* Writeable file? */
-                if (S_ISREG(inode->i_mode) && (file->f_mode & FMODE_WRITE))
-                        goto too_bad;
-        } while_file_list_for_each_entry;
-        lg_global_unlock(files_lglock);
-        return 1; /* Tis' cool bro. */
-too_bad:
-        lg_global_unlock(files_lglock);
-        return 0;
-}
-
 /**
  *      mark_files_ro - mark all files read-only
  *      @sb: superblock in question
diff --git a/fs/filesystems.c b/fs/filesystems.c
index 0845f84f2a5f..96f24286667a 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -74,7 +74,6 @@ int register_filesystem(struct file_system_type * fs)
         BUG_ON(strchr(fs->name, '.'));
         if (fs->next)
                 return -EBUSY;
-        INIT_LIST_HEAD(&fs->fs_supers);
         write_lock(&file_systems_lock);
         p = find_filesystem(fs->name, strlen(fs->name));
         if (*p)
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index 7b2af5abe2fa..cf9ef918a2a9 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -187,10 +187,10 @@ vxfs_stiget(struct super_block *sbp, ino_t ino)
  *  vxfs_transmod returns a Linux mode_t for a given
  *  VxFS inode structure.
  */
-static __inline__ mode_t
+static __inline__ umode_t
 vxfs_transmod(struct vxfs_inode_info *vip)
 {
-        mode_t                  ret = vip->vii_mode & ~VXFS_TYPE_MASK;
+        umode_t                 ret = vip->vii_mode & ~VXFS_TYPE_MASK;
 
         if (VXFS_ISFIFO(vip))
                 ret |= S_IFIFO;
@@ -340,7 +340,6 @@ vxfs_iget(struct super_block *sbp, ino_t ino)
 static void vxfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(vxfs_inode_cachep, inode->i_private);
 }
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 517f211a3bd4..80a4574028f1 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -25,7 +25,6 @@
 #include <linux/writeback.h>
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
-#include <linux/buffer_head.h>
 #include <linux/tracepoint.h>
 #include "internal.h"
 
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 9f63e493a9b6..5ddd6ea8f839 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -369,8 +369,8 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
  * If the filesystem doesn't support this, then fall back to separate
  * 'mknod' + 'open' requests.
  */
-static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
-                            struct nameidata *nd)
+static int fuse_create_open(struct inode *dir, struct dentry *entry,
+                            umode_t mode, struct nameidata *nd)
 {
         int err;
         struct inode *inode;
@@ -480,7 +480,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
  */
 static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req,
                             struct inode *dir, struct dentry *entry,
-                            int mode)
+                            umode_t mode)
 {
         struct fuse_entry_out outarg;
         struct inode *inode;
@@ -547,7 +547,7 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req,
         return err;
 }
 
-static int fuse_mknod(struct inode *dir, struct dentry *entry, int mode,
+static int fuse_mknod(struct inode *dir, struct dentry *entry, umode_t mode,
                       dev_t rdev)
 {
         struct fuse_mknod_in inarg;
@@ -573,7 +573,7 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, int mode,
         return create_new_entry(fc, req, dir, entry, mode);
 }
 
-static int fuse_create(struct inode *dir, struct dentry *entry, int mode,
+static int fuse_create(struct inode *dir, struct dentry *entry, umode_t mode,
                        struct nameidata *nd)
 {
         if (nd) {
@@ -585,7 +585,7 @@ static int fuse_create(struct inode *dir, struct dentry *entry, int mode,
         return fuse_mknod(dir, entry, mode, 0);
 }
 
-static int fuse_mkdir(struct inode *dir, struct dentry *entry, int mode)
+static int fuse_mkdir(struct inode *dir, struct dentry *entry, umode_t mode)
 {
         struct fuse_mkdir_in inarg;
         struct fuse_conn *fc = get_fuse_conn(dir);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index cf6db0a93219..1964da0257d9 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -80,7 +80,7 @@ struct fuse_inode {
 
         /** The sticky bit in inode->i_mode may have been removed, so
             preserve the original mode */
-        mode_t orig_i_mode;
+        umode_t orig_i_mode;
 
         /** Version of last attribute change */
         u64 attr_version;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index aa83109b9431..64cf8d07393e 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -107,7 +107,6 @@ static struct inode *fuse_alloc_inode(struct super_block *sb)
 static void fuse_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(fuse_inode_cachep, inode);
 }
 
@@ -498,9 +497,10 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d, int is_bdev)
         return 1;
 }
 
-static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
+static int fuse_show_options(struct seq_file *m, struct dentry *root)
 {
-        struct fuse_conn *fc = get_fuse_conn_super(mnt->mnt_sb);
+        struct super_block *sb = root->d_sb;
+        struct fuse_conn *fc = get_fuse_conn_super(sb);
 
         seq_printf(m, ",user_id=%u", fc->user_id);
         seq_printf(m, ",group_id=%u", fc->group_id);
@@ -510,9 +510,8 @@ 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);
+        if (sb->s_bdev && sb->s_blocksize != FUSE_DEFAULT_BLKSIZE)
+                seq_printf(m, ",blksize=%lu", sb->s_blocksize);
         return 0;
 }
 
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index ce36a56dfeac..b8927d4f3bf2 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -223,7 +223,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
         int error;
         u32 new_flags, flags;
 
-        error = mnt_want_write(filp->f_path.mnt);
+        error = mnt_want_write_file(filp);
         if (error)
                 return error;
 
@@ -285,7 +285,7 @@ out_trans_end:
 out:
         gfs2_glock_dq_uninit(&gh);
 out_drop_write:
-        mnt_drop_write(filp->f_path.mnt);
+        mnt_drop_write_file(filp);
         return error;
 }
 
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index cfd4959b218c..4b0e59e0a249 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -333,7 +333,7 @@ out:
  */
 
 static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
-                     unsigned int mode)
+                     umode_t mode)
 {
         int error;
 
@@ -364,7 +364,7 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
         return 0;
 }
 
-static void munge_mode_uid_gid(struct gfs2_inode *dip, unsigned int *mode,
+static void munge_mode_uid_gid(struct gfs2_inode *dip, umode_t *mode,
                                unsigned int *uid, unsigned int *gid)
 {
         if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir &&
@@ -447,7 +447,7 @@ static void gfs2_init_dir(struct buffer_head *dibh,
  */
 
 static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
-                        const struct gfs2_inum_host *inum, unsigned int mode,
+                        const struct gfs2_inum_host *inum, umode_t mode,
                         unsigned int uid, unsigned int gid,
                         const u64 *generation, dev_t dev, const char *symname,
                         unsigned size, struct buffer_head **bhp)
@@ -516,7 +516,7 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
 }
 
 static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
-                       unsigned int mode, const struct gfs2_inum_host *inum,
+                       umode_t mode, const struct gfs2_inum_host *inum,
                        const u64 *generation, dev_t dev, const char *symname,
                        unsigned int size, struct buffer_head **bhp)
 {
@@ -659,7 +659,7 @@ static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip,
  */
 
 static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
-                             unsigned int mode, dev_t dev, const char *symname,
+                             umode_t mode, dev_t dev, const char *symname,
                              unsigned int size, int excl)
 {
         const struct qstr *name = &dentry->d_name;
@@ -760,7 +760,7 @@ fail:
  */
 
 static int gfs2_create(struct inode *dir, struct dentry *dentry,
-                       int mode, struct nameidata *nd)
+                       umode_t mode, struct nameidata *nd)
 {
         int excl = 0;
         if (nd && (nd->flags & LOOKUP_EXCL))
@@ -1129,7 +1129,7 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
  * Returns: errno
  */
 
-static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         return gfs2_create_inode(dir, dentry, S_IFDIR | mode, 0, NULL, 0, 0);
 }
@@ -1143,7 +1143,7 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
  *
  */
 
-static int gfs2_mknod(struct inode *dir, struct dentry *dentry, int mode,
+static int gfs2_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
                       dev_t dev)
 {
         return gfs2_create_inode(dir, dentry, mode, dev, NULL, 0, 0);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 71e420989f77..10c7733a899b 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1284,18 +1284,18 @@ static int is_ancestor(const struct dentry *d1, const struct dentry *d2)
 /**
  * gfs2_show_options - Show mount options for /proc/mounts
  * @s: seq_file structure
- * @mnt: vfsmount
+ * @root: root of this (sub)tree
  *
  * Returns: 0 on success or error code
  */
 
-static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
+static int gfs2_show_options(struct seq_file *s, struct dentry *root)
 {
-        struct gfs2_sbd *sdp = mnt->mnt_sb->s_fs_info;
+        struct gfs2_sbd *sdp = root->d_sb->s_fs_info;
         struct gfs2_args *args = &sdp->sd_args;
         int val;
 
-        if (is_ancestor(mnt->mnt_root, sdp->sd_master_dir))
+        if (is_ancestor(root, sdp->sd_master_dir))
                 seq_printf(s, ",meta");
         if (args->ar_lockproto[0])
                 seq_printf(s, ",lockproto=%s", args->ar_lockproto);
@@ -1582,7 +1582,6 @@ static struct inode *gfs2_alloc_inode(struct super_block *sb)
 static void gfs2_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(gfs2_inode_cachep, inode);
 }
 
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index bce4eef91a06..62fc14ea4b73 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -186,7 +186,7 @@ static int hfs_dir_release(struct inode *inode, struct file *file)
  * a directory and return a corresponding inode, given the inode for
  * the directory and the name (and its length) of the new file.
  */
-static int hfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int hfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                       struct nameidata *nd)
 {
         struct inode *inode;
@@ -216,7 +216,7 @@ static int hfs_create(struct inode *dir, struct dentry *dentry, int mode,
  * in a directory, given the inode for the parent directory and the
  * name (and its length) of the new directory.
  */
-static int hfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int hfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode *inode;
         int res;
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index ad97c2d58287..1bf967c6bfdc 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -184,7 +184,7 @@ extern int hfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 extern const struct address_space_operations hfs_aops;
 extern const struct address_space_operations hfs_btree_aops;
 
-extern struct inode *hfs_new_inode(struct inode *, struct qstr *, int);
+extern struct inode *hfs_new_inode(struct inode *, struct qstr *, umode_t);
 extern void hfs_inode_write_fork(struct inode *, struct hfs_extent *, __be32 *, __be32 *);
 extern int hfs_write_inode(struct inode *, struct writeback_control *);
 extern int hfs_inode_setattr(struct dentry *, struct iattr *);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index a1a9fdcd2a00..737dbeb64320 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -169,7 +169,7 @@ const struct address_space_operations hfs_aops = {
 /*
  * hfs_new_inode
  */
-struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
+struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, umode_t mode)
 {
         struct super_block *sb = dir->i_sb;
         struct inode *inode = new_inode(sb);
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 1b55f704fb22..8137fb3e6780 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -133,9 +133,9 @@ static int hfs_remount(struct super_block *sb, int *flags, char *data)
         return 0;
 }
 
-static int hfs_show_options(struct seq_file *seq, struct vfsmount *mnt)
+static int hfs_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct hfs_sb_info *sbi = HFS_SB(mnt->mnt_sb);
+        struct hfs_sb_info *sbi = HFS_SB(root->d_sb);
 
         if (sbi->s_creator != cpu_to_be32(0x3f3f3f3f))
                 seq_printf(seq, ",creator=%.4s", (char *)&sbi->s_creator);
@@ -170,7 +170,6 @@ static struct inode *hfs_alloc_inode(struct super_block *sb)
 static void hfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(hfs_inode_cachep, HFS_I(inode));
 }
 
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 4536cd3f15ae..88e155f895c6 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -424,7 +424,7 @@ out:
 }
 
 static int hfsplus_mknod(struct inode *dir, struct dentry *dentry,
-                         int mode, dev_t rdev)
+                         umode_t mode, dev_t rdev)
 {
         struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
         struct inode *inode;
@@ -453,13 +453,13 @@ out:
         return res;
 }
 
-static int hfsplus_create(struct inode *dir, struct dentry *dentry, int mode,
+static int hfsplus_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                           struct nameidata *nd)
 {
         return hfsplus_mknod(dir, dentry, mode, 0);
 }
 
-static int hfsplus_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int hfsplus_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         return hfsplus_mknod(dir, dentry, mode | S_IFDIR, 0);
 }
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index d7674d051f52..21a5b7fc6db4 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -402,7 +402,7 @@ void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
 void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
 int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *);
 int hfsplus_cat_write_inode(struct inode *);
-struct inode *hfsplus_new_inode(struct super_block *, int);
+struct inode *hfsplus_new_inode(struct super_block *, umode_t);
 void hfsplus_delete_inode(struct inode *);
 int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
                        int datasync);
@@ -419,7 +419,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size);
 int hfsplus_parse_options(char *, struct hfsplus_sb_info *);
 int hfsplus_parse_options_remount(char *input, int *force);
 void hfsplus_fill_defaults(struct hfsplus_sb_info *);
-int hfsplus_show_options(struct seq_file *, struct vfsmount *);
+int hfsplus_show_options(struct seq_file *, struct dentry *);
 
 /* super.c */
 struct inode *hfsplus_iget(struct super_block *, unsigned long);
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 40e1413be4cf..6643b242bdd7 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -378,7 +378,7 @@ static const struct file_operations hfsplus_file_operations = {
         .unlocked_ioctl = hfsplus_ioctl,
 };
 
-struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
+struct inode *hfsplus_new_inode(struct super_block *sb, umode_t mode)
 {
         struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
         struct inode *inode = new_inode(sb);
diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c
index fbaa6690c8e0..f66c7655b3f7 100644
--- a/fs/hfsplus/ioctl.c
+++ b/fs/hfsplus/ioctl.c
@@ -43,7 +43,7 @@ static int hfsplus_ioctl_setflags(struct file *file, int __user *user_flags)
         unsigned int flags;
         int err = 0;
 
-        err = mnt_want_write(file->f_path.mnt);
+        err = mnt_want_write_file(file);
         if (err)
                 goto out;
 
@@ -94,7 +94,7 @@ static int hfsplus_ioctl_setflags(struct file *file, int __user *user_flags)
 out_unlock_inode:
         mutex_unlock(&inode->i_mutex);
 out_drop_write:
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
 out:
         return err;
 }
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index bb62a5882147..06fa5618600c 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -206,9 +206,9 @@ done:
         return 1;
 }
 
-int hfsplus_show_options(struct seq_file *seq, struct vfsmount *mnt)
+int hfsplus_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct hfsplus_sb_info *sbi = HFSPLUS_SB(mnt->mnt_sb);
+        struct hfsplus_sb_info *sbi = HFSPLUS_SB(root->d_sb);
 
         if (sbi->creator != HFSPLUS_DEF_CR_TYPE)
                 seq_printf(seq, ",creator=%.4s", (char *)&sbi->creator);
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index d24a9b666a23..edf0a801446b 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -558,7 +558,6 @@ static void hfsplus_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
 
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(hfsplus_inode_cachep, HFSPLUS_I(inode));
 }
 
diff --git a/fs/hostfs/hostfs.h b/fs/hostfs/hostfs.h
index bf15a43016b9..3cbfa93cd782 100644
--- a/fs/hostfs/hostfs.h
+++ b/fs/hostfs/hostfs.h
@@ -39,7 +39,7 @@
 
 struct hostfs_iattr {
         unsigned int    ia_valid;
-        mode_t          ia_mode;
+        unsigned short  ia_mode;
         uid_t           ia_uid;
         gid_t           ia_gid;
         loff_t          ia_size;
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 2f72da5ae686..e130bd46d671 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -250,7 +250,6 @@ static void hostfs_evict_inode(struct inode *inode)
 static void hostfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kfree(HOSTFS_I(inode));
 }
 
@@ -259,9 +258,9 @@ static void hostfs_destroy_inode(struct inode *inode)
         call_rcu(&inode->i_rcu, hostfs_i_callback);
 }
 
-static int hostfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int hostfs_show_options(struct seq_file *seq, struct dentry *root)
 {
-        const char *root_path = vfs->mnt_sb->s_fs_info;
+        const char *root_path = root->d_sb->s_fs_info;
         size_t offset = strlen(root_ino) + 1;
 
         if (strlen(root_path) > offset)
@@ -552,7 +551,7 @@ static int read_name(struct inode *ino, char *name)
         return 0;
 }
 
-int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
+int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                   struct nameidata *nd)
 {
         struct inode *inode;
@@ -677,7 +676,7 @@ int hostfs_symlink(struct inode *ino, struct dentry *dentry, const char *to)
         return err;
 }
 
-int hostfs_mkdir(struct inode *ino, struct dentry *dentry, int mode)
+int hostfs_mkdir(struct inode *ino, struct dentry *dentry, umode_t mode)
 {
         char *file;
         int err;
@@ -701,7 +700,7 @@ int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
         return err;
 }
 
-int hostfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+static int hostfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         struct inode *inode;
         char *name;
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index ea91fcb0ef9b..30dd7b10b507 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -8,7 +8,7 @@
 #include <linux/sched.h>
 #include "hpfs_fn.h"
 
-static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         const unsigned char *name = dentry->d_name.name;
         unsigned len = dentry->d_name.len;
@@ -115,7 +115,7 @@ bail:
         return err;
 }
 
-static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
+static int hpfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
 {
         const unsigned char *name = dentry->d_name.name;
         unsigned len = dentry->d_name.len;
@@ -201,7 +201,7 @@ bail:
         return err;
 }
 
-static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
+static int hpfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
         const unsigned char *name = dentry->d_name.name;
         unsigned len = dentry->d_name.len;
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 98580a3b5005..3690467c944e 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -181,7 +181,6 @@ static struct inode *hpfs_alloc_inode(struct super_block *sb)
 static void hpfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(hpfs_inode_cachep, hpfs_i(inode));
 }
 
diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c
index f590b1160c6c..d92f4ce80925 100644
--- a/fs/hppfs/hppfs.c
+++ b/fs/hppfs/hppfs.c
@@ -622,7 +622,6 @@ void hppfs_evict_inode(struct inode *ino)
 static void hppfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kfree(HPPFS_I(inode));
 }
 
@@ -726,7 +725,7 @@ static int hppfs_fill_super(struct super_block *sb, void *d, int silent)
         sb->s_fs_info = proc_mnt;
 
         err = -ENOMEM;
-        root_inode = get_inode(sb, dget(proc_mnt->mnt_sb->s_root));
+        root_inode = get_inode(sb, dget(proc_mnt->mnt_root));
         if (!root_inode)
                 goto out_mntput;
 
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 0be5a78598d0..e425ad9d0490 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -447,8 +447,8 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
         return 0;
 }
 
-static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid, 
-                                        gid_t gid, int mode, dev_t dev)
+static struct inode *hugetlbfs_get_root(struct super_block *sb,
+                                        struct hugetlbfs_config *config)
 {
         struct inode *inode;
 
@@ -456,9 +456,31 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
         if (inode) {
                 struct hugetlbfs_inode_info *info;
                 inode->i_ino = get_next_ino();
-                inode->i_mode = mode;
-                inode->i_uid = uid;
-                inode->i_gid = gid;
+                inode->i_mode = S_IFDIR | config->mode;
+                inode->i_uid = config->uid;
+                inode->i_gid = config->gid;
+                inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+                info = HUGETLBFS_I(inode);
+                mpol_shared_policy_init(&info->policy, NULL);
+                inode->i_op = &hugetlbfs_dir_inode_operations;
+                inode->i_fop = &simple_dir_operations;
+                /* directory inodes start off with i_nlink == 2 (for "." entry) */
+                inc_nlink(inode);
+        }
+        return inode;
+}
+
+static struct inode *hugetlbfs_get_inode(struct super_block *sb,
+                                        struct inode *dir,
+                                        umode_t mode, dev_t dev)
+{
+        struct inode *inode;
+
+        inode = new_inode(sb);
+        if (inode) {
+                struct hugetlbfs_inode_info *info;
+                inode->i_ino = get_next_ino();
+                inode_init_owner(inode, dir, mode);
                 inode->i_mapping->a_ops = &hugetlbfs_aops;
                 inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
                 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -500,20 +522,12 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
  * File creation. Allocate an inode, and we're done..
  */
 static int hugetlbfs_mknod(struct inode *dir,
-                        struct dentry *dentry, int mode, dev_t dev)
+                        struct dentry *dentry, umode_t mode, dev_t dev)
 {
         struct inode *inode;
         int error = -ENOSPC;
-        gid_t gid;
-
-        if (dir->i_mode & S_ISGID) {
-                gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else {
-                gid = current_fsgid();
-        }
-        inode = hugetlbfs_get_inode(dir->i_sb, current_fsuid(), gid, mode, dev);
+
+        inode = hugetlbfs_get_inode(dir->i_sb, dir, mode, dev);
         if (inode) {
                 dir->i_ctime = dir->i_mtime = CURRENT_TIME;
                 d_instantiate(dentry, inode);
@@ -523,7 +537,7 @@ static int hugetlbfs_mknod(struct inode *dir,
         return error;
 }
 
-static int hugetlbfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int hugetlbfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int retval = hugetlbfs_mknod(dir, dentry, mode | S_IFDIR, 0);
         if (!retval)
@@ -531,7 +545,7 @@ static int hugetlbfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         return retval;
 }
 
-static int hugetlbfs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
+static int hugetlbfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
 {
         return hugetlbfs_mknod(dir, dentry, mode | S_IFREG, 0);
 }
@@ -541,15 +555,8 @@ static int hugetlbfs_symlink(struct inode *dir,
 {
         struct inode *inode;
         int error = -ENOSPC;
-        gid_t gid;
-
-        if (dir->i_mode & S_ISGID)
-                gid = dir->i_gid;
-        else
-                gid = current_fsgid();
 
-        inode = hugetlbfs_get_inode(dir->i_sb, current_fsuid(),
-                                        gid, S_IFLNK|S_IRWXUGO, 0);
+        inode = hugetlbfs_get_inode(dir->i_sb, dir, S_IFLNK|S_IRWXUGO, 0);
         if (inode) {
                 int l = strlen(symname)+1;
                 error = page_symlink(inode, symname, l);
@@ -666,7 +673,6 @@ static struct inode *hugetlbfs_alloc_inode(struct super_block *sb)
 static void hugetlbfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode));
 }
 
@@ -858,8 +864,7 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
         sb->s_magic = HUGETLBFS_MAGIC;
         sb->s_op = &hugetlbfs_ops;
         sb->s_time_gran = 1;
-        inode = hugetlbfs_get_inode(sb, config.uid, config.gid,
-                                        S_IFDIR | config.mode, 0);
+        inode = hugetlbfs_get_root(sb, &config);
         if (!inode)
                 goto out_free;
 
@@ -957,8 +962,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size,
 
         path.mnt = mntget(hugetlbfs_vfsmount);
         error = -ENOSPC;
-        inode = hugetlbfs_get_inode(root->d_sb, current_fsuid(),
-                                current_fsgid(), S_IFREG | S_IRWXUGO, 0);
+        inode = hugetlbfs_get_inode(root->d_sb, NULL, S_IFREG | S_IRWXUGO, 0);
         if (!inode)
                 goto out_dentry;
 
diff --git a/fs/inode.c b/fs/inode.c
index ee4e66b998f4..87535753ab04 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -26,6 +26,7 @@
 #include <linux/ima.h>
 #include <linux/cred.h>
 #include <linux/buffer_head.h> /* for inode_has_buffers */
+#include <linux/ratelimit.h>
 #include "internal.h"
 
 /*
@@ -191,6 +192,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
         }
         inode->i_private = NULL;
         inode->i_mapping = mapping;
+        INIT_LIST_HEAD(&inode->i_dentry);       /* buggered by rcu freeing */
 #ifdef CONFIG_FS_POSIX_ACL
         inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED;
 #endif
@@ -241,6 +243,11 @@ void __destroy_inode(struct inode *inode)
         BUG_ON(inode_has_buffers(inode));
         security_inode_free(inode);
         fsnotify_inode_delete(inode);
+        if (!inode->i_nlink) {
+                WARN_ON(atomic_long_read(&inode->i_sb->s_remove_count) == 0);
+                atomic_long_dec(&inode->i_sb->s_remove_count);
+        }
+
 #ifdef CONFIG_FS_POSIX_ACL
         if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED)
                 posix_acl_release(inode->i_acl);
@@ -254,7 +261,6 @@ EXPORT_SYMBOL(__destroy_inode);
 static void i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(inode_cachep, inode);
 }
 
@@ -268,6 +274,85 @@ static void destroy_inode(struct inode *inode)
                 call_rcu(&inode->i_rcu, i_callback);
 }
 
+/**
+ * drop_nlink - directly drop an inode's link count
+ * @inode: inode
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.  In cases
+ * where we are attempting to track writes to the
+ * filesystem, a decrement to zero means an imminent
+ * write when the file is truncated and actually unlinked
+ * on the filesystem.
+ */
+void drop_nlink(struct inode *inode)
+{
+        WARN_ON(inode->i_nlink == 0);
+        inode->__i_nlink--;
+        if (!inode->i_nlink)
+                atomic_long_inc(&inode->i_sb->s_remove_count);
+}
+EXPORT_SYMBOL(drop_nlink);
+
+/**
+ * clear_nlink - directly zero an inode's link count
+ * @inode: inode
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.  See
+ * drop_nlink() for why we care about i_nlink hitting zero.
+ */
+void clear_nlink(struct inode *inode)
+{
+        if (inode->i_nlink) {
+                inode->__i_nlink = 0;
+                atomic_long_inc(&inode->i_sb->s_remove_count);
+        }
+}
+EXPORT_SYMBOL(clear_nlink);
+
+/**
+ * set_nlink - directly set an inode's link count
+ * @inode: inode
+ * @nlink: new nlink (should be non-zero)
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.
+ */
+void set_nlink(struct inode *inode, unsigned int nlink)
+{
+        if (!nlink) {
+                printk_ratelimited(KERN_INFO
+                        "set_nlink() clearing i_nlink on %s inode %li\n",
+                        inode->i_sb->s_type->name, inode->i_ino);
+                clear_nlink(inode);
+        } else {
+                /* Yes, some filesystems do change nlink from zero to one */
+                if (inode->i_nlink == 0)
+                        atomic_long_dec(&inode->i_sb->s_remove_count);
+
+                inode->__i_nlink = nlink;
+        }
+}
+EXPORT_SYMBOL(set_nlink);
+
+/**
+ * inc_nlink - directly increment an inode's link count
+ * @inode: inode
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.  Currently,
+ * it is only here for parity with dec_nlink().
+ */
+void inc_nlink(struct inode *inode)
+{
+        if (WARN_ON(inode->i_nlink == 0))
+                atomic_long_dec(&inode->i_sb->s_remove_count);
+
+        inode->__i_nlink++;
+}
+EXPORT_SYMBOL(inc_nlink);
+
 void address_space_init_once(struct address_space *mapping)
 {
         memset(mapping, 0, sizeof(*mapping));
@@ -290,7 +375,6 @@ void inode_init_once(struct inode *inode)
 {
         memset(inode, 0, sizeof(*inode));
         INIT_HLIST_NODE(&inode->i_hash);
-        INIT_LIST_HEAD(&inode->i_dentry);
         INIT_LIST_HEAD(&inode->i_devices);
         INIT_LIST_HEAD(&inode->i_wb_list);
         INIT_LIST_HEAD(&inode->i_lru);
@@ -1508,7 +1592,7 @@ void file_update_time(struct file *file)
         if (sync_it & S_MTIME)
                 inode->i_mtime = now;
         mark_inode_dirty_sync(inode);
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
 }
 EXPORT_SYMBOL(file_update_time);
 
@@ -1647,7 +1731,7 @@ EXPORT_SYMBOL(init_special_inode);
  * @mode: mode of the new inode
  */
 void inode_init_owner(struct inode *inode, const struct inode *dir,
-                        mode_t mode)
+                        umode_t mode)
 {
         inode->i_uid = current_fsuid();
         if (dir && dir->i_mode & S_ISGID) {
diff --git a/fs/internal.h b/fs/internal.h
index fe327c20af83..9962c59ba280 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -15,19 +15,14 @@ struct super_block;
 struct file_system_type;
 struct linux_binprm;
 struct path;
+struct mount;
 
 /*
  * block_dev.c
  */
 #ifdef CONFIG_BLOCK
-extern struct super_block *blockdev_superblock;
 extern void __init bdev_cache_init(void);
 
-static inline int sb_is_blkdev_sb(struct super_block *sb)
-{
-        return sb == blockdev_superblock;
-}
-
 extern int __sync_blockdev(struct block_device *bdev, int wait);
 
 #else
@@ -35,11 +30,6 @@ static inline void bdev_cache_init(void)
 {
 }
 
-static inline int sb_is_blkdev_sb(struct super_block *sb)
-{
-        return 0;
-}
-
 static inline int __sync_blockdev(struct block_device *bdev, int wait)
 {
         return 0;
@@ -52,28 +42,17 @@ static inline int __sync_blockdev(struct block_device *bdev, int wait)
 extern void __init chrdev_init(void);
 
 /*
- * exec.c
- */
-extern int check_unsafe_exec(struct linux_binprm *);
-
-/*
  * namespace.c
  */
 extern int copy_mount_options(const void __user *, unsigned long *);
 extern int copy_mount_string(const void __user *, char **);
 
-extern unsigned int mnt_get_count(struct vfsmount *mnt);
-extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
 extern struct vfsmount *lookup_mnt(struct path *);
-extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
-                                struct vfsmount *);
-extern void release_mounts(struct list_head *);
-extern void umount_tree(struct vfsmount *, int, struct list_head *);
-extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
 extern int finish_automount(struct vfsmount *, struct path *);
 
 extern void mnt_make_longterm(struct vfsmount *);
 extern void mnt_make_shortterm(struct vfsmount *);
+extern int sb_prepare_remount_readonly(struct super_block *);
 
 extern void __init mnt_init(void);
 
@@ -98,10 +77,9 @@ extern struct file *get_empty_filp(void);
  */
 extern int do_remount_sb(struct super_block *, int, void *, int);
 extern bool grab_super_passive(struct super_block *sb);
-extern void __put_super(struct super_block *sb);
-extern void put_super(struct super_block *sb);
 extern struct dentry *mount_fs(struct file_system_type *,
                                int, const char *, void *);
+extern struct super_block *user_get_super(dev_t);
 
 /*
  * open.c
@@ -111,7 +89,7 @@ extern struct file *nameidata_to_filp(struct nameidata *);
 extern void release_open_intent(struct nameidata *);
 struct open_flags {
         int open_flag;
-        int mode;
+        umode_t mode;
         int acc_mode;
         int intent;
 };
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index f950059525fc..7b99f5f460be 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -85,7 +85,6 @@ static struct inode *isofs_alloc_inode(struct super_block *sb)
 static void isofs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
 }
 
@@ -170,8 +169,8 @@ struct iso9660_options{
         unsigned char map;
         unsigned char check;
         unsigned int blocksize;
-        mode_t fmode;
-        mode_t dmode;
+        umode_t fmode;
+        umode_t dmode;
         gid_t gid;
         uid_t uid;
         char *iocharset;
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 7d33de84f52a..0e73f63d9274 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -50,14 +50,14 @@ struct isofs_sb_info {
         unsigned int  s_uid_set:1;
         unsigned int  s_gid_set:1;
 
-        mode_t s_fmode;
-        mode_t s_dmode;
+        umode_t s_fmode;
+        umode_t s_dmode;
         gid_t s_gid;
         uid_t s_uid;
         struct nls_table *s_nls_iocharset; /* Native language support table */
 };
 
-#define ISOFS_INVALID_MODE ((mode_t) -1)
+#define ISOFS_INVALID_MODE ((umode_t) -1)
 
 static inline struct isofs_sb_info *ISOFS_SB(struct super_block *sb)
 {
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index be6169bd8acd..973ac5822bd7 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -22,16 +22,16 @@
 
 static int jffs2_readdir (struct file *, void *, filldir_t);
 
-static int jffs2_create (struct inode *,struct dentry *,int,
+static int jffs2_create (struct inode *,struct dentry *,umode_t,
                          struct nameidata *);
 static struct dentry *jffs2_lookup (struct inode *,struct dentry *,
                                     struct nameidata *);
 static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
 static int jffs2_unlink (struct inode *,struct dentry *);
 static int jffs2_symlink (struct inode *,struct dentry *,const char *);
-static int jffs2_mkdir (struct inode *,struct dentry *,int);
+static int jffs2_mkdir (struct inode *,struct dentry *,umode_t);
 static int jffs2_rmdir (struct inode *,struct dentry *);
-static int jffs2_mknod (struct inode *,struct dentry *,int,dev_t);
+static int jffs2_mknod (struct inode *,struct dentry *,umode_t,dev_t);
 static int jffs2_rename (struct inode *, struct dentry *,
                          struct inode *, struct dentry *);
 
@@ -169,8 +169,8 @@ static int jffs2_readdir(struct file *filp, void *dirent, filldir_t filldir)
 /***********************************************************************/
 
 
-static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode,
-                        struct nameidata *nd)
+static int jffs2_create(struct inode *dir_i, struct dentry *dentry,
+                        umode_t mode, struct nameidata *nd)
 {
         struct jffs2_raw_inode *ri;
         struct jffs2_inode_info *f, *dir_f;
@@ -450,7 +450,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
 }
 
 
-static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
+static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, umode_t mode)
 {
         struct jffs2_inode_info *f, *dir_f;
         struct jffs2_sb_info *c;
@@ -618,7 +618,7 @@ static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
         return ret;
 }
 
-static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, dev_t rdev)
+static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
         struct jffs2_inode_info *f, *dir_f;
         struct jffs2_sb_info *c;
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index e7e974454115..8be4925296cf 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -45,7 +45,6 @@ static struct inode *jffs2_alloc_inode(struct super_block *sb)
 static void jffs2_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(jffs2_inode_cachep, JFFS2_INODE_INFO(inode));
 }
 
@@ -97,9 +96,9 @@ static const char *jffs2_compr_name(unsigned int compr)
         }
 }
 
-static int jffs2_show_options(struct seq_file *s, struct vfsmount *mnt)
+static int jffs2_show_options(struct seq_file *s, struct dentry *root)
 {
-        struct jffs2_sb_info *c = JFFS2_SB_INFO(mnt->mnt_sb);
+        struct jffs2_sb_info *c = JFFS2_SB_INFO(root->d_sb);
         struct jffs2_mount_opts *opts = &c->mount_opts;
 
         if (opts->override_compr)
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index 6f98a1866776..f19d1e04a374 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -68,7 +68,7 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 unsigned int oldflags;
                 int err;
 
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         return err;
 
@@ -120,7 +120,7 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 inode->i_ctime = CURRENT_TIME_SEC;
                 mark_inode_dirty(inode);
 setflags_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return err;
         }
         default:
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index a112ad96e474..5f7c160ea64f 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -72,7 +72,7 @@ static inline void free_ea_wmap(struct inode *inode)
  * RETURN:      Errors from subroutines
  *
  */
-static int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
+static int jfs_create(struct inode *dip, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         int rc = 0;
@@ -205,7 +205,7 @@ static int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
  * note:
  * EACCESS: user needs search+write permission on the parent directory
  */
-static int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
+static int jfs_mkdir(struct inode *dip, struct dentry *dentry, umode_t mode)
 {
         int rc = 0;
         tid_t tid;              /* transaction id */
@@ -1353,7 +1353,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
  * FUNCTION:    Create a special file (device)
  */
 static int jfs_mknod(struct inode *dir, struct dentry *dentry,
-                int mode, dev_t rdev)
+                umode_t mode, dev_t rdev)
 {
         struct jfs_inode_info *jfs_ip;
         struct btstack btstack;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index a44eff076c17..682bca642f38 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -119,7 +119,6 @@ static void jfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
         struct jfs_inode_info *ji = JFS_IP(inode);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(jfs_inode_cachep, ji);
 }
 
@@ -609,9 +608,9 @@ static int jfs_sync_fs(struct super_block *sb, int wait)
         return 0;
 }
 
-static int jfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int jfs_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct jfs_sb_info *sbi = JFS_SBI(vfs->mnt_sb);
+        struct jfs_sb_info *sbi = JFS_SBI(root->d_sb);
 
         if (sbi->uid != -1)
                 seq_printf(seq, ",uid=%d", sbi->uid);
diff --git a/fs/libfs.c b/fs/libfs.c
index f6d411eef1e7..5b2dbb3ba4fc 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -12,7 +12,7 @@
 #include <linux/mutex.h>
 #include <linux/exportfs.h>
 #include <linux/writeback.h>
-#include <linux/buffer_head.h>
+#include <linux/buffer_head.h> /* sync_mapping_buffers */
 
 #include <asm/uaccess.h>
 
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 1ca0679c80bf..2240d384d787 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -403,7 +403,7 @@ nlmsvc_match_sb(void *datap, struct nlm_file *file)
 {
         struct super_block *sb = datap;
 
-        return sb == file->f_file->f_path.mnt->mnt_sb;
+        return sb == file->f_file->f_path.dentry->d_sb;
 }
 
 /**
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index b7d7f67cee5a..501043e8966c 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -482,7 +482,7 @@ out:
         return ret;
 }
 
-static int logfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int logfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode *inode;
 
@@ -501,7 +501,7 @@ static int logfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         return __logfs_create(dir, dentry, inode, NULL, 0);
 }
 
-static int logfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int logfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         struct inode *inode;
@@ -517,7 +517,7 @@ static int logfs_create(struct inode *dir, struct dentry *dentry, int mode,
         return __logfs_create(dir, dentry, inode, NULL, 0);
 }
 
-static int logfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+static int logfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
                 dev_t rdev)
 {
         struct inode *inode;
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index 7e441ad5f792..388df1aa35e5 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -144,7 +144,6 @@ struct inode *logfs_safe_iget(struct super_block *sb, ino_t ino, int *is_cached)
 static void logfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(logfs_inode_cache, logfs_inode(inode));
 }
 
@@ -324,7 +323,7 @@ static void logfs_set_ino_generation(struct super_block *sb,
         mutex_unlock(&super->s_journal_mutex);
 }
 
-struct inode *logfs_new_inode(struct inode *dir, int mode)
+struct inode *logfs_new_inode(struct inode *dir, umode_t mode)
 {
         struct super_block *sb = dir->i_sb;
         struct inode *inode;
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index 398ecff6e548..926373866a55 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -520,7 +520,7 @@ extern const struct super_operations logfs_super_operations;
 struct inode *logfs_iget(struct super_block *sb, ino_t ino);
 struct inode *logfs_safe_iget(struct super_block *sb, ino_t ino, int *cookie);
 void logfs_safe_iput(struct inode *inode, int cookie);
-struct inode *logfs_new_inode(struct inode *dir, int mode);
+struct inode *logfs_new_inode(struct inode *dir, umode_t mode);
 struct inode *logfs_new_meta_inode(struct super_block *sb, u64 ino);
 struct inode *logfs_read_meta_inode(struct super_block *sb, u64 ino);
 int logfs_init_inode_cache(void);
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c
index ef175cb8cfd8..4bc50dac8e97 100644
--- a/fs/minix/bitmap.c
+++ b/fs/minix/bitmap.c
@@ -209,7 +209,7 @@ void minix_free_inode(struct inode * inode)
         mark_buffer_dirty(bh);
 }
 
-struct inode *minix_new_inode(const struct inode *dir, int mode, int *error)
+struct inode *minix_new_inode(const struct inode *dir, umode_t mode, int *error)
 {
         struct super_block *sb = dir->i_sb;
         struct minix_sb_info *sbi = minix_sb(sb);
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index 4d46a6a59070..fa8b612b8ce2 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -71,7 +71,6 @@ static struct inode *minix_alloc_inode(struct super_block *sb)
 static void minix_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(minix_inode_cachep, minix_i(inode));
 }
 
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index 26bbd55e82ea..c889ef0aa571 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -46,7 +46,7 @@ struct minix_sb_info {
 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 *, int, int *);
+extern struct inode * minix_new_inode(const struct inode *, umode_t, int *);
 extern void minix_free_inode(struct inode * inode);
 extern unsigned long minix_count_free_inodes(struct super_block *sb);
 extern int minix_new_block(struct inode * inode);
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index 6e6777f1b4b2..2f76e38c2065 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -36,7 +36,7 @@ static struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry, st
         return NULL;
 }
 
-static int minix_mknod(struct inode * dir, struct dentry *dentry, int mode, dev_t rdev)
+static int minix_mknod(struct inode * dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
         int error;
         struct inode *inode;
@@ -54,7 +54,7 @@ static int minix_mknod(struct inode * dir, struct dentry *dentry, int mode, dev_
         return error;
 }
 
-static int minix_create(struct inode * dir, struct dentry *dentry, int mode,
+static int minix_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         return minix_mknod(dir, dentry, mode, 0);
@@ -103,7 +103,7 @@ static int minix_link(struct dentry * old_dentry, struct inode * dir,
         return add_nondir(dentry, inode);
 }
 
-static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
+static int minix_mkdir(struct inode * dir, struct dentry *dentry, umode_t mode)
 {
         struct inode * inode;
         int err = -EMLINK;
diff --git a/fs/mount.h b/fs/mount.h
new file mode 100644
index 000000000000..4ef36d93e5a2
--- /dev/null
+++ b/fs/mount.h
@@ -0,0 +1,76 @@
+#include <linux/mount.h>
+#include <linux/seq_file.h>
+#include <linux/poll.h>
+
+struct mnt_namespace {
+        atomic_t                count;
+        struct mount *  root;
+        struct list_head        list;
+        wait_queue_head_t poll;
+        int event;
+};
+
+struct mnt_pcp {
+        int mnt_count;
+        int mnt_writers;
+};
+
+struct mount {
+        struct list_head mnt_hash;
+        struct mount *mnt_parent;
+        struct dentry *mnt_mountpoint;
+        struct vfsmount mnt;
+#ifdef CONFIG_SMP
+        struct mnt_pcp __percpu *mnt_pcp;
+        atomic_t mnt_longterm;          /* how many of the refs are longterm */
+#else
+        int mnt_count;
+        int mnt_writers;
+#endif
+        struct list_head mnt_mounts;    /* list of children, anchored here */
+        struct list_head mnt_child;     /* and going through their mnt_child */
+        struct list_head mnt_instance;  /* mount instance on sb->s_mounts */
+        const char *mnt_devname;        /* Name of device e.g. /dev/dsk/hda1 */
+        struct list_head mnt_list;
+        struct list_head mnt_expire;    /* link in fs-specific expiry list */
+        struct list_head mnt_share;     /* circular list of shared mounts */
+        struct list_head mnt_slave_list;/* list of slave mounts */
+        struct list_head mnt_slave;     /* slave list entry */
+        struct mount *mnt_master;       /* slave is on master->mnt_slave_list */
+        struct mnt_namespace *mnt_ns;   /* containing namespace */
+#ifdef CONFIG_FSNOTIFY
+        struct hlist_head mnt_fsnotify_marks;
+        __u32 mnt_fsnotify_mask;
+#endif
+        int mnt_id;                     /* mount identifier */
+        int mnt_group_id;               /* peer group identifier */
+        int mnt_expiry_mark;            /* true if marked for expiry */
+        int mnt_pinned;
+        int mnt_ghosts;
+};
+
+static inline struct mount *real_mount(struct vfsmount *mnt)
+{
+        return container_of(mnt, struct mount, mnt);
+}
+
+static inline int mnt_has_parent(struct mount *mnt)
+{
+        return mnt != mnt->mnt_parent;
+}
+
+extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
+
+static inline void get_mnt_ns(struct mnt_namespace *ns)
+{
+        atomic_inc(&ns->count);
+}
+
+struct proc_mounts {
+        struct seq_file m; /* must be the first element */
+        struct mnt_namespace *ns;
+        struct path root;
+        int (*show)(struct seq_file *, struct vfsmount *);
+};
+
+extern const struct seq_operations mounts_op;
diff --git a/fs/namei.c b/fs/namei.c
index 5008f01787f5..c283a1ec008e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -36,6 +36,7 @@
 #include <asm/uaccess.h>
 
 #include "internal.h"
+#include "mount.h"
 
 /* [Feb-1997 T. Schoebel-Theuer]
  * Fundamental changes in the pathname lookup mechanisms (namei)
@@ -676,36 +677,38 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
 
 static int follow_up_rcu(struct path *path)
 {
-        struct vfsmount *parent;
+        struct mount *mnt = real_mount(path->mnt);
+        struct mount *parent;
         struct dentry *mountpoint;
 
-        parent = path->mnt->mnt_parent;
-        if (parent == path->mnt)
+        parent = mnt->mnt_parent;
+        if (&parent->mnt == path->mnt)
                 return 0;
-        mountpoint = path->mnt->mnt_mountpoint;
+        mountpoint = mnt->mnt_mountpoint;
         path->dentry = mountpoint;
-        path->mnt = parent;
+        path->mnt = &parent->mnt;
         return 1;
 }
 
 int follow_up(struct path *path)
 {
-        struct vfsmount *parent;
+        struct mount *mnt = real_mount(path->mnt);
+        struct mount *parent;
         struct dentry *mountpoint;
 
         br_read_lock(vfsmount_lock);
-        parent = path->mnt->mnt_parent;
-        if (parent == path->mnt) {
+        parent = mnt->mnt_parent;
+        if (&parent->mnt == path->mnt) {
                 br_read_unlock(vfsmount_lock);
                 return 0;
         }
-        mntget(parent);
-        mountpoint = dget(path->mnt->mnt_mountpoint);
+        mntget(&parent->mnt);
+        mountpoint = dget(mnt->mnt_mountpoint);
         br_read_unlock(vfsmount_lock);
         dput(path->dentry);
         path->dentry = mountpoint;
         mntput(path->mnt);
-        path->mnt = parent;
+        path->mnt = &parent->mnt;
         return 1;
 }
 
@@ -884,7 +887,7 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
                                struct inode **inode)
 {
         for (;;) {
-                struct vfsmount *mounted;
+                struct mount *mounted;
                 /*
                  * Don't forget we might have a non-mountpoint managed dentry
                  * that wants to block transit.
@@ -898,8 +901,8 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
                 mounted = __lookup_mnt(path->mnt, path->dentry, 1);
                 if (!mounted)
                         break;
-                path->mnt = mounted;
-                path->dentry = mounted->mnt_root;
+                path->mnt = &mounted->mnt;
+                path->dentry = mounted->mnt.mnt_root;
                 nd->flags |= LOOKUP_JUMPED;
                 nd->seq = read_seqcount_begin(&path->dentry->d_seq);
                 /*
@@ -915,12 +918,12 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
 static void follow_mount_rcu(struct nameidata *nd)
 {
         while (d_mountpoint(nd->path.dentry)) {
-                struct vfsmount *mounted;
+                struct mount *mounted;
                 mounted = __lookup_mnt(nd->path.mnt, nd->path.dentry, 1);
                 if (!mounted)
                         break;
-                nd->path.mnt = mounted;
-                nd->path.dentry = mounted->mnt_root;
+                nd->path.mnt = &mounted->mnt;
+                nd->path.dentry = mounted->mnt.mnt_root;
                 nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
         }
 }
@@ -1976,7 +1979,7 @@ void unlock_rename(struct dentry *p1, struct dentry *p2)
         }
 }
 
-int vfs_create(struct inode *dir, struct dentry *dentry, int mode,
+int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         int error = may_create(dir, dentry);
@@ -2177,7 +2180,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
 
         /* Negative dentry, just create the file */
         if (!dentry->d_inode) {
-                int mode = op->mode;
+                umode_t mode = op->mode;
                 if (!IS_POSIXACL(dir->d_inode))
                         mode &= ~current_umask();
                 /*
@@ -2444,7 +2447,7 @@ struct dentry *user_path_create(int dfd, const char __user *pathname, struct pat
 }
 EXPORT_SYMBOL(user_path_create);
 
-int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         int error = may_create(dir, dentry);
 
@@ -2472,7 +2475,7 @@ int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
         return error;
 }
 
-static int may_mknod(mode_t mode)
+static int may_mknod(umode_t mode)
 {
         switch (mode & S_IFMT) {
         case S_IFREG:
@@ -2489,7 +2492,7 @@ static int may_mknod(mode_t mode)
         }
 }
 
-SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, int, mode,
+SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode,
                 unsigned, dev)
 {
         struct dentry *dentry;
@@ -2536,12 +2539,12 @@ out_dput:
         return error;
 }
 
-SYSCALL_DEFINE3(mknod, const char __user *, filename, int, mode, unsigned, dev)
+SYSCALL_DEFINE3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev)
 {
         return sys_mknodat(AT_FDCWD, filename, mode, dev);
 }
 
-int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int error = may_create(dir, dentry);
 
@@ -2562,7 +2565,7 @@ int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         return error;
 }
 
-SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, int, mode)
+SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)
 {
         struct dentry *dentry;
         struct path path;
@@ -2590,7 +2593,7 @@ out_dput:
         return error;
 }
 
-SYSCALL_DEFINE2(mkdir, const char __user *, pathname, int, mode)
+SYSCALL_DEFINE2(mkdir, const char __user *, pathname, umode_t, mode)
 {
         return sys_mkdirat(AT_FDCWD, pathname, mode);
 }
diff --git a/fs/namespace.c b/fs/namespace.c
index cfc6d4448aa5..7e6f2c9dc7c4 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -9,30 +9,17 @@
  */
 
 #include <linux/syscalls.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/percpu.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/acct.h>
+#include <linux/export.h>
 #include <linux/capability.h>
-#include <linux/cpumask.h>
-#include <linux/module.h>
-#include <linux/sysfs.h>
-#include <linux/seq_file.h>
 #include <linux/mnt_namespace.h>
 #include <linux/namei.h>
-#include <linux/nsproxy.h>
 #include <linux/security.h>
-#include <linux/mount.h>
-#include <linux/ramfs.h>
-#include <linux/log2.h>
 #include <linux/idr.h>
-#include <linux/fs_struct.h>
-#include <linux/fsnotify.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
+#include <linux/acct.h>         /* acct_auto_close_mnt */
+#include <linux/ramfs.h>        /* init_rootfs */
+#include <linux/fs_struct.h>    /* get_fs_root et.al. */
+#include <linux/fsnotify.h>     /* fsnotify_vfsmount_delete */
+#include <linux/uaccess.h>
 #include "pnode.h"
 #include "internal.h"
 
@@ -78,7 +65,7 @@ static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
  * allocation is serialized by namespace_sem, but we need the spinlock to
  * serialize with freeing.
  */
-static int mnt_alloc_id(struct vfsmount *mnt)
+static int mnt_alloc_id(struct mount *mnt)
 {
         int res;
 
@@ -95,7 +82,7 @@ retry:
         return res;
 }
 
-static void mnt_free_id(struct vfsmount *mnt)
+static void mnt_free_id(struct mount *mnt)
 {
         int id = mnt->mnt_id;
         spin_lock(&mnt_id_lock);
@@ -110,7 +97,7 @@ static void mnt_free_id(struct vfsmount *mnt)
  *
  * mnt_group_ida is protected by namespace_sem
  */
-static int mnt_alloc_group_id(struct vfsmount *mnt)
+static int mnt_alloc_group_id(struct mount *mnt)
 {
         int res;
 
@@ -129,7 +116,7 @@ static int mnt_alloc_group_id(struct vfsmount *mnt)
 /*
  * Release a peer group ID
  */
-void mnt_release_group_id(struct vfsmount *mnt)
+void mnt_release_group_id(struct mount *mnt)
 {
         int id = mnt->mnt_group_id;
         ida_remove(&mnt_group_ida, id);
@@ -141,7 +128,7 @@ void mnt_release_group_id(struct vfsmount *mnt)
 /*
  * vfsmount lock must be held for read
  */
-static inline void mnt_add_count(struct vfsmount *mnt, int n)
+static inline void mnt_add_count(struct mount *mnt, int n)
 {
 #ifdef CONFIG_SMP
         this_cpu_add(mnt->mnt_pcp->mnt_count, n);
@@ -152,35 +139,10 @@ static inline void mnt_add_count(struct vfsmount *mnt, int n)
 #endif
 }
 
-static inline void mnt_set_count(struct vfsmount *mnt, int n)
-{
-#ifdef CONFIG_SMP
-        this_cpu_write(mnt->mnt_pcp->mnt_count, n);
-#else
-        mnt->mnt_count = n;
-#endif
-}
-
-/*
- * vfsmount lock must be held for read
- */
-static inline void mnt_inc_count(struct vfsmount *mnt)
-{
-        mnt_add_count(mnt, 1);
-}
-
-/*
- * vfsmount lock must be held for read
- */
-static inline void mnt_dec_count(struct vfsmount *mnt)
-{
-        mnt_add_count(mnt, -1);
-}
-
 /*
  * vfsmount lock must be held for write
  */
-unsigned int mnt_get_count(struct vfsmount *mnt)
+unsigned int mnt_get_count(struct mount *mnt)
 {
 #ifdef CONFIG_SMP
         unsigned int count = 0;
@@ -196,9 +158,9 @@ unsigned int mnt_get_count(struct vfsmount *mnt)
 #endif
 }
 
-static struct vfsmount *alloc_vfsmnt(const char *name)
+static struct mount *alloc_vfsmnt(const char *name)
 {
-        struct vfsmount *mnt = kmem_cache_zalloc(mnt_cache, GFP_KERNEL);
+        struct mount *mnt = kmem_cache_zalloc(mnt_cache, GFP_KERNEL);
         if (mnt) {
                 int err;
 
@@ -277,7 +239,7 @@ int __mnt_is_readonly(struct vfsmount *mnt)
 }
 EXPORT_SYMBOL_GPL(__mnt_is_readonly);
 
-static inline void mnt_inc_writers(struct vfsmount *mnt)
+static inline void mnt_inc_writers(struct mount *mnt)
 {
 #ifdef CONFIG_SMP
         this_cpu_inc(mnt->mnt_pcp->mnt_writers);
@@ -286,7 +248,7 @@ static inline void mnt_inc_writers(struct vfsmount *mnt)
 #endif
 }
 
-static inline void mnt_dec_writers(struct vfsmount *mnt)
+static inline void mnt_dec_writers(struct mount *mnt)
 {
 #ifdef CONFIG_SMP
         this_cpu_dec(mnt->mnt_pcp->mnt_writers);
@@ -295,7 +257,7 @@ static inline void mnt_dec_writers(struct vfsmount *mnt)
 #endif
 }
 
-static unsigned int mnt_get_writers(struct vfsmount *mnt)
+static unsigned int mnt_get_writers(struct mount *mnt)
 {
 #ifdef CONFIG_SMP
         unsigned int count = 0;
@@ -311,6 +273,15 @@ static unsigned int mnt_get_writers(struct vfsmount *mnt)
 #endif
 }
 
+static int mnt_is_readonly(struct vfsmount *mnt)
+{
+        if (mnt->mnt_sb->s_readonly_remount)
+                return 1;
+        /* Order wrt setting s_flags/s_readonly_remount in do_remount() */
+        smp_rmb();
+        return __mnt_is_readonly(mnt);
+}
+
 /*
  * Most r/o checks on a fs are for operations that take
  * discrete amounts of time, like a write() or unlink().
@@ -321,7 +292,7 @@ static unsigned int mnt_get_writers(struct vfsmount *mnt)
  */
 /**
  * mnt_want_write - get write access to a mount
- * @mnt: the mount on which to take a write
+ * @m: the mount on which to take a write
  *
  * This tells the low-level filesystem that a write is
  * about to be performed to it, and makes sure that
@@ -329,8 +300,9 @@ static unsigned int mnt_get_writers(struct vfsmount *mnt)
  * the write operation is finished, mnt_drop_write()
  * must be called.  This is effectively a refcount.
  */
-int mnt_want_write(struct vfsmount *mnt)
+int mnt_want_write(struct vfsmount *m)
 {
+        struct mount *mnt = real_mount(m);
         int ret = 0;
 
         preempt_disable();
@@ -341,7 +313,7 @@ int mnt_want_write(struct vfsmount *mnt)
          * incremented count after it has set MNT_WRITE_HOLD.
          */
         smp_mb();
-        while (mnt->mnt_flags & MNT_WRITE_HOLD)
+        while (mnt->mnt.mnt_flags & MNT_WRITE_HOLD)
                 cpu_relax();
         /*
          * After the slowpath clears MNT_WRITE_HOLD, mnt_is_readonly will
@@ -349,7 +321,7 @@ int mnt_want_write(struct vfsmount *mnt)
          * MNT_WRITE_HOLD is cleared.
          */
         smp_rmb();
-        if (__mnt_is_readonly(mnt)) {
+        if (mnt_is_readonly(m)) {
                 mnt_dec_writers(mnt);
                 ret = -EROFS;
                 goto out;
@@ -378,7 +350,7 @@ int mnt_clone_write(struct vfsmount *mnt)
         if (__mnt_is_readonly(mnt))
                 return -EROFS;
         preempt_disable();
-        mnt_inc_writers(mnt);
+        mnt_inc_writers(real_mount(mnt));
         preempt_enable();
         return 0;
 }
@@ -412,17 +384,23 @@ EXPORT_SYMBOL_GPL(mnt_want_write_file);
 void mnt_drop_write(struct vfsmount *mnt)
 {
         preempt_disable();
-        mnt_dec_writers(mnt);
+        mnt_dec_writers(real_mount(mnt));
         preempt_enable();
 }
 EXPORT_SYMBOL_GPL(mnt_drop_write);
 
-static int mnt_make_readonly(struct vfsmount *mnt)
+void mnt_drop_write_file(struct file *file)
+{
+        mnt_drop_write(file->f_path.mnt);
+}
+EXPORT_SYMBOL(mnt_drop_write_file);
+
+static int mnt_make_readonly(struct mount *mnt)
 {
         int ret = 0;
 
         br_write_lock(vfsmount_lock);
-        mnt->mnt_flags |= MNT_WRITE_HOLD;
+        mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;
         /*
          * After storing MNT_WRITE_HOLD, we'll read the counters. This store
          * should be visible before we do.
@@ -448,25 +426,61 @@ static int mnt_make_readonly(struct vfsmount *mnt)
         if (mnt_get_writers(mnt) > 0)
                 ret = -EBUSY;
         else
-                mnt->mnt_flags |= MNT_READONLY;
+                mnt->mnt.mnt_flags |= MNT_READONLY;
         /*
          * MNT_READONLY must become visible before ~MNT_WRITE_HOLD, so writers
          * that become unheld will see MNT_READONLY.
          */
         smp_wmb();
-        mnt->mnt_flags &= ~MNT_WRITE_HOLD;
+        mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;
         br_write_unlock(vfsmount_lock);
         return ret;
 }
 
-static void __mnt_unmake_readonly(struct vfsmount *mnt)
+static void __mnt_unmake_readonly(struct mount *mnt)
 {
         br_write_lock(vfsmount_lock);
-        mnt->mnt_flags &= ~MNT_READONLY;
+        mnt->mnt.mnt_flags &= ~MNT_READONLY;
         br_write_unlock(vfsmount_lock);
 }
 
-static void free_vfsmnt(struct vfsmount *mnt)
+int sb_prepare_remount_readonly(struct super_block *sb)
+{
+        struct mount *mnt;
+        int err = 0;
+
+        /* Racy optimization.  Recheck the counter under MNT_WRITE_HOLD */
+        if (atomic_long_read(&sb->s_remove_count))
+                return -EBUSY;
+
+        br_write_lock(vfsmount_lock);
+        list_for_each_entry(mnt, &sb->s_mounts, mnt_instance) {
+                if (!(mnt->mnt.mnt_flags & MNT_READONLY)) {
+                        mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;
+                        smp_mb();
+                        if (mnt_get_writers(mnt) > 0) {
+                                err = -EBUSY;
+                                break;
+                        }
+                }
+        }
+        if (!err && atomic_long_read(&sb->s_remove_count))
+                err = -EBUSY;
+
+        if (!err) {
+                sb->s_readonly_remount = 1;
+                smp_wmb();
+        }
+        list_for_each_entry(mnt, &sb->s_mounts, mnt_instance) {
+                if (mnt->mnt.mnt_flags & MNT_WRITE_HOLD)
+                        mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;
+        }
+        br_write_unlock(vfsmount_lock);
+
+        return err;
+}
+
+static void free_vfsmnt(struct mount *mnt)
 {
         kfree(mnt->mnt_devname);
         mnt_free_id(mnt);
@@ -481,20 +495,20 @@ static void free_vfsmnt(struct vfsmount *mnt)
  * @dir. If @dir is set return the first mount else return the last mount.
  * vfsmount_lock must be held for read or write.
  */
-struct vfsmount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry,
+struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry,
                               int dir)
 {
         struct list_head *head = mount_hashtable + hash(mnt, dentry);
         struct list_head *tmp = head;
-        struct vfsmount *p, *found = NULL;
+        struct mount *p, *found = NULL;
 
         for (;;) {
                 tmp = dir ? tmp->next : tmp->prev;
                 p = NULL;
                 if (tmp == head)
                         break;
-                p = list_entry(tmp, struct vfsmount, mnt_hash);
-                if (p->mnt_parent == mnt && p->mnt_mountpoint == dentry) {
+                p = list_entry(tmp, struct mount, mnt_hash);
+                if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry) {
                         found = p;
                         break;
                 }
@@ -508,16 +522,21 @@ struct vfsmount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry,
  */
 struct vfsmount *lookup_mnt(struct path *path)
 {
-        struct vfsmount *child_mnt;
+        struct mount *child_mnt;
 
         br_read_lock(vfsmount_lock);
-        if ((child_mnt = __lookup_mnt(path->mnt, path->dentry, 1)))
-                mntget(child_mnt);
-        br_read_unlock(vfsmount_lock);
-        return child_mnt;
+        child_mnt = __lookup_mnt(path->mnt, path->dentry, 1);
+        if (child_mnt) {
+                mnt_add_count(child_mnt, 1);
+                br_read_unlock(vfsmount_lock);
+                return &child_mnt->mnt;
+        } else {
+                br_read_unlock(vfsmount_lock);
+                return NULL;
+        }
 }
 
-static inline int check_mnt(struct vfsmount *mnt)
+static inline int check_mnt(struct mount *mnt)
 {
         return mnt->mnt_ns == current->nsproxy->mnt_ns;
 }
@@ -548,12 +567,12 @@ static void __touch_mnt_namespace(struct mnt_namespace *ns)
  * Clear dentry's mounted state if it has no remaining mounts.
  * vfsmount_lock must be held for write.
  */
-static void dentry_reset_mounted(struct vfsmount *mnt, struct dentry *dentry)
+static void dentry_reset_mounted(struct dentry *dentry)
 {
         unsigned u;
 
         for (u = 0; u < HASH_SIZE; u++) {
-                struct vfsmount *p;
+                struct mount *p;
 
                 list_for_each_entry(p, &mount_hashtable[u], mnt_hash) {
                         if (p->mnt_mountpoint == dentry)
@@ -568,25 +587,26 @@ static void dentry_reset_mounted(struct vfsmount *mnt, struct dentry *dentry)
 /*
  * vfsmount lock must be held for write
  */
-static void detach_mnt(struct vfsmount *mnt, struct path *old_path)
+static void detach_mnt(struct mount *mnt, struct path *old_path)
 {
         old_path->dentry = mnt->mnt_mountpoint;
-        old_path->mnt = mnt->mnt_parent;
+        old_path->mnt = &mnt->mnt_parent->mnt;
         mnt->mnt_parent = mnt;
-        mnt->mnt_mountpoint = mnt->mnt_root;
+        mnt->mnt_mountpoint = mnt->mnt.mnt_root;
         list_del_init(&mnt->mnt_child);
         list_del_init(&mnt->mnt_hash);
-        dentry_reset_mounted(old_path->mnt, old_path->dentry);
+        dentry_reset_mounted(old_path->dentry);
 }
 
 /*
  * vfsmount lock must be held for write
  */
-void mnt_set_mountpoint(struct vfsmount *mnt, struct dentry *dentry,
-                        struct vfsmount *child_mnt)
+void mnt_set_mountpoint(struct mount *mnt, struct dentry *dentry,
+                        struct mount *child_mnt)
 {
-        child_mnt->mnt_parent = mntget(mnt);
+        mnt_add_count(mnt, 1);  /* essentially, that's mntget */
         child_mnt->mnt_mountpoint = dget(dentry);
+        child_mnt->mnt_parent = mnt;
         spin_lock(&dentry->d_lock);
         dentry->d_flags |= DCACHE_MOUNTED;
         spin_unlock(&dentry->d_lock);
@@ -595,15 +615,15 @@ void mnt_set_mountpoint(struct vfsmount *mnt, struct dentry *dentry,
 /*
  * vfsmount lock must be held for write
  */
-static void attach_mnt(struct vfsmount *mnt, struct path *path)
+static void attach_mnt(struct mount *mnt, struct path *path)
 {
-        mnt_set_mountpoint(path->mnt, path->dentry, mnt);
+        mnt_set_mountpoint(real_mount(path->mnt), path->dentry, mnt);
         list_add_tail(&mnt->mnt_hash, mount_hashtable +
                         hash(path->mnt, path->dentry));
-        list_add_tail(&mnt->mnt_child, &path->mnt->mnt_mounts);
+        list_add_tail(&mnt->mnt_child, &real_mount(path->mnt)->mnt_mounts);
 }
 
-static inline void __mnt_make_longterm(struct vfsmount *mnt)
+static inline void __mnt_make_longterm(struct mount *mnt)
 {
 #ifdef CONFIG_SMP
         atomic_inc(&mnt->mnt_longterm);
@@ -611,7 +631,7 @@ static inline void __mnt_make_longterm(struct vfsmount *mnt)
 }
 
 /* needs vfsmount lock for write */
-static inline void __mnt_make_shortterm(struct vfsmount *mnt)
+static inline void __mnt_make_shortterm(struct mount *mnt)
 {
 #ifdef CONFIG_SMP
         atomic_dec(&mnt->mnt_longterm);
@@ -621,10 +641,10 @@ static inline void __mnt_make_shortterm(struct vfsmount *mnt)
 /*
  * vfsmount lock must be held for write
  */
-static void commit_tree(struct vfsmount *mnt)
+static void commit_tree(struct mount *mnt)
 {
-        struct vfsmount *parent = mnt->mnt_parent;
-        struct vfsmount *m;
+        struct mount *parent = mnt->mnt_parent;
+        struct mount *m;
         LIST_HEAD(head);
         struct mnt_namespace *n = parent->mnt_ns;
 
@@ -639,12 +659,12 @@ static void commit_tree(struct vfsmount *mnt)
         list_splice(&head, n->list.prev);
 
         list_add_tail(&mnt->mnt_hash, mount_hashtable +
-                                hash(parent, mnt->mnt_mountpoint));
+                                hash(&parent->mnt, mnt->mnt_mountpoint));
         list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
         touch_mnt_namespace(n);
 }
 
-static struct vfsmount *next_mnt(struct vfsmount *p, struct vfsmount *root)
+static struct mount *next_mnt(struct mount *p, struct mount *root)
 {
         struct list_head *next = p->mnt_mounts.next;
         if (next == &p->mnt_mounts) {
@@ -657,14 +677,14 @@ static struct vfsmount *next_mnt(struct vfsmount *p, struct vfsmount *root)
                         p = p->mnt_parent;
                 }
         }
-        return list_entry(next, struct vfsmount, mnt_child);
+        return list_entry(next, struct mount, mnt_child);
 }
 
-static struct vfsmount *skip_mnt_tree(struct vfsmount *p)
+static struct mount *skip_mnt_tree(struct mount *p)
 {
         struct list_head *prev = p->mnt_mounts.prev;
         while (prev != &p->mnt_mounts) {
-                p = list_entry(prev, struct vfsmount, mnt_child);
+                p = list_entry(prev, struct mount, mnt_child);
                 prev = p->mnt_mounts.prev;
         }
         return p;
@@ -673,7 +693,7 @@ static struct vfsmount *skip_mnt_tree(struct vfsmount *p)
 struct vfsmount *
 vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void *data)
 {
-        struct vfsmount *mnt;
+        struct mount *mnt;
         struct dentry *root;
 
         if (!type)
@@ -684,7 +704,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
                 return ERR_PTR(-ENOMEM);
 
         if (flags & MS_KERNMOUNT)
-                mnt->mnt_flags = MNT_INTERNAL;
+                mnt->mnt.mnt_flags = MNT_INTERNAL;
 
         root = mount_fs(type, flags, name, data);
         if (IS_ERR(root)) {
@@ -692,19 +712,22 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
                 return ERR_CAST(root);
         }
 
-        mnt->mnt_root = root;
-        mnt->mnt_sb = root->d_sb;
-        mnt->mnt_mountpoint = mnt->mnt_root;
+        mnt->mnt.mnt_root = root;
+        mnt->mnt.mnt_sb = root->d_sb;
+        mnt->mnt_mountpoint = mnt->mnt.mnt_root;
         mnt->mnt_parent = mnt;
-        return mnt;
+        br_write_lock(vfsmount_lock);
+        list_add_tail(&mnt->mnt_instance, &root->d_sb->s_mounts);
+        br_write_unlock(vfsmount_lock);
+        return &mnt->mnt;
 }
 EXPORT_SYMBOL_GPL(vfs_kern_mount);
 
-static struct vfsmount *clone_mnt(struct vfsmount *old, struct dentry *root,
+static struct mount *clone_mnt(struct mount *old, struct dentry *root,
                                         int flag)
 {
-        struct super_block *sb = old->mnt_sb;
-        struct vfsmount *mnt = alloc_vfsmnt(old->mnt_devname);
+        struct super_block *sb = old->mnt.mnt_sb;
+        struct mount *mnt = alloc_vfsmnt(old->mnt_devname);
 
         if (mnt) {
                 if (flag & (CL_SLAVE | CL_PRIVATE))
@@ -718,12 +741,15 @@ static struct vfsmount *clone_mnt(struct vfsmount *old, struct dentry *root,
                                 goto out_free;
                 }
 
-                mnt->mnt_flags = old->mnt_flags & ~MNT_WRITE_HOLD;
+                mnt->mnt.mnt_flags = old->mnt.mnt_flags & ~MNT_WRITE_HOLD;
                 atomic_inc(&sb->s_active);
-                mnt->mnt_sb = sb;
-                mnt->mnt_root = dget(root);
-                mnt->mnt_mountpoint = mnt->mnt_root;
+                mnt->mnt.mnt_sb = sb;
+                mnt->mnt.mnt_root = dget(root);
+                mnt->mnt_mountpoint = mnt->mnt.mnt_root;
                 mnt->mnt_parent = mnt;
+                br_write_lock(vfsmount_lock);
+                list_add_tail(&mnt->mnt_instance, &sb->s_mounts);
+                br_write_unlock(vfsmount_lock);
 
                 if (flag & CL_SLAVE) {
                         list_add(&mnt->mnt_slave, &old->mnt_slave_list);
@@ -753,9 +779,10 @@ static struct vfsmount *clone_mnt(struct vfsmount *old, struct dentry *root,
         return NULL;
 }
 
-static inline void mntfree(struct vfsmount *mnt)
+static inline void mntfree(struct mount *mnt)
 {
-        struct super_block *sb = mnt->mnt_sb;
+        struct vfsmount *m = &mnt->mnt;
+        struct super_block *sb = m->mnt_sb;
 
         /*
          * This probably indicates that somebody messed
@@ -768,32 +795,32 @@ static inline void mntfree(struct vfsmount *mnt)
          * so mnt_get_writers() below is safe.
          */
         WARN_ON(mnt_get_writers(mnt));
-        fsnotify_vfsmount_delete(mnt);
-        dput(mnt->mnt_root);
+        fsnotify_vfsmount_delete(m);
+        dput(m->mnt_root);
         free_vfsmnt(mnt);
         deactivate_super(sb);
 }
 
-static void mntput_no_expire(struct vfsmount *mnt)
+static void mntput_no_expire(struct mount *mnt)
 {
 put_again:
 #ifdef CONFIG_SMP
         br_read_lock(vfsmount_lock);
         if (likely(atomic_read(&mnt->mnt_longterm))) {
-                mnt_dec_count(mnt);
+                mnt_add_count(mnt, -1);
                 br_read_unlock(vfsmount_lock);
                 return;
         }
         br_read_unlock(vfsmount_lock);
 
         br_write_lock(vfsmount_lock);
-        mnt_dec_count(mnt);
+        mnt_add_count(mnt, -1);
         if (mnt_get_count(mnt)) {
                 br_write_unlock(vfsmount_lock);
                 return;
         }
 #else
-        mnt_dec_count(mnt);
+        mnt_add_count(mnt, -1);
         if (likely(mnt_get_count(mnt)))
                 return;
         br_write_lock(vfsmount_lock);
@@ -802,9 +829,10 @@ put_again:
                 mnt_add_count(mnt, mnt->mnt_pinned + 1);
                 mnt->mnt_pinned = 0;
                 br_write_unlock(vfsmount_lock);
-                acct_auto_close_mnt(mnt);
+                acct_auto_close_mnt(&mnt->mnt);
                 goto put_again;
         }
+        list_del(&mnt->mnt_instance);
         br_write_unlock(vfsmount_lock);
         mntfree(mnt);
 }
@@ -812,10 +840,11 @@ put_again:
 void mntput(struct vfsmount *mnt)
 {
         if (mnt) {
+                struct mount *m = real_mount(mnt);
                 /* avoid cacheline pingpong, hope gcc doesn't get "smart" */
-                if (unlikely(mnt->mnt_expiry_mark))
-                        mnt->mnt_expiry_mark = 0;
-                mntput_no_expire(mnt);
+                if (unlikely(m->mnt_expiry_mark))
+                        m->mnt_expiry_mark = 0;
+                mntput_no_expire(m);
         }
 }
 EXPORT_SYMBOL(mntput);
@@ -823,7 +852,7 @@ EXPORT_SYMBOL(mntput);
 struct vfsmount *mntget(struct vfsmount *mnt)
 {
         if (mnt)
-                mnt_inc_count(mnt);
+                mnt_add_count(real_mount(mnt), 1);
         return mnt;
 }
 EXPORT_SYMBOL(mntget);
@@ -831,16 +860,17 @@ EXPORT_SYMBOL(mntget);
 void mnt_pin(struct vfsmount *mnt)
 {
         br_write_lock(vfsmount_lock);
-        mnt->mnt_pinned++;
+        real_mount(mnt)->mnt_pinned++;
         br_write_unlock(vfsmount_lock);
 }
 EXPORT_SYMBOL(mnt_pin);
 
-void mnt_unpin(struct vfsmount *mnt)
+void mnt_unpin(struct vfsmount *m)
 {
+        struct mount *mnt = real_mount(m);
         br_write_lock(vfsmount_lock);
         if (mnt->mnt_pinned) {
-                mnt_inc_count(mnt);
+                mnt_add_count(mnt, 1);
                 mnt->mnt_pinned--;
         }
         br_write_unlock(vfsmount_lock);
@@ -858,12 +888,12 @@ static inline void mangle(struct seq_file *m, const char *s)
  *
  * See also save_mount_options().
  */
-int generic_show_options(struct seq_file *m, struct vfsmount *mnt)
+int generic_show_options(struct seq_file *m, struct dentry *root)
 {
         const char *options;
 
         rcu_read_lock();
-        options = rcu_dereference(mnt->mnt_sb->s_options);
+        options = rcu_dereference(root->d_sb->s_options);
 
         if (options != NULL && options[0]) {
                 seq_putc(m, ',');
@@ -907,10 +937,10 @@ void replace_mount_options(struct super_block *sb, char *options)
 EXPORT_SYMBOL(replace_mount_options);
 
 #ifdef CONFIG_PROC_FS
-/* iterator */
+/* iterator; we want it to have access to namespace_sem, thus here... */
 static void *m_start(struct seq_file *m, loff_t *pos)
 {
-        struct proc_mounts *p = m->private;
+        struct proc_mounts *p = container_of(m, struct proc_mounts, m);
 
         down_read(&namespace_sem);
         return seq_list_start(&p->ns->list, *pos);
@@ -918,7 +948,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
 
 static void *m_next(struct seq_file *m, void *v, loff_t *pos)
 {
-        struct proc_mounts *p = m->private;
+        struct proc_mounts *p = container_of(m, struct proc_mounts, m);
 
         return seq_list_next(v, &p->ns->list, pos);
 }
@@ -928,219 +958,18 @@ static void m_stop(struct seq_file *m, void *v)
         up_read(&namespace_sem);
 }
 
-int mnt_had_events(struct proc_mounts *p)
+static int m_show(struct seq_file *m, void *v)
 {
-        struct mnt_namespace *ns = p->ns;
-        int res = 0;
-
-        br_read_lock(vfsmount_lock);
-        if (p->m.poll_event != ns->event) {
-                p->m.poll_event = ns->event;
-                res = 1;
-        }
-        br_read_unlock(vfsmount_lock);
-
-        return res;
-}
-
-struct proc_fs_info {
-        int flag;
-        const char *str;
-};
-
-static int show_sb_opts(struct seq_file *m, struct super_block *sb)
-{
-        static const struct proc_fs_info fs_info[] = {
-                { MS_SYNCHRONOUS, ",sync" },
-                { MS_DIRSYNC, ",dirsync" },
-                { MS_MANDLOCK, ",mand" },
-                { 0, NULL }
-        };
-        const struct proc_fs_info *fs_infop;
-
-        for (fs_infop = fs_info; fs_infop->flag; fs_infop++) {
-                if (sb->s_flags & fs_infop->flag)
-                        seq_puts(m, fs_infop->str);
-        }
-
-        return security_sb_show_options(m, sb);
-}
-
-static void show_mnt_opts(struct seq_file *m, struct vfsmount *mnt)
-{
-        static const struct proc_fs_info mnt_info[] = {
-                { MNT_NOSUID, ",nosuid" },
-                { MNT_NODEV, ",nodev" },
-                { MNT_NOEXEC, ",noexec" },
-                { MNT_NOATIME, ",noatime" },
-                { MNT_NODIRATIME, ",nodiratime" },
-                { MNT_RELATIME, ",relatime" },
-                { 0, NULL }
-        };
-        const struct proc_fs_info *fs_infop;
-
-        for (fs_infop = mnt_info; fs_infop->flag; fs_infop++) {
-                if (mnt->mnt_flags & fs_infop->flag)
-                        seq_puts(m, fs_infop->str);
-        }
-}
-
-static void show_type(struct seq_file *m, struct super_block *sb)
-{
-        mangle(m, sb->s_type->name);
-        if (sb->s_subtype && sb->s_subtype[0]) {
-                seq_putc(m, '.');
-                mangle(m, sb->s_subtype);
-        }
-}
-
-static int show_vfsmnt(struct seq_file *m, void *v)
-{
-        struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
-        int err = 0;
-        struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
-
-        if (mnt->mnt_sb->s_op->show_devname) {
-                err = mnt->mnt_sb->s_op->show_devname(m, mnt);
-                if (err)
-                        goto out;
-        } else {
-                mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
-        }
-        seq_putc(m, ' ');
-        seq_path(m, &mnt_path, " \t\n\\");
-        seq_putc(m, ' ');
-        show_type(m, mnt->mnt_sb);
-        seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw");
-        err = show_sb_opts(m, mnt->mnt_sb);
-        if (err)
-                goto out;
-        show_mnt_opts(m, mnt);
-        if (mnt->mnt_sb->s_op->show_options)
-                err = mnt->mnt_sb->s_op->show_options(m, mnt);
-        seq_puts(m, " 0 0\n");
-out:
-        return err;
+        struct proc_mounts *p = container_of(m, struct proc_mounts, m);
+        struct mount *r = list_entry(v, struct mount, mnt_list);
+        return p->show(m, &r->mnt);
 }
 
 const struct seq_operations mounts_op = {
         .start  = m_start,
         .next   = m_next,
         .stop   = m_stop,
-        .show   = show_vfsmnt
-};
-
-static int show_mountinfo(struct seq_file *m, void *v)
-{
-        struct proc_mounts *p = m->private;
-        struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
-        struct super_block *sb = mnt->mnt_sb;
-        struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
-        struct path root = p->root;
-        int err = 0;
-
-        seq_printf(m, "%i %i %u:%u ", mnt->mnt_id, mnt->mnt_parent->mnt_id,
-                   MAJOR(sb->s_dev), MINOR(sb->s_dev));
-        if (sb->s_op->show_path)
-                err = sb->s_op->show_path(m, mnt);
-        else
-                seq_dentry(m, mnt->mnt_root, " \t\n\\");
-        if (err)
-                goto out;
-        seq_putc(m, ' ');
-
-        /* mountpoints outside of chroot jail will give SEQ_SKIP on this */
-        err = seq_path_root(m, &mnt_path, &root, " \t\n\\");
-        if (err)
-                goto out;
-
-        seq_puts(m, mnt->mnt_flags & MNT_READONLY ? " ro" : " rw");
-        show_mnt_opts(m, mnt);
-
-        /* Tagged fields ("foo:X" or "bar") */
-        if (IS_MNT_SHARED(mnt))
-                seq_printf(m, " shared:%i", mnt->mnt_group_id);
-        if (IS_MNT_SLAVE(mnt)) {
-                int master = mnt->mnt_master->mnt_group_id;
-                int dom = get_dominating_id(mnt, &p->root);
-                seq_printf(m, " master:%i", master);
-                if (dom && dom != master)
-                        seq_printf(m, " propagate_from:%i", dom);
-        }
-        if (IS_MNT_UNBINDABLE(mnt))
-                seq_puts(m, " unbindable");
-
-        /* Filesystem specific data */
-        seq_puts(m, " - ");
-        show_type(m, sb);
-        seq_putc(m, ' ');
-        if (sb->s_op->show_devname)
-                err = sb->s_op->show_devname(m, mnt);
-        else
-                mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
-        if (err)
-                goto out;
-        seq_puts(m, sb->s_flags & MS_RDONLY ? " ro" : " rw");
-        err = show_sb_opts(m, sb);
-        if (err)
-                goto out;
-        if (sb->s_op->show_options)
-                err = sb->s_op->show_options(m, mnt);
-        seq_putc(m, '\n');
-out:
-        return err;
-}
-
-const struct seq_operations mountinfo_op = {
-        .start  = m_start,
-        .next   = m_next,
-        .stop   = m_stop,
-        .show   = show_mountinfo,
-};
-
-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 */
-        if (mnt->mnt_sb->s_op->show_devname) {
-                seq_puts(m, "device ");
-                err = mnt->mnt_sb->s_op->show_devname(m, mnt);
-        } else {
-                if (mnt->mnt_devname) {
-                        seq_puts(m, "device ");
-                        mangle(m, mnt->mnt_devname);
-                } else
-                        seq_puts(m, "no device");
-        }
-
-        /* mount point */
-        seq_puts(m, " mounted on ");
-        seq_path(m, &mnt_path, " \t\n\\");
-        seq_putc(m, ' ');
-
-        /* file system type */
-        seq_puts(m, "with fstype ");
-        show_type(m, mnt->mnt_sb);
-
-        /* optional statistics */
-        if (mnt->mnt_sb->s_op->show_stats) {
-                seq_putc(m, ' ');
-                if (!err)
-                        err = mnt->mnt_sb->s_op->show_stats(m, mnt);
-        }
-
-        seq_putc(m, '\n');
-        return err;
-}
-
-const struct seq_operations mountstats_op = {
-        .start  = m_start,
-        .next   = m_next,
-        .stop   = m_stop,
-        .show   = show_vfsstat,
+        .show   = m_show,
 };
 #endif  /* CONFIG_PROC_FS */
 
@@ -1152,11 +981,13 @@ const struct seq_operations mountstats_op = {
  * open files, pwds, chroots or sub mounts that are
  * busy.
  */
-int may_umount_tree(struct vfsmount *mnt)
+int may_umount_tree(struct vfsmount *m)
 {
+        struct mount *mnt = real_mount(m);
         int actual_refs = 0;
         int minimum_refs = 0;
-        struct vfsmount *p;
+        struct mount *p;
+        BUG_ON(!m);
 
         /* write lock needed for mnt_get_count */
         br_write_lock(vfsmount_lock);
@@ -1192,7 +1023,7 @@ int may_umount(struct vfsmount *mnt)
         int ret = 1;
         down_read(&namespace_sem);
         br_write_lock(vfsmount_lock);
-        if (propagate_mount_busy(mnt, 2))
+        if (propagate_mount_busy(real_mount(mnt), 2))
                 ret = 0;
         br_write_unlock(vfsmount_lock);
         up_read(&namespace_sem);
@@ -1203,25 +1034,25 @@ EXPORT_SYMBOL(may_umount);
 
 void release_mounts(struct list_head *head)
 {
-        struct vfsmount *mnt;
+        struct mount *mnt;
         while (!list_empty(head)) {
-                mnt = list_first_entry(head, struct vfsmount, mnt_hash);
+                mnt = list_first_entry(head, struct mount, mnt_hash);
                 list_del_init(&mnt->mnt_hash);
-                if (mnt->mnt_parent != mnt) {
+                if (mnt_has_parent(mnt)) {
                         struct dentry *dentry;
-                        struct vfsmount *m;
+                        struct mount *m;
 
                         br_write_lock(vfsmount_lock);
                         dentry = mnt->mnt_mountpoint;
                         m = mnt->mnt_parent;
-                        mnt->mnt_mountpoint = mnt->mnt_root;
+                        mnt->mnt_mountpoint = mnt->mnt.mnt_root;
                         mnt->mnt_parent = mnt;
                         m->mnt_ghosts--;
                         br_write_unlock(vfsmount_lock);
                         dput(dentry);
-                        mntput(m);
+                        mntput(&m->mnt);
                 }
-                mntput(mnt);
+                mntput(&mnt->mnt);
         }
 }
 
@@ -1229,10 +1060,10 @@ void release_mounts(struct list_head *head)
  * vfsmount lock must be held for write
  * namespace_sem must be held for write
  */
-void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill)
+void umount_tree(struct mount *mnt, int propagate, struct list_head *kill)
 {
         LIST_HEAD(tmp_list);
-        struct vfsmount *p;
+        struct mount *p;
 
         for (p = mnt; p; p = next_mnt(p, mnt))
                 list_move(&p->mnt_hash, &tmp_list);
@@ -1247,24 +1078,24 @@ void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill)
                 p->mnt_ns = NULL;
                 __mnt_make_shortterm(p);
                 list_del_init(&p->mnt_child);
-                if (p->mnt_parent != p) {
+                if (mnt_has_parent(p)) {
                         p->mnt_parent->mnt_ghosts++;
-                        dentry_reset_mounted(p->mnt_parent, p->mnt_mountpoint);
+                        dentry_reset_mounted(p->mnt_mountpoint);
                 }
                 change_mnt_propagation(p, MS_PRIVATE);
         }
         list_splice(&tmp_list, kill);
 }
 
-static void shrink_submounts(struct vfsmount *mnt, struct list_head *umounts);
+static void shrink_submounts(struct mount *mnt, struct list_head *umounts);
 
-static int do_umount(struct vfsmount *mnt, int flags)
+static int do_umount(struct mount *mnt, int flags)
 {
-        struct super_block *sb = mnt->mnt_sb;
+        struct super_block *sb = mnt->mnt.mnt_sb;
         int retval;
         LIST_HEAD(umount_list);
 
-        retval = security_sb_umount(mnt, flags);
+        retval = security_sb_umount(&mnt->mnt, flags);
         if (retval)
                 return retval;
 
@@ -1275,7 +1106,7 @@ 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->root.mnt ||
+                if (&mnt->mnt == current->fs->root.mnt ||
                     flags & (MNT_FORCE | MNT_DETACH))
                         return -EINVAL;
 
@@ -1317,7 +1148,7 @@ 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->root.mnt && !(flags & MNT_DETACH)) {
+        if (&mnt->mnt == current->fs->root.mnt && !(flags & MNT_DETACH)) {
                 /*
                  * Special case for "unmounting" root ...
                  * we just try to remount it readonly.
@@ -1359,6 +1190,7 @@ static int do_umount(struct vfsmount *mnt, int flags)
 SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
 {
         struct path path;
+        struct mount *mnt;
         int retval;
         int lookup_flags = 0;
 
@@ -1371,21 +1203,22 @@ SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
         retval = user_path_at(AT_FDCWD, name, lookup_flags, &path);
         if (retval)
                 goto out;
+        mnt = real_mount(path.mnt);
         retval = -EINVAL;
         if (path.dentry != path.mnt->mnt_root)
                 goto dput_and_out;
-        if (!check_mnt(path.mnt))
+        if (!check_mnt(mnt))
                 goto dput_and_out;
 
         retval = -EPERM;
         if (!capable(CAP_SYS_ADMIN))
                 goto dput_and_out;
 
-        retval = do_umount(path.mnt, flags);
+        retval = do_umount(mnt, flags);
 dput_and_out:
         /* we mustn't call path_put() as that would clear mnt_expiry_mark */
         dput(path.dentry);
-        mntput_no_expire(path.mnt);
+        mntput_no_expire(mnt);
 out:
         return retval;
 }
@@ -1420,10 +1253,10 @@ static int mount_is_safe(struct path *path)
 #endif
 }
 
-struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
+struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,
                                         int flag)
 {
-        struct vfsmount *res, *p, *q, *r, *s;
+        struct mount *res, *p, *q, *r;
         struct path path;
 
         if (!(flag & CL_COPY_ALL) && IS_MNT_UNBINDABLE(mnt))
@@ -1436,6 +1269,7 @@ struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
 
         p = mnt;
         list_for_each_entry(r, &mnt->mnt_mounts, mnt_child) {
+                struct mount *s;
                 if (!is_subdir(r->mnt_mountpoint, dentry))
                         continue;
 
@@ -1449,9 +1283,9 @@ struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
                                 q = q->mnt_parent;
                         }
                         p = s;
-                        path.mnt = q;
+                        path.mnt = &q->mnt;
                         path.dentry = p->mnt_mountpoint;
-                        q = clone_mnt(p, p->mnt_root, flag);
+                        q = clone_mnt(p, p->mnt.mnt_root, flag);
                         if (!q)
                                 goto Enomem;
                         br_write_lock(vfsmount_lock);
@@ -1474,11 +1308,12 @@ Enomem:
 
 struct vfsmount *collect_mounts(struct path *path)
 {
-        struct vfsmount *tree;
+        struct mount *tree;
         down_write(&namespace_sem);
-        tree = copy_tree(path->mnt, path->dentry, CL_COPY_ALL | CL_PRIVATE);
+        tree = copy_tree(real_mount(path->mnt), path->dentry,
+                         CL_COPY_ALL | CL_PRIVATE);
         up_write(&namespace_sem);
-        return tree;
+        return tree ? &tree->mnt : NULL;
 }
 
 void drop_collected_mounts(struct vfsmount *mnt)
@@ -1486,7 +1321,7 @@ void drop_collected_mounts(struct vfsmount *mnt)
         LIST_HEAD(umount_list);
         down_write(&namespace_sem);
         br_write_lock(vfsmount_lock);
-        umount_tree(mnt, 0, &umount_list);
+        umount_tree(real_mount(mnt), 0, &umount_list);
         br_write_unlock(vfsmount_lock);
         up_write(&namespace_sem);
         release_mounts(&umount_list);
@@ -1495,21 +1330,21 @@ void drop_collected_mounts(struct vfsmount *mnt)
 int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg,
                    struct vfsmount *root)
 {
-        struct vfsmount *mnt;
+        struct mount *mnt;
         int res = f(root, arg);
         if (res)
                 return res;
-        list_for_each_entry(mnt, &root->mnt_list, mnt_list) {
-                res = f(mnt, arg);
+        list_for_each_entry(mnt, &real_mount(root)->mnt_list, mnt_list) {
+                res = f(&mnt->mnt, arg);
                 if (res)
                         return res;
         }
         return 0;
 }
 
-static void cleanup_group_ids(struct vfsmount *mnt, struct vfsmount *end)
+static void cleanup_group_ids(struct mount *mnt, struct mount *end)
 {
-        struct vfsmount *p;
+        struct mount *p;
 
         for (p = mnt; p != end; p = next_mnt(p, mnt)) {
                 if (p->mnt_group_id && !IS_MNT_SHARED(p))
@@ -1517,9 +1352,9 @@ static void cleanup_group_ids(struct vfsmount *mnt, struct vfsmount *end)
         }
 }
 
-static int invent_group_ids(struct vfsmount *mnt, bool recurse)
+static int invent_group_ids(struct mount *mnt, bool recurse)
 {
-        struct vfsmount *p;
+        struct mount *p;
 
         for (p = mnt; p; p = recurse ? next_mnt(p, mnt) : NULL) {
                 if (!p->mnt_group_id && !IS_MNT_SHARED(p)) {
@@ -1597,13 +1432,13 @@ static int invent_group_ids(struct vfsmount *mnt, bool recurse)
  * Must be called without spinlocks held, since this function can sleep
  * in allocations.
  */
-static int attach_recursive_mnt(struct vfsmount *source_mnt,
+static int attach_recursive_mnt(struct mount *source_mnt,
                         struct path *path, struct path *parent_path)
 {
         LIST_HEAD(tree_list);
-        struct vfsmount *dest_mnt = path->mnt;
+        struct mount *dest_mnt = real_mount(path->mnt);
         struct dentry *dest_dentry = path->dentry;
-        struct vfsmount *child, *p;
+        struct mount *child, *p;
         int err;
 
         if (IS_MNT_SHARED(dest_mnt)) {
@@ -1624,7 +1459,7 @@ static int attach_recursive_mnt(struct vfsmount *source_mnt,
         if (parent_path) {
                 detach_mnt(source_mnt, parent_path);
                 attach_mnt(source_mnt, path);
-                touch_mnt_namespace(parent_path->mnt->mnt_ns);
+                touch_mnt_namespace(source_mnt->mnt_ns);
         } else {
                 mnt_set_mountpoint(dest_mnt, dest_dentry, source_mnt);
                 commit_tree(source_mnt);
@@ -1672,13 +1507,13 @@ static void unlock_mount(struct path *path)
         mutex_unlock(&path->dentry->d_inode->i_mutex);
 }
 
-static int graft_tree(struct vfsmount *mnt, struct path *path)
+static int graft_tree(struct mount *mnt, struct path *path)
 {
-        if (mnt->mnt_sb->s_flags & MS_NOUSER)
+        if (mnt->mnt.mnt_sb->s_flags & MS_NOUSER)
                 return -EINVAL;
 
         if (S_ISDIR(path->dentry->d_inode->i_mode) !=
-              S_ISDIR(mnt->mnt_root->d_inode->i_mode))
+              S_ISDIR(mnt->mnt.mnt_root->d_inode->i_mode))
                 return -ENOTDIR;
 
         if (d_unlinked(path->dentry))
@@ -1709,7 +1544,8 @@ static int flags_to_propagation_type(int flags)
  */
 static int do_change_type(struct path *path, int flag)
 {
-        struct vfsmount *m, *mnt = path->mnt;
+        struct mount *m;
+        struct mount *mnt = real_mount(path->mnt);
         int recurse = flag & MS_REC;
         int type;
         int err = 0;
@@ -1749,7 +1585,7 @@ static int do_loopback(struct path *path, char *old_name,
 {
         LIST_HEAD(umount_list);
         struct path old_path;
-        struct vfsmount *mnt = NULL;
+        struct mount *mnt = NULL, *old;
         int err = mount_is_safe(path);
         if (err)
                 return err;
@@ -1763,18 +1599,20 @@ static int do_loopback(struct path *path, char *old_name,
         if (err)
                 goto out;
 
+        old = real_mount(old_path.mnt);
+
         err = -EINVAL;
-        if (IS_MNT_UNBINDABLE(old_path.mnt))
+        if (IS_MNT_UNBINDABLE(old))
                 goto out2;
 
-        if (!check_mnt(path->mnt) || !check_mnt(old_path.mnt))
+        if (!check_mnt(real_mount(path->mnt)) || !check_mnt(old))
                 goto out2;
 
         err = -ENOMEM;
         if (recurse)
-                mnt = copy_tree(old_path.mnt, old_path.dentry, 0);
+                mnt = copy_tree(old, old_path.dentry, 0);
         else
-                mnt = clone_mnt(old_path.mnt, old_path.dentry, 0);
+                mnt = clone_mnt(old, old_path.dentry, 0);
 
         if (!mnt)
                 goto out2;
@@ -1804,9 +1642,9 @@ static int change_mount_flags(struct vfsmount *mnt, int ms_flags)
                 return 0;
 
         if (readonly_request)
-                error = mnt_make_readonly(mnt);
+                error = mnt_make_readonly(real_mount(mnt));
         else
-                __mnt_unmake_readonly(mnt);
+                __mnt_unmake_readonly(real_mount(mnt));
         return error;
 }
 
@@ -1820,11 +1658,12 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
 {
         int err;
         struct super_block *sb = path->mnt->mnt_sb;
+        struct mount *mnt = real_mount(path->mnt);
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        if (!check_mnt(path->mnt))
+        if (!check_mnt(mnt))
                 return -EINVAL;
 
         if (path->dentry != path->mnt->mnt_root)
@@ -1841,22 +1680,22 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
                 err = do_remount_sb(sb, flags, data, 0);
         if (!err) {
                 br_write_lock(vfsmount_lock);
-                mnt_flags |= path->mnt->mnt_flags & MNT_PROPAGATION_MASK;
-                path->mnt->mnt_flags = mnt_flags;
+                mnt_flags |= mnt->mnt.mnt_flags & MNT_PROPAGATION_MASK;
+                mnt->mnt.mnt_flags = mnt_flags;
                 br_write_unlock(vfsmount_lock);
         }
         up_write(&sb->s_umount);
         if (!err) {
                 br_write_lock(vfsmount_lock);
-                touch_mnt_namespace(path->mnt->mnt_ns);
+                touch_mnt_namespace(mnt->mnt_ns);
                 br_write_unlock(vfsmount_lock);
         }
         return err;
 }
 
-static inline int tree_contains_unbindable(struct vfsmount *mnt)
+static inline int tree_contains_unbindable(struct mount *mnt)
 {
-        struct vfsmount *p;
+        struct mount *p;
         for (p = mnt; p; p = next_mnt(p, mnt)) {
                 if (IS_MNT_UNBINDABLE(p))
                         return 1;
@@ -1867,7 +1706,8 @@ static inline int tree_contains_unbindable(struct vfsmount *mnt)
 static int do_move_mount(struct path *path, char *old_name)
 {
         struct path old_path, parent_path;
-        struct vfsmount *p;
+        struct mount *p;
+        struct mount *old;
         int err = 0;
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
@@ -1881,8 +1721,11 @@ static int do_move_mount(struct path *path, char *old_name)
         if (err < 0)
                 goto out;
 
+        old = real_mount(old_path.mnt);
+        p = real_mount(path->mnt);
+
         err = -EINVAL;
-        if (!check_mnt(path->mnt) || !check_mnt(old_path.mnt))
+        if (!check_mnt(p) || !check_mnt(old))
                 goto out1;
 
         if (d_unlinked(path->dentry))
@@ -1892,7 +1735,7 @@ static int do_move_mount(struct path *path, char *old_name)
         if (old_path.dentry != old_path.mnt->mnt_root)
                 goto out1;
 
-        if (old_path.mnt == old_path.mnt->mnt_parent)
+        if (!mnt_has_parent(old))
                 goto out1;
 
         if (S_ISDIR(path->dentry->d_inode->i_mode) !=
@@ -1901,28 +1744,26 @@ static int do_move_mount(struct path *path, char *old_name)
         /*
          * Don't move a mount residing in a shared parent.
          */
-        if (old_path.mnt->mnt_parent &&
-            IS_MNT_SHARED(old_path.mnt->mnt_parent))
+        if (IS_MNT_SHARED(old->mnt_parent))
                 goto out1;
         /*
          * Don't move a mount tree containing unbindable mounts to a destination
          * mount which is shared.
          */
-        if (IS_MNT_SHARED(path->mnt) &&
-            tree_contains_unbindable(old_path.mnt))
+        if (IS_MNT_SHARED(p) && tree_contains_unbindable(old))
                 goto out1;
         err = -ELOOP;
-        for (p = path->mnt; p->mnt_parent != p; p = p->mnt_parent)
-                if (p == old_path.mnt)
+        for (; mnt_has_parent(p); p = p->mnt_parent)
+                if (p == old)
                         goto out1;
 
-        err = attach_recursive_mnt(old_path.mnt, path, &parent_path);
+        err = attach_recursive_mnt(old, path, &parent_path);
         if (err)
                 goto out1;
 
         /* if the mount is moved, it should no longer be expire
          * automatically */
-        list_del_init(&old_path.mnt->mnt_expire);
+        list_del_init(&old->mnt_expire);
 out1:
         unlock_mount(path);
 out:
@@ -1955,7 +1796,7 @@ static struct vfsmount *fs_set_subtype(struct vfsmount *mnt, const char *fstype)
         return ERR_PTR(err);
 }
 
-struct vfsmount *
+static struct vfsmount *
 do_kern_mount(const char *fstype, int flags, const char *name, void *data)
 {
         struct file_system_type *type = get_fs_type(fstype);
@@ -1969,12 +1810,11 @@ do_kern_mount(const char *fstype, int flags, const char *name, void *data)
         put_filesystem(type);
         return mnt;
 }
-EXPORT_SYMBOL_GPL(do_kern_mount);
 
 /*
  * add a mount into a namespace's mount tree
  */
-static int do_add_mount(struct vfsmount *newmnt, struct path *path, int mnt_flags)
+static int do_add_mount(struct mount *newmnt, struct path *path, int mnt_flags)
 {
         int err;
 
@@ -1985,20 +1825,20 @@ static int do_add_mount(struct vfsmount *newmnt, struct path *path, int mnt_flag
                 return err;
 
         err = -EINVAL;
-        if (!(mnt_flags & MNT_SHRINKABLE) && !check_mnt(path->mnt))
+        if (!(mnt_flags & MNT_SHRINKABLE) && !check_mnt(real_mount(path->mnt)))
                 goto unlock;
 
         /* Refuse the same filesystem on the same mount point */
         err = -EBUSY;
-        if (path->mnt->mnt_sb == newmnt->mnt_sb &&
+        if (path->mnt->mnt_sb == newmnt->mnt.mnt_sb &&
             path->mnt->mnt_root == path->dentry)
                 goto unlock;
 
         err = -EINVAL;
-        if (S_ISLNK(newmnt->mnt_root->d_inode->i_mode))
+        if (S_ISLNK(newmnt->mnt.mnt_root->d_inode->i_mode))
                 goto unlock;
 
-        newmnt->mnt_flags = mnt_flags;
+        newmnt->mnt.mnt_flags = mnt_flags;
         err = graft_tree(newmnt, path);
 
 unlock:
@@ -2027,7 +1867,7 @@ static int do_new_mount(struct path *path, char *type, int flags,
         if (IS_ERR(mnt))
                 return PTR_ERR(mnt);
 
-        err = do_add_mount(mnt, path, mnt_flags);
+        err = do_add_mount(real_mount(mnt), path, mnt_flags);
         if (err)
                 mntput(mnt);
         return err;
@@ -2035,11 +1875,12 @@ static int do_new_mount(struct path *path, char *type, int flags,
 
 int finish_automount(struct vfsmount *m, struct path *path)
 {
+        struct mount *mnt = real_mount(m);
         int err;
         /* The new mount record should have at least 2 refs to prevent it being
          * expired before we get a chance to add it
          */
-        BUG_ON(mnt_get_count(m) < 2);
+        BUG_ON(mnt_get_count(mnt) < 2);
 
         if (m->mnt_sb == path->mnt->mnt_sb &&
             m->mnt_root == path->dentry) {
@@ -2047,15 +1888,15 @@ int finish_automount(struct vfsmount *m, struct path *path)
                 goto fail;
         }
 
-        err = do_add_mount(m, path, path->mnt->mnt_flags | MNT_SHRINKABLE);
+        err = do_add_mount(mnt, path, path->mnt->mnt_flags | MNT_SHRINKABLE);
         if (!err)
                 return 0;
 fail:
         /* remove m from any expiration list it may be on */
-        if (!list_empty(&m->mnt_expire)) {
+        if (!list_empty(&mnt->mnt_expire)) {
                 down_write(&namespace_sem);
                 br_write_lock(vfsmount_lock);
-                list_del_init(&m->mnt_expire);
+                list_del_init(&mnt->mnt_expire);
                 br_write_unlock(vfsmount_lock);
                 up_write(&namespace_sem);
         }
@@ -2074,7 +1915,7 @@ void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list)
         down_write(&namespace_sem);
         br_write_lock(vfsmount_lock);
 
-        list_add_tail(&mnt->mnt_expire, expiry_list);
+        list_add_tail(&real_mount(mnt)->mnt_expire, expiry_list);
 
         br_write_unlock(vfsmount_lock);
         up_write(&namespace_sem);
@@ -2088,7 +1929,7 @@ EXPORT_SYMBOL(mnt_set_expiry);
  */
 void mark_mounts_for_expiry(struct list_head *mounts)
 {
-        struct vfsmount *mnt, *next;
+        struct mount *mnt, *next;
         LIST_HEAD(graveyard);
         LIST_HEAD(umounts);
 
@@ -2111,7 +1952,7 @@ void mark_mounts_for_expiry(struct list_head *mounts)
                 list_move(&mnt->mnt_expire, &graveyard);
         }
         while (!list_empty(&graveyard)) {
-                mnt = list_first_entry(&graveyard, struct vfsmount, mnt_expire);
+                mnt = list_first_entry(&graveyard, struct mount, mnt_expire);
                 touch_mnt_namespace(mnt->mnt_ns);
                 umount_tree(mnt, 1, &umounts);
         }
@@ -2129,9 +1970,9 @@ EXPORT_SYMBOL_GPL(mark_mounts_for_expiry);
  * search the list of submounts for a given mountpoint, and move any
  * shrinkable submounts to the 'graveyard' list.
  */
-static int select_submounts(struct vfsmount *parent, struct list_head *graveyard)
+static int select_submounts(struct mount *parent, struct list_head *graveyard)
 {
-        struct vfsmount *this_parent = parent;
+        struct mount *this_parent = parent;
         struct list_head *next;
         int found = 0;
 
@@ -2140,10 +1981,10 @@ repeat:
 resume:
         while (next != &this_parent->mnt_mounts) {
                 struct list_head *tmp = next;
-                struct vfsmount *mnt = list_entry(tmp, struct vfsmount, mnt_child);
+                struct mount *mnt = list_entry(tmp, struct mount, mnt_child);
 
                 next = tmp->next;
-                if (!(mnt->mnt_flags & MNT_SHRINKABLE))
+                if (!(mnt->mnt.mnt_flags & MNT_SHRINKABLE))
                         continue;
                 /*
                  * Descend a level if the d_mounts list is non-empty.
@@ -2175,15 +2016,15 @@ resume:
  *
  * vfsmount_lock must be held for write
  */
-static void shrink_submounts(struct vfsmount *mnt, struct list_head *umounts)
+static void shrink_submounts(struct mount *mnt, struct list_head *umounts)
 {
         LIST_HEAD(graveyard);
-        struct vfsmount *m;
+        struct mount *m;
 
         /* extract submounts of 'mountpoint' from the expiration list */
         while (select_submounts(mnt, &graveyard)) {
                 while (!list_empty(&graveyard)) {
-                        m = list_first_entry(&graveyard, struct vfsmount,
+                        m = list_first_entry(&graveyard, struct mount,
                                                 mnt_expire);
                         touch_mnt_namespace(m->mnt_ns);
                         umount_tree(m, 1, umounts);
@@ -2370,12 +2211,13 @@ static struct mnt_namespace *alloc_mnt_ns(void)
 
 void mnt_make_longterm(struct vfsmount *mnt)
 {
-        __mnt_make_longterm(mnt);
+        __mnt_make_longterm(real_mount(mnt));
 }
 
-void mnt_make_shortterm(struct vfsmount *mnt)
+void mnt_make_shortterm(struct vfsmount *m)
 {
 #ifdef CONFIG_SMP
+        struct mount *mnt = real_mount(m);
         if (atomic_add_unless(&mnt->mnt_longterm, -1, 1))
                 return;
         br_write_lock(vfsmount_lock);
@@ -2393,7 +2235,9 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
 {
         struct mnt_namespace *new_ns;
         struct vfsmount *rootmnt = NULL, *pwdmnt = NULL;
-        struct vfsmount *p, *q;
+        struct mount *p, *q;
+        struct mount *old = mnt_ns->root;
+        struct mount *new;
 
         new_ns = alloc_mnt_ns();
         if (IS_ERR(new_ns))
@@ -2401,15 +2245,15 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
 
         down_write(&namespace_sem);
         /* First pass: copy the tree topology */
-        new_ns->root = copy_tree(mnt_ns->root, mnt_ns->root->mnt_root,
-                                        CL_COPY_ALL | CL_EXPIRE);
-        if (!new_ns->root) {
+        new = copy_tree(old, old->mnt.mnt_root, CL_COPY_ALL | CL_EXPIRE);
+        if (!new) {
                 up_write(&namespace_sem);
                 kfree(new_ns);
                 return ERR_PTR(-ENOMEM);
         }
+        new_ns->root = new;
         br_write_lock(vfsmount_lock);
-        list_add_tail(&new_ns->list, &new_ns->root->mnt_list);
+        list_add_tail(&new_ns->list, &new->mnt_list);
         br_write_unlock(vfsmount_lock);
 
         /*
@@ -2417,27 +2261,27 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
          * as belonging to new namespace.  We have already acquired a private
          * fs_struct, so tsk->fs->lock is not needed.
          */
-        p = mnt_ns->root;
-        q = new_ns->root;
+        p = old;
+        q = new;
         while (p) {
                 q->mnt_ns = new_ns;
                 __mnt_make_longterm(q);
                 if (fs) {
-                        if (p == fs->root.mnt) {
-                                fs->root.mnt = mntget(q);
+                        if (&p->mnt == fs->root.mnt) {
+                                fs->root.mnt = mntget(&q->mnt);
                                 __mnt_make_longterm(q);
-                                mnt_make_shortterm(p);
-                                rootmnt = p;
+                                mnt_make_shortterm(&p->mnt);
+                                rootmnt = &p->mnt;
                         }
-                        if (p == fs->pwd.mnt) {
-                                fs->pwd.mnt = mntget(q);
+                        if (&p->mnt == fs->pwd.mnt) {
+                                fs->pwd.mnt = mntget(&q->mnt);
                                 __mnt_make_longterm(q);
-                                mnt_make_shortterm(p);
-                                pwdmnt = p;
+                                mnt_make_shortterm(&p->mnt);
+                                pwdmnt = &p->mnt;
                         }
                 }
-                p = next_mnt(p, mnt_ns->root);
-                q = next_mnt(q, new_ns->root);
+                p = next_mnt(p, old);
+                q = next_mnt(q, new);
         }
         up_write(&namespace_sem);
 
@@ -2470,22 +2314,20 @@ struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
  * create_mnt_ns - creates a private namespace and adds a root filesystem
  * @mnt: pointer to the new root filesystem mountpoint
  */
-struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt)
+static struct mnt_namespace *create_mnt_ns(struct vfsmount *m)
 {
-        struct mnt_namespace *new_ns;
-
-        new_ns = alloc_mnt_ns();
+        struct mnt_namespace *new_ns = alloc_mnt_ns();
         if (!IS_ERR(new_ns)) {
+                struct mount *mnt = real_mount(m);
                 mnt->mnt_ns = new_ns;
                 __mnt_make_longterm(mnt);
                 new_ns->root = mnt;
-                list_add(&new_ns->list, &new_ns->root->mnt_list);
+                list_add(&new_ns->list, &mnt->mnt_list);
         } else {
-                mntput(mnt);
+                mntput(m);
         }
         return new_ns;
 }
-EXPORT_SYMBOL(create_mnt_ns);
 
 struct dentry *mount_subtree(struct vfsmount *mnt, const char *name)
 {
@@ -2559,6 +2401,31 @@ out_type:
 }
 
 /*
+ * Return true if path is reachable from root
+ *
+ * namespace_sem or vfsmount_lock is held
+ */
+bool is_path_reachable(struct mount *mnt, struct dentry *dentry,
+                         const struct path *root)
+{
+        while (&mnt->mnt != root->mnt && mnt_has_parent(mnt)) {
+                dentry = mnt->mnt_mountpoint;
+                mnt = mnt->mnt_parent;
+        }
+        return &mnt->mnt == root->mnt && is_subdir(dentry, root->dentry);
+}
+
+int path_is_under(struct path *path1, struct path *path2)
+{
+        int res;
+        br_read_lock(vfsmount_lock);
+        res = is_path_reachable(real_mount(path1->mnt), path1->dentry, path2);
+        br_read_unlock(vfsmount_lock);
+        return res;
+}
+EXPORT_SYMBOL(path_is_under);
+
+/*
  * pivot_root Semantics:
  * Moves the root file system of the current process to the directory put_old,
  * makes new_root as the new root file system of the current process, and sets
@@ -2586,8 +2453,8 @@ out_type:
 SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
                 const char __user *, put_old)
 {
-        struct vfsmount *tmp;
         struct path new, old, parent_path, root_parent, root;
+        struct mount *new_mnt, *root_mnt;
         int error;
 
         if (!capable(CAP_SYS_ADMIN))
@@ -2611,11 +2478,13 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
                 goto out3;
 
         error = -EINVAL;
-        if (IS_MNT_SHARED(old.mnt) ||
-                IS_MNT_SHARED(new.mnt->mnt_parent) ||
-                IS_MNT_SHARED(root.mnt->mnt_parent))
+        new_mnt = real_mount(new.mnt);
+        root_mnt = real_mount(root.mnt);
+        if (IS_MNT_SHARED(real_mount(old.mnt)) ||
+                IS_MNT_SHARED(new_mnt->mnt_parent) ||
+                IS_MNT_SHARED(root_mnt->mnt_parent))
                 goto out4;
-        if (!check_mnt(root.mnt) || !check_mnt(new.mnt))
+        if (!check_mnt(root_mnt) || !check_mnt(new_mnt))
                 goto out4;
         error = -ENOENT;
         if (d_unlinked(new.dentry))
@@ -2629,33 +2498,22 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
         error = -EINVAL;
         if (root.mnt->mnt_root != root.dentry)
                 goto out4; /* not a mountpoint */
-        if (root.mnt->mnt_parent == root.mnt)
+        if (!mnt_has_parent(root_mnt))
                 goto out4; /* not attached */
         if (new.mnt->mnt_root != new.dentry)
                 goto out4; /* not a mountpoint */
-        if (new.mnt->mnt_parent == new.mnt)
+        if (!mnt_has_parent(new_mnt))
                 goto out4; /* not attached */
         /* make sure we can reach put_old from new_root */
-        tmp = old.mnt;
-        if (tmp != new.mnt) {
-                for (;;) {
-                        if (tmp->mnt_parent == tmp)
-                                goto out4; /* already mounted on put_old */
-                        if (tmp->mnt_parent == new.mnt)
-                                break;
-                        tmp = tmp->mnt_parent;
-                }
-                if (!is_subdir(tmp->mnt_mountpoint, new.dentry))
-                        goto out4;
-        } else if (!is_subdir(old.dentry, new.dentry))
+        if (!is_path_reachable(real_mount(old.mnt), old.dentry, &new))
                 goto out4;
         br_write_lock(vfsmount_lock);
-        detach_mnt(new.mnt, &parent_path);
-        detach_mnt(root.mnt, &root_parent);
+        detach_mnt(new_mnt, &parent_path);
+        detach_mnt(root_mnt, &root_parent);
         /* mount old root on put_old */
-        attach_mnt(root.mnt, &old);
+        attach_mnt(root_mnt, &old);
         /* mount new_root on / */
-        attach_mnt(new.mnt, &root_parent);
+        attach_mnt(new_mnt, &root_parent);
         touch_mnt_namespace(current->nsproxy->mnt_ns);
         br_write_unlock(vfsmount_lock);
         chroot_fs_refs(&root, &new);
@@ -2693,8 +2551,8 @@ static void __init init_mount_tree(void)
         init_task.nsproxy->mnt_ns = ns;
         get_mnt_ns(ns);
 
-        root.mnt = ns->root;
-        root.dentry = ns->root->mnt_root;
+        root.mnt = mnt;
+        root.dentry = mnt->mnt_root;
 
         set_fs_pwd(current->fs, &root);
         set_fs_root(current->fs, &root);
@@ -2707,7 +2565,7 @@ void __init mnt_init(void)
 
         init_rwsem(&namespace_sem);
 
-        mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct vfsmount),
+        mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct mount),
                         0, SLAB_HWCACHE_ALIGN | SLAB_PANIC, NULL);
 
         mount_hashtable = (struct list_head *)__get_free_page(GFP_ATOMIC);
@@ -2747,7 +2605,6 @@ void put_mnt_ns(struct mnt_namespace *ns)
         release_mounts(&umount_list);
         kfree(ns);
 }
-EXPORT_SYMBOL(put_mnt_ns);
 
 struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
 {
@@ -2776,5 +2633,5 @@ EXPORT_SYMBOL(kern_unmount);
 
 bool our_mnt(struct vfsmount *mnt)
 {
-        return check_mnt(mnt);
+        return check_mnt(real_mount(mnt));
 }
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 9c51f621e901..aeed93a6bde0 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -30,15 +30,15 @@ static void ncp_do_readdir(struct file *, void *, filldir_t,
 
 static int ncp_readdir(struct file *, void *, filldir_t);
 
-static int ncp_create(struct inode *, struct dentry *, int, struct nameidata *);
+static int ncp_create(struct inode *, struct dentry *, umode_t, struct nameidata *);
 static struct dentry *ncp_lookup(struct inode *, struct dentry *, struct nameidata *);
 static int ncp_unlink(struct inode *, struct dentry *);
-static int ncp_mkdir(struct inode *, struct dentry *, int);
+static int ncp_mkdir(struct inode *, struct dentry *, umode_t);
 static int ncp_rmdir(struct inode *, struct dentry *);
 static int ncp_rename(struct inode *, struct dentry *,
                       struct inode *, struct dentry *);
 static int ncp_mknod(struct inode * dir, struct dentry *dentry,
-                     int mode, dev_t rdev);
+                     umode_t mode, dev_t rdev);
 #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
 extern int ncp_symlink(struct inode *, struct dentry *, const char *);
 #else
@@ -919,7 +919,7 @@ out_close:
         goto out;
 }
 
-int ncp_create_new(struct inode *dir, struct dentry *dentry, int mode,
+int ncp_create_new(struct inode *dir, struct dentry *dentry, umode_t mode,
                    dev_t rdev, __le32 attributes)
 {
         struct ncp_server *server = NCP_SERVER(dir);
@@ -928,7 +928,7 @@ int ncp_create_new(struct inode *dir, struct dentry *dentry, int mode,
         int opmode;
         __u8 __name[NCP_MAXPATHLEN + 1];
         
-        PPRINTK("ncp_create_new: creating %s/%s, mode=%x\n",
+        PPRINTK("ncp_create_new: creating %s/%s, mode=%hx\n",
                 dentry->d_parent->d_name.name, dentry->d_name.name, mode);
 
         ncp_age_dentry(server, dentry);
@@ -979,13 +979,13 @@ out:
         return error;
 }
 
-static int ncp_create(struct inode *dir, struct dentry *dentry, int mode,
+static int ncp_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         return ncp_create_new(dir, dentry, mode, 0, 0);
 }
 
-static int ncp_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int ncp_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct ncp_entry_info finfo;
         struct ncp_server *server = NCP_SERVER(dir);
@@ -1201,12 +1201,12 @@ out:
 }
 
 static int ncp_mknod(struct inode * dir, struct dentry *dentry,
-                     int mode, dev_t rdev)
+                     umode_t mode, dev_t rdev)
 {
         if (!new_valid_dev(rdev))
                 return -EINVAL;
         if (ncp_is_nfs_extras(NCP_SERVER(dir), NCP_FINFO(dir)->volNumber)) {
-                DPRINTK(KERN_DEBUG "ncp_mknod: mode = 0%o\n", mode);
+                DPRINTK(KERN_DEBUG "ncp_mknod: mode = 0%ho\n", mode);
                 return ncp_create_new(dir, dentry, mode, rdev, 0);
         }
         return -EPERM; /* Strange, but true */
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index cbd1a61c110a..3d1e34f8a68e 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -44,7 +44,7 @@
 static void ncp_evict_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 int  ncp_show_options(struct seq_file *, struct dentry *);
 
 static struct kmem_cache * ncp_inode_cachep;
 
@@ -60,7 +60,6 @@ static struct inode *ncp_alloc_inode(struct super_block *sb)
 static void ncp_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
 }
 
@@ -323,9 +322,9 @@ static void ncp_stop_tasks(struct ncp_server *server) {
                 flush_work_sync(&server->timeout_tq);
 }
 
-static int  ncp_show_options(struct seq_file *seq, struct vfsmount *mnt)
+static int  ncp_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct ncp_server *server = NCP_SBP(mnt->mnt_sb);
+        struct ncp_server *server = NCP_SBP(root->d_sb);
         unsigned int tmp;
 
         if (server->m.uid != 0)
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index 790e92a9ec63..6958adfaff08 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -901,7 +901,7 @@ long ncp_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
         ret = __ncp_ioctl(inode, cmd, arg);
 outDropWrite:
         if (need_drop_write)
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
 out:
         return ret;
 }
diff --git a/fs/ncpfs/ncplib_kernel.h b/fs/ncpfs/ncplib_kernel.h
index 09881e6aa5ad..32c06587351a 100644
--- a/fs/ncpfs/ncplib_kernel.h
+++ b/fs/ncpfs/ncplib_kernel.h
@@ -114,7 +114,7 @@ int ncp_dirhandle_alloc(struct ncp_server *, __u8 vol, __le32 dirent, __u8 *dirh
 int ncp_dirhandle_free(struct ncp_server *, __u8 dirhandle);
 
 int ncp_create_new(struct inode *dir, struct dentry *dentry,
-                          int mode, dev_t rdev, __le32 attributes);
+                          umode_t mode, dev_t rdev, __le32 attributes);
 
 static inline int ncp_is_nfs_extras(struct ncp_server* server, unsigned int volnum) {
 #ifdef CONFIG_NCPFS_NFS_NS
diff --git a/fs/ncpfs/symlink.c b/fs/ncpfs/symlink.c
index 661f861d80c6..52439ddc8de0 100644
--- a/fs/ncpfs/symlink.c
+++ b/fs/ncpfs/symlink.c
@@ -108,7 +108,7 @@ int ncp_symlink(struct inode *dir, struct dentry *dentry, const char *symname) {
         char *rawlink;
         int length, err, i, outlen;
         int kludge;
-        int mode;
+        umode_t mode;
         __le32 attr;
         unsigned int hdr;
 
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index ac2899098147..fd9a872fada0 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -47,13 +47,13 @@ static int nfs_opendir(struct inode *, struct file *);
 static int nfs_closedir(struct inode *, struct file *);
 static int nfs_readdir(struct file *, void *, filldir_t);
 static struct dentry *nfs_lookup(struct inode *, struct dentry *, struct nameidata *);
-static int nfs_create(struct inode *, struct dentry *, int, struct nameidata *);
-static int nfs_mkdir(struct inode *, struct dentry *, int);
+static int nfs_create(struct inode *, struct dentry *, umode_t, struct nameidata *);
+static int nfs_mkdir(struct inode *, struct dentry *, umode_t);
 static int nfs_rmdir(struct inode *, struct dentry *);
 static int nfs_unlink(struct inode *, struct dentry *);
 static int nfs_symlink(struct inode *, struct dentry *, const char *);
 static int nfs_link(struct dentry *, struct inode *, struct dentry *);
-static int nfs_mknod(struct inode *, struct dentry *, int, dev_t);
+static int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
 static int nfs_rename(struct inode *, struct dentry *,
                       struct inode *, struct dentry *);
 static int nfs_fsync_dir(struct file *, loff_t, loff_t, int);
@@ -112,7 +112,7 @@ const struct inode_operations nfs3_dir_inode_operations = {
 #ifdef CONFIG_NFS_V4
 
 static struct dentry *nfs_atomic_lookup(struct inode *, struct dentry *, struct nameidata *);
-static int nfs_open_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd);
+static int nfs_open_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd);
 const struct inode_operations nfs4_dir_inode_operations = {
         .create         = nfs_open_create,
         .lookup         = nfs_atomic_lookup,
@@ -1368,18 +1368,7 @@ static fmode_t flags_to_mode(int flags)
 
 static struct nfs_open_context *create_nfs_open_context(struct dentry *dentry, int open_flags)
 {
-        struct nfs_open_context *ctx;
-        struct rpc_cred *cred;
-        fmode_t fmode = flags_to_mode(open_flags);
-
-        cred = rpc_lookup_cred();
-        if (IS_ERR(cred))
-                return ERR_CAST(cred);
-        ctx = alloc_nfs_open_context(dentry, cred, fmode);
-        put_rpccred(cred);
-        if (ctx == NULL)
-                return ERR_PTR(-ENOMEM);
-        return ctx;
+        return alloc_nfs_open_context(dentry, flags_to_mode(open_flags));
 }
 
 static int do_open(struct inode *inode, struct file *filp)
@@ -1584,8 +1573,8 @@ no_open:
         return nfs_lookup_revalidate(dentry, nd);
 }
 
-static int nfs_open_create(struct inode *dir, struct dentry *dentry, int mode,
-                struct nameidata *nd)
+static int nfs_open_create(struct inode *dir, struct dentry *dentry,
+                umode_t mode, struct nameidata *nd)
 {
         struct nfs_open_context *ctx = NULL;
         struct iattr attr;
@@ -1675,8 +1664,8 @@ out_error:
  * that the operation succeeded on the server, but an error in the
  * reply path made it appear to have failed.
  */
-static int nfs_create(struct inode *dir, struct dentry *dentry, int mode,
-                struct nameidata *nd)
+static int nfs_create(struct inode *dir, struct dentry *dentry,
+                umode_t mode, struct nameidata *nd)
 {
         struct iattr attr;
         int error;
@@ -1704,7 +1693,7 @@ out_err:
  * See comments for nfs_proc_create regarding failed operations.
  */
 static int
-nfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
+nfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
         struct iattr attr;
         int status;
@@ -1730,7 +1719,7 @@ out_err:
 /*
  * See comments for nfs_proc_create regarding failed operations.
  */
-static int nfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int nfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct iattr attr;
         int error;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 50a15fa8cf98..6f00086e340f 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -629,23 +629,28 @@ void nfs_close_context(struct nfs_open_context *ctx, int is_sync)
         nfs_revalidate_inode(server, inode);
 }
 
-struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, struct rpc_cred *cred, fmode_t f_mode)
+struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode)
 {
         struct nfs_open_context *ctx;
+        struct rpc_cred *cred = rpc_lookup_cred();
+        if (IS_ERR(cred))
+                return ERR_CAST(cred);
 
         ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
-        if (ctx != NULL) {
-                nfs_sb_active(dentry->d_sb);
-                ctx->dentry = dget(dentry);
-                ctx->cred = get_rpccred(cred);
-                ctx->state = NULL;
-                ctx->mode = f_mode;
-                ctx->flags = 0;
-                ctx->error = 0;
-                nfs_init_lock_context(&ctx->lock_context);
-                ctx->lock_context.open_context = ctx;
-                INIT_LIST_HEAD(&ctx->list);
+        if (!ctx) {
+                put_rpccred(cred);
+                return ERR_PTR(-ENOMEM);
         }
+        nfs_sb_active(dentry->d_sb);
+        ctx->dentry = dget(dentry);
+        ctx->cred = cred;
+        ctx->state = NULL;
+        ctx->mode = f_mode;
+        ctx->flags = 0;
+        ctx->error = 0;
+        nfs_init_lock_context(&ctx->lock_context);
+        ctx->lock_context.open_context = ctx;
+        INIT_LIST_HEAD(&ctx->list);
         return ctx;
 }
 
@@ -738,15 +743,10 @@ static void nfs_file_clear_open_context(struct file *filp)
 int nfs_open(struct inode *inode, struct file *filp)
 {
         struct nfs_open_context *ctx;
-        struct rpc_cred *cred;
 
-        cred = rpc_lookup_cred();
-        if (IS_ERR(cred))
-                return PTR_ERR(cred);
-        ctx = alloc_nfs_open_context(filp->f_path.dentry, cred, filp->f_mode);
-        put_rpccred(cred);
-        if (ctx == NULL)
-                return -ENOMEM;
+        ctx = alloc_nfs_open_context(filp->f_path.dentry, filp->f_mode);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
         nfs_file_set_open_context(filp, ctx);
         put_nfs_open_context(ctx);
         nfs_fscache_set_inode_cookie(inode, filp);
@@ -1464,7 +1464,6 @@ struct inode *nfs_alloc_inode(struct super_block *sb)
 static void nfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(nfs_inode_cachep, NFS_I(inode));
 }
 
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 134777406ee3..e463967aafb8 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -41,7 +41,6 @@
 #include <linux/lockd/bind.h>
 #include <linux/seq_file.h>
 #include <linux/mount.h>
-#include <linux/mnt_namespace.h>
 #include <linux/namei.h>
 #include <linux/nfs_idmap.h>
 #include <linux/vfs.h>
@@ -263,10 +262,10 @@ static match_table_t nfs_local_lock_tokens = {
 
 static void nfs_umount_begin(struct super_block *);
 static int  nfs_statfs(struct dentry *, struct kstatfs *);
-static int  nfs_show_options(struct seq_file *, struct vfsmount *);
-static int  nfs_show_devname(struct seq_file *, struct vfsmount *);
-static int  nfs_show_path(struct seq_file *, struct vfsmount *);
-static int  nfs_show_stats(struct seq_file *, struct vfsmount *);
+static int  nfs_show_options(struct seq_file *, struct dentry *);
+static int  nfs_show_devname(struct seq_file *, struct dentry *);
+static int  nfs_show_path(struct seq_file *, struct dentry *);
+static int  nfs_show_stats(struct seq_file *, struct dentry *);
 static struct dentry *nfs_fs_mount(struct file_system_type *,
                 int, const char *, void *);
 static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type,
@@ -721,9 +720,9 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
 /*
  * Describe the mount options on this VFS mountpoint
  */
-static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_options(struct seq_file *m, struct dentry *root)
 {
-        struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+        struct nfs_server *nfss = NFS_SB(root->d_sb);
 
         nfs_show_mount_options(m, nfss, 0);
 
@@ -761,14 +760,14 @@ static void show_pnfs(struct seq_file *m, struct nfs_server *server) {}
 #endif
 #endif
 
-static int nfs_show_devname(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_devname(struct seq_file *m, struct dentry *root)
 {
         char *page = (char *) __get_free_page(GFP_KERNEL);
         char *devname, *dummy;
         int err = 0;
         if (!page)
                 return -ENOMEM;
-        devname = nfs_path(&dummy, mnt->mnt_root, page, PAGE_SIZE);
+        devname = nfs_path(&dummy, root, page, PAGE_SIZE);
         if (IS_ERR(devname))
                 err = PTR_ERR(devname);
         else
@@ -777,7 +776,7 @@ static int nfs_show_devname(struct seq_file *m, struct vfsmount *mnt)
         return err;
 }
 
-static int nfs_show_path(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_path(struct seq_file *m, struct dentry *dentry)
 {
         seq_puts(m, "/");
         return 0;
@@ -786,10 +785,10 @@ static int nfs_show_path(struct seq_file *m, struct vfsmount *mnt)
 /*
  * Present statistical information for this VFS mountpoint
  */
-static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_stats(struct seq_file *m, struct dentry *root)
 {
         int i, cpu;
-        struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+        struct nfs_server *nfss = NFS_SB(root->d_sb);
         struct rpc_auth *auth = nfss->client->cl_auth;
         struct nfs_iostats totals = { };
 
@@ -799,10 +798,10 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
          * Display all mount option settings
          */
         seq_printf(m, "\n\topts:\t");
-        seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? "ro" : "rw");
-        seq_puts(m, mnt->mnt_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : "");
-        seq_puts(m, mnt->mnt_sb->s_flags & MS_NOATIME ? ",noatime" : "");
-        seq_puts(m, mnt->mnt_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");
+        seq_puts(m, root->d_sb->s_flags & MS_RDONLY ? "ro" : "rw");
+        seq_puts(m, root->d_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : "");
+        seq_puts(m, root->d_sb->s_flags & MS_NOATIME ? ",noatime" : "");
+        seq_puts(m, root->d_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");
         nfs_show_mount_options(m, nfss, 1);
 
         seq_printf(m, "\n\tage:\t%lu", (jiffies - nfss->mount_time) / HZ);
@@ -2788,11 +2787,15 @@ static struct dentry *nfs_follow_remote_path(struct vfsmount *root_mnt,
                 const char *export_path)
 {
         struct dentry *dentry;
-        int ret = nfs_referral_loop_protect();
+        int err;
 
-        if (ret) {
+        if (IS_ERR(root_mnt))
+                return ERR_CAST(root_mnt);
+
+        err = nfs_referral_loop_protect();
+        if (err) {
                 mntput(root_mnt);
-                return ERR_PTR(ret);
+                return ERR_PTR(err);
         }
 
         dentry = mount_subtree(root_mnt, export_path);
@@ -2816,9 +2819,7 @@ static struct dentry *nfs4_try_mount(int flags, const char *dev_name,
                         data->nfs_server.hostname);
         data->nfs_server.export_path = export_path;
 
-        res = ERR_CAST(root_mnt);
-        if (!IS_ERR(root_mnt))
-                res = nfs_follow_remote_path(root_mnt, export_path);
+        res = nfs_follow_remote_path(root_mnt, export_path);
 
         dfprintk(MOUNT, "<-- nfs4_try_mount() = %ld%s\n",
                         IS_ERR(res) ? PTR_ERR(res) : 0,
@@ -3079,9 +3080,7 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
                         flags, data, data->hostname);
         data->mnt_path = export_path;
 
-        res = ERR_CAST(root_mnt);
-        if (!IS_ERR(root_mnt))
-                res = nfs_follow_remote_path(root_mnt, export_path);
+        res = nfs_follow_remote_path(root_mnt, export_path);
         dprintk("<-- nfs4_referral_mount() = %ld%s\n",
                         IS_ERR(res) ? PTR_ERR(res) : 0,
                         IS_ERR(res) ? " [error]" : "");
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index fa383361bc61..c5e28ed8bca0 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -838,7 +838,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
                         return status;
                 }
         }
-        status = mnt_want_write(cstate->current_fh.fh_export->ex_path.mnt);
+        status = fh_want_write(&cstate->current_fh);
         if (status)
                 return status;
         status = nfs_ok;
@@ -856,7 +856,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
         status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr,
                                 0, (time_t)0);
 out:
-        mnt_drop_write(cstate->current_fh.fh_export->ex_path.mnt);
+        fh_drop_write(&cstate->current_fh);
         return status;
 }
 
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index ed083b9a731b..80a0be9ed008 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -147,11 +147,11 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
         status = -EEXIST;
         if (dentry->d_inode)
                 goto out_put;
-        status = mnt_want_write(rec_file->f_path.mnt);
+        status = mnt_want_write_file(rec_file);
         if (status)
                 goto out_put;
         status = vfs_mkdir(dir->d_inode, dentry, S_IRWXU);
-        mnt_drop_write(rec_file->f_path.mnt);
+        mnt_drop_write_file(rec_file);
 out_put:
         dput(dentry);
 out_unlock:
@@ -268,7 +268,7 @@ nfsd4_remove_clid_dir(struct nfs4_client *clp)
         if (!rec_file || !clp->cl_firststate)
                 return;
 
-        status = mnt_want_write(rec_file->f_path.mnt);
+        status = mnt_want_write_file(rec_file);
         if (status)
                 goto out;
         clp->cl_firststate = 0;
@@ -281,7 +281,7 @@ nfsd4_remove_clid_dir(struct nfs4_client *clp)
         nfs4_reset_creds(original_cred);
         if (status == 0)
                 vfs_fsync(rec_file, 0);
-        mnt_drop_write(rec_file->f_path.mnt);
+        mnt_drop_write_file(rec_file);
 out:
         if (status)
                 printk("NFSD: Failed to remove expired client state directory"
@@ -311,13 +311,13 @@ nfsd4_recdir_purge_old(void) {
 
         if (!rec_file)
                 return;
-        status = mnt_want_write(rec_file->f_path.mnt);
+        status = mnt_want_write_file(rec_file);
         if (status)
                 goto out;
         status = nfsd4_list_rec_dir(purge_old);
         if (status == 0)
                 vfs_fsync(rec_file, 0);
-        mnt_drop_write(rec_file->f_path.mnt);
+        mnt_drop_write_file(rec_file);
 out:
         if (status)
                 printk("nfsd4: failed to purge old clients from recovery"
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index c45a2ea4a090..bb4a11d58a5a 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -272,7 +272,7 @@ static ssize_t write_unlock_fs(struct file *file, char *buf, size_t size)
          * 2.  Is that directory a mount point, or
          * 3.  Is that directory the root of an exported file system?
          */
-        error = nlmsvc_unlock_all_by_sb(path.mnt->mnt_sb);
+        error = nlmsvc_unlock_all_by_sb(path.dentry->d_sb);
 
         path_put(&path);
         return error;
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index c763de5c1157..68454e75fce9 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -59,7 +59,7 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
  * the write call).
  */
 static inline __be32
-nfsd_mode_check(struct svc_rqst *rqstp, umode_t mode, int requested)
+nfsd_mode_check(struct svc_rqst *rqstp, umode_t mode, umode_t requested)
 {
         mode &= S_IFMT;
 
@@ -293,7 +293,7 @@ out:
  * include/linux/nfsd/nfsd.h.
  */
 __be32
-fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
+fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access)
 {
         struct svc_export *exp;
         struct dentry   *dentry;
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index c16f8d8331b5..e5e6707ba687 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -102,7 +102,7 @@ extern char * SVCFH_fmt(struct svc_fh *fhp);
 /*
  * Function prototypes
  */
-__be32  fh_verify(struct svc_rqst *, struct svc_fh *, int, int);
+__be32  fh_verify(struct svc_rqst *, struct svc_fh *, umode_t, int);
 __be32  fh_compose(struct svc_fh *, struct svc_export *, struct dentry *, struct svc_fh *);
 __be32  fh_update(struct svc_fh *);
 void    fh_put(struct svc_fh *);
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 7a2e442623c8..d25a723b68ad 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -307,7 +307,7 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
         struct dentry   *dentry;
         struct inode    *inode;
         int             accmode = NFSD_MAY_SATTR;
-        int             ftype = 0;
+        umode_t         ftype = 0;
         __be32          err;
         int             host_err;
         int             size_change = 0;
@@ -730,7 +730,7 @@ static int nfsd_open_break_lease(struct inode *inode, int access)
  * N.B. After this call fhp needs an fh_put
  */
 __be32
-nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
+nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
                         int access, struct file **filp)
 {
         struct dentry   *dentry;
@@ -1300,7 +1300,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
                 goto out;
         }
 
-        host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
+        host_err = fh_want_write(fhp);
         if (host_err)
                 goto out_nfserr;
 
@@ -1325,7 +1325,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
                 break;
         }
         if (host_err < 0) {
-                mnt_drop_write(fhp->fh_export->ex_path.mnt);
+                fh_drop_write(fhp);
                 goto out_nfserr;
         }
 
@@ -1339,7 +1339,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
         err2 = nfserrno(commit_metadata(fhp));
         if (err2)
                 err = err2;
-        mnt_drop_write(fhp->fh_export->ex_path.mnt);
+        fh_drop_write(fhp);
         /*
          * Update the file handle to get the new inode info.
          */
@@ -1430,7 +1430,7 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
                 v_atime = verifier[1]&0x7fffffff;
         }
         
-        host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
+        host_err = fh_want_write(fhp);
         if (host_err)
                 goto out_nfserr;
         if (dchild->d_inode) {
@@ -1469,13 +1469,13 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
                 case NFS3_CREATE_GUARDED:
                         err = nfserr_exist;
                 }
-                mnt_drop_write(fhp->fh_export->ex_path.mnt);
+                fh_drop_write(fhp);
                 goto out;
         }
 
         host_err = vfs_create(dirp, dchild, iap->ia_mode, NULL);
         if (host_err < 0) {
-                mnt_drop_write(fhp->fh_export->ex_path.mnt);
+                fh_drop_write(fhp);
                 goto out_nfserr;
         }
         if (created)
@@ -1503,7 +1503,7 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
         if (!err)
                 err = nfserrno(commit_metadata(fhp));
 
-        mnt_drop_write(fhp->fh_export->ex_path.mnt);
+        fh_drop_write(fhp);
         /*
          * Update the filehandle to get the new inode info.
          */
@@ -1600,7 +1600,7 @@ nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *fhp,
         if (IS_ERR(dnew))
                 goto out_nfserr;
 
-        host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
+        host_err = fh_want_write(fhp);
         if (host_err)
                 goto out_nfserr;
 
@@ -1621,7 +1621,7 @@ nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *fhp,
                 err = nfserrno(commit_metadata(fhp));
         fh_unlock(fhp);
 
-        mnt_drop_write(fhp->fh_export->ex_path.mnt);
+        fh_drop_write(fhp);
 
         cerr = fh_compose(resfhp, fhp->fh_export, dnew, fhp);
         dput(dnew);
@@ -1674,7 +1674,7 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
 
         dold = tfhp->fh_dentry;
 
-        host_err = mnt_want_write(tfhp->fh_export->ex_path.mnt);
+        host_err = fh_want_write(tfhp);
         if (host_err) {
                 err = nfserrno(host_err);
                 goto out_dput;
@@ -1699,7 +1699,7 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
                         err = nfserrno(host_err);
         }
 out_drop_write:
-        mnt_drop_write(tfhp->fh_export->ex_path.mnt);
+        fh_drop_write(tfhp);
 out_dput:
         dput(dnew);
 out_unlock:
@@ -1776,7 +1776,7 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
         host_err = -EXDEV;
         if (ffhp->fh_export->ex_path.mnt != tfhp->fh_export->ex_path.mnt)
                 goto out_dput_new;
-        host_err = mnt_want_write(ffhp->fh_export->ex_path.mnt);
+        host_err = fh_want_write(ffhp);
         if (host_err)
                 goto out_dput_new;
 
@@ -1795,7 +1795,7 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
                         host_err = commit_metadata(ffhp);
         }
 out_drop_write:
-        mnt_drop_write(ffhp->fh_export->ex_path.mnt);
+        fh_drop_write(ffhp);
  out_dput_new:
         dput(ndentry);
  out_dput_old:
@@ -1854,7 +1854,7 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
         if (!type)
                 type = rdentry->d_inode->i_mode & S_IFMT;
 
-        host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
+        host_err = fh_want_write(fhp);
         if (host_err)
                 goto out_put;
 
@@ -1868,7 +1868,7 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
         if (!host_err)
                 host_err = commit_metadata(fhp);
 out_drop_write:
-        mnt_drop_write(fhp->fh_export->ex_path.mnt);
+        fh_drop_write(fhp);
 out_put:
         dput(rdentry);
 
@@ -2270,7 +2270,7 @@ nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
         } else
                 size = 0;
 
-        error = mnt_want_write(fhp->fh_export->ex_path.mnt);
+        error = fh_want_write(fhp);
         if (error)
                 goto getout;
         if (size)
@@ -2284,7 +2284,7 @@ nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
                                 error = 0;
                 }
         }
-        mnt_drop_write(fhp->fh_export->ex_path.mnt);
+        fh_drop_write(fhp);
 
 getout:
         kfree(value);
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index 3f54ad03bb2b..1dcd238e11a0 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -66,7 +66,7 @@ __be32		do_nfsd_create(struct svc_rqst *, struct svc_fh *,
 __be32          nfsd_commit(struct svc_rqst *, struct svc_fh *,
                                 loff_t, unsigned long);
 #endif /* CONFIG_NFSD_V3 */
-__be32          nfsd_open(struct svc_rqst *, struct svc_fh *, int,
+__be32          nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t,
                                 int, struct file **);
 void            nfsd_close(struct file *);
 __be32          nfsd_read(struct svc_rqst *, struct svc_fh *,
@@ -106,4 +106,14 @@ struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int);
 int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
 #endif
 
+static inline int fh_want_write(struct svc_fh *fh)
+{
+        return mnt_want_write(fh->fh_export->ex_path.mnt);
+}
+
+static inline void fh_drop_write(struct svc_fh *fh)
+{
+        mnt_drop_write(fh->fh_export->ex_path.mnt);
+}
+
 #endif /* LINUX_NFSD_VFS_H */
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 3a1923943b14..ca35b3a46d17 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -251,7 +251,7 @@ nilfs_type_by_mode[S_IFMT >> S_SHIFT] = {
 
 static void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode *inode)
 {
-        mode_t mode = inode->i_mode;
+        umode_t mode = inode->i_mode;
 
         de->file_type = nilfs_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
 }
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index b50ffb72e5b3..8f7b95ac1f7e 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -291,7 +291,7 @@ const struct address_space_operations nilfs_aops = {
         .is_partially_uptodate  = block_is_partially_uptodate,
 };
 
-struct inode *nilfs_new_inode(struct inode *dir, int mode)
+struct inode *nilfs_new_inode(struct inode *dir, umode_t mode)
 {
         struct super_block *sb = dir->i_sb;
         struct the_nilfs *nilfs = sb->s_fs_info;
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index ac258beeda3c..886649627c3d 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -27,7 +27,7 @@
 #include <linux/uaccess.h>      /* copy_from_user(), copy_to_user() */
 #include <linux/vmalloc.h>
 #include <linux/compat.h>       /* compat_ptr() */
-#include <linux/mount.h>        /* mnt_want_write(), mnt_drop_write() */
+#include <linux/mount.h>        /* mnt_want_write_file(), mnt_drop_write_file() */
 #include <linux/buffer_head.h>
 #include <linux/nilfs2_fs.h>
 #include "nilfs.h"
@@ -119,7 +119,7 @@ static int nilfs_ioctl_setflags(struct inode *inode, struct file *filp,
         if (get_user(flags, (int __user *)argp))
                 return -EFAULT;
 
-        ret = mnt_want_write(filp->f_path.mnt);
+        ret = mnt_want_write_file(filp);
         if (ret)
                 return ret;
 
@@ -154,7 +154,7 @@ static int nilfs_ioctl_setflags(struct inode *inode, struct file *filp,
         ret = nilfs_transaction_commit(inode->i_sb);
 out:
         mutex_unlock(&inode->i_mutex);
-        mnt_drop_write(filp->f_path.mnt);
+        mnt_drop_write_file(filp);
         return ret;
 }
 
@@ -174,7 +174,7 @@ static int nilfs_ioctl_change_cpmode(struct inode *inode, struct file *filp,
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        ret = mnt_want_write(filp->f_path.mnt);
+        ret = mnt_want_write_file(filp);
         if (ret)
                 return ret;
 
@@ -194,7 +194,7 @@ static int nilfs_ioctl_change_cpmode(struct inode *inode, struct file *filp,
 
         up_read(&inode->i_sb->s_umount);
 out:
-        mnt_drop_write(filp->f_path.mnt);
+        mnt_drop_write_file(filp);
         return ret;
 }
 
@@ -210,7 +210,7 @@ nilfs_ioctl_delete_checkpoint(struct inode *inode, struct file *filp,
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        ret = mnt_want_write(filp->f_path.mnt);
+        ret = mnt_want_write_file(filp);
         if (ret)
                 return ret;
 
@@ -225,7 +225,7 @@ nilfs_ioctl_delete_checkpoint(struct inode *inode, struct file *filp,
         else
                 nilfs_transaction_commit(inode->i_sb); /* never fails */
 out:
-        mnt_drop_write(filp->f_path.mnt);
+        mnt_drop_write_file(filp);
         return ret;
 }
 
@@ -591,7 +591,7 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp,
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        ret = mnt_want_write(filp->f_path.mnt);
+        ret = mnt_want_write_file(filp);
         if (ret)
                 return ret;
 
@@ -675,7 +675,7 @@ out_free:
                 vfree(kbufs[n]);
         kfree(kbufs[4]);
 out:
-        mnt_drop_write(filp->f_path.mnt);
+        mnt_drop_write_file(filp);
         return ret;
 }
 
@@ -710,7 +710,7 @@ static int nilfs_ioctl_resize(struct inode *inode, struct file *filp,
         if (!capable(CAP_SYS_ADMIN))
                 goto out;
 
-        ret = mnt_want_write(filp->f_path.mnt);
+        ret = mnt_want_write_file(filp);
         if (ret)
                 goto out;
 
@@ -721,7 +721,7 @@ static int nilfs_ioctl_resize(struct inode *inode, struct file *filp,
         ret = nilfs_resize_fs(inode->i_sb, newsize);
 
 out_drop_write:
-        mnt_drop_write(filp->f_path.mnt);
+        mnt_drop_write_file(filp);
 out:
         return ret;
 }
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index 768982de10e4..1cd3f624dffc 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -84,7 +84,7 @@ nilfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
  * If the create succeeds, we fill in the inode information
  * with d_instantiate().
  */
-static int nilfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int nilfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                         struct nameidata *nd)
 {
         struct inode *inode;
@@ -112,7 +112,7 @@ static int nilfs_create(struct inode *dir, struct dentry *dentry, int mode,
 }
 
 static int
-nilfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
+nilfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
         struct inode *inode;
         struct nilfs_transaction_info ti;
@@ -213,7 +213,7 @@ static int nilfs_link(struct dentry *old_dentry, struct inode *dir,
         return err;
 }
 
-static int nilfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int nilfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode *inode;
         struct nilfs_transaction_info ti;
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 3777d138f895..250add84da76 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -246,7 +246,7 @@ int nilfs_ioctl_prepare_clean_segments(struct the_nilfs *, struct nilfs_argv *,
 /* inode.c */
 void nilfs_inode_add_blocks(struct inode *inode, int n);
 void nilfs_inode_sub_blocks(struct inode *inode, int n);
-extern struct inode *nilfs_new_inode(struct inode *, int);
+extern struct inode *nilfs_new_inode(struct inode *, umode_t);
 extern void nilfs_free_inode(struct inode *);
 extern int nilfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 extern void nilfs_set_inode_flags(struct inode *);
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 8351c44a7320..08e3d4f9df18 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -175,8 +175,6 @@ static void nilfs_i_callback(struct rcu_head *head)
         struct inode *inode = container_of(head, struct inode, i_rcu);
         struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
 
-        INIT_LIST_HEAD(&inode->i_dentry);
-
         if (mdi) {
                 kfree(mdi->mi_bgl); /* kfree(NULL) is safe */
                 kfree(mdi);
@@ -650,11 +648,11 @@ static int nilfs_statfs(struct dentry *dentry, struct kstatfs *buf)
         return 0;
 }
 
-static int nilfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int nilfs_show_options(struct seq_file *seq, struct dentry *dentry)
 {
-        struct super_block *sb = vfs->mnt_sb;
+        struct super_block *sb = dentry->d_sb;
         struct the_nilfs *nilfs = sb->s_fs_info;
-        struct nilfs_root *root = NILFS_I(vfs->mnt_root->d_inode)->i_root;
+        struct nilfs_root *root = NILFS_I(dentry->d_inode)->i_root;
 
         if (!nilfs_test_opt(nilfs, BARRIER))
                 seq_puts(seq, ",nobarrier");
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 9fde1c00a296..3568c8a8b138 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -16,6 +16,8 @@
 
 #include <asm/ioctls.h>
 
+#include "../../mount.h"
+
 #define FANOTIFY_DEFAULT_MAX_EVENTS     16384
 #define FANOTIFY_DEFAULT_MAX_MARKS      8192
 #define FANOTIFY_DEFAULT_MAX_LISTENERS  128
@@ -546,7 +548,7 @@ static int fanotify_remove_vfsmount_mark(struct fsnotify_group *group,
 
         removed = fanotify_mark_remove_from_mask(fsn_mark, mask, flags);
         fsnotify_put_mark(fsn_mark);
-        if (removed & mnt->mnt_fsnotify_mask)
+        if (removed & real_mount(mnt)->mnt_fsnotify_mask)
                 fsnotify_recalc_vfsmount_mask(mnt);
 
         return 0;
@@ -623,7 +625,7 @@ static int fanotify_add_vfsmount_mark(struct fsnotify_group *group,
         }
         added = fanotify_mark_add_to_mask(fsn_mark, mask, flags);
 
-        if (added & ~mnt->mnt_fsnotify_mask)
+        if (added & ~real_mount(mnt)->mnt_fsnotify_mask)
                 fsnotify_recalc_vfsmount_mask(mnt);
 err:
         fsnotify_put_mark(fsn_mark);
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 79b47cbb5cd8..ccb14d3fc0de 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -26,6 +26,7 @@
 
 #include <linux/fsnotify_backend.h>
 #include "fsnotify.h"
+#include "../mount.h"
 
 /*
  * Clear all of the marks on an inode when it is being evicted from core
@@ -205,13 +206,13 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is,
         struct fsnotify_mark *inode_mark = NULL, *vfsmount_mark = NULL;
         struct fsnotify_group *inode_group, *vfsmount_group;
         struct fsnotify_event *event = NULL;
-        struct vfsmount *mnt;
+        struct mount *mnt;
         int idx, ret = 0;
         /* global tests shouldn't care about events on child only the specific event */
         __u32 test_mask = (mask & ~FS_EVENT_ON_CHILD);
 
         if (data_is == FSNOTIFY_EVENT_PATH)
-                mnt = ((struct path *)data)->mnt;
+                mnt = real_mount(((struct path *)data)->mnt);
         else
                 mnt = NULL;
 
@@ -262,11 +263,11 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is,
                         /* we didn't use the vfsmount_mark */
                         vfsmount_group = NULL;
                 } else if (vfsmount_group > inode_group) {
-                        ret = send_to_group(to_tell, mnt, NULL, vfsmount_mark, mask, data,
+                        ret = send_to_group(to_tell, &mnt->mnt, NULL, vfsmount_mark, mask, data,
                                             data_is, cookie, file_name, &event);
                         inode_group = NULL;
                 } else {
-                        ret = send_to_group(to_tell, mnt, inode_mark, vfsmount_mark,
+                        ret = send_to_group(to_tell, &mnt->mnt, inode_mark, vfsmount_mark,
                                             mask, data, data_is, cookie, file_name,
                                             &event);
                 }
diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
index 778fe6cae3b0..b7b4b0e8554f 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -28,15 +28,17 @@
 
 #include <linux/fsnotify_backend.h>
 #include "fsnotify.h"
+#include "../mount.h"
 
 void fsnotify_clear_marks_by_mount(struct vfsmount *mnt)
 {
         struct fsnotify_mark *mark, *lmark;
         struct hlist_node *pos, *n;
+        struct mount *m = real_mount(mnt);
         LIST_HEAD(free_list);
 
         spin_lock(&mnt->mnt_root->d_lock);
-        hlist_for_each_entry_safe(mark, pos, n, &mnt->mnt_fsnotify_marks, m.m_list) {
+        hlist_for_each_entry_safe(mark, pos, n, &m->mnt_fsnotify_marks, m.m_list) {
                 list_add(&mark->m.free_m_list, &free_list);
                 hlist_del_init_rcu(&mark->m.m_list);
                 fsnotify_get_mark(mark);
@@ -59,15 +61,16 @@ void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group)
  */
 static void fsnotify_recalc_vfsmount_mask_locked(struct vfsmount *mnt)
 {
+        struct mount *m = real_mount(mnt);
         struct fsnotify_mark *mark;
         struct hlist_node *pos;
         __u32 new_mask = 0;
 
         assert_spin_locked(&mnt->mnt_root->d_lock);
 
-        hlist_for_each_entry(mark, pos, &mnt->mnt_fsnotify_marks, m.m_list)
+        hlist_for_each_entry(mark, pos, &m->mnt_fsnotify_marks, m.m_list)
                 new_mask |= mark->mask;
-        mnt->mnt_fsnotify_mask = new_mask;
+        m->mnt_fsnotify_mask = new_mask;
 }
 
 /*
@@ -101,12 +104,13 @@ void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark)
 static struct fsnotify_mark *fsnotify_find_vfsmount_mark_locked(struct fsnotify_group *group,
                                                                 struct vfsmount *mnt)
 {
+        struct mount *m = real_mount(mnt);
         struct fsnotify_mark *mark;
         struct hlist_node *pos;
 
         assert_spin_locked(&mnt->mnt_root->d_lock);
 
-        hlist_for_each_entry(mark, pos, &mnt->mnt_fsnotify_marks, m.m_list) {
+        hlist_for_each_entry(mark, pos, &m->mnt_fsnotify_marks, m.m_list) {
                 if (mark->group == group) {
                         fsnotify_get_mark(mark);
                         return mark;
@@ -140,6 +144,7 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
                                struct fsnotify_group *group, struct vfsmount *mnt,
                                int allow_dups)
 {
+        struct mount *m = real_mount(mnt);
         struct fsnotify_mark *lmark;
         struct hlist_node *node, *last = NULL;
         int ret = 0;
@@ -154,13 +159,13 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
         mark->m.mnt = mnt;
 
         /* is mark the first mark? */
-        if (hlist_empty(&mnt->mnt_fsnotify_marks)) {
-                hlist_add_head_rcu(&mark->m.m_list, &mnt->mnt_fsnotify_marks);
+        if (hlist_empty(&m->mnt_fsnotify_marks)) {
+                hlist_add_head_rcu(&mark->m.m_list, &m->mnt_fsnotify_marks);
                 goto out;
         }
 
         /* should mark be in the middle of the current list? */
-        hlist_for_each_entry(lmark, node, &mnt->mnt_fsnotify_marks, m.m_list) {
+        hlist_for_each_entry(lmark, node, &m->mnt_fsnotify_marks, m.m_list) {
                 last = node;
 
                 if ((lmark->group == group) && !allow_dups) {
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 97e2dacbc867..2eaa66652944 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -335,7 +335,6 @@ struct inode *ntfs_alloc_big_inode(struct super_block *sb)
 static void ntfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ntfs_big_inode_cache, NTFS_I(inode));
 }
 
@@ -2301,16 +2300,16 @@ void ntfs_evict_big_inode(struct inode *vi)
 /**
  * ntfs_show_options - show mount options in /proc/mounts
  * @sf:         seq_file in which to write our mount options
- * @mnt:        vfs mount whose mount options to display
+ * @root:       root of the mounted tree whose mount options to display
  *
  * Called by the VFS once for each mounted ntfs volume when someone reads
  * /proc/mounts in order to display the NTFS specific mount options of each
- * mount. The mount options of the vfs mount @mnt are written to the seq file
+ * mount. The mount options of fs specified by @root are written to the seq file
  * @sf and success is returned.
  */
-int ntfs_show_options(struct seq_file *sf, struct vfsmount *mnt)
+int ntfs_show_options(struct seq_file *sf, struct dentry *root)
 {
-        ntfs_volume *vol = NTFS_SB(mnt->mnt_sb);
+        ntfs_volume *vol = NTFS_SB(root->d_sb);
         int i;
 
         seq_printf(sf, ",uid=%i", vol->uid);
diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
index fe8e7e928889..db29695f845c 100644
--- a/fs/ntfs/inode.h
+++ b/fs/ntfs/inode.h
@@ -298,7 +298,7 @@ extern void ntfs_clear_extent_inode(ntfs_inode *ni);
 
 extern int ntfs_read_inode_mount(struct inode *vi);
 
-extern int ntfs_show_options(struct seq_file *sf, struct vfsmount *mnt);
+extern int ntfs_show_options(struct seq_file *sf, struct dentry *root);
 
 #ifdef NTFS_RW
 
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index b52706da4645..608be4516091 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -104,7 +104,7 @@ static bool parse_options(ntfs_volume *vol, char *opt)
         int errors = 0, sloppy = 0;
         uid_t uid = (uid_t)-1;
         gid_t gid = (gid_t)-1;
-        mode_t fmask = (mode_t)-1, dmask = (mode_t)-1;
+        umode_t fmask = (umode_t)-1, dmask = (umode_t)-1;
         int mft_zone_multiplier = -1, on_errors = -1;
         int show_sys_files = -1, case_sensitive = -1, disable_sparse = -1;
         struct nls_table *nls_map = NULL, *old_nls;
@@ -287,9 +287,9 @@ no_mount_options:
                 vol->uid = uid;
         if (gid != (gid_t)-1)
                 vol->gid = gid;
-        if (fmask != (mode_t)-1)
+        if (fmask != (umode_t)-1)
                 vol->fmask = fmask;
-        if (dmask != (mode_t)-1)
+        if (dmask != (umode_t)-1)
                 vol->dmask = dmask;
         if (show_sys_files != -1) {
                 if (show_sys_files)
diff --git a/fs/ntfs/volume.h b/fs/ntfs/volume.h
index 406ab55dfb32..15e3ba8d521a 100644
--- a/fs/ntfs/volume.h
+++ b/fs/ntfs/volume.h
@@ -48,8 +48,8 @@ typedef struct {
         unsigned long flags;            /* Miscellaneous flags, see below. */
         uid_t uid;                      /* uid that files will be mounted as. */
         gid_t gid;                      /* gid that files will be mounted as. */
-        mode_t fmask;                   /* The mask for file permissions. */
-        mode_t dmask;                   /* The mask for directory
+        umode_t fmask;                  /* The mask for file permissions. */
+        umode_t dmask;                  /* The mask for directory
                                            permissions. */
         u8 mft_zone_multiplier;         /* Initial mft zone multiplier. */
         u8 on_errors;                   /* What to do on filesystem errors. */
diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index dc45deb19e68..73ba81928bce 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -553,7 +553,7 @@ void o2net_debugfs_exit(void)
 
 int o2net_debugfs_init(void)
 {
-        mode_t mode = S_IFREG|S_IRUSR;
+        umode_t mode = S_IFREG|S_IRUSR;
 
         o2net_dentry = debugfs_create_dir(O2NET_DEBUG_DIR, NULL);
         if (o2net_dentry)
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index b42076797049..abfac0d7ae9c 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -354,7 +354,6 @@ static struct inode *dlmfs_alloc_inode(struct super_block *sb)
 static void dlmfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(dlmfs_inode_cache, DLMFS_I(inode));
 }
 
@@ -401,16 +400,14 @@ static struct backing_dev_info dlmfs_backing_dev_info = {
 static struct inode *dlmfs_get_root_inode(struct super_block *sb)
 {
         struct inode *inode = new_inode(sb);
-        int mode = S_IFDIR | 0755;
+        umode_t mode = S_IFDIR | 0755;
         struct dlmfs_inode_private *ip;
 
         if (inode) {
                 ip = DLMFS_I(inode);
 
                 inode->i_ino = get_next_ino();
-                inode->i_mode = mode;
-                inode->i_uid = current_fsuid();
-                inode->i_gid = current_fsgid();
+                inode_init_owner(inode, NULL, mode);
                 inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
                 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
                 inc_nlink(inode);
@@ -424,7 +421,7 @@ static struct inode *dlmfs_get_root_inode(struct super_block *sb)
 
 static struct inode *dlmfs_get_inode(struct inode *parent,
                                      struct dentry *dentry,
-                                     int mode)
+                                     umode_t mode)
 {
         struct super_block *sb = parent->i_sb;
         struct inode * inode = new_inode(sb);
@@ -434,9 +431,7 @@ static struct inode *dlmfs_get_inode(struct inode *parent,
                 return NULL;
 
         inode->i_ino = get_next_ino();
-        inode->i_mode = mode;
-        inode->i_uid = current_fsuid();
-        inode->i_gid = current_fsgid();
+        inode_init_owner(inode, parent, mode);
         inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
         inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 
@@ -473,13 +468,6 @@ static struct inode *dlmfs_get_inode(struct inode *parent,
                 inc_nlink(inode);
                 break;
         }
-
-        if (parent->i_mode & S_ISGID) {
-                inode->i_gid = parent->i_gid;
-                if (S_ISDIR(mode))
-                        inode->i_mode |= S_ISGID;
-        }
-
         return inode;
 }
 
@@ -489,7 +477,7 @@ static struct inode *dlmfs_get_inode(struct inode *parent,
 /* SMP-safe */
 static int dlmfs_mkdir(struct inode * dir,
                        struct dentry * dentry,
-                       int mode)
+                       umode_t mode)
 {
         int status;
         struct inode *inode = NULL;
@@ -537,7 +525,7 @@ bail:
 
 static int dlmfs_create(struct inode *dir,
                         struct dentry *dentry,
-                        int mode,
+                        umode_t mode,
                         struct nameidata *nd)
 {
         int status = 0;
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 726ff265b296..a6fda3c188aa 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -906,12 +906,12 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 if (get_user(flags, (int __user *) arg))
                         return -EFAULT;
 
-                status = mnt_want_write(filp->f_path.mnt);
+                status = mnt_want_write_file(filp);
                 if (status)
                         return status;
                 status = ocfs2_set_inode_attr(inode, flags,
                         OCFS2_FL_MODIFIABLE);
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 return status;
         case OCFS2_IOC_RESVSP:
         case OCFS2_IOC_RESVSP64:
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index 184c76b8c293..b1e3fce72ea4 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -1059,7 +1059,7 @@ int ocfs2_ioctl_move_extents(struct file *filp, void __user *argp)
         struct ocfs2_move_extents range;
         struct ocfs2_move_extents_context *context = NULL;
 
-        status = mnt_want_write(filp->f_path.mnt);
+        status = mnt_want_write_file(filp);
         if (status)
                 return status;
 
@@ -1145,7 +1145,7 @@ out:
 
         kfree(context);
 
-        mnt_drop_write(filp->f_path.mnt);
+        mnt_drop_write_file(filp);
 
         return status;
 }
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index a8b2bfea574e..be244692550d 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -185,7 +185,7 @@ bail:
         return ret;
 }
 
-static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode)
+static struct inode *ocfs2_get_init_inode(struct inode *dir, umode_t mode)
 {
         struct inode *inode;
 
@@ -207,7 +207,7 @@ static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode)
 
 static int ocfs2_mknod(struct inode *dir,
                        struct dentry *dentry,
-                       int mode,
+                       umode_t mode,
                        dev_t dev)
 {
         int status = 0;
@@ -602,7 +602,7 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
 
 static int ocfs2_mkdir(struct inode *dir,
                        struct dentry *dentry,
-                       int mode)
+                       umode_t mode)
 {
         int ret;
 
@@ -617,7 +617,7 @@ static int ocfs2_mkdir(struct inode *dir,
 
 static int ocfs2_create(struct inode *dir,
                         struct dentry *dentry,
-                        int mode,
+                        umode_t mode,
                         struct nameidata *nd)
 {
         int ret;
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 4994f8b0e604..604e12c4e979 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -108,7 +108,7 @@ static int ocfs2_parse_options(struct super_block *sb, char *options,
                                int is_remount);
 static int ocfs2_check_set_options(struct super_block *sb,
                                    struct mount_options *options);
-static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt);
+static int ocfs2_show_options(struct seq_file *s, struct dentry *root);
 static void ocfs2_put_super(struct super_block *sb);
 static int ocfs2_mount_volume(struct super_block *sb);
 static int ocfs2_remount(struct super_block *sb, int *flags, char *data);
@@ -569,7 +569,6 @@ static struct inode *ocfs2_alloc_inode(struct super_block *sb)
 static void ocfs2_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode));
 }
 
@@ -1534,9 +1533,9 @@ bail:
         return status;
 }
 
-static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
+static int ocfs2_show_options(struct seq_file *s, struct dentry *root)
 {
-        struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb);
+        struct ocfs2_super *osb = OCFS2_SB(root->d_sb);
         unsigned long opts = osb->s_mount_opt;
         unsigned int local_alloc_megs;
 
@@ -1568,8 +1567,7 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
         if (osb->preferred_slot != OCFS2_INVALID_SLOT)
                 seq_printf(s, ",preferred_slot=%d", osb->preferred_slot);
 
-        if (!(mnt->mnt_flags & MNT_NOATIME) && !(mnt->mnt_flags & MNT_RELATIME))
-                seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum);
+        seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum);
 
         if (osb->osb_commit_interval)
                 seq_printf(s, ",commit=%u",
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index aa9e8777b09a..0ba9ea1e7961 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -623,7 +623,7 @@ int ocfs2_calc_security_init(struct inode *dir,
 
 int ocfs2_calc_xattr_init(struct inode *dir,
                           struct buffer_head *dir_bh,
-                          int mode,
+                          umode_t mode,
                           struct ocfs2_security_xattr_info *si,
                           int *want_clusters,
                           int *xattr_credits,
diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
index d63cfb72316b..e5c7f15465b4 100644
--- a/fs/ocfs2/xattr.h
+++ b/fs/ocfs2/xattr.h
@@ -68,7 +68,7 @@ int ocfs2_calc_security_init(struct inode *,
                              struct ocfs2_security_xattr_info *,
                              int *, int *, struct ocfs2_alloc_context **);
 int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *,
-                          int, struct ocfs2_security_xattr_info *,
+                          umode_t, struct ocfs2_security_xattr_info *,
                           int *, int *, int *);
 
 /*
diff --git a/fs/omfs/dir.c b/fs/omfs/dir.c
index 98e544274390..f00576ec320f 100644
--- a/fs/omfs/dir.c
+++ b/fs/omfs/dir.c
@@ -255,7 +255,7 @@ static int omfs_remove(struct inode *dir, struct dentry *dentry)
         return 0;
 }
 
-static int omfs_add_node(struct inode *dir, struct dentry *dentry, int mode)
+static int omfs_add_node(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int err;
         struct inode *inode = omfs_new_inode(dir, mode);
@@ -279,12 +279,12 @@ out_free_inode:
         return err;
 }
 
-static int omfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int omfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         return omfs_add_node(dir, dentry, mode | S_IFDIR);
 }
 
-static int omfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int omfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         return omfs_add_node(dir, dentry, mode | S_IFREG);
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index e043c4cb9a97..6065bb0ba207 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -28,7 +28,7 @@ struct buffer_head *omfs_bread(struct super_block *sb, sector_t block)
         return sb_bread(sb, clus_to_blk(sbi, block));
 }
 
-struct inode *omfs_new_inode(struct inode *dir, int mode)
+struct inode *omfs_new_inode(struct inode *dir, umode_t mode)
 {
         struct inode *inode;
         u64 new_block;
diff --git a/fs/omfs/omfs.h b/fs/omfs/omfs.h
index 7d414fef501a..8941f12c6b01 100644
--- a/fs/omfs/omfs.h
+++ b/fs/omfs/omfs.h
@@ -60,7 +60,7 @@ extern int omfs_shrink_inode(struct inode *inode);
 /* inode.c */
 extern struct buffer_head *omfs_bread(struct super_block *sb, sector_t block);
 extern struct inode *omfs_iget(struct super_block *sb, ino_t inode);
-extern struct inode *omfs_new_inode(struct inode *dir, int mode);
+extern struct inode *omfs_new_inode(struct inode *dir, umode_t mode);
 extern int omfs_reserve_block(struct super_block *sb, sector_t block);
 extern int omfs_find_empty_block(struct super_block *sb, int mode, ino_t *ino);
 extern int omfs_sync_inode(struct inode *inode);
diff --git a/fs/open.c b/fs/open.c
index 22c41b543f2d..77becc041149 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -456,7 +456,7 @@ static int chmod_common(struct path *path, umode_t mode)
         if (error)
                 return error;
         mutex_lock(&inode->i_mutex);
-        error = security_path_chmod(path->dentry, path->mnt, mode);
+        error = security_path_chmod(path, mode);
         if (error)
                 goto out_unlock;
         newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
@@ -468,7 +468,7 @@ out_unlock:
         return error;
 }
 
-SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode)
+SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode)
 {
         struct file * file;
         int err = -EBADF;
@@ -482,7 +482,7 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode)
         return err;
 }
 
-SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode)
+SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode)
 {
         struct path path;
         int error;
@@ -495,7 +495,7 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode)
         return error;
 }
 
-SYSCALL_DEFINE2(chmod, const char __user *, filename, mode_t, mode)
+SYSCALL_DEFINE2(chmod, const char __user *, filename, umode_t, mode)
 {
         return sys_fchmodat(AT_FDCWD, filename, mode);
 }
@@ -608,7 +608,7 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
         dentry = file->f_path.dentry;
         audit_inode(NULL, dentry);
         error = chown_common(&file->f_path, user, group);
-        mnt_drop_write(file->f_path.mnt);
+        mnt_drop_write_file(file);
 out_fput:
         fput(file);
 out:
@@ -877,7 +877,7 @@ void fd_install(unsigned int fd, struct file *file)
 
 EXPORT_SYMBOL(fd_install);
 
-static inline int build_open_flags(int flags, int mode, struct open_flags *op)
+static inline int build_open_flags(int flags, umode_t mode, struct open_flags *op)
 {
         int lookup_flags = 0;
         int acc_mode;
@@ -948,7 +948,7 @@ static inline int build_open_flags(int flags, int mode, struct open_flags *op)
  * have to.  But in generally you should not do this, so please move
  * along, nothing to see here..
  */
-struct file *filp_open(const char *filename, int flags, int mode)
+struct file *filp_open(const char *filename, int flags, umode_t mode)
 {
         struct open_flags op;
         int lookup = build_open_flags(flags, mode, &op);
@@ -970,7 +970,7 @@ struct file *file_open_root(struct dentry *dentry, struct vfsmount *mnt,
 }
 EXPORT_SYMBOL(file_open_root);
 
-long do_sys_open(int dfd, const char __user *filename, int flags, int mode)
+long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
 {
         struct open_flags op;
         int lookup = build_open_flags(flags, mode, &op);
@@ -994,7 +994,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, int mode)
         return fd;
 }
 
-SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, int, mode)
+SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, umode_t, mode)
 {
         long ret;
 
@@ -1008,7 +1008,7 @@ SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, int, mode)
 }
 
 SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags,
-                int, mode)
+                umode_t, mode)
 {
         long ret;
 
@@ -1027,7 +1027,7 @@ SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags,
  * For backward compatibility?  Maybe this should be moved
  * into arch/i386 instead?
  */
-SYSCALL_DEFINE2(creat, const char __user *, pathname, int, mode)
+SYSCALL_DEFINE2(creat, const char __user *, pathname, umode_t, mode)
 {
         return sys_open(pathname, O_CREAT | O_WRONLY | O_TRUNC, mode);
 }
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index e4e0ff7962e2..a88c03bc749d 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -346,7 +346,6 @@ static struct inode *openprom_alloc_inode(struct super_block *sb)
 static void openprom_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(op_inode_cachep, OP_I(inode));
 }
 
diff --git a/fs/pipe.c b/fs/pipe.c
index 4065f07366b3..f0e485d54e64 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1290,11 +1290,4 @@ static int __init init_pipe_fs(void)
         return err;
 }
 
-static void __exit exit_pipe_fs(void)
-{
-        kern_unmount(pipe_mnt);
-        unregister_filesystem(&pipe_fs_type);
-}
-
 fs_initcall(init_pipe_fs);
-module_exit(exit_pipe_fs);
diff --git a/fs/pnode.c b/fs/pnode.c
index d42514e32380..ab5fa9e1a79a 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -13,45 +13,30 @@
 #include "pnode.h"
 
 /* return the next shared peer mount of @p */
-static inline struct vfsmount *next_peer(struct vfsmount *p)
+static inline struct mount *next_peer(struct mount *p)
 {
-        return list_entry(p->mnt_share.next, struct vfsmount, mnt_share);
+        return list_entry(p->mnt_share.next, struct mount, mnt_share);
 }
 
-static inline struct vfsmount *first_slave(struct vfsmount *p)
+static inline struct mount *first_slave(struct mount *p)
 {
-        return list_entry(p->mnt_slave_list.next, struct vfsmount, mnt_slave);
+        return list_entry(p->mnt_slave_list.next, struct mount, mnt_slave);
 }
 
-static inline struct vfsmount *next_slave(struct vfsmount *p)
+static inline struct mount *next_slave(struct mount *p)
 {
-        return list_entry(p->mnt_slave.next, struct vfsmount, mnt_slave);
+        return list_entry(p->mnt_slave.next, struct mount, mnt_slave);
 }
 
-/*
- * Return true if path is reachable from root
- *
- * namespace_sem is held, and mnt is attached
- */
-static bool is_path_reachable(struct vfsmount *mnt, struct dentry *dentry,
-                         const struct path *root)
-{
-        while (mnt != root->mnt && mnt->mnt_parent != mnt) {
-                dentry = mnt->mnt_mountpoint;
-                mnt = mnt->mnt_parent;
-        }
-        return mnt == root->mnt && is_subdir(dentry, root->dentry);
-}
-
-static struct vfsmount *get_peer_under_root(struct vfsmount *mnt,
-                                            struct mnt_namespace *ns,
-                                            const struct path *root)
+static struct mount *get_peer_under_root(struct mount *mnt,
+                                         struct mnt_namespace *ns,
+                                         const struct path *root)
 {
-        struct vfsmount *m = mnt;
+        struct mount *m = mnt;
 
         do {
                 /* Check the namespace first for optimization */
-                if (m->mnt_ns == ns && is_path_reachable(m, m->mnt_root, root))
+                if (m->mnt_ns == ns && is_path_reachable(m, m->mnt.mnt_root, root))
                         return m;
 
                 m = next_peer(m);
@@ -66,12 +51,12 @@ static struct vfsmount *get_peer_under_root(struct vfsmount *mnt,
  *
  * Caller must hold namespace_sem
  */
-int get_dominating_id(struct vfsmount *mnt, const struct path *root)
+int get_dominating_id(struct mount *mnt, const struct path *root)
 {
-        struct vfsmount *m;
+        struct mount *m;
 
         for (m = mnt->mnt_master; m != NULL; m = m->mnt_master) {
-                struct vfsmount *d = get_peer_under_root(m, mnt->mnt_ns, root);
+                struct mount *d = get_peer_under_root(m, mnt->mnt_ns, root);
                 if (d)
                         return d->mnt_group_id;
         }
@@ -79,10 +64,10 @@ int get_dominating_id(struct vfsmount *mnt, const struct path *root)
         return 0;
 }
 
-static int do_make_slave(struct vfsmount *mnt)
+static int do_make_slave(struct mount *mnt)
 {
-        struct vfsmount *peer_mnt = mnt, *master = mnt->mnt_master;
-        struct vfsmount *slave_mnt;
+        struct mount *peer_mnt = mnt, *master = mnt->mnt_master;
+        struct mount *slave_mnt;
 
         /*
          * slave 'mnt' to a peer mount that has the
@@ -90,7 +75,7 @@ static int do_make_slave(struct vfsmount *mnt)
          * slave it to anything that is available.
          */
         while ((peer_mnt = next_peer(peer_mnt)) != mnt &&
-               peer_mnt->mnt_root != mnt->mnt_root) ;
+               peer_mnt->mnt.mnt_root != mnt->mnt.mnt_root) ;
 
         if (peer_mnt == mnt) {
                 peer_mnt = next_peer(mnt);
@@ -116,7 +101,7 @@ static int do_make_slave(struct vfsmount *mnt)
                 struct list_head *p = &mnt->mnt_slave_list;
                 while (!list_empty(p)) {
                         slave_mnt = list_first_entry(p,
-                                        struct vfsmount, mnt_slave);
+                                        struct mount, mnt_slave);
                         list_del_init(&slave_mnt->mnt_slave);
                         slave_mnt->mnt_master = NULL;
                 }
@@ -129,7 +114,7 @@ static int do_make_slave(struct vfsmount *mnt)
 /*
  * vfsmount lock must be held for write
  */
-void change_mnt_propagation(struct vfsmount *mnt, int type)
+void change_mnt_propagation(struct mount *mnt, int type)
 {
         if (type == MS_SHARED) {
                 set_mnt_shared(mnt);
@@ -140,9 +125,9 @@ void change_mnt_propagation(struct vfsmount *mnt, int type)
                 list_del_init(&mnt->mnt_slave);
                 mnt->mnt_master = NULL;
                 if (type == MS_UNBINDABLE)
-                        mnt->mnt_flags |= MNT_UNBINDABLE;
+                        mnt->mnt.mnt_flags |= MNT_UNBINDABLE;
                 else
-                        mnt->mnt_flags &= ~MNT_UNBINDABLE;
+                        mnt->mnt.mnt_flags &= ~MNT_UNBINDABLE;
         }
 }
 
@@ -156,20 +141,19 @@ void change_mnt_propagation(struct vfsmount *mnt, int type)
  * vfsmount found while iterating with propagation_next() is
  * a peer of one we'd found earlier.
  */
-static struct vfsmount *propagation_next(struct vfsmount *m,
-                                         struct vfsmount *origin)
+static struct mount *propagation_next(struct mount *m,
+                                         struct mount *origin)
 {
         /* are there any slaves of this mount? */
         if (!IS_MNT_NEW(m) && !list_empty(&m->mnt_slave_list))
                 return first_slave(m);
 
         while (1) {
-                struct vfsmount *next;
-                struct vfsmount *master = m->mnt_master;
+                struct mount *master = m->mnt_master;
 
                 if (master == origin->mnt_master) {
-                        next = next_peer(m);
-                        return ((next == origin) ? NULL : next);
+                        struct mount *next = next_peer(m);
+                        return (next == origin) ? NULL : next;
                 } else if (m->mnt_slave.next != &master->mnt_slave_list)
                         return next_slave(m);
 
@@ -187,13 +171,13 @@ static struct vfsmount *propagation_next(struct vfsmount *m,
  * @type        return CL_SLAVE if the new mount has to be
  *              cloned as a slave.
  */
-static struct vfsmount *get_source(struct vfsmount *dest,
-                                        struct vfsmount *last_dest,
-                                        struct vfsmount *last_src,
-                                        int *type)
+static struct mount *get_source(struct mount *dest,
+                                struct mount *last_dest,
+                                struct mount *last_src,
+                                int *type)
 {
-        struct vfsmount *p_last_src = NULL;
-        struct vfsmount *p_last_dest = NULL;
+        struct mount *p_last_src = NULL;
+        struct mount *p_last_dest = NULL;
 
         while (last_dest != dest->mnt_master) {
                 p_last_dest = last_dest;
@@ -233,33 +217,33 @@ static struct vfsmount *get_source(struct vfsmount *dest,
  * @source_mnt: source mount.
  * @tree_list : list of heads of trees to be attached.
  */
-int propagate_mnt(struct vfsmount *dest_mnt, struct dentry *dest_dentry,
-                    struct vfsmount *source_mnt, struct list_head *tree_list)
+int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry,
+                    struct mount *source_mnt, struct list_head *tree_list)
 {
-        struct vfsmount *m, *child;
+        struct mount *m, *child;
         int ret = 0;
-        struct vfsmount *prev_dest_mnt = dest_mnt;
-        struct vfsmount *prev_src_mnt  = source_mnt;
+        struct mount *prev_dest_mnt = dest_mnt;
+        struct mount *prev_src_mnt  = source_mnt;
         LIST_HEAD(tmp_list);
         LIST_HEAD(umount_list);
 
         for (m = propagation_next(dest_mnt, dest_mnt); m;
                         m = propagation_next(m, dest_mnt)) {
                 int type;
-                struct vfsmount *source;
+                struct mount *source;
 
                 if (IS_MNT_NEW(m))
                         continue;
 
                 source =  get_source(m, prev_dest_mnt, prev_src_mnt, &type);
 
-                if (!(child = copy_tree(source, source->mnt_root, type))) {
+                if (!(child = copy_tree(source, source->mnt.mnt_root, type))) {
                         ret = -ENOMEM;
                         list_splice(tree_list, tmp_list.prev);
                         goto out;
                 }
 
-                if (is_subdir(dest_dentry, m->mnt_root)) {
+                if (is_subdir(dest_dentry, m->mnt.mnt_root)) {
                         mnt_set_mountpoint(m, dest_dentry, child);
                         list_add_tail(&child->mnt_hash, tree_list);
                 } else {
@@ -275,7 +259,7 @@ int propagate_mnt(struct vfsmount *dest_mnt, struct dentry *dest_dentry,
 out:
         br_write_lock(vfsmount_lock);
         while (!list_empty(&tmp_list)) {
-                child = list_first_entry(&tmp_list, struct vfsmount, mnt_hash);
+                child = list_first_entry(&tmp_list, struct mount, mnt_hash);
                 umount_tree(child, 0, &umount_list);
         }
         br_write_unlock(vfsmount_lock);
@@ -286,7 +270,7 @@ out:
 /*
  * return true if the refcount is greater than count
  */
-static inline int do_refcount_check(struct vfsmount *mnt, int count)
+static inline int do_refcount_check(struct mount *mnt, int count)
 {
         int mycount = mnt_get_count(mnt) - mnt->mnt_ghosts;
         return (mycount > count);
@@ -302,10 +286,10 @@ static inline int do_refcount_check(struct vfsmount *mnt, int count)
  *
  * vfsmount lock must be held for write
  */
-int propagate_mount_busy(struct vfsmount *mnt, int refcnt)
+int propagate_mount_busy(struct mount *mnt, int refcnt)
 {
-        struct vfsmount *m, *child;
-        struct vfsmount *parent = mnt->mnt_parent;
+        struct mount *m, *child;
+        struct mount *parent = mnt->mnt_parent;
         int ret = 0;
 
         if (mnt == parent)
@@ -321,7 +305,7 @@ int propagate_mount_busy(struct vfsmount *mnt, int refcnt)
 
         for (m = propagation_next(parent, parent); m;
                         m = propagation_next(m, parent)) {
-                child = __lookup_mnt(m, mnt->mnt_mountpoint, 0);
+                child = __lookup_mnt(&m->mnt, mnt->mnt_mountpoint, 0);
                 if (child && list_empty(&child->mnt_mounts) &&
                     (ret = do_refcount_check(child, 1)))
                         break;
@@ -333,17 +317,17 @@ int propagate_mount_busy(struct vfsmount *mnt, int refcnt)
  * NOTE: unmounting 'mnt' naturally propagates to all other mounts its
  * parent propagates to.
  */
-static void __propagate_umount(struct vfsmount *mnt)
+static void __propagate_umount(struct mount *mnt)
 {
-        struct vfsmount *parent = mnt->mnt_parent;
-        struct vfsmount *m;
+        struct mount *parent = mnt->mnt_parent;
+        struct mount *m;
 
         BUG_ON(parent == mnt);
 
         for (m = propagation_next(parent, parent); m;
                         m = propagation_next(m, parent)) {
 
-                struct vfsmount *child = __lookup_mnt(m,
+                struct mount *child = __lookup_mnt(&m->mnt,
                                         mnt->mnt_mountpoint, 0);
                 /*
                  * umount the child only if the child has no
@@ -363,7 +347,7 @@ static void __propagate_umount(struct vfsmount *mnt)
  */
 int propagate_umount(struct list_head *list)
 {
-        struct vfsmount *mnt;
+        struct mount *mnt;
 
         list_for_each_entry(mnt, list, mnt_hash)
                 __propagate_umount(mnt);
diff --git a/fs/pnode.h b/fs/pnode.h
index 1ea4ae1efcd3..65c60979d541 100644
--- a/fs/pnode.h
+++ b/fs/pnode.h
@@ -9,13 +9,13 @@
 #define _LINUX_PNODE_H
 
 #include <linux/list.h>
-#include <linux/mount.h>
+#include "mount.h"
 
-#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
-#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
-#define IS_MNT_NEW(mnt)  (!mnt->mnt_ns)
-#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
-#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
+#define IS_MNT_SHARED(m) ((m)->mnt.mnt_flags & MNT_SHARED)
+#define IS_MNT_SLAVE(m) ((m)->mnt_master)
+#define IS_MNT_NEW(m)  (!(m)->mnt_ns)
+#define CLEAR_MNT_SHARED(m) ((m)->mnt.mnt_flags &= ~MNT_SHARED)
+#define IS_MNT_UNBINDABLE(m) ((m)->mnt.mnt_flags & MNT_UNBINDABLE)
 
 #define CL_EXPIRE               0x01
 #define CL_SLAVE                0x02
@@ -23,17 +23,25 @@
 #define CL_MAKE_SHARED          0x08
 #define CL_PRIVATE              0x10
 
-static inline void set_mnt_shared(struct vfsmount *mnt)
+static inline void set_mnt_shared(struct mount *mnt)
 {
-        mnt->mnt_flags &= ~MNT_SHARED_MASK;
-        mnt->mnt_flags |= MNT_SHARED;
+        mnt->mnt.mnt_flags &= ~MNT_SHARED_MASK;
+        mnt->mnt.mnt_flags |= MNT_SHARED;
 }
 
-void change_mnt_propagation(struct vfsmount *, int);
-int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
+void change_mnt_propagation(struct mount *, int);
+int propagate_mnt(struct mount *, struct dentry *, struct mount *,
                 struct list_head *);
 int propagate_umount(struct list_head *);
-int propagate_mount_busy(struct vfsmount *, int);
-void mnt_release_group_id(struct vfsmount *);
-int get_dominating_id(struct vfsmount *mnt, const struct path *root);
+int propagate_mount_busy(struct mount *, int);
+void mnt_release_group_id(struct mount *);
+int get_dominating_id(struct mount *mnt, const struct path *root);
+unsigned int mnt_get_count(struct mount *mnt);
+void mnt_set_mountpoint(struct mount *, struct dentry *,
+                        struct mount *);
+void release_mounts(struct list_head *);
+void umount_tree(struct mount *, int, struct list_head *);
+struct mount *copy_tree(struct mount *, struct dentry *, int);
+bool is_path_reachable(struct mount *, struct dentry *,
+                         const struct path *root);
 #endif /* _LINUX_PNODE_H */
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 851ba3dcdc29..a1dddda999f2 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -101,7 +101,7 @@
 struct pid_entry {
         char *name;
         int len;
-        mode_t mode;
+        umode_t mode;
         const struct inode_operations *iop;
         const struct file_operations *fop;
         union proc_op op;
@@ -631,120 +631,6 @@ static const struct inode_operations proc_def_inode_operations = {
         .setattr        = proc_setattr,
 };
 
-static int mounts_open_common(struct inode *inode, struct file *file,
-                              const struct seq_operations *op)
-{
-        struct task_struct *task = get_proc_task(inode);
-        struct nsproxy *nsp;
-        struct mnt_namespace *ns = NULL;
-        struct path root;
-        struct proc_mounts *p;
-        int ret = -EINVAL;
-
-        if (task) {
-                rcu_read_lock();
-                nsp = task_nsproxy(task);
-                if (nsp) {
-                        ns = nsp->mnt_ns;
-                        if (ns)
-                                get_mnt_ns(ns);
-                }
-                rcu_read_unlock();
-                if (ns && get_task_root(task, &root) == 0)
-                        ret = 0;
-                put_task_struct(task);
-        }
-
-        if (!ns)
-                goto err;
-        if (ret)
-                goto err_put_ns;
-
-        ret = -ENOMEM;
-        p = kmalloc(sizeof(struct proc_mounts), GFP_KERNEL);
-        if (!p)
-                goto err_put_path;
-
-        file->private_data = &p->m;
-        ret = seq_open(file, op);
-        if (ret)
-                goto err_free;
-
-        p->m.private = p;
-        p->ns = ns;
-        p->root = root;
-        p->m.poll_event = ns->event;
-
-        return 0;
-
- err_free:
-        kfree(p);
- err_put_path:
-        path_put(&root);
- err_put_ns:
-        put_mnt_ns(ns);
- err:
-        return ret;
-}
-
-static int mounts_release(struct inode *inode, struct file *file)
-{
-        struct proc_mounts *p = file->private_data;
-        path_put(&p->root);
-        put_mnt_ns(p->ns);
-        return seq_release(inode, file);
-}
-
-static unsigned mounts_poll(struct file *file, poll_table *wait)
-{
-        struct proc_mounts *p = file->private_data;
-        unsigned res = POLLIN | POLLRDNORM;
-
-        poll_wait(file, &p->ns->poll, wait);
-        if (mnt_had_events(p))
-                res |= POLLERR | POLLPRI;
-
-        return res;
-}
-
-static int mounts_open(struct inode *inode, struct file *file)
-{
-        return mounts_open_common(inode, file, &mounts_op);
-}
-
-static const struct file_operations proc_mounts_operations = {
-        .open           = mounts_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = mounts_release,
-        .poll           = mounts_poll,
-};
-
-static int mountinfo_open(struct inode *inode, struct file *file)
-{
-        return mounts_open_common(inode, file, &mountinfo_op);
-}
-
-static const struct file_operations proc_mountinfo_operations = {
-        .open           = mountinfo_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = mounts_release,
-        .poll           = mounts_poll,
-};
-
-static int mountstats_open(struct inode *inode, struct file *file)
-{
-        return mounts_open_common(inode, file, &mountstats_op);
-}
-
-static const struct file_operations proc_mountstats_operations = {
-        .open           = mountstats_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = mounts_release,
-};
-
 #define PROC_BLOCK_SIZE (3*1024)                /* 4K page size but our output routines use some slack for overruns */
 
 static ssize_t proc_info_read(struct file * file, char __user * buf,
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 10090d9c7ad5..2edf34f2eb61 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -597,7 +597,7 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
 
 static struct proc_dir_entry *__proc_create(struct proc_dir_entry **parent,
                                           const char *name,
-                                          mode_t mode,
+                                          umode_t mode,
                                           nlink_t nlink)
 {
         struct proc_dir_entry *ent = NULL;
@@ -659,7 +659,7 @@ struct proc_dir_entry *proc_symlink(const char *name,
 }
 EXPORT_SYMBOL(proc_symlink);
 
-struct proc_dir_entry *proc_mkdir_mode(const char *name, mode_t mode,
+struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
                 struct proc_dir_entry *parent)
 {
         struct proc_dir_entry *ent;
@@ -699,7 +699,7 @@ struct proc_dir_entry *proc_mkdir(const char *name,
 }
 EXPORT_SYMBOL(proc_mkdir);
 
-struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
+struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode,
                                          struct proc_dir_entry *parent)
 {
         struct proc_dir_entry *ent;
@@ -728,7 +728,7 @@ struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
 }
 EXPORT_SYMBOL(create_proc_entry);
 
-struct proc_dir_entry *proc_create_data(const char *name, mode_t mode,
+struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
                                         struct proc_dir_entry *parent,
                                         const struct file_operations *proc_fops,
                                         void *data)
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 7737c5468a40..51a176622b8f 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -77,7 +77,6 @@ static struct inode *proc_alloc_inode(struct super_block *sb)
 static void proc_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(proc_inode_cachep, PROC_I(inode));
 }
 
diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
index be177f702acb..27da860115c6 100644
--- a/fs/proc/namespaces.c
+++ b/fs/proc/namespaces.c
@@ -9,7 +9,6 @@
 #include <linux/file.h>
 #include <linux/utsname.h>
 #include <net/net_namespace.h>
-#include <linux/mnt_namespace.h>
 #include <linux/ipc_namespace.h>
 #include <linux/pid_namespace.h>
 #include "internal.h"
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index f738024ccc8e..06e1cc17caf6 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -179,7 +179,7 @@ const struct file_operations proc_net_operations = {
 
 
 struct proc_dir_entry *proc_net_fops_create(struct net *net,
-        const char *name, mode_t mode, const struct file_operations *fops)
+        const char *name, umode_t mode, const struct file_operations *fops)
 {
         return proc_create(name, mode, net->proc_net, fops);
 }
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
new file mode 100644
index 000000000000..12412852d88a
--- /dev/null
+++ b/fs/proc_namespace.c
@@ -0,0 +1,333 @@
+/*
+ * fs/proc_namespace.c - handling of /proc/<pid>/{mounts,mountinfo,mountstats}
+ *
+ * In fact, that's a piece of procfs; it's *almost* isolated from
+ * the rest of fs/proc, but has rather close relationships with
+ * fs/namespace.c, thus here instead of fs/proc
+ *
+ */
+#include <linux/mnt_namespace.h>
+#include <linux/nsproxy.h>
+#include <linux/security.h>
+#include <linux/fs_struct.h>
+#include "proc/internal.h" /* only for get_proc_task() in ->open() */
+
+#include "pnode.h"
+#include "internal.h"
+
+static unsigned mounts_poll(struct file *file, poll_table *wait)
+{
+        struct proc_mounts *p = file->private_data;
+        struct mnt_namespace *ns = p->ns;
+        unsigned res = POLLIN | POLLRDNORM;
+
+        poll_wait(file, &p->ns->poll, wait);
+
+        br_read_lock(vfsmount_lock);
+        if (p->m.poll_event != ns->event) {
+                p->m.poll_event = ns->event;
+                res |= POLLERR | POLLPRI;
+        }
+        br_read_unlock(vfsmount_lock);
+
+        return res;
+}
+
+struct proc_fs_info {
+        int flag;
+        const char *str;
+};
+
+static int show_sb_opts(struct seq_file *m, struct super_block *sb)
+{
+        static const struct proc_fs_info fs_info[] = {
+                { MS_SYNCHRONOUS, ",sync" },
+                { MS_DIRSYNC, ",dirsync" },
+                { MS_MANDLOCK, ",mand" },
+                { 0, NULL }
+        };
+        const struct proc_fs_info *fs_infop;
+
+        for (fs_infop = fs_info; fs_infop->flag; fs_infop++) {
+                if (sb->s_flags & fs_infop->flag)
+                        seq_puts(m, fs_infop->str);
+        }
+
+        return security_sb_show_options(m, sb);
+}
+
+static void show_mnt_opts(struct seq_file *m, struct vfsmount *mnt)
+{
+        static const struct proc_fs_info mnt_info[] = {
+                { MNT_NOSUID, ",nosuid" },
+                { MNT_NODEV, ",nodev" },
+                { MNT_NOEXEC, ",noexec" },
+                { MNT_NOATIME, ",noatime" },
+                { MNT_NODIRATIME, ",nodiratime" },
+                { MNT_RELATIME, ",relatime" },
+                { 0, NULL }
+        };
+        const struct proc_fs_info *fs_infop;
+
+        for (fs_infop = mnt_info; fs_infop->flag; fs_infop++) {
+                if (mnt->mnt_flags & fs_infop->flag)
+                        seq_puts(m, fs_infop->str);
+        }
+}
+
+static inline void mangle(struct seq_file *m, const char *s)
+{
+        seq_escape(m, s, " \t\n\\");
+}
+
+static void show_type(struct seq_file *m, struct super_block *sb)
+{
+        mangle(m, sb->s_type->name);
+        if (sb->s_subtype && sb->s_subtype[0]) {
+                seq_putc(m, '.');
+                mangle(m, sb->s_subtype);
+        }
+}
+
+static int show_vfsmnt(struct seq_file *m, struct vfsmount *mnt)
+{
+        struct mount *r = real_mount(mnt);
+        int err = 0;
+        struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
+        struct super_block *sb = mnt_path.dentry->d_sb;
+
+        if (sb->s_op->show_devname) {
+                err = sb->s_op->show_devname(m, mnt_path.dentry);
+                if (err)
+                        goto out;
+        } else {
+                mangle(m, r->mnt_devname ? r->mnt_devname : "none");
+        }
+        seq_putc(m, ' ');
+        seq_path(m, &mnt_path, " \t\n\\");
+        seq_putc(m, ' ');
+        show_type(m, sb);
+        seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw");
+        err = show_sb_opts(m, sb);
+        if (err)
+                goto out;
+        show_mnt_opts(m, mnt);
+        if (sb->s_op->show_options)
+                err = sb->s_op->show_options(m, mnt_path.dentry);
+        seq_puts(m, " 0 0\n");
+out:
+        return err;
+}
+
+static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt)
+{
+        struct proc_mounts *p = m->private;
+        struct mount *r = real_mount(mnt);
+        struct super_block *sb = mnt->mnt_sb;
+        struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
+        struct path root = p->root;
+        int err = 0;
+
+        seq_printf(m, "%i %i %u:%u ", r->mnt_id, r->mnt_parent->mnt_id,
+                   MAJOR(sb->s_dev), MINOR(sb->s_dev));
+        if (sb->s_op->show_path)
+                err = sb->s_op->show_path(m, mnt->mnt_root);
+        else
+                seq_dentry(m, mnt->mnt_root, " \t\n\\");
+        if (err)
+                goto out;
+        seq_putc(m, ' ');
+
+        /* mountpoints outside of chroot jail will give SEQ_SKIP on this */
+        err = seq_path_root(m, &mnt_path, &root, " \t\n\\");
+        if (err)
+                goto out;
+
+        seq_puts(m, mnt->mnt_flags & MNT_READONLY ? " ro" : " rw");
+        show_mnt_opts(m, mnt);
+
+        /* Tagged fields ("foo:X" or "bar") */
+        if (IS_MNT_SHARED(r))
+                seq_printf(m, " shared:%i", r->mnt_group_id);
+        if (IS_MNT_SLAVE(r)) {
+                int master = r->mnt_master->mnt_group_id;
+                int dom = get_dominating_id(r, &p->root);
+                seq_printf(m, " master:%i", master);
+                if (dom && dom != master)
+                        seq_printf(m, " propagate_from:%i", dom);
+        }
+        if (IS_MNT_UNBINDABLE(r))
+                seq_puts(m, " unbindable");
+
+        /* Filesystem specific data */
+        seq_puts(m, " - ");
+        show_type(m, sb);
+        seq_putc(m, ' ');
+        if (sb->s_op->show_devname)
+                err = sb->s_op->show_devname(m, mnt->mnt_root);
+        else
+                mangle(m, r->mnt_devname ? r->mnt_devname : "none");
+        if (err)
+                goto out;
+        seq_puts(m, sb->s_flags & MS_RDONLY ? " ro" : " rw");
+        err = show_sb_opts(m, sb);
+        if (err)
+                goto out;
+        if (sb->s_op->show_options)
+                err = sb->s_op->show_options(m, mnt->mnt_root);
+        seq_putc(m, '\n');
+out:
+        return err;
+}
+
+static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt)
+{
+        struct mount *r = real_mount(mnt);
+        struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
+        struct super_block *sb = mnt_path.dentry->d_sb;
+        int err = 0;
+
+        /* device */
+        if (sb->s_op->show_devname) {
+                seq_puts(m, "device ");
+                err = sb->s_op->show_devname(m, mnt_path.dentry);
+        } else {
+                if (r->mnt_devname) {
+                        seq_puts(m, "device ");
+                        mangle(m, r->mnt_devname);
+                } else
+                        seq_puts(m, "no device");
+        }
+
+        /* mount point */
+        seq_puts(m, " mounted on ");
+        seq_path(m, &mnt_path, " \t\n\\");
+        seq_putc(m, ' ');
+
+        /* file system type */
+        seq_puts(m, "with fstype ");
+        show_type(m, sb);
+
+        /* optional statistics */
+        if (sb->s_op->show_stats) {
+                seq_putc(m, ' ');
+                if (!err)
+                        err = sb->s_op->show_stats(m, mnt_path.dentry);
+        }
+
+        seq_putc(m, '\n');
+        return err;
+}
+
+static int mounts_open_common(struct inode *inode, struct file *file,
+                              int (*show)(struct seq_file *, struct vfsmount *))
+{
+        struct task_struct *task = get_proc_task(inode);
+        struct nsproxy *nsp;
+        struct mnt_namespace *ns = NULL;
+        struct path root;
+        struct proc_mounts *p;
+        int ret = -EINVAL;
+
+        if (!task)
+                goto err;
+
+        rcu_read_lock();
+        nsp = task_nsproxy(task);
+        if (!nsp) {
+                rcu_read_unlock();
+                put_task_struct(task);
+                goto err;
+        }
+        ns = nsp->mnt_ns;
+        if (!ns) {
+                rcu_read_unlock();
+                put_task_struct(task);
+                goto err;
+        }
+        get_mnt_ns(ns);
+        rcu_read_unlock();
+        task_lock(task);
+        if (!task->fs) {
+                task_unlock(task);
+                put_task_struct(task);
+                ret = -ENOENT;
+                goto err_put_ns;
+        }
+        get_fs_root(task->fs, &root);
+        task_unlock(task);
+        put_task_struct(task);
+
+        ret = -ENOMEM;
+        p = kmalloc(sizeof(struct proc_mounts), GFP_KERNEL);
+        if (!p)
+                goto err_put_path;
+
+        file->private_data = &p->m;
+        ret = seq_open(file, &mounts_op);
+        if (ret)
+                goto err_free;
+
+        p->m.private = p;
+        p->ns = ns;
+        p->root = root;
+        p->m.poll_event = ns->event;
+        p->show = show;
+
+        return 0;
+
+ err_free:
+        kfree(p);
+ err_put_path:
+        path_put(&root);
+ err_put_ns:
+        put_mnt_ns(ns);
+ err:
+        return ret;
+}
+
+static int mounts_release(struct inode *inode, struct file *file)
+{
+        struct proc_mounts *p = file->private_data;
+        path_put(&p->root);
+        put_mnt_ns(p->ns);
+        return seq_release(inode, file);
+}
+
+static int mounts_open(struct inode *inode, struct file *file)
+{
+        return mounts_open_common(inode, file, show_vfsmnt);
+}
+
+static int mountinfo_open(struct inode *inode, struct file *file)
+{
+        return mounts_open_common(inode, file, show_mountinfo);
+}
+
+static int mountstats_open(struct inode *inode, struct file *file)
+{
+        return mounts_open_common(inode, file, show_vfsstat);
+}
+
+const struct file_operations proc_mounts_operations = {
+        .open           = mounts_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = mounts_release,
+        .poll           = mounts_poll,
+};
+
+const struct file_operations proc_mountinfo_operations = {
+        .open           = mountinfo_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = mounts_release,
+        .poll           = mounts_poll,
+};
+
+const struct file_operations proc_mountstats_operations = {
+        .open           = mountstats_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = mounts_release,
+};
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 3bdd21418432..b90c7967fcae 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -427,7 +427,6 @@ static struct inode *qnx4_alloc_inode(struct super_block *sb)
 static void qnx4_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(qnx4_inode_cachep, qnx4_i(inode));
 }
 
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 5b572c89e6c4..5ec59b20cf76 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -73,7 +73,6 @@
 #include <linux/security.h>
 #include <linux/kmod.h>
 #include <linux/namei.h>
-#include <linux/buffer_head.h>
 #include <linux/capability.h>
 #include <linux/quotaops.h>
 #include "../internal.h" /* ugh */
@@ -2199,7 +2198,7 @@ int dquot_quota_on(struct super_block *sb, int type, int format_id,
         if (error)
                 return error;
         /* Quota file not on the same filesystem? */
-        if (path->mnt->mnt_sb != sb)
+        if (path->dentry->d_sb != sb)
                 error = -EXDEV;
         else
                 error = vfs_load_quota_inode(path->dentry->d_inode, type,
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 35f4b0ecdeb3..7898cd688a00 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
-#include <linux/buffer_head.h>
 #include <linux/capability.h>
 #include <linux/quotaops.h>
 #include <linux/types.h>
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index 462ceb38fec6..aec766abe3af 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -52,7 +52,7 @@ static struct backing_dev_info ramfs_backing_dev_info = {
 };
 
 struct inode *ramfs_get_inode(struct super_block *sb,
-                                const struct inode *dir, int mode, dev_t dev)
+                                const struct inode *dir, umode_t mode, dev_t dev)
 {
         struct inode * inode = new_inode(sb);
 
@@ -92,7 +92,7 @@ struct inode *ramfs_get_inode(struct super_block *sb,
  */
 /* SMP-safe */
 static int
-ramfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+ramfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         struct inode * inode = ramfs_get_inode(dir->i_sb, dir, mode, dev);
         int error = -ENOSPC;
@@ -106,7 +106,7 @@ ramfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
         return error;
 }
 
-static int ramfs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+static int ramfs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
 {
         int retval = ramfs_mknod(dir, dentry, mode | S_IFDIR, 0);
         if (!retval)
@@ -114,7 +114,7 @@ static int ramfs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
         return retval;
 }
 
-static int ramfs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
+static int ramfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
 {
         return ramfs_mknod(dir, dentry, mode | S_IFREG, 0);
 }
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index d1aca1df4f92..a945cd265228 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -13,6 +13,7 @@
 #include <linux/reiserfs_fs_sb.h>
 #include <linux/reiserfs_fs_i.h>
 #include <linux/quotaops.h>
+#include <linux/seq_file.h>
 
 #define PREALLOCATION_SIZE 9
 
@@ -634,6 +635,96 @@ int reiserfs_parse_alloc_options(struct super_block *s, char *options)
         return 0;
 }
 
+static void print_sep(struct seq_file *seq, int *first)
+{
+        if (!*first)
+                seq_puts(seq, ":");
+        else
+                *first = 0;
+}
+
+void show_alloc_options(struct seq_file *seq, struct super_block *s)
+{
+        int first = 1;
+
+        if (SB_ALLOC_OPTS(s) == ((1 << _ALLOC_skip_busy) |
+                (1 << _ALLOC_dirid_groups) | (1 << _ALLOC_packing_groups)))
+                return;
+
+        seq_puts(seq, ",alloc=");
+
+        if (TEST_OPTION(concentrating_formatted_nodes, s)) {
+                print_sep(seq, &first);
+                if (REISERFS_SB(s)->s_alloc_options.border != 10) {
+                        seq_printf(seq, "concentrating_formatted_nodes=%d",
+                                100 / REISERFS_SB(s)->s_alloc_options.border);
+                } else
+                        seq_puts(seq, "concentrating_formatted_nodes");
+        }
+        if (TEST_OPTION(displacing_large_files, s)) {
+                print_sep(seq, &first);
+                if (REISERFS_SB(s)->s_alloc_options.large_file_size != 16) {
+                        seq_printf(seq, "displacing_large_files=%lu",
+                            REISERFS_SB(s)->s_alloc_options.large_file_size);
+                } else
+                        seq_puts(seq, "displacing_large_files");
+        }
+        if (TEST_OPTION(displacing_new_packing_localities, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "displacing_new_packing_localities");
+        }
+        if (TEST_OPTION(old_hashed_relocation, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "old_hashed_relocation");
+        }
+        if (TEST_OPTION(new_hashed_relocation, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "new_hashed_relocation");
+        }
+        if (TEST_OPTION(dirid_groups, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "dirid_groups");
+        }
+        if (TEST_OPTION(oid_groups, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "oid_groups");
+        }
+        if (TEST_OPTION(packing_groups, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "packing_groups");
+        }
+        if (TEST_OPTION(hashed_formatted_nodes, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "hashed_formatted_nodes");
+        }
+        if (TEST_OPTION(skip_busy, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "skip_busy");
+        }
+        if (TEST_OPTION(hundredth_slices, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "hundredth_slices");
+        }
+        if (TEST_OPTION(old_way, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "old_way");
+        }
+        if (TEST_OPTION(displace_based_on_dirid, s)) {
+                print_sep(seq, &first);
+                seq_puts(seq, "displace_based_on_dirid");
+        }
+        if (REISERFS_SB(s)->s_alloc_options.preallocmin != 0) {
+                print_sep(seq, &first);
+                seq_printf(seq, "preallocmin=%d",
+                                REISERFS_SB(s)->s_alloc_options.preallocmin);
+        }
+        if (REISERFS_SB(s)->s_alloc_options.preallocsize != 17) {
+                print_sep(seq, &first);
+                seq_printf(seq, "preallocsize=%d",
+                                REISERFS_SB(s)->s_alloc_options.preallocsize);
+        }
+}
+
 static inline void new_hashed_relocation(reiserfs_blocknr_hint_t * hint)
 {
         char *hash_in;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 950f13af0951..9e8cd5acd79c 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1766,7 +1766,7 @@ static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct i
    for the fresh inode.  This can only be done outside a transaction, so
    if we return non-zero, we also end the transaction.  */
 int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
-                       struct inode *dir, int mode, const char *symname,
+                       struct inode *dir, umode_t mode, const char *symname,
                        /* 0 for regular, EMTRY_DIR_SIZE for dirs,
                           strlen (symname) for symlinks) */
                        loff_t i_size, struct dentry *dentry,
diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
index 4e153051bc75..950e3d1b5c9e 100644
--- a/fs/reiserfs/ioctl.c
+++ b/fs/reiserfs/ioctl.c
@@ -55,7 +55,7 @@ long reiserfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                                 break;
                         }
 
-                        err = mnt_want_write(filp->f_path.mnt);
+                        err = mnt_want_write_file(filp);
                         if (err)
                                 break;
 
@@ -96,7 +96,7 @@ long reiserfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                         inode->i_ctime = CURRENT_TIME_SEC;
                         mark_inode_dirty(inode);
 setflags_out:
-                        mnt_drop_write(filp->f_path.mnt);
+                        mnt_drop_write_file(filp);
                         break;
                 }
         case REISERFS_IOC_GETVERSION:
@@ -107,7 +107,7 @@ setflags_out:
                         err = -EPERM;
                         break;
                 }
-                err = mnt_want_write(filp->f_path.mnt);
+                err = mnt_want_write_file(filp);
                 if (err)
                         break;
                 if (get_user(inode->i_generation, (int __user *)arg)) {
@@ -117,7 +117,7 @@ setflags_out:
                 inode->i_ctime = CURRENT_TIME_SEC;
                 mark_inode_dirty(inode);
 setversion_out:
-                mnt_drop_write(filp->f_path.mnt);
+                mnt_drop_write_file(filp);
                 break;
         default:
                 err = -ENOTTY;
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 80058e8ce361..146378865239 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -559,7 +559,7 @@ static int drop_new_inode(struct inode *inode)
 ** outside of a transaction, so we had to pull some bits of
 ** reiserfs_new_inode out into this func.
 */
-static int new_inode_init(struct inode *inode, struct inode *dir, int mode)
+static int new_inode_init(struct inode *inode, struct inode *dir, umode_t mode)
 {
         /* Make inode invalid - just in case we are going to drop it before
          * the initialization happens */
@@ -572,7 +572,7 @@ static int new_inode_init(struct inode *inode, struct inode *dir, int mode)
         return 0;
 }
 
-static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int reiserfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                            struct nameidata *nd)
 {
         int retval;
@@ -643,7 +643,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
         return retval;
 }
 
-static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
                           dev_t rdev)
 {
         int retval;
@@ -721,7 +721,7 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
         return retval;
 }
 
-static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int retval;
         struct inode *inode;
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 14363b96b6af..19c454e61b79 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -28,6 +28,7 @@
 #include <linux/mount.h>
 #include <linux/namei.h>
 #include <linux/crc32.h>
+#include <linux/seq_file.h>
 
 struct file_system_type reiserfs_fs_type;
 
@@ -61,6 +62,7 @@ static int is_any_reiserfs_magic_string(struct reiserfs_super_block *rs)
 
 static int reiserfs_remount(struct super_block *s, int *flags, char *data);
 static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf);
+void show_alloc_options(struct seq_file *seq, struct super_block *s);
 
 static int reiserfs_sync_fs(struct super_block *s, int wait)
 {
@@ -532,7 +534,6 @@ static struct inode *reiserfs_alloc_inode(struct super_block *sb)
 static void reiserfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(reiserfs_inode_cachep, REISERFS_I(inode));
 }
 
@@ -597,6 +598,82 @@ out:
         reiserfs_write_unlock_once(inode->i_sb, lock_depth);
 }
 
+static int reiserfs_show_options(struct seq_file *seq, struct dentry *root)
+{
+        struct super_block *s = root->d_sb;
+        struct reiserfs_journal *journal = SB_JOURNAL(s);
+        long opts = REISERFS_SB(s)->s_mount_opt;
+
+        if (opts & (1 << REISERFS_LARGETAIL))
+                seq_puts(seq, ",tails=on");
+        else if (!(opts & (1 << REISERFS_SMALLTAIL)))
+                seq_puts(seq, ",notail");
+        /* tails=small is default so we don't show it */
+
+        if (!(opts & (1 << REISERFS_BARRIER_FLUSH)))
+                seq_puts(seq, ",barrier=none");
+        /* barrier=flush is default so we don't show it */
+
+        if (opts & (1 << REISERFS_ERROR_CONTINUE))
+                seq_puts(seq, ",errors=continue");
+        else if (opts & (1 << REISERFS_ERROR_PANIC))
+                seq_puts(seq, ",errors=panic");
+        /* errors=ro is default so we don't show it */
+
+        if (opts & (1 << REISERFS_DATA_LOG))
+                seq_puts(seq, ",data=journal");
+        else if (opts & (1 << REISERFS_DATA_WRITEBACK))
+                seq_puts(seq, ",data=writeback");
+        /* data=ordered is default so we don't show it */
+
+        if (opts & (1 << REISERFS_ATTRS))
+                seq_puts(seq, ",attrs");
+
+        if (opts & (1 << REISERFS_XATTRS_USER))
+                seq_puts(seq, ",user_xattr");
+
+        if (opts & (1 << REISERFS_EXPOSE_PRIVROOT))
+                seq_puts(seq, ",expose_privroot");
+
+        if (opts & (1 << REISERFS_POSIXACL))
+                seq_puts(seq, ",acl");
+
+        if (REISERFS_SB(s)->s_jdev)
+                seq_printf(seq, ",jdev=%s", REISERFS_SB(s)->s_jdev);
+
+        if (journal->j_max_commit_age != journal->j_default_max_commit_age)
+                seq_printf(seq, ",commit=%d", journal->j_max_commit_age);
+
+#ifdef CONFIG_QUOTA
+        if (REISERFS_SB(s)->s_qf_names[USRQUOTA])
+                seq_printf(seq, ",usrjquota=%s", REISERFS_SB(s)->s_qf_names[USRQUOTA]);
+        else if (opts & (1 << REISERFS_USRQUOTA))
+                seq_puts(seq, ",usrquota");
+        if (REISERFS_SB(s)->s_qf_names[GRPQUOTA])
+                seq_printf(seq, ",grpjquota=%s", REISERFS_SB(s)->s_qf_names[GRPQUOTA]);
+        else if (opts & (1 << REISERFS_GRPQUOTA))
+                seq_puts(seq, ",grpquota");
+        if (REISERFS_SB(s)->s_jquota_fmt) {
+                if (REISERFS_SB(s)->s_jquota_fmt == QFMT_VFS_OLD)
+                        seq_puts(seq, ",jqfmt=vfsold");
+                else if (REISERFS_SB(s)->s_jquota_fmt == QFMT_VFS_V0)
+                        seq_puts(seq, ",jqfmt=vfsv0");
+        }
+#endif
+
+        /* Block allocator options */
+        if (opts & (1 << REISERFS_NO_BORDER))
+                seq_puts(seq, ",block-allocator=noborder");
+        if (opts & (1 << REISERFS_NO_UNHASHED_RELOCATION))
+                seq_puts(seq, ",block-allocator=no_unhashed_relocation");
+        if (opts & (1 << REISERFS_HASHED_RELOCATION))
+                seq_puts(seq, ",block-allocator=hashed_relocation");
+        if (opts & (1 << REISERFS_TEST4))
+                seq_puts(seq, ",block-allocator=test4");
+        show_alloc_options(seq, s);
+        return 0;
+}
+
 #ifdef CONFIG_QUOTA
 static ssize_t reiserfs_quota_write(struct super_block *, int, const char *,
                                     size_t, loff_t);
@@ -617,7 +694,7 @@ static const struct super_operations reiserfs_sops = {
         .unfreeze_fs = reiserfs_unfreeze,
         .statfs = reiserfs_statfs,
         .remount_fs = reiserfs_remount,
-        .show_options = generic_show_options,
+        .show_options = reiserfs_show_options,
 #ifdef CONFIG_QUOTA
         .quota_read = reiserfs_quota_read,
         .quota_write = reiserfs_quota_write,
@@ -915,9 +992,9 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                 {"jdev",.arg_required = 'j',.values = NULL},
                 {"nolargeio",.arg_required = 'w',.values = NULL},
                 {"commit",.arg_required = 'c',.values = NULL},
-                {"usrquota",.setmask = 1 << REISERFS_QUOTA},
-                {"grpquota",.setmask = 1 << REISERFS_QUOTA},
-                {"noquota",.clrmask = 1 << REISERFS_QUOTA},
+                {"usrquota",.setmask = 1 << REISERFS_USRQUOTA},
+                {"grpquota",.setmask = 1 << REISERFS_GRPQUOTA},
+                {"noquota",.clrmask = 1 << REISERFS_USRQUOTA | 1 << REISERFS_GRPQUOTA},
                 {"errors",.arg_required = 'e',.values = error_actions},
                 {"usrjquota",.arg_required =
                  'u' | (1 << REISERFS_OPT_ALLOWEMPTY),.values = NULL},
@@ -1031,12 +1108,19 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                                         return 0;
                                 }
                                 strcpy(qf_names[qtype], arg);
-                                *mount_options |= 1 << REISERFS_QUOTA;
+                                if (qtype == USRQUOTA)
+                                        *mount_options |= 1 << REISERFS_USRQUOTA;
+                                else
+                                        *mount_options |= 1 << REISERFS_GRPQUOTA;
                         } else {
                                 if (qf_names[qtype] !=
                                     REISERFS_SB(s)->s_qf_names[qtype])
                                         kfree(qf_names[qtype]);
                                 qf_names[qtype] = NULL;
+                                if (qtype == USRQUOTA)
+                                        *mount_options &= ~(1 << REISERFS_USRQUOTA);
+                                else
+                                        *mount_options &= ~(1 << REISERFS_GRPQUOTA);
                         }
                 }
                 if (c == 'f') {
@@ -1075,9 +1159,10 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                                  "journaled quota format not specified.");
                 return 0;
         }
-        /* This checking is not precise wrt the quota type but for our purposes it is sufficient */
-        if (!(*mount_options & (1 << REISERFS_QUOTA))
-            && sb_any_quota_loaded(s)) {
+        if ((!(*mount_options & (1 << REISERFS_USRQUOTA)) &&
+               sb_has_quota_loaded(s, USRQUOTA)) ||
+            (!(*mount_options & (1 << REISERFS_GRPQUOTA)) &&
+               sb_has_quota_loaded(s, GRPQUOTA))) {
                 reiserfs_warning(s, "super-6516", "quota options must "
                                  "be present when quota is turned on.");
                 return 0;
@@ -1225,7 +1310,8 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
         safe_mask |= 1 << REISERFS_ERROR_RO;
         safe_mask |= 1 << REISERFS_ERROR_CONTINUE;
         safe_mask |= 1 << REISERFS_ERROR_PANIC;
-        safe_mask |= 1 << REISERFS_QUOTA;
+        safe_mask |= 1 << REISERFS_USRQUOTA;
+        safe_mask |= 1 << REISERFS_GRPQUOTA;
 
         /* Update the bitmask, taking care to keep
          * the bits we're not allowed to change here */
@@ -1672,6 +1758,14 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
              &commit_max_age, qf_names, &qfmt) == 0) {
                 goto error;
         }
+        if (jdev_name && jdev_name[0]) {
+                REISERFS_SB(s)->s_jdev = kstrdup(jdev_name, GFP_KERNEL);
+                if (!REISERFS_SB(s)->s_jdev) {
+                        SWARN(silent, s, "", "Cannot allocate memory for "
+                                "journal device name");
+                        goto error;
+                }
+        }
 #ifdef CONFIG_QUOTA
         handle_quota_files(s, qf_names, &qfmt);
 #endif
@@ -2054,12 +2148,13 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
         int err;
         struct inode *inode;
         struct reiserfs_transaction_handle th;
+        int opt = type == USRQUOTA ? REISERFS_USRQUOTA : REISERFS_GRPQUOTA;
 
-        if (!(REISERFS_SB(sb)->s_mount_opt & (1 << REISERFS_QUOTA)))
+        if (!(REISERFS_SB(sb)->s_mount_opt & (1 << opt)))
                 return -EINVAL;
 
         /* Quotafile not on the same filesystem? */
-        if (path->mnt->mnt_sb != sb) {
+        if (path->dentry->d_sb != sb) {
                 err = -EXDEV;
                 goto out;
         }
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 6bc346c160e7..c24deda8a8bc 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -66,7 +66,7 @@ static int xattr_create(struct inode *dir, struct dentry *dentry, int mode)
 }
 #endif
 
-static int xattr_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int xattr_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         BUG_ON(!mutex_is_locked(&dir->i_mutex));
         return dir->i_op->mkdir(dir, dentry, mode);
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 8b4089f30408..bb36ab74eb45 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -403,7 +403,6 @@ static struct inode *romfs_alloc_inode(struct super_block *sb)
 static void romfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(romfs_inode_cachep, ROMFS_I(inode));
 }
 
diff --git a/fs/seq_file.c b/fs/seq_file.c
index dba43c3ea3af..4023d6be939b 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -397,7 +397,7 @@ EXPORT_SYMBOL(seq_printf);
  *      Returns pointer past last written character in @s, or NULL in case of
  *      failure.
  */
-char *mangle_path(char *s, char *p, char *esc)
+char *mangle_path(char *s, const char *p, const char *esc)
 {
         while (s <= p) {
                 char c = *p++;
@@ -427,7 +427,7 @@ EXPORT_SYMBOL(mangle_path);
  * return the absolute path of 'path', as represented by the
  * dentry / mnt pair in the path parameter.
  */
-int seq_path(struct seq_file *m, struct path *path, char *esc)
+int seq_path(struct seq_file *m, const struct path *path, const char *esc)
 {
         char *buf;
         size_t size = seq_get_buf(m, &buf);
@@ -450,8 +450,8 @@ EXPORT_SYMBOL(seq_path);
 /*
  * Same as seq_path, but relative to supplied root.
  */
-int seq_path_root(struct seq_file *m, struct path *path, struct path *root,
-                  char *esc)
+int seq_path_root(struct seq_file *m, const struct path *path,
+                  const struct path *root, const char *esc)
 {
         char *buf;
         size_t size = seq_get_buf(m, &buf);
@@ -480,7 +480,7 @@ int seq_path_root(struct seq_file *m, struct path *path, struct path *root,
 /*
  * returns the path of the 'dentry' from the root of its filesystem.
  */
-int seq_dentry(struct seq_file *m, struct dentry *dentry, char *esc)
+int seq_dentry(struct seq_file *m, struct dentry *dentry, const char *esc)
 {
         char *buf;
         size_t size = seq_get_buf(m, &buf);
diff --git a/fs/splice.c b/fs/splice.c
index fa2defa8afcf..1ec0493266b3 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -25,7 +25,6 @@
 #include <linux/mm_inline.h>
 #include <linux/swap.h>
 #include <linux/writeback.h>
-#include <linux/buffer_head.h>
 #include <linux/module.h>
 #include <linux/syscalls.h>
 #include <linux/uio.h>
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 2da1715452ac..d0858c2d9a47 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -464,7 +464,6 @@ static struct inode *squashfs_alloc_inode(struct super_block *sb)
 static void squashfs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(squashfs_inode_cachep, squashfs_i(inode));
 }
 
diff --git a/fs/statfs.c b/fs/statfs.c
index 9cf04a118965..2aa6a22e0be2 100644
--- a/fs/statfs.c
+++ b/fs/statfs.c
@@ -7,6 +7,7 @@
 #include <linux/statfs.h>
 #include <linux/security.h>
 #include <linux/uaccess.h>
+#include "internal.h"
 
 static int flags_by_mnt(int mnt_flags)
 {
@@ -45,7 +46,7 @@ static int calculate_f_flags(struct vfsmount *mnt)
                 flags_by_sb(mnt->mnt_sb->s_flags);
 }
 
-int statfs_by_dentry(struct dentry *dentry, struct kstatfs *buf)
+static int statfs_by_dentry(struct dentry *dentry, struct kstatfs *buf)
 {
         int retval;
 
@@ -205,19 +206,23 @@ SYSCALL_DEFINE3(fstatfs64, unsigned int, fd, size_t, sz, struct statfs64 __user
         return error;
 }
 
-SYSCALL_DEFINE2(ustat, unsigned, dev, struct ustat __user *, ubuf)
+int vfs_ustat(dev_t dev, struct kstatfs *sbuf)
 {
-        struct super_block *s;
-        struct ustat tmp;
-        struct kstatfs sbuf;
+        struct super_block *s = user_get_super(dev);
         int err;
-
-        s = user_get_super(new_decode_dev(dev));
         if (!s)
                 return -EINVAL;
 
-        err = statfs_by_dentry(s->s_root, &sbuf);
+        err = statfs_by_dentry(s->s_root, sbuf);
         drop_super(s);
+        return err;
+}
+
+SYSCALL_DEFINE2(ustat, unsigned, dev, struct ustat __user *, ubuf)
+{
+        struct ustat tmp;
+        struct kstatfs sbuf;
+        int err = vfs_ustat(new_decode_dev(dev), &sbuf);
         if (err)
                 return err;
 
diff --git a/fs/super.c b/fs/super.c
index afd0f1ad45e0..de41e1e46f09 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -136,12 +136,13 @@ static struct super_block *alloc_super(struct file_system_type *type)
                 INIT_LIST_HEAD(&s->s_files);
 #endif
                 s->s_bdi = &default_backing_dev_info;
-                INIT_LIST_HEAD(&s->s_instances);
+                INIT_HLIST_NODE(&s->s_instances);
                 INIT_HLIST_BL_HEAD(&s->s_anon);
                 INIT_LIST_HEAD(&s->s_inodes);
                 INIT_LIST_HEAD(&s->s_dentry_lru);
                 INIT_LIST_HEAD(&s->s_inode_lru);
                 spin_lock_init(&s->s_inode_lru_lock);
+                INIT_LIST_HEAD(&s->s_mounts);
                 init_rwsem(&s->s_umount);
                 mutex_init(&s->s_lock);
                 lockdep_set_class(&s->s_umount, &type->s_umount_key);
@@ -200,6 +201,7 @@ static inline void destroy_super(struct super_block *s)
         free_percpu(s->s_files);
 #endif
         security_sb_free(s);
+        WARN_ON(!list_empty(&s->s_mounts));
         kfree(s->s_subtype);
         kfree(s->s_options);
         kfree(s);
@@ -210,7 +212,7 @@ static inline void destroy_super(struct super_block *s)
 /*
  * Drop a superblock's refcount.  The caller must hold sb_lock.
  */
-void __put_super(struct super_block *sb)
+static void __put_super(struct super_block *sb)
 {
         if (!--sb->s_count) {
                 list_del_init(&sb->s_list);
@@ -225,7 +227,7 @@ void __put_super(struct super_block *sb)
  *      Drops a temporary reference, frees superblock if there's no
  *      references left.
  */
-void put_super(struct super_block *sb)
+static void put_super(struct super_block *sb)
 {
         spin_lock(&sb_lock);
         __put_super(sb);
@@ -328,7 +330,7 @@ static int grab_super(struct super_block *s) __releases(sb_lock)
 bool grab_super_passive(struct super_block *sb)
 {
         spin_lock(&sb_lock);
-        if (list_empty(&sb->s_instances)) {
+        if (hlist_unhashed(&sb->s_instances)) {
                 spin_unlock(&sb_lock);
                 return false;
         }
@@ -337,7 +339,7 @@ bool grab_super_passive(struct super_block *sb)
         spin_unlock(&sb_lock);
 
         if (down_read_trylock(&sb->s_umount)) {
-                if (sb->s_root)
+                if (sb->s_root && (sb->s_flags & MS_BORN))
                         return true;
                 up_read(&sb->s_umount);
         }
@@ -400,7 +402,7 @@ void generic_shutdown_super(struct super_block *sb)
         }
         spin_lock(&sb_lock);
         /* should be initialized for __put_super_and_need_restart() */
-        list_del_init(&sb->s_instances);
+        hlist_del_init(&sb->s_instances);
         spin_unlock(&sb_lock);
         up_write(&sb->s_umount);
 }
@@ -420,13 +422,14 @@ struct super_block *sget(struct file_system_type *type,
                         void *data)
 {
         struct super_block *s = NULL;
+        struct hlist_node *node;
         struct super_block *old;
         int err;
 
 retry:
         spin_lock(&sb_lock);
         if (test) {
-                list_for_each_entry(old, &type->fs_supers, s_instances) {
+                hlist_for_each_entry(old, node, &type->fs_supers, s_instances) {
                         if (!test(old, data))
                                 continue;
                         if (!grab_super(old))
@@ -462,7 +465,7 @@ retry:
         s->s_type = type;
         strlcpy(s->s_id, type->name, sizeof(s->s_id));
         list_add_tail(&s->s_list, &super_blocks);
-        list_add(&s->s_instances, &type->fs_supers);
+        hlist_add_head(&s->s_instances, &type->fs_supers);
         spin_unlock(&sb_lock);
         get_filesystem(type);
         register_shrinker(&s->s_shrink);
@@ -497,14 +500,14 @@ void sync_supers(void)
 
         spin_lock(&sb_lock);
         list_for_each_entry(sb, &super_blocks, s_list) {
-                if (list_empty(&sb->s_instances))
+                if (hlist_unhashed(&sb->s_instances))
                         continue;
                 if (sb->s_op->write_super && sb->s_dirt) {
                         sb->s_count++;
                         spin_unlock(&sb_lock);
 
                         down_read(&sb->s_umount);
-                        if (sb->s_root && sb->s_dirt)
+                        if (sb->s_root && sb->s_dirt && (sb->s_flags & MS_BORN))
                                 sb->s_op->write_super(sb);
                         up_read(&sb->s_umount);
 
@@ -533,13 +536,13 @@ void iterate_supers(void (*f)(struct super_block *, void *), void *arg)
 
         spin_lock(&sb_lock);
         list_for_each_entry(sb, &super_blocks, s_list) {
-                if (list_empty(&sb->s_instances))
+                if (hlist_unhashed(&sb->s_instances))
                         continue;
                 sb->s_count++;
                 spin_unlock(&sb_lock);
 
                 down_read(&sb->s_umount);
-                if (sb->s_root)
+                if (sb->s_root && (sb->s_flags & MS_BORN))
                         f(sb, arg);
                 up_read(&sb->s_umount);
 
@@ -566,14 +569,15 @@ void iterate_supers_type(struct file_system_type *type,
         void (*f)(struct super_block *, void *), void *arg)
 {
         struct super_block *sb, *p = NULL;
+        struct hlist_node *node;
 
         spin_lock(&sb_lock);
-        list_for_each_entry(sb, &type->fs_supers, s_instances) {
+        hlist_for_each_entry(sb, node, &type->fs_supers, s_instances) {
                 sb->s_count++;
                 spin_unlock(&sb_lock);
 
                 down_read(&sb->s_umount);
-                if (sb->s_root)
+                if (sb->s_root && (sb->s_flags & MS_BORN))
                         f(sb, arg);
                 up_read(&sb->s_umount);
 
@@ -607,14 +611,14 @@ struct super_block *get_super(struct block_device *bdev)
         spin_lock(&sb_lock);
 rescan:
         list_for_each_entry(sb, &super_blocks, s_list) {
-                if (list_empty(&sb->s_instances))
+                if (hlist_unhashed(&sb->s_instances))
                         continue;
                 if (sb->s_bdev == bdev) {
                         sb->s_count++;
                         spin_unlock(&sb_lock);
                         down_read(&sb->s_umount);
                         /* still alive? */
-                        if (sb->s_root)
+                        if (sb->s_root && (sb->s_flags & MS_BORN))
                                 return sb;
                         up_read(&sb->s_umount);
                         /* nope, got unmounted */
@@ -647,7 +651,7 @@ struct super_block *get_active_super(struct block_device *bdev)
 restart:
         spin_lock(&sb_lock);
         list_for_each_entry(sb, &super_blocks, s_list) {
-                if (list_empty(&sb->s_instances))
+                if (hlist_unhashed(&sb->s_instances))
                         continue;
                 if (sb->s_bdev == bdev) {
                         if (grab_super(sb)) /* drops sb_lock */
@@ -667,14 +671,14 @@ struct super_block *user_get_super(dev_t dev)
         spin_lock(&sb_lock);
 rescan:
         list_for_each_entry(sb, &super_blocks, s_list) {
-                if (list_empty(&sb->s_instances))
+                if (hlist_unhashed(&sb->s_instances))
                         continue;
                 if (sb->s_dev ==  dev) {
                         sb->s_count++;
                         spin_unlock(&sb_lock);
                         down_read(&sb->s_umount);
                         /* still alive? */
-                        if (sb->s_root)
+                        if (sb->s_root && (sb->s_flags & MS_BORN))
                                 return sb;
                         up_read(&sb->s_umount);
                         /* nope, got unmounted */
@@ -719,23 +723,29 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
         /* If we are remounting RDONLY and current sb is read/write,
            make sure there are no rw files opened */
         if (remount_ro) {
-                if (force)
+                if (force) {
                         mark_files_ro(sb);
-                else if (!fs_may_remount_ro(sb))
-                        return -EBUSY;
+                } else {
+                        retval = sb_prepare_remount_readonly(sb);
+                        if (retval)
+                                return retval;
+                }
         }
 
         if (sb->s_op->remount_fs) {
                 retval = sb->s_op->remount_fs(sb, &flags, data);
                 if (retval) {
                         if (!force)
-                                return retval;
+                                goto cancel_readonly;
                         /* If forced remount, go ahead despite any errors */
                         WARN(1, "forced remount of a %s fs returned %i\n",
                              sb->s_type->name, retval);
                 }
         }
         sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);
+        /* Needs to be ordered wrt mnt_is_readonly() */
+        smp_wmb();
+        sb->s_readonly_remount = 0;
 
         /*
          * Some filesystems modify their metadata via some other path than the
@@ -748,6 +758,10 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
         if (remount_ro && sb->s_bdev)
                 invalidate_bdev(sb->s_bdev);
         return 0;
+
+cancel_readonly:
+        sb->s_readonly_remount = 0;
+        return retval;
 }
 
 static void do_emergency_remount(struct work_struct *work)
@@ -756,12 +770,13 @@ static void do_emergency_remount(struct work_struct *work)
 
         spin_lock(&sb_lock);
         list_for_each_entry(sb, &super_blocks, s_list) {
-                if (list_empty(&sb->s_instances))
+                if (hlist_unhashed(&sb->s_instances))
                         continue;
                 sb->s_count++;
                 spin_unlock(&sb_lock);
                 down_write(&sb->s_umount);
-                if (sb->s_root && sb->s_bdev && !(sb->s_flags & MS_RDONLY)) {
+                if (sb->s_root && sb->s_bdev && (sb->s_flags & MS_BORN) &&
+                    !(sb->s_flags & MS_RDONLY)) {
                         /*
                          * What lock protects sb->s_flags??
                          */
@@ -1144,6 +1159,11 @@ int freeze_super(struct super_block *sb)
                 return -EBUSY;
         }
 
+        if (!(sb->s_flags & MS_BORN)) {
+                up_write(&sb->s_umount);
+                return 0;       /* sic - it's "nothing to do" */
+        }
+
         if (sb->s_flags & MS_RDONLY) {
                 sb->s_frozen = SB_FREEZE_TRANS;
                 smp_wmb();
diff --git a/fs/sync.c b/fs/sync.c
index 101b8ef901d7..f3501ef39235 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -14,7 +14,6 @@
 #include <linux/linkage.h>
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
-#include <linux/buffer_head.h>
 #include <linux/backing-dev.h>
 #include "internal.h"
 
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index d4e6080b4b20..62f4fb37789e 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -518,7 +518,7 @@ out:
 }
 
 int sysfs_add_file_mode(struct sysfs_dirent *dir_sd,
-                        const struct attribute *attr, int type, mode_t amode)
+                        const struct attribute *attr, int type, umode_t amode)
 {
         umode_t mode = (amode & S_IALLUGO) | S_IFREG;
         struct sysfs_addrm_cxt acxt;
@@ -618,7 +618,7 @@ EXPORT_SYMBOL_GPL(sysfs_add_file_to_group);
  *
  */
 int sysfs_chmod_file(struct kobject *kobj, const struct attribute *attr,
-                     mode_t mode)
+                     umode_t mode)
 {
         struct sysfs_dirent *sd;
         struct iattr newattrs;
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 194414f8298c..dd1701caecc9 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -33,7 +33,7 @@ static int create_files(struct sysfs_dirent *dir_sd, struct kobject *kobj,
         int error = 0, i;
 
         for (i = 0, attr = grp->attrs; *attr && !error; i++, attr++) {
-                mode_t mode = 0;
+                umode_t mode = 0;
 
                 /* in update mode, we're changing the permissions or
                  * visibility.  Do this by first removing then
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index c81b22f3ace1..4a802b4a9056 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -187,7 +187,7 @@ out:
         return error;
 }
 
-static inline void set_default_inode_attr(struct inode * inode, mode_t mode)
+static inline void set_default_inode_attr(struct inode * inode, umode_t mode)
 {
         inode->i_mode = mode;
         inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index ce29e28b766d..7484a36ee678 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -79,7 +79,7 @@ struct sysfs_dirent {
         };
 
         unsigned int            s_flags;
-        unsigned short          s_mode;
+        umode_t                 s_mode;
         ino_t                   s_ino;
         struct sysfs_inode_attrs *s_iattr;
 };
@@ -229,7 +229,7 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd,
                    const struct attribute *attr, int type);
 
 int sysfs_add_file_mode(struct sysfs_dirent *dir_sd,
-                        const struct attribute *attr, int type, mode_t amode);
+                        const struct attribute *attr, int type, umode_t amode);
 /*
  * bin.c
  */
diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c
index 0c96c98bd1db..8233b02eccae 100644
--- a/fs/sysv/ialloc.c
+++ b/fs/sysv/ialloc.c
@@ -132,7 +132,7 @@ void sysv_free_inode(struct inode * inode)
         brelse(bh);
 }
 
-struct inode * sysv_new_inode(const struct inode * dir, mode_t mode)
+struct inode * sysv_new_inode(const struct inode * dir, umode_t mode)
 {
         struct super_block *sb = dir->i_sb;
         struct sysv_sb_info *sbi = SYSV_SB(sb);
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 25ffb3e9a3f8..3da5ce25faf0 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -336,7 +336,6 @@ static struct inode *sysv_alloc_inode(struct super_block *sb)
 static void sysv_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(sysv_inode_cachep, SYSV_I(inode));
 }
 
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index fa8d43c92bb8..90b54b438789 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -442,7 +442,7 @@ static unsigned sysv_nblocks(struct super_block *s, loff_t size)
 
 int sysv_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 {
-        struct super_block *s = mnt->mnt_sb;
+        struct super_block *s = dentry->d_sb;
         generic_fillattr(dentry->d_inode, stat);
         stat->blocks = (s->s_blocksize / 512) * sysv_nblocks(s, stat->size);
         stat->blksize = s->s_blocksize;
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index e474fbcf8bde..b217797e621b 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -61,7 +61,7 @@ static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry, st
         return NULL;
 }
 
-static int sysv_mknod(struct inode * dir, struct dentry * dentry, int mode, dev_t rdev)
+static int sysv_mknod(struct inode * dir, struct dentry * dentry, umode_t mode, dev_t rdev)
 {
         struct inode * inode;
         int err;
@@ -80,7 +80,7 @@ static int sysv_mknod(struct inode * dir, struct dentry * dentry, int mode, dev_
         return err;
 }
 
-static int sysv_create(struct inode * dir, struct dentry * dentry, int mode, struct nameidata *nd)
+static int sysv_create(struct inode * dir, struct dentry * dentry, umode_t mode, struct nameidata *nd)
 {
         return sysv_mknod(dir, dentry, mode, 0);
 }
@@ -131,7 +131,7 @@ static int sysv_link(struct dentry * old_dentry, struct inode * dir,
         return add_nondir(dentry, inode);
 }
 
-static int sysv_mkdir(struct inode * dir, struct dentry *dentry, int mode)
+static int sysv_mkdir(struct inode * dir, struct dentry *dentry, umode_t mode)
 {
         struct inode * inode;
         int err = -EMLINK;
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index bb55cdb394bf..0e4b821c5691 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -125,7 +125,7 @@ static inline void dirty_sb(struct super_block *sb)
 /* ialloc.c */
 extern struct sysv_inode *sysv_raw_inode(struct super_block *, unsigned,
                         struct buffer_head **);
-extern struct inode * sysv_new_inode(const struct inode *, mode_t);
+extern struct inode * sysv_new_inode(const struct inode *, umode_t);
 extern void sysv_free_inode(struct inode *);
 extern unsigned long sysv_count_free_inodes(struct super_block *);
 
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 683492043317..d6fe1c79f18b 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -56,7 +56,7 @@
  *
  * This function returns the inherited flags.
  */
-static int inherit_flags(const struct inode *dir, int mode)
+static int inherit_flags(const struct inode *dir, umode_t mode)
 {
         int flags;
         const struct ubifs_inode *ui = ubifs_inode(dir);
@@ -86,7 +86,7 @@ static int inherit_flags(const struct inode *dir, int mode)
  * case of failure.
  */
 struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
-                              int mode)
+                              umode_t mode)
 {
         struct inode *inode;
         struct ubifs_inode *ui;
@@ -253,7 +253,7 @@ out:
         return ERR_PTR(err);
 }
 
-static int ubifs_create(struct inode *dir, struct dentry *dentry, int mode,
+static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                         struct nameidata *nd)
 {
         struct inode *inode;
@@ -268,7 +268,7 @@ static int ubifs_create(struct inode *dir, struct dentry *dentry, int mode,
          * parent directory inode.
          */
 
-        dbg_gen("dent '%.*s', mode %#x in dir ino %lu",
+        dbg_gen("dent '%.*s', mode %#hx in dir ino %lu",
                 dentry->d_name.len, dentry->d_name.name, mode, dir->i_ino);
 
         err = ubifs_budget_space(c, &req);
@@ -712,7 +712,7 @@ out_cancel:
         return err;
 }
 
-static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode *inode;
         struct ubifs_inode *dir_ui = ubifs_inode(dir);
@@ -725,7 +725,7 @@ static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
          * directory inode.
          */
 
-        dbg_gen("dent '%.*s', mode %#x in dir ino %lu",
+        dbg_gen("dent '%.*s', mode %#hx in dir ino %lu",
                 dentry->d_name.len, dentry->d_name.name, mode, dir->i_ino);
 
         err = ubifs_budget_space(c, &req);
@@ -769,7 +769,7 @@ out_budg:
 }
 
 static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
-                       int mode, dev_t rdev)
+                       umode_t mode, dev_t rdev)
 {
         struct inode *inode;
         struct ubifs_inode *ui;
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index 548acf494afd..1a7e2d8bdbe9 100644
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -173,12 +173,12 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                  * Make sure the file-system is read-write and make sure it
                  * will not become read-only while we are changing the flags.
                  */
-                err = mnt_want_write(file->f_path.mnt);
+                err = mnt_want_write_file(file);
                 if (err)
                         return err;
                 dbg_gen("set flags: %#x, i_flags %#x", flags, inode->i_flags);
                 err = setflags(inode, flags);
-                mnt_drop_write(file->f_path.mnt);
+                mnt_drop_write_file(file);
                 return err;
         }
 
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index ae0e76bb6ebf..63765d58445b 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -276,7 +276,6 @@ static void ubifs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
         struct ubifs_inode *ui = ubifs_inode(inode);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ubifs_inode_slab, ui);
 }
 
@@ -420,9 +419,9 @@ static int ubifs_statfs(struct dentry *dentry, struct kstatfs *buf)
         return 0;
 }
 
-static int ubifs_show_options(struct seq_file *s, struct vfsmount *mnt)
+static int ubifs_show_options(struct seq_file *s, struct dentry *root)
 {
-        struct ubifs_info *c = mnt->mnt_sb->s_fs_info;
+        struct ubifs_info *c = root->d_sb->s_fs_info;
 
         if (c->mount_opts.unmount_mode == 2)
                 seq_printf(s, ",fast_unmount");
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 27f22551f805..12e94774aa88 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1734,7 +1734,7 @@ int ubifs_setattr(struct dentry *dentry, struct iattr *attr);
 
 /* dir.c */
 struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
-                              int mode);
+                              umode_t mode);
 int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
                   struct kstat *stat);
 
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 6fb7e0adcda0..05ab48195be9 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -46,7 +46,7 @@ void udf_free_inode(struct inode *inode)
         udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
 }
 
-struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
+struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
 {
         struct super_block *sb = dir->i_sb;
         struct udf_sb_info *sbi = UDF_SB(sb);
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 4fd1d809738c..4598904be1bb 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -48,7 +48,7 @@ MODULE_LICENSE("GPL");
 
 #define EXTENT_MERGE_SIZE 5
 
-static mode_t udf_convert_permissions(struct fileEntry *);
+static umode_t udf_convert_permissions(struct fileEntry *);
 static int udf_update_inode(struct inode *, int);
 static void udf_fill_inode(struct inode *, struct buffer_head *);
 static int udf_sync_inode(struct inode *inode);
@@ -1452,9 +1452,9 @@ static int udf_alloc_i_data(struct inode *inode, size_t size)
         return 0;
 }
 
-static mode_t udf_convert_permissions(struct fileEntry *fe)
+static umode_t udf_convert_permissions(struct fileEntry *fe)
 {
-        mode_t mode;
+        umode_t mode;
         uint32_t permissions;
         uint32_t flags;
 
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 4639e137222f..08bf46edf9c4 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -552,7 +552,7 @@ static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
         return udf_write_fi(inode, cfi, fi, fibh, NULL, NULL);
 }
 
-static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
+static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                       struct nameidata *nd)
 {
         struct udf_fileident_bh fibh;
@@ -596,7 +596,7 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
         return 0;
 }
 
-static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
+static int udf_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
                      dev_t rdev)
 {
         struct inode *inode;
@@ -640,7 +640,7 @@ out:
         return err;
 }
 
-static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct inode *inode;
         struct udf_fileident_bh fibh;
diff --git a/fs/udf/super.c b/fs/udf/super.c
index e185253470df..0c33225647a0 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -89,7 +89,7 @@ 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 *);
+static int udf_show_options(struct seq_file *, struct dentry *);
 
 struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
 {
@@ -138,7 +138,6 @@ static struct inode *udf_alloc_inode(struct super_block *sb)
 static void udf_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(udf_inode_cachep, UDF_I(inode));
 }
 
@@ -196,11 +195,11 @@ struct udf_options {
         unsigned int fileset;
         unsigned int rootdir;
         unsigned int flags;
-        mode_t umask;
+        umode_t umask;
         gid_t gid;
         uid_t uid;
-        mode_t fmode;
-        mode_t dmode;
+        umode_t fmode;
+        umode_t dmode;
         struct nls_table *nls_map;
 };
 
@@ -250,9 +249,9 @@ static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count)
         return 0;
 }
 
-static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt)
+static int udf_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct super_block *sb = mnt->mnt_sb;
+        struct super_block *sb = root->d_sb;
         struct udf_sb_info *sbi = UDF_SB(sb);
 
         if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT))
@@ -280,11 +279,11 @@ static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt)
         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);
+                seq_printf(seq, ",umask=%ho", sbi->s_umask);
         if (sbi->s_fmode != UDF_INVALID_MODE)
-                seq_printf(seq, ",mode=%o", sbi->s_fmode);
+                seq_printf(seq, ",mode=%ho", sbi->s_fmode);
         if (sbi->s_dmode != UDF_INVALID_MODE)
-                seq_printf(seq, ",dmode=%o", sbi->s_dmode);
+                seq_printf(seq, ",dmode=%ho", sbi->s_dmode);
         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))
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 5142a82e3276..42ad69ac9576 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -50,7 +50,7 @@
 #define UDF_SPARABLE_MAP15              0x1522U
 #define UDF_METADATA_MAP25              0x2511U
 
-#define UDF_INVALID_MODE                ((mode_t)-1)
+#define UDF_INVALID_MODE                ((umode_t)-1)
 
 #pragma pack(1) /* XXX(hch): Why?  This file just defines in-core structures */
 
@@ -127,11 +127,11 @@ struct udf_sb_info {
         struct buffer_head      *s_lvid_bh;
 
         /* Default permissions */
-        mode_t                  s_umask;
+        umode_t                 s_umask;
         gid_t                   s_gid;
         uid_t                   s_uid;
-        mode_t                  s_fmode;
-        mode_t                  s_dmode;
+        umode_t                 s_fmode;
+        umode_t                 s_dmode;
         /* Lock protecting consistency of above permission settings */
         rwlock_t                s_cred_lock;
 
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index f34e6fc0cdaa..ebe10314e512 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -215,7 +215,7 @@ extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
 
 /* ialloc.c */
 extern void udf_free_inode(struct inode *);
-extern struct inode *udf_new_inode(struct inode *, int, int *);
+extern struct inode *udf_new_inode(struct inode *, umode_t, int *);
 
 /* truncate.c */
 extern void udf_truncate_tail_extent(struct inode *);
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 78a4c70d46b5..4ec5c1085a87 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -170,7 +170,7 @@ static void ufs2_init_inodes_chunk(struct super_block *sb,
  * For other inodes, search forward from the parent directory's block
  * group to find a free inode.
  */
-struct inode * ufs_new_inode(struct inode * dir, int mode)
+struct inode *ufs_new_inode(struct inode *dir, umode_t mode)
 {
         struct super_block * sb;
         struct ufs_sb_info * sbi;
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 879b13436fa4..9094e1d917be 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -583,7 +583,7 @@ static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
 {
         struct ufs_inode_info *ufsi = UFS_I(inode);
         struct super_block *sb = inode->i_sb;
-        mode_t mode;
+        umode_t mode;
 
         /*
          * Copy data to the in-core inode.
@@ -630,7 +630,7 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
 {
         struct ufs_inode_info *ufsi = UFS_I(inode);
         struct super_block *sb = inode->i_sb;
-        mode_t mode;
+        umode_t mode;
 
         UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
         /*
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index 639d49162241..38cac199edff 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -70,7 +70,7 @@ static struct dentry *ufs_lookup(struct inode * dir, struct dentry *dentry, stru
  * If the create succeeds, we fill in the inode information
  * with d_instantiate(). 
  */
-static int ufs_create (struct inode * dir, struct dentry * dentry, int mode,
+static int ufs_create (struct inode * dir, struct dentry * dentry, umode_t mode,
                 struct nameidata *nd)
 {
         struct inode *inode;
@@ -94,7 +94,7 @@ static int ufs_create (struct inode * dir, struct dentry * dentry, int mode,
         return err;
 }
 
-static int ufs_mknod (struct inode * dir, struct dentry *dentry, int mode, dev_t rdev)
+static int ufs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 {
         struct inode *inode;
         int err;
@@ -180,7 +180,7 @@ static int ufs_link (struct dentry * old_dentry, struct inode * dir,
         return error;
 }
 
-static int ufs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+static int ufs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
 {
         struct inode * inode;
         int err = -EMLINK;
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 3915ade6f9a8..5246ee3e5607 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1351,9 +1351,9 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
         return 0;
 }
 
-static int ufs_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int ufs_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb);
+        struct ufs_sb_info *sbi = UFS_SB(root->d_sb);
         unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE;
         const struct match_token *tp = tokens;
 
@@ -1425,7 +1425,6 @@ static struct inode *ufs_alloc_inode(struct super_block *sb)
 static void ufs_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(ufs_inode_cachep, UFS_I(inode));
 }
 
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index c26f2bcec264..528750b7e701 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -104,7 +104,7 @@ extern const struct address_space_operations ufs_aops;
 
 /* ialloc.c */
 extern void ufs_free_inode (struct inode *inode);
-extern struct inode * ufs_new_inode (struct inode *, int);
+extern struct inode * ufs_new_inode (struct inode *, umode_t);
 
 /* inode.c */
 extern struct inode *ufs_iget(struct super_block *, unsigned long);
diff --git a/fs/xattr.c b/fs/xattr.c
index 67583de8218c..82f43376c7cd 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -397,7 +397,7 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
         error = mnt_want_write_file(f);
         if (!error) {
                 error = setxattr(dentry, name, value, size, flags);
-                mnt_drop_write(f->f_path.mnt);
+                mnt_drop_write_file(f);
         }
         fput(f);
         return error;
@@ -624,7 +624,7 @@ SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
         error = mnt_want_write_file(f);
         if (!error) {
                 error = removexattr(dentry, name);
-                mnt_drop_write(f->f_path.mnt);
+                mnt_drop_write_file(f);
         }
         fput(f);
         return error;
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 169380e66057..dad1a31aa4fc 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -447,7 +447,7 @@ STATIC xfs_buf_t *			/* allocation group buffer */
 xfs_ialloc_ag_select(
         xfs_trans_t     *tp,            /* transaction pointer */
         xfs_ino_t       parent,         /* parent directory inode number */
-        mode_t          mode,           /* bits set to indicate file type */
+        umode_t         mode,           /* bits set to indicate file type */
         int             okalloc)        /* ok to allocate more space */
 {
         xfs_buf_t       *agbp;          /* allocation group header buffer */
@@ -640,7 +640,7 @@ int
 xfs_dialloc(
         xfs_trans_t     *tp,            /* transaction pointer */
         xfs_ino_t       parent,         /* parent inode (directory) */
-        mode_t          mode,           /* mode bits for new inode */
+        umode_t         mode,           /* mode bits for new inode */
         int             okalloc,        /* ok to allocate more space */
         xfs_buf_t       **IO_agbp,      /* in/out ag header's buffer */
         boolean_t       *alloc_done,    /* true if we needed to replenish
diff --git a/fs/xfs/xfs_ialloc.h b/fs/xfs/xfs_ialloc.h
index bb5385475e1f..666a037398d6 100644
--- a/fs/xfs/xfs_ialloc.h
+++ b/fs/xfs/xfs_ialloc.h
@@ -81,7 +81,7 @@ int					/* error */
 xfs_dialloc(
         struct xfs_trans *tp,           /* transaction pointer */
         xfs_ino_t       parent,         /* parent inode (directory) */
-        mode_t          mode,           /* mode bits for new inode */
+        umode_t         mode,           /* mode bits for new inode */
         int             okalloc,        /* ok to allocate more space */
         struct xfs_buf  **agbp,         /* buf for a.g. inode header */
         boolean_t       *alloc_done,    /* an allocation was done to replenish
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 0fa98b1c70ea..3960a066d7ff 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -107,7 +107,6 @@ xfs_inode_free_callback(
         struct inode            *inode = container_of(head, struct inode, i_rcu);
         struct xfs_inode        *ip = XFS_I(inode);
 
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_zone_free(xfs_inode_zone, ip);
 }
 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 755ee8164880..9dda7cc32848 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -961,7 +961,7 @@ int
 xfs_ialloc(
         xfs_trans_t     *tp,
         xfs_inode_t     *pip,
-        mode_t          mode,
+        umode_t         mode,
         xfs_nlink_t     nlink,
         xfs_dev_t       rdev,
         prid_t          prid,
@@ -1002,7 +1002,7 @@ xfs_ialloc(
                 return error;
         ASSERT(ip != NULL);
 
-        ip->i_d.di_mode = (__uint16_t)mode;
+        ip->i_d.di_mode = mode;
         ip->i_d.di_onlink = 0;
         ip->i_d.di_nlink = nlink;
         ASSERT(ip->i_d.di_nlink == nlink);
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index b4cd4739f98e..f0e6b151ba37 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -481,7 +481,7 @@ void		xfs_inode_free(struct xfs_inode *ip);
 /*
  * xfs_inode.c prototypes.
  */
-int             xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
+int             xfs_ialloc(struct xfs_trans *, xfs_inode_t *, umode_t,
                            xfs_nlink_t, xfs_dev_t, prid_t, int,
                            struct xfs_buf **, boolean_t *, xfs_inode_t **);
 
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index d99a90518909..76f3ca5cfc36 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -559,23 +559,23 @@ xfs_attrmulti_by_handle(
                                         ops[i].am_flags);
                         break;
                 case ATTR_OP_SET:
-                        ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
+                        ops[i].am_error = mnt_want_write_file(parfilp);
                         if (ops[i].am_error)
                                 break;
                         ops[i].am_error = xfs_attrmulti_attr_set(
                                         dentry->d_inode, attr_name,
                                         ops[i].am_attrvalue, ops[i].am_length,
                                         ops[i].am_flags);
-                        mnt_drop_write(parfilp->f_path.mnt);
+                        mnt_drop_write_file(parfilp);
                         break;
                 case ATTR_OP_REMOVE:
-                        ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
+                        ops[i].am_error = mnt_want_write_file(parfilp);
                         if (ops[i].am_error)
                                 break;
                         ops[i].am_error = xfs_attrmulti_attr_remove(
                                         dentry->d_inode, attr_name,
                                         ops[i].am_flags);
-                        mnt_drop_write(parfilp->f_path.mnt);
+                        mnt_drop_write_file(parfilp);
                         break;
                 default:
                         ops[i].am_error = EINVAL;
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index 54e623bfbb85..f9ccb7b7c043 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -454,23 +454,23 @@ xfs_compat_attrmulti_by_handle(
                                         &ops[i].am_length, ops[i].am_flags);
                         break;
                 case ATTR_OP_SET:
-                        ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
+                        ops[i].am_error = mnt_want_write_file(parfilp);
                         if (ops[i].am_error)
                                 break;
                         ops[i].am_error = xfs_attrmulti_attr_set(
                                         dentry->d_inode, attr_name,
                                         compat_ptr(ops[i].am_attrvalue),
                                         ops[i].am_length, ops[i].am_flags);
-                        mnt_drop_write(parfilp->f_path.mnt);
+                        mnt_drop_write_file(parfilp);
                         break;
                 case ATTR_OP_REMOVE:
-                        ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
+                        ops[i].am_error = mnt_want_write_file(parfilp);
                         if (ops[i].am_error)
                                 break;
                         ops[i].am_error = xfs_attrmulti_attr_remove(
                                         dentry->d_inode, attr_name,
                                         ops[i].am_flags);
-                        mnt_drop_write(parfilp->f_path.mnt);
+                        mnt_drop_write_file(parfilp);
                         break;
                 default:
                         ops[i].am_error = EINVAL;
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 23ce927973a4..f9babd179223 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -168,7 +168,7 @@ STATIC int
 xfs_vn_mknod(
         struct inode    *dir,
         struct dentry   *dentry,
-        int             mode,
+        umode_t         mode,
         dev_t           rdev)
 {
         struct inode    *inode;
@@ -231,7 +231,7 @@ STATIC int
 xfs_vn_create(
         struct inode    *dir,
         struct dentry   *dentry,
-        int             mode,
+        umode_t         mode,
         struct nameidata *nd)
 {
         return xfs_vn_mknod(dir, dentry, mode, 0);
@@ -241,7 +241,7 @@ STATIC int
 xfs_vn_mkdir(
         struct inode    *dir,
         struct dentry   *dentry,
-        int             mode)
+        umode_t         mode)
 {
         return xfs_vn_mknod(dir, dentry, mode|S_IFDIR, 0);
 }
@@ -366,7 +366,7 @@ xfs_vn_symlink(
         struct xfs_inode *cip = NULL;
         struct xfs_name name;
         int             error;
-        mode_t          mode;
+        umode_t         mode;
 
         mode = S_IFLNK |
                 (irix_symlink_mode ? 0777 & ~current_umask() : S_IRWXUGO);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 8a899496fd5f..7b7669507ee3 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1238,9 +1238,9 @@ xfs_fs_unfreeze(
 STATIC int
 xfs_fs_show_options(
         struct seq_file         *m,
-        struct vfsmount         *mnt)
+        struct dentry           *root)
 {
-        return -xfs_showargs(XFS_M(mnt->mnt_sb), m);
+        return -xfs_showargs(XFS_M(root->d_sb), m);
 }
 
 /*
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 8b32d1a4c5a1..89dbb4a50872 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -53,7 +53,7 @@ xfs_dir_ialloc(
                                            output: may be a new transaction. */
         xfs_inode_t     *dp,            /* directory within whose allocate
                                            the inode. */
-        mode_t          mode,
+        umode_t         mode,
         xfs_nlink_t     nlink,
         xfs_dev_t       rdev,
         prid_t          prid,           /* project id */
diff --git a/fs/xfs/xfs_utils.h b/fs/xfs/xfs_utils.h
index 456fca314933..5eeab4690cfe 100644
--- a/fs/xfs/xfs_utils.h
+++ b/fs/xfs/xfs_utils.h
@@ -18,7 +18,7 @@
 #ifndef __XFS_UTILS_H__
 #define __XFS_UTILS_H__
 
-extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
+extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, umode_t, xfs_nlink_t,
                                 xfs_dev_t, prid_t, int, xfs_inode_t **, int *);
 extern int xfs_droplink(xfs_trans_t *, xfs_inode_t *);
 extern int xfs_bumplink(xfs_trans_t *, xfs_inode_t *);
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index ce9268a2f56b..f2fea868d4db 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -822,7 +822,7 @@ int
 xfs_create(
         xfs_inode_t             *dp,
         struct xfs_name         *name,
-        mode_t                  mode,
+        umode_t                 mode,
         xfs_dev_t               rdev,
         xfs_inode_t             **ipp)
 {
@@ -1481,7 +1481,7 @@ xfs_symlink(
         xfs_inode_t             *dp,
         struct xfs_name         *link_name,
         const char              *target_path,
-        mode_t                  mode,
+        umode_t                 mode,
         xfs_inode_t             **ipp)
 {
         xfs_mount_t             *mp = dp->i_mount;
diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h
index 35d3d513e1e9..0c877cbde142 100644
--- a/fs/xfs/xfs_vnodeops.h
+++ b/fs/xfs/xfs_vnodeops.h
@@ -26,7 +26,7 @@ int xfs_release(struct xfs_inode *ip);
 int xfs_inactive(struct xfs_inode *ip);
 int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
                 struct xfs_inode **ipp, struct xfs_name *ci_name);
-int xfs_create(struct xfs_inode *dp, struct xfs_name *name, mode_t mode,
+int xfs_create(struct xfs_inode *dp, struct xfs_name *name, umode_t mode,
                 xfs_dev_t rdev, struct xfs_inode **ipp);
 int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
                 struct xfs_inode *ip);
@@ -35,7 +35,7 @@ int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
 int xfs_readdir(struct xfs_inode        *dp, void *dirent, size_t bufsize,
                        xfs_off_t *offset, filldir_t filldir);
 int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,
-                const char *target_path, mode_t mode, struct xfs_inode **ipp);
+                const char *target_path, umode_t mode, struct xfs_inode **ipp);
 int xfs_set_dmattrs(struct xfs_inode *ip, u_int evmask, u_int16_t state);
 int xfs_change_file_space(struct xfs_inode *ip, int cmd,
                 xfs_flock64_t *bf, xfs_off_t offset, int attr_flags);
diff --git a/include/asm-generic/types.h b/include/asm-generic/types.h
index 7a0f69e6c618..bd39806013b5 100644
--- a/include/asm-generic/types.h
+++ b/include/asm-generic/types.h
@@ -6,10 +6,4 @@
  */
 #include <asm-generic/int-ll64.h>
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
 #endif /* _ASM_GENERIC_TYPES_H */
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 2f81c6f3b630..426ab9f4dd85 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -468,13 +468,13 @@ extern int  audit_set_loginuid(struct task_struct *task, uid_t loginuid);
 #define audit_get_sessionid(t) ((t)->sessionid)
 extern void audit_log_task_context(struct audit_buffer *ab);
 extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
-extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
+extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
 extern int audit_bprm(struct linux_binprm *bprm);
 extern void audit_socketcall(int nargs, unsigned long *args);
 extern int audit_sockaddr(int len, void *addr);
 extern void __audit_fd_pair(int fd1, int fd2);
 extern int audit_set_macxattr(const char *name);
-extern void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr);
+extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
 extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
 extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
 extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
@@ -494,12 +494,12 @@ static inline void audit_fd_pair(int fd1, int fd2)
         if (unlikely(!audit_dummy_context()))
                 __audit_fd_pair(fd1, fd2);
 }
-static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
+static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
 {
         if (unlikely(!audit_dummy_context()))
                 __audit_ipc_set_perm(qbytes, uid, gid, mode);
 }
-static inline void audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr)
+static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
 {
         if (unlikely(!audit_dummy_context()))
                 __audit_mq_open(oflag, mode, attr);
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 1b7f9d525013..a17becc36ca1 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -319,7 +319,7 @@ struct cftype {
          * If not 0, file mode is set to this value, otherwise it will
          * be figured out automatically
          */
-        mode_t mode;
+        umode_t mode;
 
         /*
          * If non-zero, defines the maximum length of string that can
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 66ed067fb729..41c9f6515f46 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -422,9 +422,9 @@ asmlinkage long compat_sys_getdents64(unsigned int fd,
 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
                                     unsigned int nr_segs, unsigned int flags);
 asmlinkage long compat_sys_open(const char __user *filename, int flags,
-                                int mode);
+                                umode_t mode);
 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
-                                  int flags, int mode);
+                                  int flags, umode_t mode);
 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
                                              struct file_handle __user *handle,
                                              int flags);
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index 3081c58d696e..34025df61829 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -124,7 +124,7 @@ extern struct config_item *config_group_find_item(struct config_group *,
 struct configfs_attribute {
         const char              *ca_name;
         struct module           *ca_owner;
-        mode_t                  ca_mode;
+        umode_t                 ca_mode;
 };
 
 /*
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index e8c3abc60811..6169c26fd8c8 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -46,7 +46,7 @@ extern struct dentry *arch_debugfs_dir;
 extern const struct file_operations debugfs_file_operations;
 extern const struct inode_operations debugfs_link_operations;
 
-struct dentry *debugfs_create_file(const char *name, mode_t mode,
+struct dentry *debugfs_create_file(const char *name, umode_t mode,
                                    struct dentry *parent, void *data,
                                    const struct file_operations *fops);
 
@@ -61,28 +61,28 @@ void debugfs_remove_recursive(struct dentry *dentry);
 struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                 struct dentry *new_dir, const char *new_name);
 
-struct dentry *debugfs_create_u8(const char *name, mode_t mode,
+struct dentry *debugfs_create_u8(const char *name, umode_t mode,
                                  struct dentry *parent, u8 *value);
-struct dentry *debugfs_create_u16(const char *name, mode_t mode,
+struct dentry *debugfs_create_u16(const char *name, umode_t mode,
                                   struct dentry *parent, u16 *value);
-struct dentry *debugfs_create_u32(const char *name, mode_t mode,
+struct dentry *debugfs_create_u32(const char *name, umode_t mode,
                                   struct dentry *parent, u32 *value);
-struct dentry *debugfs_create_u64(const char *name, mode_t mode,
+struct dentry *debugfs_create_u64(const char *name, umode_t mode,
                                   struct dentry *parent, u64 *value);
-struct dentry *debugfs_create_x8(const char *name, mode_t mode,
+struct dentry *debugfs_create_x8(const char *name, umode_t mode,
                                  struct dentry *parent, u8 *value);
-struct dentry *debugfs_create_x16(const char *name, mode_t mode,
+struct dentry *debugfs_create_x16(const char *name, umode_t mode,
                                   struct dentry *parent, u16 *value);
-struct dentry *debugfs_create_x32(const char *name, mode_t mode,
+struct dentry *debugfs_create_x32(const char *name, umode_t mode,
                                   struct dentry *parent, u32 *value);
-struct dentry *debugfs_create_x64(const char *name, mode_t mode,
+struct dentry *debugfs_create_x64(const char *name, umode_t mode,
                                   struct dentry *parent, u64 *value);
-struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
+struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
                                      struct dentry *parent, size_t *value);
-struct dentry *debugfs_create_bool(const char *name, mode_t mode,
+struct dentry *debugfs_create_bool(const char *name, umode_t mode,
                                   struct dentry *parent, u32 *value);
 
-struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+struct dentry *debugfs_create_blob(const char *name, umode_t mode,
                                   struct dentry *parent,
                                   struct debugfs_blob_wrapper *blob);
 
@@ -105,7 +105,7 @@ bool debugfs_initialized(void);
  * want to duplicate the design decision mistakes of procfs and devfs again.
  */
 
-static inline struct dentry *debugfs_create_file(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_file(const char *name, umode_t mode,
                                         struct dentry *parent, void *data,
                                         const struct file_operations *fops)
 {
@@ -137,70 +137,70 @@ static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentr
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_u8(const char *name, umode_t mode,
                                                struct dentry *parent,
                                                u8 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_u16(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_u16(const char *name, umode_t mode,
                                                 struct dentry *parent,
                                                 u16 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_u32(const char *name, umode_t mode,
                                                 struct dentry *parent,
                                                 u32 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_u64(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_u64(const char *name, umode_t mode,
                                                 struct dentry *parent,
                                                 u64 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_x8(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_x8(const char *name, umode_t mode,
                                                struct dentry *parent,
                                                u8 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_x16(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_x16(const char *name, umode_t mode,
                                                 struct dentry *parent,
                                                 u16 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_x32(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_x32(const char *name, umode_t mode,
                                                 struct dentry *parent,
                                                 u32 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
                                      struct dentry *parent,
                                      size_t *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_bool(const char *name, umode_t mode,
                                                  struct dentry *parent,
                                                  u32 *value)
 {
         return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+static inline struct dentry *debugfs_create_blob(const char *name, umode_t mode,
                                   struct dentry *parent,
                                   struct debugfs_blob_wrapper *blob)
 {
diff --git a/include/linux/device.h b/include/linux/device.h
index 96acef8dd916..5b3adb8f9588 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -343,7 +343,7 @@ struct class {
         struct kobject                  *dev_kobj;
 
         int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
-        char *(*devnode)(struct device *dev, mode_t *mode);
+        char *(*devnode)(struct device *dev, umode_t *mode);
 
         void (*class_release)(struct class *class);
         void (*dev_release)(struct device *dev);
@@ -472,7 +472,7 @@ struct device_type {
         const char *name;
         const struct attribute_group **groups;
         int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
-        char *(*devnode)(struct device *dev, mode_t *mode);
+        char *(*devnode)(struct device *dev, umode_t *mode);
         void (*release)(struct device *dev);
 
         const struct dev_pm_ops *pm;
@@ -793,7 +793,7 @@ extern int device_rename(struct device *dev, const char *new_name);
 extern int device_move(struct device *dev, struct device *new_parent,
                        enum dpm_order dpm_order);
 extern const char *device_get_devnode(struct device *dev,
-                                      mode_t *mode, const char **tmp);
+                                      umode_t *mode, const char **tmp);
 extern void *dev_get_drvdata(const struct device *dev);
 extern int dev_set_drvdata(struct device *dev, void *data);
 
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index dec99116a0e4..f957085d40ed 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -884,7 +884,7 @@ extern int ext3fs_dirhash(const char *name, int len, struct
 
 /* ialloc.c */
 extern struct inode * ext3_new_inode (handle_t *, struct inode *,
-                                      const struct qstr *, int);
+                                      const struct qstr *, umode_t);
 extern void ext3_free_inode (handle_t *, struct inode *);
 extern struct inode * ext3_orphan_get (struct super_block *, unsigned long);
 extern unsigned long ext3_count_free_inodes (struct super_block *);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e0bc4ffb8e7f..7aacf31418fe 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1428,6 +1428,7 @@ struct super_block {
 #else
         struct list_head        s_files;
 #endif
+        struct list_head        s_mounts;       /* list of mounts; _not_ for fs use */
         /* s_dentry_lru, s_nr_dentry_unused protected by dcache.c lru locks */
         struct list_head        s_dentry_lru;   /* unused dentry lru */
         int                     s_nr_dentry_unused;     /* # of dentry on lru */
@@ -1440,7 +1441,7 @@ struct super_block {
         struct block_device     *s_bdev;
         struct backing_dev_info *s_bdi;
         struct mtd_info         *s_mtd;
-        struct list_head        s_instances;
+        struct hlist_node       s_instances;
         struct quota_info       s_dquot;        /* Diskquota specific options */
 
         int                     s_frozen;
@@ -1481,6 +1482,12 @@ struct super_block {
         int cleancache_poolid;
 
         struct shrinker s_shrink;       /* per-sb shrinker handle */
+
+        /* Number of inodes with nlink == 0 but still referenced */
+        atomic_long_t s_remove_count;
+
+        /* Being remounted read-only */
+        int s_readonly_remount;
 };
 
 /* superblock cache pruning functions */
@@ -1516,9 +1523,9 @@ extern void unlock_super(struct super_block *);
 /*
  * VFS helper functions..
  */
-extern int vfs_create(struct inode *, struct dentry *, int, struct nameidata *);
-extern int vfs_mkdir(struct inode *, struct dentry *, int);
-extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t);
+extern int vfs_create(struct inode *, struct dentry *, umode_t, struct nameidata *);
+extern int vfs_mkdir(struct inode *, struct dentry *, umode_t);
+extern int vfs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
 extern int vfs_symlink(struct inode *, struct dentry *, const char *);
 extern int vfs_link(struct dentry *, struct inode *, struct dentry *);
 extern int vfs_rmdir(struct inode *, struct dentry *);
@@ -1534,7 +1541,7 @@ extern void dentry_unhash(struct dentry *dentry);
  * VFS file helper functions.
  */
 extern void inode_init_owner(struct inode *inode, const struct inode *dir,
-                        mode_t mode);
+                        umode_t mode);
 /*
  * VFS FS_IOC_FIEMAP helper definitions.
  */
@@ -1619,13 +1626,13 @@ struct inode_operations {
         int (*readlink) (struct dentry *, char __user *,int);
         void (*put_link) (struct dentry *, struct nameidata *, void *);
 
-        int (*create) (struct inode *,struct dentry *,int, struct nameidata *);
+        int (*create) (struct inode *,struct dentry *,umode_t,struct nameidata *);
         int (*link) (struct dentry *,struct inode *,struct dentry *);
         int (*unlink) (struct inode *,struct dentry *);
         int (*symlink) (struct inode *,struct dentry *,const char *);
-        int (*mkdir) (struct inode *,struct dentry *,int);
+        int (*mkdir) (struct inode *,struct dentry *,umode_t);
         int (*rmdir) (struct inode *,struct dentry *);
-        int (*mknod) (struct inode *,struct dentry *,int,dev_t);
+        int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t);
         int (*rename) (struct inode *, struct dentry *,
                         struct inode *, struct dentry *);
         void (*truncate) (struct inode *);
@@ -1672,10 +1679,10 @@ struct super_operations {
         int (*remount_fs) (struct super_block *, int *, char *);
         void (*umount_begin) (struct super_block *);
 
-        int (*show_options)(struct seq_file *, struct vfsmount *);
-        int (*show_devname)(struct seq_file *, struct vfsmount *);
-        int (*show_path)(struct seq_file *, struct vfsmount *);
-        int (*show_stats)(struct seq_file *, struct vfsmount *);
+        int (*show_options)(struct seq_file *, struct dentry *);
+        int (*show_devname)(struct seq_file *, struct dentry *);
+        int (*show_path)(struct seq_file *, struct dentry *);
+        int (*show_stats)(struct seq_file *, struct dentry *);
 #ifdef CONFIG_QUOTA
         ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
         ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
@@ -1764,31 +1771,10 @@ static inline void mark_inode_dirty_sync(struct inode *inode)
         __mark_inode_dirty(inode, I_DIRTY_SYNC);
 }
 
-/**
- * set_nlink - directly set an inode's link count
- * @inode: inode
- * @nlink: new nlink (should be non-zero)
- *
- * This is a low-level filesystem helper to replace any
- * direct filesystem manipulation of i_nlink.
- */
-static inline void set_nlink(struct inode *inode, unsigned int nlink)
-{
-        inode->__i_nlink = nlink;
-}
-
-/**
- * inc_nlink - directly increment an inode's link count
- * @inode: inode
- *
- * This is a low-level filesystem helper to replace any
- * direct filesystem manipulation of i_nlink.  Currently,
- * it is only here for parity with dec_nlink().
- */
-static inline void inc_nlink(struct inode *inode)
-{
-        inode->__i_nlink++;
-}
+extern void inc_nlink(struct inode *inode);
+extern void drop_nlink(struct inode *inode);
+extern void clear_nlink(struct inode *inode);
+extern void set_nlink(struct inode *inode, unsigned int nlink);
 
 static inline void inode_inc_link_count(struct inode *inode)
 {
@@ -1796,35 +1782,6 @@ static inline void inode_inc_link_count(struct inode *inode)
         mark_inode_dirty(inode);
 }
 
-/**
- * drop_nlink - directly drop an inode's link count
- * @inode: inode
- *
- * This is a low-level filesystem helper to replace any
- * direct filesystem manipulation of i_nlink.  In cases
- * where we are attempting to track writes to the
- * filesystem, a decrement to zero means an imminent
- * write when the file is truncated and actually unlinked
- * on the filesystem.
- */
-static inline void drop_nlink(struct inode *inode)
-{
-        inode->__i_nlink--;
-}
-
-/**
- * clear_nlink - directly zero an inode's link count
- * @inode: inode
- *
- * This is a low-level filesystem helper to replace any
- * direct filesystem manipulation of i_nlink.  See
- * drop_nlink() for why we care about i_nlink hitting zero.
- */
-static inline void clear_nlink(struct inode *inode)
-{
-        inode->__i_nlink = 0;
-}
-
 static inline void inode_dec_link_count(struct inode *inode)
 {
         drop_nlink(inode);
@@ -1864,7 +1821,7 @@ struct file_system_type {
         void (*kill_sb) (struct super_block *);
         struct module *owner;
         struct file_system_type * next;
-        struct list_head fs_supers;
+        struct hlist_head fs_supers;
 
         struct lock_class_key s_lock_key;
         struct lock_class_key s_umount_key;
@@ -1939,7 +1896,7 @@ extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
 extern int vfs_statfs(struct path *, struct kstatfs *);
 extern int user_statfs(const char __user *, struct kstatfs *);
 extern int fd_statfs(int, struct kstatfs *);
-extern int statfs_by_dentry(struct dentry *, struct kstatfs *);
+extern int vfs_ustat(dev_t, struct kstatfs *);
 extern int freeze_super(struct super_block *super);
 extern int thaw_super(struct super_block *super);
 extern bool our_mnt(struct vfsmount *mnt);
@@ -2054,8 +2011,8 @@ extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs,
 extern int do_fallocate(struct file *file, int mode, loff_t offset,
                         loff_t len);
 extern long do_sys_open(int dfd, const char __user *filename, int flags,
-                        int mode);
-extern struct file *filp_open(const char *, int, int);
+                        umode_t mode);
+extern struct file *filp_open(const char *, int, umode_t);
 extern struct file *file_open_root(struct dentry *, struct vfsmount *,
                                    const char *, int);
 extern struct file * dentry_open(struct dentry *, struct vfsmount *, int,
@@ -2092,6 +2049,7 @@ extern void bd_forget(struct inode *inode);
 extern void bdput(struct block_device *);
 extern void invalidate_bdev(struct block_device *);
 extern int sync_blockdev(struct block_device *bdev);
+extern void kill_bdev(struct block_device *);
 extern struct super_block *freeze_bdev(struct block_device *);
 extern void emergency_thaw_all(void);
 extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
@@ -2099,6 +2057,7 @@ extern int fsync_bdev(struct block_device *);
 #else
 static inline void bd_forget(struct inode *inode) {}
 static inline int sync_blockdev(struct block_device *bdev) { return 0; }
+static inline void kill_bdev(struct block_device *bdev) {}
 static inline void invalidate_bdev(struct block_device *bdev) {}
 
 static inline struct super_block *freeze_bdev(struct block_device *sb)
@@ -2191,8 +2150,6 @@ extern const struct file_operations read_pipefifo_fops;
 extern const struct file_operations write_pipefifo_fops;
 extern const struct file_operations rdwr_pipefifo_fops;
 
-extern int fs_may_remount_ro(struct super_block *);
-
 #ifdef CONFIG_BLOCK
 /*
  * return READ, READA, or WRITE
@@ -2415,6 +2372,7 @@ extern ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov,
                                 unsigned long nr_segs, loff_t pos);
 extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end,
                         int datasync);
+extern void block_sync_page(struct page *page);
 
 /* fs/splice.c */
 extern ssize_t generic_file_splice_read(struct file *, loff_t *,
@@ -2531,7 +2489,6 @@ extern void put_filesystem(struct file_system_type *fs);
 extern struct file_system_type *get_fs_type(const char *name);
 extern struct super_block *get_super(struct block_device *);
 extern struct super_block *get_active_super(struct block_device *bdev);
-extern struct super_block *user_get_super(dev_t);
 extern void drop_super(struct super_block *sb);
 extern void iterate_supers(void (*)(struct super_block *, void *), void *);
 extern void iterate_supers_type(struct file_system_type *,
@@ -2590,7 +2547,7 @@ extern void setattr_copy(struct inode *inode, const struct iattr *attr);
 
 extern void file_update_time(struct file *file);
 
-extern int generic_show_options(struct seq_file *m, struct vfsmount *mnt);
+extern int generic_show_options(struct seq_file *m, struct dentry *root);
 extern void save_mount_options(struct super_block *sb, char *options);
 extern void replace_mount_options(struct super_block *sb, char *options);
 
@@ -2691,7 +2648,7 @@ int __init get_filesystem_list(char *buf);
 #define OPEN_FMODE(flag) ((__force fmode_t)(((flag + 1) & O_ACCMODE) | \
                                             (flag & __FMODE_NONOTIFY)))
 
-static inline int is_sxid(mode_t mode)
+static inline int is_sxid(umode_t mode)
 {
         return (mode & S_ISUID) || ((mode & S_ISGID) && (mode & S_IXGRP));
 }
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 6d18f3531f18..fe23ee768589 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -163,7 +163,7 @@ struct gendisk {
                                          * disks that can't be partitioned. */
 
         char disk_name[DISK_NAME_LEN];  /* name of major driver */
-        char *(*devnode)(struct gendisk *gd, mode_t *mode);
+        char *(*devnode)(struct gendisk *gd, umode_t *mode);
 
         unsigned int events;            /* supported events */
         unsigned int async_events;      /* async events, subset of all */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 42557851b12e..501370b61ee5 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -920,7 +920,7 @@ __IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL)
 
 typedef struct {
         const char      *name;
-        mode_t          mode;
+        umode_t         mode;
         const struct file_operations *proc_fops;
 } ide_proc_entry_t;
 
diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index 3b1594d662b0..30e816148df4 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -93,7 +93,7 @@ struct kern_ipc_perm
         gid_t           gid;
         uid_t           cuid;
         gid_t           cgid;
-        mode_t          mode; 
+        umode_t         mode; 
         unsigned long   seq;
         void            *security;
 };
diff --git a/include/linux/iscsi_boot_sysfs.h b/include/linux/iscsi_boot_sysfs.h
index f0a2f8b0aa13..2a8b1659bf35 100644
--- a/include/linux/iscsi_boot_sysfs.h
+++ b/include/linux/iscsi_boot_sysfs.h
@@ -91,7 +91,7 @@ struct iscsi_boot_kobj {
          * The enum of the type. This can be any value of the above
          * properties.
          */
-        mode_t (*is_visible) (void *data, int type);
+        umode_t (*is_visible) (void *data, int type);
 
         /*
          * Driver specific release function.
@@ -110,20 +110,20 @@ struct iscsi_boot_kobj *
 iscsi_boot_create_initiator(struct iscsi_boot_kset *boot_kset, int index,
                             void *data,
                             ssize_t (*show) (void *data, int type, char *buf),
-                            mode_t (*is_visible) (void *data, int type),
+                            umode_t (*is_visible) (void *data, int type),
                             void (*release) (void *data));
 
 struct iscsi_boot_kobj *
 iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index,
                            void *data,
                            ssize_t (*show) (void *data, int type, char *buf),
-                           mode_t (*is_visible) (void *data, int type),
+                           umode_t (*is_visible) (void *data, int type),
                            void (*release) (void *data));
 struct iscsi_boot_kobj *
 iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index,
                          void *data,
                          ssize_t (*show) (void *data, int type, char *buf),
-                         mode_t (*is_visible) (void *data, int type),
+                         umode_t (*is_visible) (void *data, int type),
                          void (*release) (void *data));
 
 struct iscsi_boot_kset *iscsi_boot_create_kset(const char *set_name);
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index c41d7270c6c6..32085249e9cb 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -54,7 +54,7 @@ struct miscdevice  {
         struct device *parent;
         struct device *this_device;
         const char *nodename;
-        mode_t mode;
+        umode_t mode;
 };
 
 extern int misc_register(struct miscdevice * misc);
diff --git a/include/linux/mnt_namespace.h b/include/linux/mnt_namespace.h
index 29304855652d..5a8e3903d770 100644
--- a/include/linux/mnt_namespace.h
+++ b/include/linux/mnt_namespace.h
@@ -2,39 +2,16 @@
 #define _NAMESPACE_H_
 #ifdef __KERNEL__
 
-#include <linux/path.h>
-#include <linux/seq_file.h>
-#include <linux/wait.h>
-
-struct mnt_namespace {
-        atomic_t                count;
-        struct vfsmount *       root;
-        struct list_head        list;
-        wait_queue_head_t poll;
-        int event;
-};
-
-struct proc_mounts {
-        struct seq_file m; /* must be the first element */
-        struct mnt_namespace *ns;
-        struct path root;
-};
-
+struct mnt_namespace;
 struct fs_struct;
 
-extern struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt);
 extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *,
                 struct fs_struct *);
 extern void put_mnt_ns(struct mnt_namespace *ns);
-static inline void get_mnt_ns(struct mnt_namespace *ns)
-{
-        atomic_inc(&ns->count);
-}
 
-extern const struct seq_operations mounts_op;
-extern const struct seq_operations mountinfo_op;
-extern const struct seq_operations mountstats_op;
-extern int mnt_had_events(struct proc_mounts *);
+extern const struct file_operations proc_mounts_operations;
+extern const struct file_operations proc_mountinfo_operations;
+extern const struct file_operations proc_mountstats_operations;
 
 #endif
 #endif
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 33fe53d78110..d7029f4a191a 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -47,45 +47,10 @@ struct mnt_namespace;
 
 #define MNT_INTERNAL    0x4000
 
-struct mnt_pcp {
-        int mnt_count;
-        int mnt_writers;
-};
-
 struct vfsmount {
-        struct list_head mnt_hash;
-        struct vfsmount *mnt_parent;    /* fs we are mounted on */
-        struct dentry *mnt_mountpoint;  /* dentry of mountpoint */
         struct dentry *mnt_root;        /* root of the mounted tree */
         struct super_block *mnt_sb;     /* pointer to superblock */
-#ifdef CONFIG_SMP
-        struct mnt_pcp __percpu *mnt_pcp;
-        atomic_t mnt_longterm;          /* how many of the refs are longterm */
-#else
-        int mnt_count;
-        int mnt_writers;
-#endif
-        struct list_head mnt_mounts;    /* list of children, anchored here */
-        struct list_head mnt_child;     /* and going through their mnt_child */
         int mnt_flags;
-        /* 4 bytes hole on 64bits arches without fsnotify */
-#ifdef CONFIG_FSNOTIFY
-        __u32 mnt_fsnotify_mask;
-        struct hlist_head mnt_fsnotify_marks;
-#endif
-        const char *mnt_devname;        /* Name of device e.g. /dev/dsk/hda1 */
-        struct list_head mnt_list;
-        struct list_head mnt_expire;    /* link in fs-specific expiry list */
-        struct list_head mnt_share;     /* circular list of shared mounts */
-        struct list_head mnt_slave_list;/* list of slave mounts */
-        struct list_head mnt_slave;     /* slave list entry */
-        struct vfsmount *mnt_master;    /* slave is on master->mnt_slave_list */
-        struct mnt_namespace *mnt_ns;   /* containing namespace */
-        int mnt_id;                     /* mount identifier */
-        int mnt_group_id;               /* peer group identifier */
-        int mnt_expiry_mark;            /* true if marked for expiry */
-        int mnt_pinned;
-        int mnt_ghosts;
 };
 
 struct file; /* forward dec */
@@ -94,15 +59,13 @@ extern int mnt_want_write(struct vfsmount *mnt);
 extern int mnt_want_write_file(struct file *file);
 extern int mnt_clone_write(struct vfsmount *mnt);
 extern void mnt_drop_write(struct vfsmount *mnt);
+extern void mnt_drop_write_file(struct file *file);
 extern void mntput(struct vfsmount *mnt);
 extern struct vfsmount *mntget(struct vfsmount *mnt);
 extern void mnt_pin(struct vfsmount *mnt);
 extern void mnt_unpin(struct vfsmount *mnt);
 extern int __mnt_is_readonly(struct vfsmount *mnt);
 
-extern struct vfsmount *do_kern_mount(const char *fstype, int flags,
-                                      const char *name, void *data);
-
 struct file_system_type;
 extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
                                       int flags, const char *name,
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 92ecf5585fac..8c29950d2fa5 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -373,7 +373,7 @@ extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
 extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
 extern void put_nfs_open_context(struct nfs_open_context *ctx);
 extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
-extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, struct rpc_cred *cred, fmode_t f_mode);
+extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode);
 extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx);
 extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx);
 extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx);
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 643b96c7a94f..6d9e575519cc 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -50,7 +50,7 @@ typedef	int (write_proc_t)(struct file *file, const char __user *buffer,
 
 struct proc_dir_entry {
         unsigned int low_ino;
-        mode_t mode;
+        umode_t mode;
         nlink_t nlink;
         uid_t uid;
         gid_t gid;
@@ -106,9 +106,9 @@ extern void proc_root_init(void);
 
 void proc_flush_task(struct task_struct *task);
 
-extern struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
+extern struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode,
                                                 struct proc_dir_entry *parent);
-struct proc_dir_entry *proc_create_data(const char *name, mode_t mode,
+struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
                                 struct proc_dir_entry *parent,
                                 const struct file_operations *proc_fops,
                                 void *data);
@@ -146,17 +146,17 @@ extern void proc_device_tree_update_prop(struct proc_dir_entry *pde,
 extern struct proc_dir_entry *proc_symlink(const char *,
                 struct proc_dir_entry *, const char *);
 extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *);
-extern struct proc_dir_entry *proc_mkdir_mode(const char *name, mode_t mode,
+extern struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
                         struct proc_dir_entry *parent);
 
-static inline struct proc_dir_entry *proc_create(const char *name, mode_t mode,
+static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode,
         struct proc_dir_entry *parent, const struct file_operations *proc_fops)
 {
         return proc_create_data(name, mode, parent, proc_fops, NULL);
 }
 
 static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
-        mode_t mode, struct proc_dir_entry *base, 
+        umode_t mode, struct proc_dir_entry *base, 
         read_proc_t *read_proc, void * data)
 {
         struct proc_dir_entry *res=create_proc_entry(name,mode,base);
@@ -168,7 +168,7 @@ static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
 }
  
 extern struct proc_dir_entry *proc_net_fops_create(struct net *net,
-        const char *name, mode_t mode, const struct file_operations *fops);
+        const char *name, umode_t mode, const struct file_operations *fops);
 extern void proc_net_remove(struct net *net, const char *name);
 extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
         struct proc_dir_entry *parent);
@@ -185,15 +185,15 @@ static inline void proc_flush_task(struct task_struct *task)
 }
 
 static inline struct proc_dir_entry *create_proc_entry(const char *name,
-        mode_t mode, struct proc_dir_entry *parent) { return NULL; }
+        umode_t mode, struct proc_dir_entry *parent) { return NULL; }
 static inline struct proc_dir_entry *proc_create(const char *name,
-        mode_t mode, struct proc_dir_entry *parent,
+        umode_t mode, struct proc_dir_entry *parent,
         const struct file_operations *proc_fops)
 {
         return NULL;
 }
 static inline struct proc_dir_entry *proc_create_data(const char *name,
-        mode_t mode, struct proc_dir_entry *parent,
+        umode_t mode, struct proc_dir_entry *parent,
         const struct file_operations *proc_fops, void *data)
 {
         return NULL;
@@ -205,10 +205,10 @@ static inline struct proc_dir_entry *proc_symlink(const char *name,
 static inline struct proc_dir_entry *proc_mkdir(const char *name,
         struct proc_dir_entry *parent) {return NULL;}
 static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
-        mode_t mode, struct proc_dir_entry *parent) { return NULL; }
+        umode_t mode, struct proc_dir_entry *parent) { return NULL; }
 
 static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
-        mode_t mode, struct proc_dir_entry *base, 
+        umode_t mode, struct proc_dir_entry *base, 
         read_proc_t *read_proc, void * data) { return NULL; }
 
 struct tty_driver;
diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h
index 3a8f0c9b2933..5bf5500db83d 100644
--- a/include/linux/ramfs.h
+++ b/include/linux/ramfs.h
@@ -2,7 +2,7 @@
 #define _LINUX_RAMFS_H
 
 struct inode *ramfs_get_inode(struct super_block *sb, const struct inode *dir,
-         int mode, dev_t dev);
+         umode_t mode, dev_t dev);
 extern struct dentry *ramfs_mount(struct file_system_type *fs_type,
          int flags, const char *dev_name, void *data);
 
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 96d465f8d3e6..2213ddcce20c 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1759,13 +1759,14 @@ struct reiserfs_journal_header {
                                               REISERFS_QUOTA_TRANS_BLOCKS(sb)))
 
 #ifdef CONFIG_QUOTA
+#define REISERFS_QUOTA_OPTS ((1 << REISERFS_USRQUOTA) | (1 << REISERFS_GRPQUOTA))
 /* We need to update data and inode (atime) */
-#define REISERFS_QUOTA_TRANS_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? 2 : 0)
+#define REISERFS_QUOTA_TRANS_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & REISERFS_QUOTA_OPTS ? 2 : 0)
 /* 1 balancing, 1 bitmap, 1 data per write + stat data update */
-#define REISERFS_QUOTA_INIT_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? \
+#define REISERFS_QUOTA_INIT_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & REISERFS_QUOTA_OPTS ? \
 (DQUOT_INIT_ALLOC*(JOURNAL_PER_BALANCE_CNT+2)+DQUOT_INIT_REWRITE+1) : 0)
 /* same as with INIT */
-#define REISERFS_QUOTA_DEL_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? \
+#define REISERFS_QUOTA_DEL_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & REISERFS_QUOTA_OPTS ? \
 (DQUOT_DEL_ALLOC*(JOURNAL_PER_BALANCE_CNT+2)+DQUOT_DEL_REWRITE+1) : 0)
 #else
 #define REISERFS_QUOTA_TRANS_BLOCKS(s) 0
@@ -2056,7 +2057,7 @@ struct inode *reiserfs_iget(struct super_block *s, const struct cpu_key *key);
 
 struct reiserfs_security_handle;
 int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
-                       struct inode *dir, int mode,
+                       struct inode *dir, umode_t mode,
                        const char *symname, loff_t i_size,
                        struct dentry *dentry, struct inode *inode,
                        struct reiserfs_security_handle *security);
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 52c83b6a758a..8c9e85c64b46 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -417,6 +417,7 @@ struct reiserfs_sb_info {
         char *s_qf_names[MAXQUOTAS];
         int s_jquota_fmt;
 #endif
+        char *s_jdev;           /* Stored jdev for mount option showing */
 #ifdef CONFIG_REISERFS_CHECK
 
         struct tree_balance *cur_tb;    /*
@@ -482,7 +483,8 @@ enum reiserfs_mount_options {
         REISERFS_ERROR_RO,
         REISERFS_ERROR_CONTINUE,
 
-        REISERFS_QUOTA,         /* Some quota option specified */
+        REISERFS_USRQUOTA,      /* User quota option specified */
+        REISERFS_GRPQUOTA,      /* Group quota option specified */
 
         REISERFS_TEST1,
         REISERFS_TEST2,
diff --git a/include/linux/relay.h b/include/linux/relay.h
index 14a86bc7102b..a822fd71fd64 100644
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -144,7 +144,7 @@ struct rchan_callbacks
          */
         struct dentry *(*create_buf_file)(const char *filename,
                                           struct dentry *parent,
-                                          int mode,
+                                          umode_t mode,
                                           struct rchan_buf *buf,
                                           int *is_global);
 
diff --git a/include/linux/security.h b/include/linux/security.h
index e8c619d39291..4298d2dbafa3 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1424,9 +1424,9 @@ struct security_operations {
 
 #ifdef CONFIG_SECURITY_PATH
         int (*path_unlink) (struct path *dir, struct dentry *dentry);
-        int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode);
+        int (*path_mkdir) (struct path *dir, struct dentry *dentry, umode_t mode);
         int (*path_rmdir) (struct path *dir, struct dentry *dentry);
-        int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode,
+        int (*path_mknod) (struct path *dir, struct dentry *dentry, umode_t mode,
                            unsigned int dev);
         int (*path_truncate) (struct path *path);
         int (*path_symlink) (struct path *dir, struct dentry *dentry,
@@ -1435,8 +1435,7 @@ struct security_operations {
                           struct dentry *new_dentry);
         int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
                             struct path *new_dir, struct dentry *new_dentry);
-        int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt,
-                           mode_t mode);
+        int (*path_chmod) (struct path *path, umode_t mode);
         int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
         int (*path_chroot) (struct path *path);
 #endif
@@ -1447,16 +1446,16 @@ struct security_operations {
                                     const struct qstr *qstr, char **name,
                                     void **value, size_t *len);
         int (*inode_create) (struct inode *dir,
-                             struct dentry *dentry, int mode);
+                             struct dentry *dentry, umode_t mode);
         int (*inode_link) (struct dentry *old_dentry,
                            struct inode *dir, struct dentry *new_dentry);
         int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
         int (*inode_symlink) (struct inode *dir,
                               struct dentry *dentry, const char *old_name);
-        int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
+        int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, umode_t mode);
         int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
         int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
-                            int mode, dev_t dev);
+                            umode_t mode, dev_t dev);
         int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
                              struct inode *new_dir, struct dentry *new_dentry);
         int (*inode_readlink) (struct dentry *dentry);
@@ -1716,15 +1715,15 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
                                      const struct qstr *qstr, char **name,
                                      void **value, size_t *len);
-int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
+int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
                          struct dentry *new_dentry);
 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
                            const char *old_name);
-int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
-int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
+int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
                           struct inode *new_dir, struct dentry *new_dentry);
 int security_inode_readlink(struct dentry *dentry);
@@ -2061,7 +2060,7 @@ static inline int security_old_inode_init_security(struct inode *inode,
 
 static inline int security_inode_create(struct inode *dir,
                                          struct dentry *dentry,
-                                         int mode)
+                                         umode_t mode)
 {
         return 0;
 }
@@ -2855,9 +2854,9 @@ static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi
 
 #ifdef CONFIG_SECURITY_PATH
 int security_path_unlink(struct path *dir, struct dentry *dentry);
-int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode);
+int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
 int security_path_rmdir(struct path *dir, struct dentry *dentry);
-int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
+int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
                         unsigned int dev);
 int security_path_truncate(struct path *path);
 int security_path_symlink(struct path *dir, struct dentry *dentry,
@@ -2866,8 +2865,7 @@ int security_path_link(struct dentry *old_dentry, struct path *new_dir,
                        struct dentry *new_dentry);
 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
                          struct path *new_dir, struct dentry *new_dentry);
-int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                        mode_t mode);
+int security_path_chmod(struct path *path, umode_t mode);
 int security_path_chown(struct path *path, uid_t uid, gid_t gid);
 int security_path_chroot(struct path *path);
 #else   /* CONFIG_SECURITY_PATH */
@@ -2877,7 +2875,7 @@ static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
 }
 
 static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
-                                      int mode)
+                                      umode_t mode)
 {
         return 0;
 }
@@ -2888,7 +2886,7 @@ static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
 }
 
 static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
-                                      int mode, unsigned int dev)
+                                      umode_t mode, unsigned int dev)
 {
         return 0;
 }
@@ -2919,9 +2917,7 @@ static inline int security_path_rename(struct path *old_dir,
         return 0;
 }
 
-static inline int security_path_chmod(struct dentry *dentry,
-                                      struct vfsmount *mnt,
-                                      mode_t mode)
+static inline int security_path_chmod(struct path *path, umode_t mode)
 {
         return 0;
 }
@@ -3010,7 +3006,7 @@ static inline void security_audit_rule_free(void *lsmrule)
 
 #ifdef CONFIG_SECURITYFS
 
-extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
+extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
                                              struct dentry *parent, void *data,
                                              const struct file_operations *fops);
 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
@@ -3025,7 +3021,7 @@ static inline struct dentry *securityfs_create_dir(const char *name,
 }
 
 static inline struct dentry *securityfs_create_file(const char *name,
-                                                    mode_t mode,
+                                                    umode_t mode,
                                                     struct dentry *parent,
                                                     void *data,
                                                     const struct file_operations *fops)
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 0b69a4684216..44f1514b00ba 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -74,7 +74,7 @@ static inline void seq_commit(struct seq_file *m, int num)
         }
 }
 
-char *mangle_path(char *s, char *p, char *esc);
+char *mangle_path(char *s, const char *p, const char *esc);
 int seq_open(struct file *, const struct seq_operations *);
 ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
 loff_t seq_lseek(struct file *, loff_t, int);
@@ -86,10 +86,10 @@ int seq_write(struct seq_file *seq, const void *data, size_t len);
 
 __printf(2, 3) int seq_printf(struct seq_file *, const char *, ...);
 
-int seq_path(struct seq_file *, struct path *, char *);
-int seq_dentry(struct seq_file *, struct dentry *, char *);
-int seq_path_root(struct seq_file *m, struct path *path, struct path *root,
-                  char *esc);
+int seq_path(struct seq_file *, const struct path *, const char *);
+int seq_dentry(struct seq_file *, struct dentry *, const char *);
+int seq_path_root(struct seq_file *m, const struct path *path,
+                  const struct path *root, const char *esc);
 int seq_bitmap(struct seq_file *m, const unsigned long *bits,
                                    unsigned int nr_bits);
 static inline int seq_cpumask(struct seq_file *m, const struct cpumask *mask)
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index 9291ac3cc627..e4c711c6f321 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -30,7 +30,7 @@ struct shmem_sb_info {
         spinlock_t stat_lock;       /* Serialize shmem_sb_info changes */
         uid_t uid;                  /* Mount uid for root directory */
         gid_t gid;                  /* Mount gid for root directory */
-        mode_t mode;                /* Mount mode for root directory */
+        umode_t mode;               /* Mount mode for root directory */
         struct mempolicy *mpol;     /* default memory policy for mappings */
 };
 
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 5efd8cef389e..57531f8e5956 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -203,7 +203,7 @@ extern void cache_unregister(struct cache_detail *cd);
 extern void cache_unregister_net(struct cache_detail *cd, struct net *net);
 
 extern int sunrpc_cache_register_pipefs(struct dentry *parent, const char *,
-                                        mode_t, struct cache_detail *);
+                                        umode_t, struct cache_detail *);
 extern void sunrpc_cache_unregister_pipefs(struct cache_detail *);
 
 extern void qword_add(char **bpp, int *lp, char *str);
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index e4ea43058d8f..2bb03d77375a 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -55,7 +55,7 @@ extern int rpc_remove_client_dir(struct dentry *);
 struct cache_detail;
 extern struct dentry *rpc_create_cache_dir(struct dentry *,
                                            struct qstr *,
-                                           mode_t umode,
+                                           umode_t umode,
                                            struct cache_detail *);
 extern void rpc_remove_cache_dir(struct dentry *);
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 86a24b1166d1..515669fa3c1d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -475,7 +475,7 @@ asmlinkage long sys_mincore(unsigned long start, size_t len,
 asmlinkage long sys_pivot_root(const char __user *new_root,
                                 const char __user *put_old);
 asmlinkage long sys_chroot(const char __user *filename);
-asmlinkage long sys_mknod(const char __user *filename, int mode,
+asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
                                 unsigned dev);
 asmlinkage long sys_link(const char __user *oldname,
                                 const char __user *newname);
@@ -483,8 +483,8 @@ asmlinkage long sys_symlink(const char __user *old, const char __user *new);
 asmlinkage long sys_unlink(const char __user *pathname);
 asmlinkage long sys_rename(const char __user *oldname,
                                 const char __user *newname);
-asmlinkage long sys_chmod(const char __user *filename, mode_t mode);
-asmlinkage long sys_fchmod(unsigned int fd, mode_t mode);
+asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
+asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
 
 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
 #if BITS_PER_LONG == 32
@@ -517,9 +517,9 @@ asmlinkage long sys_sendfile64(int out_fd, int in_fd,
                                loff_t __user *offset, size_t count);
 asmlinkage long sys_readlink(const char __user *path,
                                 char __user *buf, int bufsiz);
-asmlinkage long sys_creat(const char __user *pathname, int mode);
+asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
 asmlinkage long sys_open(const char __user *filename,
-                                int flags, int mode);
+                                int flags, umode_t mode);
 asmlinkage long sys_close(unsigned int fd);
 asmlinkage long sys_access(const char __user *filename, int mode);
 asmlinkage long sys_vhangup(void);
@@ -582,7 +582,7 @@ asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
                             unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
-asmlinkage long sys_mkdir(const char __user *pathname, int mode);
+asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
 asmlinkage long sys_chdir(const char __user *filename);
 asmlinkage long sys_fchdir(unsigned int fd);
 asmlinkage long sys_rmdir(const char __user *pathname);
@@ -679,7 +679,7 @@ asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
                 unsigned long third, void __user *ptr, long fifth);
 
-asmlinkage long sys_mq_open(const char __user *name, int oflag, mode_t mode, struct mq_attr __user *attr);
+asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
 asmlinkage long sys_mq_unlink(const char __user *name);
 asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout);
 asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout);
@@ -753,11 +753,11 @@ asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
                                  __u32 __user *ustatus);
 asmlinkage long sys_spu_create(const char __user *name,
-                unsigned int flags, mode_t mode, int fd);
+                unsigned int flags, umode_t mode, int fd);
 
-asmlinkage long sys_mknodat(int dfd, const char __user * filename, int mode,
+asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
                             unsigned dev);
-asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, int mode);
+asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
 asmlinkage long sys_symlinkat(const char __user * oldname,
                               int newdfd, const char __user * newname);
@@ -769,11 +769,11 @@ asmlinkage long sys_futimesat(int dfd, const char __user *filename,
                               struct timeval __user *utimes);
 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
-                             mode_t mode);
+                             umode_t mode);
 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
                              gid_t group, int flag);
 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
-                           int mode);
+                           umode_t mode);
 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
                                struct stat __user *statbuf, int flag);
 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 703cfa33a3ca..bb9127dd814b 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -1038,7 +1038,7 @@ struct ctl_table
         const char *procname;           /* Text ID for /proc/sys, or zero */
         void *data;
         int maxlen;
-        mode_t mode;
+        umode_t mode;
         struct ctl_table *child;
         struct ctl_table *parent;       /* Automatically set */
         proc_handler *proc_handler;     /* Callback for text formatting */
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index dac0859e6440..0010009b2f00 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -25,7 +25,7 @@ enum kobj_ns_type;
 
 struct attribute {
         const char              *name;
-        mode_t                  mode;
+        umode_t                 mode;
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
         struct lock_class_key   *key;
         struct lock_class_key   skey;
@@ -55,7 +55,7 @@ do {							\
 
 struct attribute_group {
         const char              *name;
-        mode_t                  (*is_visible)(struct kobject *,
+        umode_t                 (*is_visible)(struct kobject *,
                                               struct attribute *, int);
         struct attribute        **attrs;
 };
@@ -133,7 +133,7 @@ int __must_check sysfs_create_file(struct kobject *kobj,
 int __must_check sysfs_create_files(struct kobject *kobj,
                                    const struct attribute **attr);
 int __must_check sysfs_chmod_file(struct kobject *kobj,
-                                  const struct attribute *attr, mode_t mode);
+                                  const struct attribute *attr, umode_t mode);
 void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
 void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);
 
@@ -221,7 +221,7 @@ static inline int sysfs_create_files(struct kobject *kobj,
 }
 
 static inline int sysfs_chmod_file(struct kobject *kobj,
-                                   const struct attribute *attr, mode_t mode)
+                                   const struct attribute *attr, umode_t mode)
 {
         return 0;
 }
diff --git a/include/linux/types.h b/include/linux/types.h
index 57a97234bec1..f0ac9bda0f78 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -24,6 +24,7 @@ typedef __kernel_fd_set		fd_set;
 typedef __kernel_dev_t          dev_t;
 typedef __kernel_ino_t          ino_t;
 typedef __kernel_mode_t         mode_t;
+typedef unsigned short          umode_t;
 typedef __kernel_nlink_t        nlink_t;
 typedef __kernel_off_t          off_t;
 typedef __kernel_pid_t          pid_t;
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 5d258c3180ae..7f8d4d61ca47 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -935,7 +935,7 @@ extern struct bus_type usb_bus_type;
  */
 struct usb_class_driver {
         char *name;
-        char *(*devnode)(struct device *dev, mode_t *mode);
+        char *(*devnode)(struct device *dev, umode_t *mode);
         const struct file_operations *fops;
         int minor_base;
 };
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 5994bcc1b017..87f34c3d447d 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -142,7 +142,7 @@ struct iscsi_transport {
         int (*get_iface_param) (struct iscsi_iface *iface,
                                 enum iscsi_param_type param_type,
                                 int param, char *buf);
-        mode_t (*attr_is_visible)(int param_type, int param);
+        umode_t (*attr_is_visible)(int param_type, int param);
         int (*bsg_request)(struct bsg_job *job);
 };
 
diff --git a/include/sound/info.h b/include/sound/info.h
index 5492cc40dc57..9ca1a493d370 100644
--- a/include/sound/info.h
+++ b/include/sound/info.h
@@ -72,7 +72,7 @@ struct snd_info_entry_ops {
 
 struct snd_info_entry {
         const char *name;
-        mode_t mode;
+        umode_t mode;
         long size;
         unsigned short content;
         union {
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 0f6e1d985a3b..b2eee02e0f83 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -325,17 +325,19 @@ static void __init get_fs_names(char *page)
 
 static int __init do_mount_root(char *name, char *fs, int flags, void *data)
 {
+        struct super_block *s;
         int err = sys_mount(name, "/root", fs, flags, data);
         if (err)
                 return err;
 
         sys_chdir((const char __user __force *)"/root");
-        ROOT_DEV = current->fs->pwd.mnt->mnt_sb->s_dev;
+        s = current->fs->pwd.dentry->d_sb;
+        ROOT_DEV = s->s_dev;
         printk(KERN_INFO
                "VFS: Mounted root (%s filesystem)%s on device %u:%u.\n",
-               current->fs->pwd.mnt->mnt_sb->s_type->name,
-               current->fs->pwd.mnt->mnt_sb->s_flags & MS_RDONLY ?
-               " readonly" : "", MAJOR(ROOT_DEV), MINOR(ROOT_DEV));
+               s->s_type->name,
+               s->s_flags & MS_RDONLY ?  " readonly" : "",
+               MAJOR(ROOT_DEV), MINOR(ROOT_DEV));
         return 0;
 }
 
diff --git a/init/initramfs.c b/init/initramfs.c
index 2531811d42cb..8216c303b082 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -22,7 +22,7 @@ static void __init error(char *x)
 
 static __initdata struct hash {
         int ino, minor, major;
-        mode_t mode;
+        umode_t mode;
         struct hash *next;
         char name[N_ALIGN(PATH_MAX)];
 } *head[32];
@@ -35,7 +35,7 @@ static inline int hash(int major, int minor, int ino)
 }
 
 static char __init *find_link(int major, int minor, int ino,
-                              mode_t mode, char *name)
+                              umode_t mode, char *name)
 {
         struct hash **p, *q;
         for (p = head + hash(major, minor, ino); *p; p = &(*p)->next) {
@@ -120,7 +120,7 @@ static __initdata time_t mtime;
 /* cpio header parsing */
 
 static __initdata unsigned long ino, major, minor, nlink;
-static __initdata mode_t mode;
+static __initdata umode_t mode;
 static __initdata unsigned long body_len, name_len;
 static __initdata uid_t uid;
 static __initdata gid_t gid;
@@ -276,7 +276,7 @@ static int __init maybe_link(void)
         return 0;
 }
 
-static void __init clean_path(char *path, mode_t mode)
+static void __init clean_path(char *path, umode_t mode)
 {
         struct stat st;
 
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 5b4293d9819d..9a142a290749 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -108,7 +108,7 @@ static struct ipc_namespace *get_ns_from_inode(struct inode *inode)
 }
 
 static struct inode *mqueue_get_inode(struct super_block *sb,
-                struct ipc_namespace *ipc_ns, int mode,
+                struct ipc_namespace *ipc_ns, umode_t mode,
                 struct mq_attr *attr)
 {
         struct user_struct *u = current_user();
@@ -243,7 +243,6 @@ static struct inode *mqueue_alloc_inode(struct super_block *sb)
 static void mqueue_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(mqueue_inode_cachep, MQUEUE_I(inode));
 }
 
@@ -296,7 +295,7 @@ static void mqueue_evict_inode(struct inode *inode)
 }
 
 static int mqueue_create(struct inode *dir, struct dentry *dentry,
-                                int mode, struct nameidata *nd)
+                                umode_t mode, struct nameidata *nd)
 {
         struct inode *inode;
         struct mq_attr *attr = dentry->d_fsdata;
@@ -611,7 +610,7 @@ static int mq_attr_ok(struct ipc_namespace *ipc_ns, struct mq_attr *attr)
  * Invoked when creating a new queue via sys_mq_open
  */
 static struct file *do_create(struct ipc_namespace *ipc_ns, struct dentry *dir,
-                        struct dentry *dentry, int oflag, mode_t mode,
+                        struct dentry *dentry, int oflag, umode_t mode,
                         struct mq_attr *attr)
 {
         const struct cred *cred = current_cred();
@@ -680,7 +679,7 @@ err:
         return ERR_PTR(ret);
 }
 
-SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode,
+SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode,
                 struct mq_attr __user *, u_attr)
 {
         struct dentry *dentry;
diff --git a/kernel/acct.c b/kernel/acct.c
index 203dfead2e06..02e6167a53b0 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -84,11 +84,10 @@ static void do_acct_process(struct bsd_acct_struct *acct,
  * the cache line to have the data after getting the lock.
  */
 struct bsd_acct_struct {
-        volatile int            active;
-        volatile int            needcheck;
+        int                     active;
+        unsigned long           needcheck;
         struct file             *file;
         struct pid_namespace    *ns;
-        struct timer_list       timer;
         struct list_head        list;
 };
 
@@ -96,15 +95,6 @@ static DEFINE_SPINLOCK(acct_lock);
 static LIST_HEAD(acct_list);
 
 /*
- * Called whenever the timer says to check the free space.
- */
-static void acct_timeout(unsigned long x)
-{
-        struct bsd_acct_struct *acct = (struct bsd_acct_struct *)x;
-        acct->needcheck = 1;
-}
-
-/*
  * Check the amount of free space and suspend/resume accordingly.
  */
 static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
@@ -112,12 +102,12 @@ static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
         struct kstatfs sbuf;
         int res;
         int act;
-        sector_t resume;
-        sector_t suspend;
+        u64 resume;
+        u64 suspend;
 
         spin_lock(&acct_lock);
         res = acct->active;
-        if (!file || !acct->needcheck)
+        if (!file || time_is_before_jiffies(acct->needcheck))
                 goto out;
         spin_unlock(&acct_lock);
 
@@ -127,8 +117,8 @@ static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
         suspend = sbuf.f_blocks * SUSPEND;
         resume = sbuf.f_blocks * RESUME;
 
-        sector_div(suspend, 100);
-        sector_div(resume, 100);
+        do_div(suspend, 100);
+        do_div(resume, 100);
 
         if (sbuf.f_bavail <= suspend)
                 act = -1;
@@ -160,10 +150,7 @@ static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
                 }
         }
 
-        del_timer(&acct->timer);
-        acct->needcheck = 0;
-        acct->timer.expires = jiffies + ACCT_TIMEOUT*HZ;
-        add_timer(&acct->timer);
+        acct->needcheck = jiffies + ACCT_TIMEOUT*HZ;
         res = acct->active;
 out:
         spin_unlock(&acct_lock);
@@ -185,9 +172,7 @@ static void acct_file_reopen(struct bsd_acct_struct *acct, struct file *file,
         if (acct->file) {
                 old_acct = acct->file;
                 old_ns = acct->ns;
-                del_timer(&acct->timer);
                 acct->active = 0;
-                acct->needcheck = 0;
                 acct->file = NULL;
                 acct->ns = NULL;
                 list_del(&acct->list);
@@ -195,13 +180,9 @@ static void acct_file_reopen(struct bsd_acct_struct *acct, struct file *file,
         if (file) {
                 acct->file = file;
                 acct->ns = ns;
-                acct->needcheck = 0;
+                acct->needcheck = jiffies + ACCT_TIMEOUT*HZ;
                 acct->active = 1;
                 list_add(&acct->list, &acct_list);
-                /* It's been deleted if it was used before so this is safe */
-                setup_timer(&acct->timer, acct_timeout, (unsigned long)acct);
-                acct->timer.expires = jiffies + ACCT_TIMEOUT*HZ;
-                add_timer(&acct->timer);
         }
         if (old_acct) {
                 mnt_unpin(old_acct->f_path.mnt);
@@ -334,7 +315,7 @@ void acct_auto_close(struct super_block *sb)
         spin_lock(&acct_lock);
 restart:
         list_for_each_entry(acct, &acct_list, list)
-                if (acct->file && acct->file->f_path.mnt->mnt_sb == sb) {
+                if (acct->file && acct->file->f_path.dentry->d_sb == sb) {
                         acct_file_reopen(acct, NULL, NULL);
                         goto restart;
                 }
@@ -348,7 +329,6 @@ void acct_exit_ns(struct pid_namespace *ns)
         if (acct == NULL)
                 return;
 
-        del_timer_sync(&acct->timer);
         spin_lock(&acct_lock);
         if (acct->file != NULL)
                 acct_file_reopen(acct, NULL, NULL);
@@ -498,7 +478,7 @@ static void do_acct_process(struct bsd_acct_struct *acct,
          * Fill the accounting struct with the needed info as recorded
          * by the different kernel functions.
          */
-        memset((caddr_t)&ac, 0, sizeof(acct_t));
+        memset(&ac, 0, sizeof(acct_t));
 
         ac.ac_version = ACCT_VERSION | ACCT_BYTEORDER;
         strlcpy(ac.ac_comm, current->comm, sizeof(ac.ac_comm));
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 47b7fc1ea893..e7fe2b0d29b3 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -210,12 +210,12 @@ struct audit_context {
                 struct {
                         uid_t                   uid;
                         gid_t                   gid;
-                        mode_t                  mode;
+                        umode_t                 mode;
                         u32                     osid;
                         int                     has_perm;
                         uid_t                   perm_uid;
                         gid_t                   perm_gid;
-                        mode_t                  perm_mode;
+                        umode_t                 perm_mode;
                         unsigned long           qbytes;
                 } ipc;
                 struct {
@@ -234,7 +234,7 @@ struct audit_context {
                 } mq_sendrecv;
                 struct {
                         int                     oflag;
-                        mode_t                  mode;
+                        umode_t                 mode;
                         struct mq_attr          attr;
                 } mq_open;
                 struct {
@@ -308,7 +308,7 @@ static int audit_match_perm(struct audit_context *ctx, int mask)
 static int audit_match_filetype(struct audit_context *ctx, int which)
 {
         unsigned index = which & ~S_IFMT;
-        mode_t mode = which & S_IFMT;
+        umode_t mode = which & S_IFMT;
 
         if (unlikely(!ctx))
                 return 0;
@@ -1249,7 +1249,7 @@ static void show_special(struct audit_context *context, int *call_panic)
         case AUDIT_IPC: {
                 u32 osid = context->ipc.osid;
 
-                audit_log_format(ab, "ouid=%u ogid=%u mode=%#o",
+                audit_log_format(ab, "ouid=%u ogid=%u mode=%#ho",
                          context->ipc.uid, context->ipc.gid, context->ipc.mode);
                 if (osid) {
                         char *ctx = NULL;
@@ -1267,7 +1267,7 @@ static void show_special(struct audit_context *context, int *call_panic)
                         ab = audit_log_start(context, GFP_KERNEL,
                                              AUDIT_IPC_SET_PERM);
                         audit_log_format(ab,
-                                "qbytes=%lx ouid=%u ogid=%u mode=%#o",
+                                "qbytes=%lx ouid=%u ogid=%u mode=%#ho",
                                 context->ipc.qbytes,
                                 context->ipc.perm_uid,
                                 context->ipc.perm_gid,
@@ -1278,7 +1278,7 @@ static void show_special(struct audit_context *context, int *call_panic)
                 break; }
         case AUDIT_MQ_OPEN: {
                 audit_log_format(ab,
-                        "oflag=0x%x mode=%#o mq_flags=0x%lx mq_maxmsg=%ld "
+                        "oflag=0x%x mode=%#ho mq_flags=0x%lx mq_maxmsg=%ld "
                         "mq_msgsize=%ld mq_curmsgs=%ld",
                         context->mq_open.oflag, context->mq_open.mode,
                         context->mq_open.attr.mq_flags,
@@ -1502,7 +1502,7 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
 
                 if (n->ino != (unsigned long)-1) {
                         audit_log_format(ab, " inode=%lu"
-                                         " dev=%02x:%02x mode=%#o"
+                                         " dev=%02x:%02x mode=%#ho"
                                          " ouid=%u ogid=%u rdev=%02x:%02x",
                                          n->ino,
                                          MAJOR(n->dev),
@@ -2160,7 +2160,7 @@ int audit_set_loginuid(struct task_struct *task, uid_t loginuid)
  * @attr: queue attributes
  *
  */
-void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr)
+void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
 {
         struct audit_context *context = current->audit_context;
 
@@ -2260,7 +2260,7 @@ void __audit_ipc_obj(struct kern_ipc_perm *ipcp)
  *
  * Called only after audit_ipc_obj().
  */
-void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
+void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
 {
         struct audit_context *context = current->audit_context;
 
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a184470cf9b5..7cab65f83f1d 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -760,7 +760,7 @@ EXPORT_SYMBOL_GPL(cgroup_unlock);
  * -> cgroup_mkdir.
  */
 
-static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 static struct dentry *cgroup_lookup(struct inode *, struct dentry *, struct nameidata *);
 static int cgroup_rmdir(struct inode *unused_dir, struct dentry *dentry);
 static int cgroup_populate_dir(struct cgroup *cgrp);
@@ -775,7 +775,7 @@ static struct backing_dev_info cgroup_backing_dev_info = {
 static int alloc_css_id(struct cgroup_subsys *ss,
                         struct cgroup *parent, struct cgroup *child);
 
-static struct inode *cgroup_new_inode(mode_t mode, struct super_block *sb)
+static struct inode *cgroup_new_inode(umode_t mode, struct super_block *sb)
 {
         struct inode *inode = new_inode(sb);
 
@@ -1038,9 +1038,9 @@ static int rebind_subsystems(struct cgroupfs_root *root,
         return 0;
 }
 
-static int cgroup_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int cgroup_show_options(struct seq_file *seq, struct dentry *dentry)
 {
-        struct cgroupfs_root *root = vfs->mnt_sb->s_fs_info;
+        struct cgroupfs_root *root = dentry->d_sb->s_fs_info;
         struct cgroup_subsys *ss;
 
         mutex_lock(&cgroup_mutex);
@@ -2585,7 +2585,7 @@ static inline struct cftype *__file_cft(struct file *file)
         return __d_cft(file->f_dentry);
 }
 
-static int cgroup_create_file(struct dentry *dentry, mode_t mode,
+static int cgroup_create_file(struct dentry *dentry, umode_t mode,
                                 struct super_block *sb)
 {
         struct inode *inode;
@@ -2626,7 +2626,7 @@ static int cgroup_create_file(struct dentry *dentry, mode_t mode,
  * @mode: mode to set on new directory.
  */
 static int cgroup_create_dir(struct cgroup *cgrp, struct dentry *dentry,
-                                mode_t mode)
+                                umode_t mode)
 {
         struct dentry *parent;
         int error = 0;
@@ -2653,9 +2653,9 @@ static int cgroup_create_dir(struct cgroup *cgrp, struct dentry *dentry,
  * returns S_IRUGO if it has only a read handler
  * returns S_IWUSR if it has only a write hander
  */
-static mode_t cgroup_file_mode(const struct cftype *cft)
+static umode_t cgroup_file_mode(const struct cftype *cft)
 {
-        mode_t mode = 0;
+        umode_t mode = 0;
 
         if (cft->mode)
                 return cft->mode;
@@ -2678,7 +2678,7 @@ int cgroup_add_file(struct cgroup *cgrp,
         struct dentry *dir = cgrp->dentry;
         struct dentry *dentry;
         int error;
-        mode_t mode;
+        umode_t mode;
 
         char name[MAX_CGROUP_TYPE_NAMELEN + MAX_CFTYPE_NAME + 2] = { 0 };
         if (subsys && !test_bit(ROOT_NOPREFIX, &cgrp->root->flags)) {
@@ -3752,7 +3752,7 @@ static void cgroup_unlock_hierarchy(struct cgroupfs_root *root)
  * Must be called with the mutex on the parent inode held
  */
 static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
-                             mode_t mode)
+                             umode_t mode)
 {
         struct cgroup *cgrp;
         struct cgroupfs_root *root = parent->root;
@@ -3846,7 +3846,7 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
         return err;
 }
 
-static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         struct cgroup *c_parent = dentry->d_parent->d_fsdata;
 
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 11a594c4ba25..3739ecced085 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -18,7 +18,6 @@
 #include <linux/bitops.h>
 #include <linux/genhd.h>
 #include <linux/device.h>
-#include <linux/buffer_head.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 #include <linux/swap.h>
diff --git a/kernel/relay.c b/kernel/relay.c
index 226fade4d727..4335e1d7ee2d 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -302,7 +302,7 @@ static void buf_unmapped_default_callback(struct rchan_buf *buf,
  */
 static struct dentry *create_buf_file_default_callback(const char *filename,
                                                        struct dentry *parent,
-                                                       int mode,
+                                                       umode_t mode,
                                                        struct rchan_buf *buf,
                                                        int *is_global)
 {
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2a4590fabcad..0ac0f811d623 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5176,7 +5176,7 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
 static void
 set_table_entry(struct ctl_table *entry,
                 const char *procname, void *data, int maxlen,
-                mode_t mode, proc_handler *proc_handler)
+                umode_t mode, proc_handler *proc_handler)
 {
         entry->procname = procname;
         entry->data = data;
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 16fc34a0806f..cdea7b56b0c9 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -402,7 +402,7 @@ static int blk_remove_buf_file_callback(struct dentry *dentry)
 
 static struct dentry *blk_create_buf_file_callback(const char *filename,
                                                    struct dentry *parent,
-                                                   int mode,
+                                                   umode_t mode,
                                                    struct rchan_buf *buf,
                                                    int *is_global)
 {
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 91dc4bc8bf72..a3f1bc5d2a00 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4438,7 +4438,7 @@ static const struct file_operations trace_options_core_fops = {
 };
 
 struct dentry *trace_create_file(const char *name,
-                                 mode_t mode,
+                                 umode_t mode,
                                  struct dentry *parent,
                                  void *data,
                                  const struct file_operations *fops)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 2c2657462ac3..b93ecbadad6d 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -312,7 +312,7 @@ void tracing_reset_current(int cpu);
 void tracing_reset_current_online_cpus(void);
 int tracing_open_generic(struct inode *inode, struct file *filp);
 struct dentry *trace_create_file(const char *name,
-                                 mode_t mode,
+                                 umode_t mode,
                                  struct dentry *parent,
                                  void *data,
                                  const struct file_operations *fops);
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index 4f7554025e30..b4801f51b607 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -149,7 +149,7 @@ static int debugfs_ul_get(void *data, u64 *val)
 
 DEFINE_SIMPLE_ATTRIBUTE(fops_ul, debugfs_ul_get, debugfs_ul_set, "%llu\n");
 
-static struct dentry *debugfs_create_ul(const char *name, mode_t mode,
+static struct dentry *debugfs_create_ul(const char *name, umode_t mode,
                                 struct dentry *parent, unsigned long *value)
 {
         return debugfs_create_file(name, mode, parent, value, &fops_ul);
@@ -169,7 +169,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_stacktrace_depth, debugfs_ul_get,
                         debugfs_stacktrace_depth_set, "%llu\n");
 
 static struct dentry *debugfs_create_stacktrace_depth(
-        const char *name, mode_t mode,
+        const char *name, umode_t mode,
         struct dentry *parent, unsigned long *value)
 {
         return debugfs_create_file(name, mode, parent, value,
@@ -193,7 +193,7 @@ static int debugfs_atomic_t_get(void *data, u64 *val)
 DEFINE_SIMPLE_ATTRIBUTE(fops_atomic_t, debugfs_atomic_t_get,
                         debugfs_atomic_t_set, "%lld\n");
 
-static struct dentry *debugfs_create_atomic_t(const char *name, mode_t mode,
+static struct dentry *debugfs_create_atomic_t(const char *name, umode_t mode,
                                 struct dentry *parent, atomic_t *value)
 {
         return debugfs_create_file(name, mode, parent, value, &fops_atomic_t);
@@ -202,7 +202,7 @@ static struct dentry *debugfs_create_atomic_t(const char *name, mode_t mode,
 struct dentry *fault_create_debugfs_attr(const char *name,
                         struct dentry *parent, struct fault_attr *attr)
 {
-        mode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
+        umode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
         struct dentry *dir;
 
         dir = debugfs_create_dir(name, parent);
diff --git a/mm/failslab.c b/mm/failslab.c
index 0dd7b8fec71c..fefaabaab76d 100644
--- a/mm/failslab.c
+++ b/mm/failslab.c
@@ -35,7 +35,7 @@ __setup("failslab=", setup_failslab);
 static int __init failslab_debugfs_init(void)
 {
         struct dentry *dir;
-        mode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
+        umode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
 
         dir = fault_create_debugfs_attr("failslab", NULL, &failslab.attr);
         if (IS_ERR(dir))
diff --git a/mm/filemap.c b/mm/filemap.c
index 5f0a3c91fdac..a0701e6eec10 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1968,7 +1968,7 @@ EXPORT_SYMBOL(read_cache_page);
  */
 int should_remove_suid(struct dentry *dentry)
 {
-        mode_t mode = dentry->d_inode->i_mode;
+        umode_t mode = dentry->d_inode->i_mode;
         int kill = 0;
 
         /* suid always must be killed */
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 50f08241f981..8616ef3025a4 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -32,7 +32,7 @@
 #include <linux/sysctl.h>
 #include <linux/cpu.h>
 #include <linux/syscalls.h>
-#include <linux/buffer_head.h>
+#include <linux/buffer_head.h> /* __set_page_dirty_buffers */
 #include <linux/pagevec.h>
 #include <trace/events/writeback.h>
 
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index bdc804c2d99c..f24bc1c40080 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1386,7 +1386,7 @@ static int should_fail_alloc_page(gfp_t gfp_mask, unsigned int order)
 
 static int __init fail_page_alloc_debugfs(void)
 {
-        mode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
+        umode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
         struct dentry *dir;
 
         dir = fault_create_debugfs_attr("fail_page_alloc", NULL,
diff --git a/mm/shmem.c b/mm/shmem.c
index d6722506d2da..feead1943d92 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1092,7 +1092,7 @@ static int shmem_mmap(struct file *file, struct vm_area_struct *vma)
 }
 
 static struct inode *shmem_get_inode(struct super_block *sb, const struct inode *dir,
-                                     int mode, dev_t dev, unsigned long flags)
+                                     umode_t mode, dev_t dev, unsigned long flags)
 {
         struct inode *inode;
         struct shmem_inode_info *info;
@@ -1456,7 +1456,7 @@ static int shmem_statfs(struct dentry *dentry, struct kstatfs *buf)
  * File creation. Allocate an inode, and we're done..
  */
 static int
-shmem_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+shmem_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         struct inode *inode;
         int error = -ENOSPC;
@@ -1489,7 +1489,7 @@ shmem_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
         return error;
 }
 
-static int shmem_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int shmem_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int error;
 
@@ -1499,7 +1499,7 @@ static int shmem_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         return 0;
 }
 
-static int shmem_create(struct inode *dir, struct dentry *dentry, int mode,
+static int shmem_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 struct nameidata *nd)
 {
         return shmem_mknod(dir, dentry, mode | S_IFREG, 0);
@@ -2118,9 +2118,9 @@ out:
         return error;
 }
 
-static int shmem_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int shmem_show_options(struct seq_file *seq, struct dentry *root)
 {
-        struct shmem_sb_info *sbinfo = SHMEM_SB(vfs->mnt_sb);
+        struct shmem_sb_info *sbinfo = SHMEM_SB(root->d_sb);
 
         if (sbinfo->max_blocks != shmem_default_max_blocks())
                 seq_printf(seq, ",size=%luk",
@@ -2128,7 +2128,7 @@ static int shmem_show_options(struct seq_file *seq, struct vfsmount *vfs)
         if (sbinfo->max_inodes != shmem_default_max_inodes())
                 seq_printf(seq, ",nr_inodes=%lu", sbinfo->max_inodes);
         if (sbinfo->mode != (S_IRWXUGO | S_ISVTX))
-                seq_printf(seq, ",mode=%03o", sbinfo->mode);
+                seq_printf(seq, ",mode=%03ho", sbinfo->mode);
         if (sbinfo->uid != 0)
                 seq_printf(seq, ",uid=%u", sbinfo->uid);
         if (sbinfo->gid != 0)
@@ -2234,13 +2234,12 @@ static struct inode *shmem_alloc_inode(struct super_block *sb)
 static void shmem_destroy_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(shmem_inode_cachep, SHMEM_I(inode));
 }
 
 static void shmem_destroy_inode(struct inode *inode)
 {
-        if ((inode->i_mode & S_IFMT) == S_IFREG)
+        if (S_ISREG(inode->i_mode))
                 mpol_free_shared_policy(&SHMEM_I(inode)->policy);
         call_rcu(&inode->i_rcu, shmem_destroy_callback);
 }
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 78cc4d1f6cce..ea6b32d61873 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -13,7 +13,6 @@
 #include <linux/swapops.h>
 #include <linux/init.h>
 #include <linux/pagemap.h>
-#include <linux/buffer_head.h>
 #include <linux/backing-dev.h>
 #include <linux/pagevec.h>
 #include <linux/migrate.h>
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 72ad836e4fe0..03b56bc3b659 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1778,7 +1778,7 @@ const struct file_operations cache_flush_operations_pipefs = {
 };
 
 int sunrpc_cache_register_pipefs(struct dentry *parent,
-                                 const char *name, mode_t umode,
+                                 const char *name, umode_t umode,
                                  struct cache_detail *cd)
 {
         struct qstr q;
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index bfddd68b31d3..63a7a7add21e 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -185,7 +185,6 @@ static void
 rpc_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(rpc_inode_cachep, RPC_I(inode));
 }
 
@@ -954,7 +953,7 @@ static void rpc_cachedir_depopulate(struct dentry *dentry)
 }
 
 struct dentry *rpc_create_cache_dir(struct dentry *parent, struct qstr *name,
-                                    mode_t umode, struct cache_detail *cd)
+                                    umode_t umode, struct cache_detail *cd)
 {
         return rpc_mkdir_populate(parent, name, umode, NULL,
                         rpc_cachedir_populate, cd);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 7cc3d7b23d1c..aad8fb699989 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -850,7 +850,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
         atomic_set(&addr->refcnt, 1);
 
         if (sun_path[0]) {
-                unsigned int mode;
+                umode_t mode;
                 err = 0;
                 /*
                  * Get the parent directory, calculate the hash for last
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 69ddb47787b2..e39df6d43779 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -165,7 +165,7 @@ static void __init aafs_remove(const char *name)
  *
  * Used aafs_remove to remove entries created with this fn.
  */
-static int __init aafs_create(const char *name, int mask,
+static int __init aafs_create(const char *name, umode_t mask,
                               const struct file_operations *fops)
 {
         struct dentry *dentry;
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 37832026e58a..2c0a0ff41399 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -262,7 +262,7 @@ static int apparmor_path_unlink(struct path *dir, struct dentry *dentry)
 }
 
 static int apparmor_path_mkdir(struct path *dir, struct dentry *dentry,
-                               int mode)
+                               umode_t mode)
 {
         return common_perm_create(OP_MKDIR, dir, dentry, AA_MAY_CREATE,
                                   S_IFDIR);
@@ -274,7 +274,7 @@ static int apparmor_path_rmdir(struct path *dir, struct dentry *dentry)
 }
 
 static int apparmor_path_mknod(struct path *dir, struct dentry *dentry,
-                               int mode, unsigned int dev)
+                               umode_t mode, unsigned int dev)
 {
         return common_perm_create(OP_MKNOD, dir, dentry, AA_MAY_CREATE, mode);
 }
@@ -344,13 +344,12 @@ static int apparmor_path_rename(struct path *old_dir, struct dentry *old_dentry,
         return error;
 }
 
-static int apparmor_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                               mode_t mode)
+static int apparmor_path_chmod(struct path *path, umode_t mode)
 {
-        if (!mediated_filesystem(dentry->d_inode))
+        if (!mediated_filesystem(path->dentry->d_inode))
                 return 0;
 
-        return common_perm_mnt_dentry(OP_CHMOD, mnt, dentry, AA_MAY_CHMOD);
+        return common_perm_mnt_dentry(OP_CHMOD, path->mnt, path->dentry, AA_MAY_CHMOD);
 }
 
 static int apparmor_path_chown(struct path *path, uid_t uid, gid_t gid)
diff --git a/security/apparmor/path.c b/security/apparmor/path.c
index b566eba4a65c..9d070a7c3ffc 100644
--- a/security/apparmor/path.c
+++ b/security/apparmor/path.c
@@ -13,7 +13,6 @@
  */
 
 #include <linux/magic.h>
-#include <linux/mnt_namespace.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
 #include <linux/nsproxy.h>
diff --git a/security/capability.c b/security/capability.c
index 2984ea4f776f..3b5883b7179f 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -125,7 +125,7 @@ static int cap_inode_init_security(struct inode *inode, struct inode *dir,
 }
 
 static int cap_inode_create(struct inode *inode, struct dentry *dentry,
-                            int mask)
+                            umode_t mask)
 {
         return 0;
 }
@@ -148,7 +148,7 @@ static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
 }
 
 static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
-                           int mask)
+                           umode_t mask)
 {
         return 0;
 }
@@ -159,7 +159,7 @@ static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
 }
 
 static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
-                           int mode, dev_t dev)
+                           umode_t mode, dev_t dev)
 {
         return 0;
 }
@@ -235,13 +235,13 @@ static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
 }
 
 #ifdef CONFIG_SECURITY_PATH
-static int cap_path_mknod(struct path *dir, struct dentry *dentry, int mode,
+static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
                           unsigned int dev)
 {
         return 0;
 }
 
-static int cap_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
+static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 {
         return 0;
 }
@@ -279,8 +279,7 @@ static int cap_path_truncate(struct path *path)
         return 0;
 }
 
-static int cap_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                          mode_t mode)
+static int cap_path_chmod(struct path *path, umode_t mode)
 {
         return 0;
 }
diff --git a/security/inode.c b/security/inode.c
index c4df2fbebe6b..90a70a67d835 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -56,7 +56,7 @@ static const struct file_operations default_file_ops = {
         .llseek =       noop_llseek,
 };
 
-static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev)
+static struct inode *get_inode(struct super_block *sb, umode_t mode, dev_t dev)
 {
         struct inode *inode = new_inode(sb);
 
@@ -85,7 +85,7 @@ static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev)
 
 /* SMP-safe */
 static int mknod(struct inode *dir, struct dentry *dentry,
-                         int mode, dev_t dev)
+                         umode_t mode, dev_t dev)
 {
         struct inode *inode;
         int error = -ENOMEM;
@@ -102,7 +102,7 @@ static int mknod(struct inode *dir, struct dentry *dentry,
         return error;
 }
 
-static int mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int res;
 
@@ -113,7 +113,7 @@ static int mkdir(struct inode *dir, struct dentry *dentry, int mode)
         return res;
 }
 
-static int create(struct inode *dir, struct dentry *dentry, int mode)
+static int create(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         mode = (mode & S_IALLUGO) | S_IFREG;
         return mknod(dir, dentry, mode, 0);
@@ -145,7 +145,7 @@ static struct file_system_type fs_type = {
         .kill_sb =      kill_litter_super,
 };
 
-static int create_by_name(const char *name, mode_t mode,
+static int create_by_name(const char *name, umode_t mode,
                           struct dentry *parent,
                           struct dentry **dentry)
 {
@@ -159,12 +159,12 @@ static int create_by_name(const char *name, mode_t mode,
          * have around.
          */
         if (!parent)
-                parent = mount->mnt_sb->s_root;
+                parent = mount->mnt_root;
 
         mutex_lock(&parent->d_inode->i_mutex);
         *dentry = lookup_one_len(name, parent, strlen(name));
         if (!IS_ERR(*dentry)) {
-                if ((mode & S_IFMT) == S_IFDIR)
+                if (S_ISDIR(mode))
                         error = mkdir(parent->d_inode, *dentry, mode);
                 else
                         error = create(parent->d_inode, *dentry, mode);
@@ -205,7 +205,7 @@ static int create_by_name(const char *name, mode_t mode,
  * If securityfs is not enabled in the kernel, the value %-ENODEV is
  * returned.
  */
-struct dentry *securityfs_create_file(const char *name, mode_t mode,
+struct dentry *securityfs_create_file(const char *name, umode_t mode,
                                    struct dentry *parent, void *data,
                                    const struct file_operations *fops)
 {
diff --git a/security/security.c b/security/security.c
index e2f684aeb70c..214502c772ab 100644
--- a/security/security.c
+++ b/security/security.c
@@ -388,7 +388,7 @@ int security_old_inode_init_security(struct inode *inode, struct inode *dir,
 EXPORT_SYMBOL(security_old_inode_init_security);
 
 #ifdef CONFIG_SECURITY_PATH
-int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
+int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
                         unsigned int dev)
 {
         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
@@ -397,7 +397,7 @@ int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 }
 EXPORT_SYMBOL(security_path_mknod);
 
-int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
+int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 {
         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
                 return 0;
@@ -454,12 +454,11 @@ int security_path_truncate(struct path *path)
         return security_ops->path_truncate(path);
 }
 
-int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                        mode_t mode)
+int security_path_chmod(struct path *path, umode_t mode)
 {
-        if (unlikely(IS_PRIVATE(dentry->d_inode)))
+        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
                 return 0;
-        return security_ops->path_chmod(dentry, mnt, mode);
+        return security_ops->path_chmod(path, mode);
 }
 
 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
@@ -475,7 +474,7 @@ int security_path_chroot(struct path *path)
 }
 #endif
 
-int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
+int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         if (unlikely(IS_PRIVATE(dir)))
                 return 0;
@@ -506,7 +505,7 @@ int security_inode_symlink(struct inode *dir, struct dentry *dentry,
         return security_ops->inode_symlink(dir, dentry, old_name);
 }
 
-int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         if (unlikely(IS_PRIVATE(dir)))
                 return 0;
@@ -521,7 +520,7 @@ int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
         return security_ops->inode_rmdir(dir, dentry);
 }
 
-int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         if (unlikely(IS_PRIVATE(dir)))
                 return 0;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 86305c2f555a..7cd4c3affac8 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1740,7 +1740,7 @@ static inline u32 file_mask_to_av(int mode, int mask)
 {
         u32 av = 0;
 
-        if ((mode & S_IFMT) != S_IFDIR) {
+        if (!S_ISDIR(mode)) {
                 if (mask & MAY_EXEC)
                         av |= FILE__EXECUTE;
                 if (mask & MAY_READ)
@@ -2507,7 +2507,7 @@ static int selinux_mount(char *dev_name,
         const struct cred *cred = current_cred();
 
         if (flags & MS_REMOUNT)
-                return superblock_has_perm(cred, path->mnt->mnt_sb,
+                return superblock_has_perm(cred, path->dentry->d_sb,
                                            FILESYSTEM__REMOUNT, NULL);
         else
                 return path_has_perm(cred, path, FILE__MOUNTON);
@@ -2598,7 +2598,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
         return 0;
 }
 
-static int selinux_inode_create(struct inode *dir, struct dentry *dentry, int mask)
+static int selinux_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         return may_create(dir, dentry, SECCLASS_FILE);
 }
@@ -2618,7 +2618,7 @@ static int selinux_inode_symlink(struct inode *dir, struct dentry *dentry, const
         return may_create(dir, dentry, SECCLASS_LNK_FILE);
 }
 
-static int selinux_inode_mkdir(struct inode *dir, struct dentry *dentry, int mask)
+static int selinux_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mask)
 {
         return may_create(dir, dentry, SECCLASS_DIR);
 }
@@ -2628,7 +2628,7 @@ static int selinux_inode_rmdir(struct inode *dir, struct dentry *dentry)
         return may_link(dir, dentry, MAY_RMDIR);
 }
 
-static int selinux_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+static int selinux_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         return may_create(dir, dentry, inode_mode_to_security_class(mode));
 }
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 7db62b48eb42..e8af5b0ba80f 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -406,7 +406,7 @@ static int smack_sb_statfs(struct dentry *dentry)
 static int smack_sb_mount(char *dev_name, struct path *path,
                           char *type, unsigned long flags, void *data)
 {
-        struct superblock_smack *sbp = path->mnt->mnt_sb->s_security;
+        struct superblock_smack *sbp = path->dentry->d_sb->s_security;
         struct smk_audit_info ad;
 
         smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
@@ -435,7 +435,7 @@ static int smack_sb_umount(struct vfsmount *mnt, int flags)
         smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
         smk_ad_setfield_u_fs_path(&ad, path);
 
-        sbp = mnt->mnt_sb->s_security;
+        sbp = path.dentry->d_sb->s_security;
         return smk_curacc(sbp->smk_floor, MAY_WRITE, &ad);
 }
 
diff --git a/security/tomoyo/audit.c b/security/tomoyo/audit.c
index 075c3a6d1649..5ca47ea3049f 100644
--- a/security/tomoyo/audit.c
+++ b/security/tomoyo/audit.c
@@ -112,7 +112,7 @@ out:
  *
  * Returns file type string.
  */
-static inline const char *tomoyo_filetype(const mode_t mode)
+static inline const char *tomoyo_filetype(const umode_t mode)
 {
         switch (mode & S_IFMT) {
         case S_IFREG:
@@ -180,7 +180,7 @@ static char *tomoyo_print_header(struct tomoyo_request_info *r)
         for (i = 0; i < TOMOYO_MAX_PATH_STAT; i++) {
                 struct tomoyo_mini_stat *stat;
                 unsigned int dev;
-                mode_t mode;
+                umode_t mode;
                 if (!obj->stat_valid[i])
                         continue;
                 stat = &obj->stat[i];
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index ed311d7a8ce0..deeab7be5b97 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -564,7 +564,7 @@ struct tomoyo_mini_stat {
         uid_t uid;
         gid_t gid;
         ino_t ino;
-        mode_t mode;
+        umode_t mode;
         dev_t dev;
         dev_t rdev;
 };
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index d9f3ced8756e..80a09c37cac8 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -4,15 +4,8 @@
  * Copyright (C) 2005-2011  NTT DATA CORPORATION
  */
 
-#include <linux/types.h>
-#include <linux/mount.h>
-#include <linux/mnt_namespace.h>
-#include <linux/fs_struct.h>
-#include <linux/magic.h>
-#include <linux/slab.h>
-#include <net/sock.h>
 #include "common.h"
-#include "../../fs/internal.h"
+#include <linux/magic.h>
 
 /**
  * tomoyo_encode2 - Encode binary string to ascii string.
diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c
index 2672ac4f3beb..482b2a5f48f0 100644
--- a/security/tomoyo/securityfs_if.c
+++ b/security/tomoyo/securityfs_if.c
@@ -224,7 +224,7 @@ static const struct file_operations tomoyo_operations = {
  *
  * Returns nothing.
  */
-static void __init tomoyo_create_entry(const char *name, const mode_t mode,
+static void __init tomoyo_create_entry(const char *name, const umode_t mode,
                                        struct dentry *parent, const u8 key)
 {
         securityfs_create_file(name, mode, parent, ((u8 *) NULL) + key,
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 4b327b691745..620d37c159a3 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -186,7 +186,7 @@ static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry)
  * Returns 0 on success, negative value otherwise.
  */
 static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
-                             int mode)
+                             umode_t mode)
 {
         struct path path = { parent->mnt, dentry };
         return tomoyo_path_number_perm(TOMOYO_TYPE_MKDIR, &path,
@@ -234,7 +234,7 @@ static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
  * Returns 0 on success, negative value otherwise.
  */
 static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
-                             int mode, unsigned int dev)
+                             umode_t mode, unsigned int dev)
 {
         struct path path = { parent->mnt, dentry };
         int type = TOMOYO_TYPE_CREATE;
@@ -353,17 +353,14 @@ static int tomoyo_file_ioctl(struct file *file, unsigned int cmd,
 /**
  * tomoyo_path_chmod - Target for security_path_chmod().
  *
- * @dentry: Pointer to "struct dentry".
- * @mnt:    Pointer to "struct vfsmount".
- * @mode:   DAC permission mode.
+ * @path: Pointer to "struct path".
+ * @mode: DAC permission mode.
  *
  * Returns 0 on success, negative value otherwise.
  */
-static int tomoyo_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                             mode_t mode)
+static int tomoyo_path_chmod(struct path *path, umode_t mode)
 {
-        struct path path = { mnt, dentry };
-        return tomoyo_path_number_perm(TOMOYO_TYPE_CHMOD, &path,
+        return tomoyo_path_number_perm(TOMOYO_TYPE_CHMOD, path,
                                        mode & S_IALLUGO);
 }
 
diff --git a/sound/sound_core.c b/sound/sound_core.c
index 6ce277860fd7..c6e81fb928e9 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -29,7 +29,7 @@ MODULE_DESCRIPTION("Core sound module");
 MODULE_AUTHOR("Alan Cox");
 MODULE_LICENSE("GPL");
 
-static char *sound_devnode(struct device *dev, mode_t *mode)
+static char *sound_devnode(struct device *dev, umode_t *mode)
 {
         if (MAJOR(dev->devt) == SOUND_MAJOR)
                 return NULL;