Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (69 commits)
  fix handling of offsets in cris eeprom.c, get rid of fake on-stack files
  get rid of home-grown mutex in cris eeprom.c
  switch ecryptfs_write() to struct inode *, kill on-stack fake files
  switch ecryptfs_get_locked_page() to struct inode *
  simplify access to ecryptfs inodes in ->readpage() and friends
  AFS: Don't put struct file on the stack
  Ban ecryptfs over ecryptfs
  logfs: replace inode uid,gid,mode initialization with helper function
  ufs: replace inode uid,gid,mode initialization with helper function
  udf: replace inode uid,gid,mode init with helper
  ubifs: replace inode uid,gid,mode initialization with helper function
  sysv: replace inode uid,gid,mode initialization with helper function
  reiserfs: replace inode uid,gid,mode initialization with helper function
  ramfs: replace inode uid,gid,mode initialization with helper function
  omfs: replace inode uid,gid,mode initialization with helper function
  bfs: replace inode uid,gid,mode initialization with helper function
  ocfs2: replace inode uid,gid,mode initialization with helper function
  nilfs2: replace inode uid,gid,mode initialization with helper function
  minix: replace inode uid,gid,mode init with helper
  ext4: replace inode uid,gid,mode init with helper
  ...

Trivial conflict in fs/fs-writeback.c (mark bitfields unsigned)

119 files changed, 907 insertions, 1294 deletions

diff --git a/arch/cris/arch-v10/drivers/eeprom.c b/arch/cris/arch-v10/drivers/eeprom.c
index 1f2ae909d3e..c3405507a3d 100644
--- a/arch/cris/arch-v10/drivers/eeprom.c
+++ b/arch/cris/arch-v10/drivers/eeprom.c
@@ -73,8 +73,7 @@ struct eeprom_type
   int adapt_state; /* 1 = To high , 0 = Even, -1 = To low */
   
   /* this one is to keep the read/write operations atomic */
-  wait_queue_head_t wait_q;
-  volatile int busy;
+  struct mutex lock;
   int retry_cnt_addr; /* Used to keep track of number of retries for
                          adaptive timing adjustments */
   int retry_cnt_read;
@@ -115,8 +114,7 @@ const struct file_operations eeprom_fops =
 
 int __init eeprom_init(void)
 {
-  init_waitqueue_head(&eeprom.wait_q);
-  eeprom.busy = 0;
+  mutex_init(&eeprom.lock);
 
 #ifdef CONFIG_ETRAX_I2C_EEPROM_PROBE
 #define EETEXT "Found"
@@ -439,10 +437,7 @@ static loff_t eeprom_lseek(struct file * file, loff_t offset, int orig)
 
 static int eeprom_read_buf(loff_t addr, char * buf, int count)
 {
-  struct file f;
-
-  f.f_pos = addr;
-  return eeprom_read(&f, buf, count, &addr);
+  return eeprom_read(NULL, buf, count, &addr);
 }
 
 
@@ -452,7 +447,7 @@ static int eeprom_read_buf(loff_t addr, char * buf, int count)
 static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t *off)
 {
   int read=0;
-  unsigned long p = file->f_pos;
+  unsigned long p = *off;
 
   unsigned char page;
 
@@ -461,12 +456,9 @@ static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t
     return -EFAULT;
   }
   
-  wait_event_interruptible(eeprom.wait_q, !eeprom.busy);
-  if (signal_pending(current))
+  if (mutex_lock_interruptible(&eeprom.lock))
     return -EINTR;
 
-  eeprom.busy++;
-
   page = (unsigned char) (p >> 8);
   
   if(!eeprom_address(p))
@@ -476,8 +468,7 @@ static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t
     i2c_stop();
     
     /* don't forget to wake them up */
-    eeprom.busy--;
-    wake_up_interruptible(&eeprom.wait_q);  
+    mutex_unlock(&eeprom.lock);
     return -EFAULT;
   }
 
@@ -501,11 +492,10 @@ static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t
   
   if(read > 0)
   {
-    file->f_pos += read;
+    *off += read;
   }
 
-  eeprom.busy--;
-  wake_up_interruptible(&eeprom.wait_q);
+  mutex_unlock(&eeprom.lock);
   return read;
 }
 
@@ -513,11 +503,7 @@ static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t
 
 static int eeprom_write_buf(loff_t addr, const char * buf, int count)
 {
-  struct file f;
-
-  f.f_pos = addr;
-  
-  return eeprom_write(&f, buf, count, &addr);
+  return eeprom_write(NULL, buf, count, &addr);
 }
 
 
@@ -534,16 +520,14 @@ static ssize_t eeprom_write(struct file * file, const char * buf, size_t count,
     return -EFAULT;
   }
 
-  wait_event_interruptible(eeprom.wait_q, !eeprom.busy);
   /* bail out if we get interrupted */
-  if (signal_pending(current))
+  if (mutex_lock_interruptible(&eeprom.lock))
     return -EINTR;
-  eeprom.busy++;
   for(i = 0; (i < EEPROM_RETRIES) && (restart > 0); i++)
   {
     restart = 0;
     written = 0;
-    p = file->f_pos;
+    p = *off;
    
     
     while( (written < count) && (p < eeprom.size))
@@ -556,8 +540,7 @@ static ssize_t eeprom_write(struct file * file, const char * buf, size_t count,
         i2c_stop();
         
         /* don't forget to wake them up */
-        eeprom.busy--;
-        wake_up_interruptible(&eeprom.wait_q);
+        mutex_unlock(&eeprom.lock);
         return -EFAULT;
       }
 #ifdef EEPROM_ADAPTIVE_TIMING      
@@ -669,12 +652,11 @@ static ssize_t eeprom_write(struct file * file, const char * buf, size_t count,
     } /* while */
   } /* for  */
 
-  eeprom.busy--;
-  wake_up_interruptible(&eeprom.wait_q);
-  if (written == 0 && file->f_pos >= eeprom.size){
+  mutex_unlock(&eeprom.lock);
+  if (written == 0 && p >= eeprom.size){
     return -ENOSPC;
   }
-  file->f_pos += written;
+  *off = p;
   return written;
 }
 
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index a90e83c9be9..6120922f459 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -485,7 +485,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
                                 goto out;
                         }
 
-                        ret = vfs_fsync(file, file->f_path.dentry, 0);
+                        ret = vfs_fsync(file, 0);
                         if (unlikely(ret)) {
                                 ret = -EIO;
                                 goto out;
@@ -495,7 +495,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
                 ret = lo_send(lo, bio, pos);
 
                 if (barrier && !ret) {
-                        ret = vfs_fsync(file, file->f_path.dentry, 0);
+                        ret = vfs_fsync(file, 0);
                         if (unlikely(ret))
                                 ret = -EIO;
                 }
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 23d1d54b12a..1742435ce3a 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1699,7 +1699,7 @@ int bitmap_create(mddev_t *mddev)
                  * and bypass the page cache, we must sync the file
                  * first.
                  */
-                vfs_fsync(file, file->f_dentry, 1);
+                vfs_fsync(file, 1);
         }
         /* read superblock from bitmap file (this sets mddev->bitmap_info.chunksize) */
         if (!mddev->bitmap_info.external)
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 868d8ee8675..04c462ff0ea 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -654,7 +654,7 @@ static int fsg_lun_fsync_sub(struct fsg_lun *curlun)
 
         if (curlun->ro || !filp)
                 return 0;
-        return vfs_fsync(filp, filp->f_path.dentry, 1);
+        return vfs_fsync(filp, 1);
 }
 
 static void store_cdrom_address(u8 *dest, int msf, u32 addr)
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index f2434fc9d2c..6d4d86187c5 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -253,9 +253,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
                 return ERR_PTR(-ENOMEM);
         }
 
-        inode->i_mode = mode;
-        inode->i_uid = current_fsuid();
-        inode->i_gid = current_fsgid();
+        inode_init_owner(inode, NULL, mode);
         inode->i_blocks = 0;
         inode->i_rdev = 0;
         inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
diff --git a/fs/Makefile b/fs/Makefile
index 97f340f14ba..e6ec1d309b1 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -11,7 +11,7 @@ obj-y :=	open.o read_write.o file_table.o super.o \
                 attr.o bad_inode.o file.o filesystems.o namespace.o \
                 seq_file.o xattr.o libfs.o fs-writeback.o \
                 pnode.o drop_caches.o splice.o sync.o utimes.o \
-                stack.o fs_struct.o
+                stack.o fs_struct.o statfs.o
 
 ifeq ($(CONFIG_BLOCK),y)
 obj-y +=        buffer.o bio.o block_dev.o direct-io.o mpage.o ioprio.o
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index adc1cb771b5..b42d5cc1d6d 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -189,13 +189,9 @@ static struct page *afs_dir_get_page(struct inode *dir, unsigned long index,
                                      struct key *key)
 {
         struct page *page;
-        struct file file = {
-                .private_data = key,
-        };
-
         _enter("{%lu},%lu", dir->i_ino, index);
 
-        page = read_mapping_page(dir->i_mapping, index, &file);
+        page = read_cache_page(dir->i_mapping, index, afs_page_filler, key);
         if (!IS_ERR(page)) {
                 kmap(page);
                 if (!PageChecked(page))
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 0df9bc2b724..14d89fa58fe 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -121,34 +121,19 @@ static void afs_file_readpage_read_complete(struct page *page,
 #endif
 
 /*
- * AFS read page from file, directory or symlink
+ * read page from file, directory or symlink, given a key to use
  */
-static int afs_readpage(struct file *file, struct page *page)
+int afs_page_filler(void *data, struct page *page)
 {
-        struct afs_vnode *vnode;
-        struct inode *inode;
-        struct key *key;
+        struct inode *inode = page->mapping->host;
+        struct afs_vnode *vnode = AFS_FS_I(inode);
+        struct key *key = data;
         size_t len;
         off_t offset;
         int ret;
 
-        inode = page->mapping->host;
-
-        if (file) {
-                key = file->private_data;
-                ASSERT(key != NULL);
-        } else {
-                key = afs_request_key(AFS_FS_S(inode->i_sb)->volume->cell);
-                if (IS_ERR(key)) {
-                        ret = PTR_ERR(key);
-                        goto error_nokey;
-                }
-        }
-
         _enter("{%x},{%lu},{%lu}", key_serial(key), inode->i_ino, page->index);
 
-        vnode = AFS_FS_I(inode);
-
         BUG_ON(!PageLocked(page));
 
         ret = -ESTALE;
@@ -214,31 +199,56 @@ static int afs_readpage(struct file *file, struct page *page)
                 unlock_page(page);
         }
 
-        if (!file)
-                key_put(key);
         _leave(" = 0");
         return 0;
 
 error:
         SetPageError(page);
         unlock_page(page);
-        if (!file)
-                key_put(key);
-error_nokey:
         _leave(" = %d", ret);
         return ret;
 }
 
 /*
+ * read page from file, directory or symlink, given a file to nominate the key
+ * to be used
+ */
+static int afs_readpage(struct file *file, struct page *page)
+{
+        struct key *key;
+        int ret;
+
+        if (file) {
+                key = file->private_data;
+                ASSERT(key != NULL);
+                ret = afs_page_filler(key, page);
+        } else {
+                struct inode *inode = page->mapping->host;
+                key = afs_request_key(AFS_FS_S(inode->i_sb)->volume->cell);
+                if (IS_ERR(key)) {
+                        ret = PTR_ERR(key);
+                } else {
+                        ret = afs_page_filler(key, page);
+                        key_put(key);
+                }
+        }
+        return ret;
+}
+
+/*
  * read a set of pages
  */
 static int afs_readpages(struct file *file, struct address_space *mapping,
                          struct list_head *pages, unsigned nr_pages)
 {
+        struct key *key = file->private_data;
         struct afs_vnode *vnode;
         int ret = 0;
 
-        _enter(",{%lu},,%d", mapping->host->i_ino, nr_pages);
+        _enter("{%d},{%lu},,%d",
+               key_serial(key), mapping->host->i_ino, nr_pages);
+
+        ASSERT(key != NULL);
 
         vnode = AFS_FS_I(mapping->host);
         if (vnode->flags & AFS_VNODE_DELETED) {
@@ -279,7 +289,7 @@ static int afs_readpages(struct file *file, struct address_space *mapping,
         }
 
         /* load the missing pages from the network */
-        ret = read_cache_pages(mapping, pages, (void *) afs_readpage, file);
+        ret = read_cache_pages(mapping, pages, afs_page_filler, key);
 
         _leave(" = %d [netting]", ret);
         return ret;
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index a10f2582844..807f284cc75 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -494,6 +494,7 @@ extern const struct file_operations afs_file_operations;
 
 extern int afs_open(struct inode *, struct file *);
 extern int afs_release(struct inode *, struct file *);
+extern int afs_page_filler(void *, struct page *);
 
 /*
  * flock.c
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index b3feddc4f7d..a9e23039ea3 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -49,9 +49,6 @@ static unsigned long afs_mntpt_expiry_timeout = 10 * 60;
  */
 int afs_mntpt_check_symlink(struct afs_vnode *vnode, struct key *key)
 {
-        struct file file = {
-                .private_data = key,
-        };
         struct page *page;
         size_t size;
         char *buf;
@@ -61,7 +58,8 @@ int afs_mntpt_check_symlink(struct afs_vnode *vnode, struct key *key)
                vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique);
 
         /* read the contents of the symlink into the pagecache */
-        page = read_mapping_page(AFS_VNODE_TO_I(vnode)->i_mapping, 0, &file);
+        page = read_cache_page(AFS_VNODE_TO_I(vnode)->i_mapping, 0,
+                               afs_page_filler, key);
         if (IS_ERR(page)) {
                 ret = PTR_ERR(page);
                 goto out;
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index e4b75d6eda8..9bd4b3876c9 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -205,7 +205,7 @@ static struct inode *anon_inode_mkinode(void)
          * that it already _is_ on the dirty list.
          */
         inode->i_state = I_DIRTY;
-        inode->i_mode = S_IRUSR | S_IWUSR;
+        inode->i_mode = S_IFREG | S_IRUSR | S_IWUSR;
         inode->i_uid = current_fsuid();
         inode->i_gid = current_fsgid();
         inode->i_flags |= S_PRIVATE;
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 1e41aadb106..8f73841fc97 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -105,14 +105,12 @@ static int bfs_create(struct inode *dir, struct dentry *dentry, int mode,
         }
         set_bit(ino, info->si_imap);
         info->si_freei--;
-        inode->i_uid = current_fsuid();
-        inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current_fsgid();
+        inode_init_owner(inode, dir, mode);
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
         inode->i_blocks = 0;
         inode->i_op = &bfs_file_inops;
         inode->i_fop = &bfs_file_operations;
         inode->i_mapping->a_ops = &bfs_aops;
-        inode->i_mode = mode;
         inode->i_ino = ino;
         BFS_I(inode)->i_dsk_ino = ino;
         BFS_I(inode)->i_sblock = 0;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 55dcb7884f4..26e5f502662 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -245,37 +245,14 @@ struct super_block *freeze_bdev(struct block_device *bdev)
         sb = get_active_super(bdev);
         if (!sb)
                 goto out;
-        if (sb->s_flags & MS_RDONLY) {
-                sb->s_frozen = SB_FREEZE_TRANS;
-                up_write(&sb->s_umount);
+        error = freeze_super(sb);
+        if (error) {
+                deactivate_super(sb);
+                bdev->bd_fsfreeze_count--;
                 mutex_unlock(&bdev->bd_fsfreeze_mutex);
-                return sb;
-        }
-
-        sb->s_frozen = SB_FREEZE_WRITE;
-        smp_wmb();
-
-        sync_filesystem(sb);
-
-        sb->s_frozen = SB_FREEZE_TRANS;
-        smp_wmb();
-
-        sync_blockdev(sb->s_bdev);
-
-        if (sb->s_op->freeze_fs) {
-                error = sb->s_op->freeze_fs(sb);
-                if (error) {
-                        printk(KERN_ERR
-                                "VFS:Filesystem freeze failed\n");
-                        sb->s_frozen = SB_UNFROZEN;
-                        deactivate_locked_super(sb);
-                        bdev->bd_fsfreeze_count--;
-                        mutex_unlock(&bdev->bd_fsfreeze_mutex);
-                        return ERR_PTR(error);
-                }
+                return ERR_PTR(error);
         }
-        up_write(&sb->s_umount);
-
+        deactivate_super(sb);
  out:
         sync_blockdev(bdev);
         mutex_unlock(&bdev->bd_fsfreeze_mutex);
@@ -296,40 +273,22 @@ int thaw_bdev(struct block_device *bdev, struct super_block *sb)
 
         mutex_lock(&bdev->bd_fsfreeze_mutex);
         if (!bdev->bd_fsfreeze_count)
-                goto out_unlock;
+                goto out;
 
         error = 0;
         if (--bdev->bd_fsfreeze_count > 0)
-                goto out_unlock;
+                goto out;
 
         if (!sb)
-                goto out_unlock;
-
-        BUG_ON(sb->s_bdev != bdev);
-        down_write(&sb->s_umount);
-        if (sb->s_flags & MS_RDONLY)
-                goto out_unfrozen;
-
-        if (sb->s_op->unfreeze_fs) {
-                error = sb->s_op->unfreeze_fs(sb);
-                if (error) {
-                        printk(KERN_ERR
-                                "VFS:Filesystem thaw failed\n");
-                        sb->s_frozen = SB_FREEZE_TRANS;
-                        bdev->bd_fsfreeze_count++;
-                        mutex_unlock(&bdev->bd_fsfreeze_mutex);
-                        return error;
-                }
-        }
-
-out_unfrozen:
-        sb->s_frozen = SB_UNFROZEN;
-        smp_wmb();
-        wake_up(&sb->s_wait_unfrozen);
+                goto out;
 
-        if (sb)
-                deactivate_locked_super(sb);
-out_unlock:
+        error = thaw_super(sb);
+        if (error) {
+                bdev->bd_fsfreeze_count++;
+                mutex_unlock(&bdev->bd_fsfreeze_mutex);
+                return error;
+        }
+out:
         mutex_unlock(&bdev->bd_fsfreeze_mutex);
         return 0;
 }
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 6ef7b26724e..8d432cd9d58 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -282,14 +282,14 @@ int btrfs_acl_chmod(struct inode *inode)
         return ret;
 }
 
-struct xattr_handler btrfs_xattr_acl_default_handler = {
+const struct xattr_handler btrfs_xattr_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .get    = btrfs_xattr_acl_get,
         .set    = btrfs_xattr_acl_set,
 };
 
-struct xattr_handler btrfs_xattr_acl_access_handler = {
+const struct xattr_handler btrfs_xattr_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_ACCESS,
         .get    = btrfs_xattr_acl_get,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2bfdc641d4e..d601629b85d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4121,16 +4121,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
         if (ret != 0)
                 goto fail;
 
-        inode->i_uid = current_fsuid();
-
-        if (dir && (dir->i_mode & S_ISGID)) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else
-                inode->i_gid = current_fsgid();
-
-        inode->i_mode = mode;
+        inode_init_owner(inode, dir, mode);
         inode->i_ino = objectid;
         inode_set_bytes(inode, 0);
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 193b58f7d3f..59acd3eb288 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -282,7 +282,7 @@ err:
  * List of handlers for synthetic system.* attributes.  All real ondisk
  * attributes are handled directly.
  */
-struct xattr_handler *btrfs_xattr_handlers[] = {
+const struct xattr_handler *btrfs_xattr_handlers[] = {
 #ifdef CONFIG_BTRFS_FS_POSIX_ACL
         &btrfs_xattr_acl_access_handler,
         &btrfs_xattr_acl_default_handler,
diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h
index 721efa0346e..7a43fd640bb 100644
--- a/fs/btrfs/xattr.h
+++ b/fs/btrfs/xattr.h
@@ -21,9 +21,9 @@
 
 #include <linux/xattr.h>
 
-extern struct xattr_handler btrfs_xattr_acl_access_handler;
-extern struct xattr_handler btrfs_xattr_acl_default_handler;
-extern struct xattr_handler *btrfs_xattr_handlers[];
+extern const struct xattr_handler btrfs_xattr_acl_access_handler;
+extern const struct xattr_handler btrfs_xattr_acl_default_handler;
+extern const struct xattr_handler *btrfs_xattr_handlers[];
 
 extern ssize_t __btrfs_getxattr(struct inode *inode, const char *name,
                 void *buffer, size_t size);
diff --git a/fs/buffer.c b/fs/buffer.c
index 08e422d5699..e8aa7081d25 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -561,26 +561,17 @@ repeat:
         return err;
 }
 
-static void do_thaw_all(struct work_struct *work)
+static void do_thaw_one(struct super_block *sb, void *unused)
 {
-        struct super_block *sb;
         char b[BDEVNAME_SIZE];
+        while (sb->s_bdev && !thaw_bdev(sb->s_bdev, sb))
+                printk(KERN_WARNING "Emergency Thaw on %s\n",
+                       bdevname(sb->s_bdev, b));
+}
 
-        spin_lock(&sb_lock);
-restart:
-        list_for_each_entry(sb, &super_blocks, s_list) {
-                sb->s_count++;
-                spin_unlock(&sb_lock);
-                down_read(&sb->s_umount);
-                while (sb->s_bdev && !thaw_bdev(sb->s_bdev, sb))
-                        printk(KERN_WARNING "Emergency Thaw on %s\n",
-                               bdevname(sb->s_bdev, b));
-                up_read(&sb->s_umount);
-                spin_lock(&sb_lock);
-                if (__put_super_and_need_restart(sb))
-                        goto restart;
-        }
-        spin_unlock(&sb_lock);
+static void do_thaw_all(struct work_struct *work)
+{
+        iterate_supers(do_thaw_one, NULL);
         kfree(work);
         printk(KERN_WARNING "Emergency Thaw complete\n");
 }
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index ed6f19721d6..7d634938edc 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -844,8 +844,7 @@ retry_snap:
                 if ((ret >= 0 || ret == -EIOCBQUEUED) &&
                     ((file->f_flags & O_SYNC) || IS_SYNC(file->f_mapping->host)
                      || ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_NEARFULL))) {
-                        err = vfs_fsync_range(file, file->f_path.dentry,
-                                              pos, pos + ret - 1, 1);
+                        err = vfs_fsync_range(file, pos, pos + ret - 1, 1);
                         if (err < 0)
                                 ret = err;
                 }
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 110857ba926..9307bbee6fb 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -952,8 +952,7 @@ static int ceph_get_sb(struct file_system_type *fs_type,
 
 out_splat:
         ceph_mdsc_close_sessions(&client->mdsc);
-        up_write(&sb->s_umount);
-        deactivate_super(sb);
+        deactivate_locked_super(sb);
         goto out_final;
 
 out:
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 4c813f2cdc5..7196077b168 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -217,7 +217,7 @@ int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync)
         BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
         host_file = cfi->cfi_container;
 
-        err = vfs_fsync(host_file, host_file->f_path.dentry, datasync);
+        err = vfs_fsync(host_file, datasync);
         if ( !err && !datasync ) {
                 lock_kernel();
                 err = venus_fsync(coda_inode->i_sb, coda_i2f(coda_inode));
diff --git a/fs/dcache.c b/fs/dcache.c
index f1358e5c3a5..d96047b4a63 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -536,7 +536,7 @@ restart:
  */
 static void prune_dcache(int count)
 {
-        struct super_block *sb;
+        struct super_block *sb, *n;
         int w_count;
         int unused = dentry_stat.nr_unused;
         int prune_ratio;
@@ -545,13 +545,14 @@ static void prune_dcache(int count)
         if (unused == 0 || count == 0)
                 return;
         spin_lock(&dcache_lock);
-restart:
         if (count >= unused)
                 prune_ratio = 1;
         else
                 prune_ratio = unused / count;
         spin_lock(&sb_lock);
-        list_for_each_entry(sb, &super_blocks, s_list) {
+        list_for_each_entry_safe(sb, n, &super_blocks, s_list) {
+                if (list_empty(&sb->s_instances))
+                        continue;
                 if (sb->s_nr_dentry_unused == 0)
                         continue;
                 sb->s_count++;
@@ -590,14 +591,10 @@ restart:
                 }
                 spin_lock(&sb_lock);
                 count -= pruned;
-                /*
-                 * restart only when sb is no longer on the list and
-                 * we have more work to do.
-                 */
-                if (__put_super_and_need_restart(sb) && count > 0) {
-                        spin_unlock(&sb_lock);
-                        goto restart;
-                }
+                __put_super(sb);
+                /* more work left to do? */
+                if (count <= 0)
+                        break;
         }
         spin_unlock(&sb_lock);
         spin_unlock(&dcache_lock);
@@ -1529,6 +1526,7 @@ void d_delete(struct dentry * dentry)
         spin_lock(&dentry->d_lock);
         isdir = S_ISDIR(dentry->d_inode->i_mode);
         if (atomic_read(&dentry->d_count) == 1) {
+                dentry->d_flags &= ~DCACHE_CANT_MOUNT;
                 dentry_iput(dentry);
                 fsnotify_nameremove(dentry, isdir);
                 return;
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 0120247b41c..8b3ffd5b523 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -384,18 +384,15 @@ static int devpts_get_sb(struct file_system_type *fs_type,
                 s->s_flags |= MS_ACTIVE;
         }
 
-        simple_set_mnt(mnt, s);
-
         memcpy(&(DEVPTS_SB(s))->mount_opts, &opts, sizeof(opts));
 
         error = mknod_ptmx(s);
         if (error)
-                goto out_dput;
+                goto out_undo_sget;
 
-        return 0;
+        simple_set_mnt(mnt, s);
 
-out_dput:
-        dput(s->s_root); /* undo dget() in simple_set_mnt() */
+        return 0;
 
 out_undo_sget:
         deactivate_locked_super(s);
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 31f4b0e6d72..83c4f600786 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -12,7 +12,7 @@
 /* A global variable is a bit ugly, but it keeps the code simple */
 int sysctl_drop_caches;
 
-static void drop_pagecache_sb(struct super_block *sb)
+static void drop_pagecache_sb(struct super_block *sb, void *unused)
 {
         struct inode *inode, *toput_inode = NULL;
 
@@ -33,26 +33,6 @@ static void drop_pagecache_sb(struct super_block *sb)
         iput(toput_inode);
 }
 
-static void drop_pagecache(void)
-{
-        struct super_block *sb;
-
-        spin_lock(&sb_lock);
-restart:
-        list_for_each_entry(sb, &super_blocks, s_list) {
-                sb->s_count++;
-                spin_unlock(&sb_lock);
-                down_read(&sb->s_umount);
-                if (sb->s_root)
-                        drop_pagecache_sb(sb);
-                up_read(&sb->s_umount);
-                spin_lock(&sb_lock);
-                if (__put_super_and_need_restart(sb))
-                        goto restart;
-        }
-        spin_unlock(&sb_lock);
-}
-
 static void drop_slab(void)
 {
         int nr_objects;
@@ -68,7 +48,7 @@ int drop_caches_sysctl_handler(ctl_table *table, int write,
         proc_dointvec_minmax(table, write, buffer, length, ppos);
         if (write) {
                 if (sysctl_drop_caches & 1)
-                        drop_pagecache();
+                        iterate_supers(drop_pagecache_sb, NULL);
                 if (sysctl_drop_caches & 2)
                         drop_slab();
         }
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index bfc2e0f78f0..0032a9f5a3a 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -731,15 +731,14 @@ int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data,
 int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
                                       struct page *page_for_lower,
                                       size_t offset_in_page, size_t size);
-int ecryptfs_write(struct file *ecryptfs_file, char *data, loff_t offset,
-                   size_t size);
+int ecryptfs_write(struct inode *inode, char *data, loff_t offset, size_t size);
 int ecryptfs_read_lower(char *data, loff_t offset, size_t size,
                         struct inode *ecryptfs_inode);
 int ecryptfs_read_lower_page_segment(struct page *page_for_ecryptfs,
                                      pgoff_t page_index,
                                      size_t offset_in_page, size_t size,
                                      struct inode *ecryptfs_inode);
-struct page *ecryptfs_get_locked_page(struct file *file, loff_t index);
+struct page *ecryptfs_get_locked_page(struct inode *inode, loff_t index);
 int ecryptfs_exorcise_daemon(struct ecryptfs_daemon *daemon);
 int ecryptfs_find_daemon_by_euid(struct ecryptfs_daemon **daemon, uid_t euid,
                                  struct user_namespace *user_ns);
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index e7440a6f5eb..3bdddbcc785 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -276,9 +276,7 @@ static int ecryptfs_release(struct inode *inode, struct file *file)
 static int
 ecryptfs_fsync(struct file *file, struct dentry *dentry, int datasync)
 {
-        return vfs_fsync(ecryptfs_file_to_lower(file),
-                         ecryptfs_dentry_to_lower(dentry),
-                         datasync);
+        return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
 }
 
 static int ecryptfs_fasync(int fd, struct file *file, int flag)
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index e2d4418affa..65dee2f336a 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -142,19 +142,10 @@ out:
 static int grow_file(struct dentry *ecryptfs_dentry)
 {
         struct inode *ecryptfs_inode = ecryptfs_dentry->d_inode;
-        struct file fake_file;
-        struct ecryptfs_file_info tmp_file_info;
         char zero_virt[] = { 0x00 };
         int rc = 0;
 
-        memset(&fake_file, 0, sizeof(fake_file));
-        fake_file.f_path.dentry = ecryptfs_dentry;
-        memset(&tmp_file_info, 0, sizeof(tmp_file_info));
-        ecryptfs_set_file_private(&fake_file, &tmp_file_info);
-        ecryptfs_set_file_lower(
-                &fake_file,
-                ecryptfs_inode_to_private(ecryptfs_inode)->lower_file);
-        rc = ecryptfs_write(&fake_file, zero_virt, 0, 1);
+        rc = ecryptfs_write(ecryptfs_inode, zero_virt, 0, 1);
         i_size_write(ecryptfs_inode, 0);
         rc = ecryptfs_write_inode_size_to_metadata(ecryptfs_inode);
         ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat.flags |=
@@ -784,8 +775,6 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
 {
         int rc = 0;
         struct inode *inode = dentry->d_inode;
-        struct dentry *lower_dentry;
-        struct file fake_ecryptfs_file;
         struct ecryptfs_crypt_stat *crypt_stat;
         loff_t i_size = i_size_read(inode);
         loff_t lower_size_before_truncate;
@@ -796,23 +785,6 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
                 goto out;
         }
         crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat;
-        /* Set up a fake ecryptfs file, this is used to interface with
-         * the file in the underlying filesystem so that the
-         * truncation has an effect there as well. */
-        memset(&fake_ecryptfs_file, 0, sizeof(fake_ecryptfs_file));
-        fake_ecryptfs_file.f_path.dentry = dentry;
-        /* Released at out_free: label */
-        ecryptfs_set_file_private(&fake_ecryptfs_file,
-                                  kmem_cache_alloc(ecryptfs_file_info_cache,
-                                                   GFP_KERNEL));
-        if (unlikely(!ecryptfs_file_to_private(&fake_ecryptfs_file))) {
-                rc = -ENOMEM;
-                goto out;
-        }
-        lower_dentry = ecryptfs_dentry_to_lower(dentry);
-        ecryptfs_set_file_lower(
-                &fake_ecryptfs_file,
-                ecryptfs_inode_to_private(dentry->d_inode)->lower_file);
         /* Switch on growing or shrinking file */
         if (ia->ia_size > i_size) {
                 char zero[] = { 0x00 };
@@ -822,7 +794,7 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
                  * this triggers code that will fill in 0's throughout
                  * the intermediate portion of the previous end of the
                  * file and the new and of the file */
-                rc = ecryptfs_write(&fake_ecryptfs_file, zero,
+                rc = ecryptfs_write(inode, zero,
                                     (ia->ia_size - 1), 1);
         } else { /* ia->ia_size < i_size_read(inode) */
                 /* We're chopping off all the pages down to the page
@@ -835,10 +807,10 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
                 if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
                         rc = vmtruncate(inode, ia->ia_size);
                         if (rc)
-                                goto out_free;
+                                goto out;
                         lower_ia->ia_size = ia->ia_size;
                         lower_ia->ia_valid |= ATTR_SIZE;
-                        goto out_free;
+                        goto out;
                 }
                 if (num_zeros) {
                         char *zeros_virt;
@@ -846,16 +818,16 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
                         zeros_virt = kzalloc(num_zeros, GFP_KERNEL);
                         if (!zeros_virt) {
                                 rc = -ENOMEM;
-                                goto out_free;
+                                goto out;
                         }
-                        rc = ecryptfs_write(&fake_ecryptfs_file, zeros_virt,
+                        rc = ecryptfs_write(inode, zeros_virt,
                                             ia->ia_size, num_zeros);
                         kfree(zeros_virt);
                         if (rc) {
                                 printk(KERN_ERR "Error attempting to zero out "
                                        "the remainder of the end page on "
                                        "reducing truncate; rc = [%d]\n", rc);
-                                goto out_free;
+                                goto out;
                         }
                 }
                 vmtruncate(inode, ia->ia_size);
@@ -864,7 +836,7 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
                         printk(KERN_ERR "Problem with "
                                "ecryptfs_write_inode_size_to_metadata; "
                                "rc = [%d]\n", rc);
-                        goto out_free;
+                        goto out;
                 }
                 /* We are reducing the size of the ecryptfs file, and need to
                  * know if we need to reduce the size of the lower file. */
@@ -878,10 +850,6 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
                 } else
                         lower_ia->ia_valid &= ~ATTR_SIZE;
         }
-out_free:
-        if (ecryptfs_file_to_private(&fake_ecryptfs_file))
-                kmem_cache_free(ecryptfs_file_info_cache,
-                                ecryptfs_file_to_private(&fake_ecryptfs_file));
 out:
         return rc;
 }
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 760983d0f25..cbd4e18adb2 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -281,7 +281,7 @@ static void ecryptfs_init_mount_crypt_stat(
  *
  * Returns zero on success; non-zero on error
  */
-static int ecryptfs_parse_options(struct super_block *sb, char *options)
+static int ecryptfs_parse_options(struct ecryptfs_sb_info *sbi, char *options)
 {
         char *p;
         int rc = 0;
@@ -293,7 +293,7 @@ static int ecryptfs_parse_options(struct super_block *sb, char *options)
         int fn_cipher_key_bytes;
         int fn_cipher_key_bytes_set = 0;
         struct ecryptfs_mount_crypt_stat *mount_crypt_stat =
-                &ecryptfs_superblock_to_private(sb)->mount_crypt_stat;
+                &sbi->mount_crypt_stat;
         substring_t args[MAX_OPT_ARGS];
         int token;
         char *sig_src;
@@ -483,68 +483,7 @@ out:
 }
 
 struct kmem_cache *ecryptfs_sb_info_cache;
-
-/**
- * ecryptfs_fill_super
- * @sb: The ecryptfs super block
- * @raw_data: The options passed to mount
- * @silent: Not used but required by function prototype
- *
- * Sets up what we can of the sb, rest is done in ecryptfs_read_super
- *
- * Returns zero on success; non-zero otherwise
- */
-static int
-ecryptfs_fill_super(struct super_block *sb, void *raw_data, int silent)
-{
-        struct ecryptfs_sb_info *esi;
-        int rc = 0;
-
-        /* Released in ecryptfs_put_super() */
-        ecryptfs_set_superblock_private(sb,
-                                        kmem_cache_zalloc(ecryptfs_sb_info_cache,
-                                                         GFP_KERNEL));
-        esi = ecryptfs_superblock_to_private(sb);
-        if (!esi) {
-                ecryptfs_printk(KERN_WARNING, "Out of memory\n");
-                rc = -ENOMEM;
-                goto out;
-        }
-
-        rc = bdi_setup_and_register(&esi->bdi, "ecryptfs", BDI_CAP_MAP_COPY);
-        if (rc)
-                goto out;
-
-        sb->s_bdi = &esi->bdi;
-        sb->s_op = &ecryptfs_sops;
-        /* Released through deactivate_super(sb) from get_sb_nodev */
-        sb->s_root = d_alloc(NULL, &(const struct qstr) {
-                             .hash = 0,.name = "/",.len = 1});
-        if (!sb->s_root) {
-                ecryptfs_printk(KERN_ERR, "d_alloc failed\n");
-                rc = -ENOMEM;
-                goto out;
-        }
-        sb->s_root->d_op = &ecryptfs_dops;
-        sb->s_root->d_sb = sb;
-        sb->s_root->d_parent = sb->s_root;
-        /* Released in d_release when dput(sb->s_root) is called */
-        /* through deactivate_super(sb) from get_sb_nodev() */
-        ecryptfs_set_dentry_private(sb->s_root,
-                                    kmem_cache_zalloc(ecryptfs_dentry_info_cache,
-                                                     GFP_KERNEL));
-        if (!ecryptfs_dentry_to_private(sb->s_root)) {
-                ecryptfs_printk(KERN_ERR,
-                                "dentry_info_cache alloc failed\n");
-                rc = -ENOMEM;
-                goto out;
-        }
-        rc = 0;
-out:
-        /* Should be able to rely on deactivate_super called from
-         * get_sb_nodev */
-        return rc;
-}
+static struct file_system_type ecryptfs_fs_type;
 
 /**
  * ecryptfs_read_super
@@ -565,6 +504,13 @@ static int ecryptfs_read_super(struct super_block *sb, const char *dev_name)
                 ecryptfs_printk(KERN_WARNING, "path_lookup() failed\n");
                 goto out;
         }
+        if (path.dentry->d_sb->s_type == &ecryptfs_fs_type) {
+                rc = -EINVAL;
+                printk(KERN_ERR "Mount on filesystem of type "
+                        "eCryptfs explicitly disallowed due to "
+                        "known incompatibilities\n");
+                goto out_free;
+        }
         ecryptfs_set_superblock_lower(sb, path.dentry->d_sb);
         sb->s_maxbytes = path.dentry->d_sb->s_maxbytes;
         sb->s_blocksize = path.dentry->d_sb->s_blocksize;
@@ -588,11 +534,8 @@ out:
  * @dev_name: The path to mount over
  * @raw_data: The options passed into the kernel
  *
- * The whole ecryptfs_get_sb process is broken into 4 functions:
+ * The whole ecryptfs_get_sb process is broken into 3 functions:
  * ecryptfs_parse_options(): handle options passed to ecryptfs, if any
- * ecryptfs_fill_super(): used by get_sb_nodev, fills out the super_block
- *                        with as much information as it can before needing
- *                        the lower filesystem.
  * ecryptfs_read_super(): this accesses the lower filesystem and uses
  *                        ecryptfs_interpose to perform most of the linking
  * ecryptfs_interpose(): links the lower filesystem into ecryptfs (inode.c)
@@ -601,30 +544,78 @@ static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags,
                         const char *dev_name, void *raw_data,
                         struct vfsmount *mnt)
 {
+        struct super_block *s;
+        struct ecryptfs_sb_info *sbi;
+        struct ecryptfs_dentry_info *root_info;
+        const char *err = "Getting sb failed";
         int rc;
-        struct super_block *sb;
 
-        rc = get_sb_nodev(fs_type, flags, raw_data, ecryptfs_fill_super, mnt);
-        if (rc < 0) {
-                printk(KERN_ERR "Getting sb failed; rc = [%d]\n", rc);
+        sbi = kmem_cache_zalloc(ecryptfs_sb_info_cache, GFP_KERNEL);
+        if (!sbi) {
+                rc = -ENOMEM;
                 goto out;
         }
-        sb = mnt->mnt_sb;
-        rc = ecryptfs_parse_options(sb, raw_data);
+
+        rc = ecryptfs_parse_options(sbi, raw_data);
         if (rc) {
-                printk(KERN_ERR "Error parsing options; rc = [%d]\n", rc);
-                goto out_abort;
+                err = "Error parsing options";
+                goto out;
+        }
+
+        s = sget(fs_type, NULL, set_anon_super, NULL);
+        if (IS_ERR(s)) {
+                rc = PTR_ERR(s);
+                goto out;
         }
-        rc = ecryptfs_read_super(sb, dev_name);
+
+        s->s_flags = flags;
+        rc = bdi_setup_and_register(&sbi->bdi, "ecryptfs", BDI_CAP_MAP_COPY);
         if (rc) {
-                printk(KERN_ERR "Reading sb failed; rc = [%d]\n", rc);
-                goto out_abort;
+                deactivate_locked_super(s);
+                goto out;
         }
-        goto out;
-out_abort:
-        dput(sb->s_root); /* aka mnt->mnt_root, as set by get_sb_nodev() */
-        deactivate_locked_super(sb);
+
+        ecryptfs_set_superblock_private(s, sbi);
+        s->s_bdi = &sbi->bdi;
+
+        /* ->kill_sb() will take care of sbi after that point */
+        sbi = NULL;
+        s->s_op = &ecryptfs_sops;
+
+        rc = -ENOMEM;
+        s->s_root = d_alloc(NULL, &(const struct qstr) {
+                             .hash = 0,.name = "/",.len = 1});
+        if (!s->s_root) {
+                deactivate_locked_super(s);
+                goto out;
+        }
+        s->s_root->d_op = &ecryptfs_dops;
+        s->s_root->d_sb = s;
+        s->s_root->d_parent = s->s_root;
+
+        root_info = kmem_cache_zalloc(ecryptfs_dentry_info_cache, GFP_KERNEL);
+        if (!root_info) {
+                deactivate_locked_super(s);
+                goto out;
+        }
+        /* ->kill_sb() will take care of root_info */
+        ecryptfs_set_dentry_private(s->s_root, root_info);
+        s->s_flags |= MS_ACTIVE;
+        rc = ecryptfs_read_super(s, dev_name);
+        if (rc) {
+                deactivate_locked_super(s);
+                err = "Reading sb failed";
+                goto out;
+        }
+        simple_set_mnt(mnt, s);
+        return 0;
+
 out:
+        if (sbi) {
+                ecryptfs_destroy_mount_crypt_stat(&sbi->mount_crypt_stat);
+                kmem_cache_free(ecryptfs_sb_info_cache, sbi);
+        }
+        printk(KERN_ERR "%s; rc = [%d]\n", err, rc);
         return rc;
 }
 
@@ -633,11 +624,16 @@ out:
  * @sb: The ecryptfs super block
  *
  * Used to bring the superblock down and free the private data.
- * Private data is free'd in ecryptfs_put_super()
  */
 static void ecryptfs_kill_block_super(struct super_block *sb)
 {
-        generic_shutdown_super(sb);
+        struct ecryptfs_sb_info *sb_info = ecryptfs_superblock_to_private(sb);
+        kill_anon_super(sb);
+        if (!sb_info)
+                return;
+        ecryptfs_destroy_mount_crypt_stat(&sb_info->mount_crypt_stat);
+        bdi_destroy(&sb_info->bdi);
+        kmem_cache_free(ecryptfs_sb_info_cache, sb_info);
 }
 
 static struct file_system_type ecryptfs_fs_type = {
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 2ee9a3a7b68..b1d82756544 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -44,17 +44,9 @@
  * Returns locked and up-to-date page (if ok), with increased
  * refcnt.
  */
-struct page *ecryptfs_get_locked_page(struct file *file, loff_t index)
+struct page *ecryptfs_get_locked_page(struct inode *inode, loff_t index)
 {
-        struct dentry *dentry;
-        struct inode *inode;
-        struct address_space *mapping;
-        struct page *page;
-
-        dentry = file->f_path.dentry;
-        inode = dentry->d_inode;
-        mapping = inode->i_mapping;
-        page = read_mapping_page(mapping, index, (void *)file);
+        struct page *page = read_mapping_page(inode->i_mapping, index, NULL);
         if (!IS_ERR(page))
                 lock_page(page);
         return page;
@@ -198,7 +190,7 @@ out:
 static int ecryptfs_readpage(struct file *file, struct page *page)
 {
         struct ecryptfs_crypt_stat *crypt_stat =
-                &ecryptfs_inode_to_private(file->f_path.dentry->d_inode)->crypt_stat;
+                &ecryptfs_inode_to_private(page->mapping->host)->crypt_stat;
         int rc = 0;
 
         if (!crypt_stat
@@ -300,8 +292,7 @@ static int ecryptfs_write_begin(struct file *file,
 
         if (!PageUptodate(page)) {
                 struct ecryptfs_crypt_stat *crypt_stat =
-                        &ecryptfs_inode_to_private(
-                                file->f_path.dentry->d_inode)->crypt_stat;
+                        &ecryptfs_inode_to_private(mapping->host)->crypt_stat;
 
                 if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)
                     || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) {
@@ -487,7 +478,7 @@ static int ecryptfs_write_end(struct file *file,
         unsigned to = from + copied;
         struct inode *ecryptfs_inode = mapping->host;
         struct ecryptfs_crypt_stat *crypt_stat =
-                &ecryptfs_inode_to_private(file->f_path.dentry->d_inode)->crypt_stat;
+                &ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;
         int rc;
 
         if (crypt_stat->flags & ECRYPTFS_NEW_FILE) {
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 0cc4fafd655..db184ef15d3 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -93,7 +93,7 @@ int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
 
 /**
  * ecryptfs_write
- * @ecryptfs_file: The eCryptfs file into which to write
+ * @ecryptfs_inode: The eCryptfs file into which to write
  * @data: Virtual address where data to write is located
  * @offset: Offset in the eCryptfs file at which to begin writing the
  *          data from @data
@@ -109,12 +109,11 @@ int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
  *
  * Returns zero on success; non-zero otherwise
  */
-int ecryptfs_write(struct file *ecryptfs_file, char *data, loff_t offset,
+int ecryptfs_write(struct inode *ecryptfs_inode, char *data, loff_t offset,
                    size_t size)
 {
         struct page *ecryptfs_page;
         struct ecryptfs_crypt_stat *crypt_stat;
-        struct inode *ecryptfs_inode = ecryptfs_file->f_dentry->d_inode;
         char *ecryptfs_page_virt;
         loff_t ecryptfs_file_size = i_size_read(ecryptfs_inode);
         loff_t data_offset = 0;
@@ -145,7 +144,7 @@ int ecryptfs_write(struct file *ecryptfs_file, char *data, loff_t offset,
                         if (num_bytes > total_remaining_zeros)
                                 num_bytes = total_remaining_zeros;
                 }
-                ecryptfs_page = ecryptfs_get_locked_page(ecryptfs_file,
+                ecryptfs_page = ecryptfs_get_locked_page(ecryptfs_inode,
                                                          ecryptfs_page_idx);
                 if (IS_ERR(ecryptfs_page)) {
                         rc = PTR_ERR(ecryptfs_page);
@@ -302,10 +301,10 @@ int ecryptfs_read_lower_page_segment(struct page *page_for_ecryptfs,
 int ecryptfs_read(char *data, loff_t offset, size_t size,
                   struct file *ecryptfs_file)
 {
+        struct inode *ecryptfs_inode = ecryptfs_file->f_dentry->d_inode;
         struct page *ecryptfs_page;
         char *ecryptfs_page_virt;
-        loff_t ecryptfs_file_size =
-                i_size_read(ecryptfs_file->f_dentry->d_inode);
+        loff_t ecryptfs_file_size = i_size_read(ecryptfs_inode);
         loff_t data_offset = 0;
         loff_t pos;
         int rc = 0;
@@ -327,7 +326,7 @@ int ecryptfs_read(char *data, loff_t offset, size_t size,
 
                 if (num_bytes > total_remaining_bytes)
                         num_bytes = total_remaining_bytes;
-                ecryptfs_page = ecryptfs_get_locked_page(ecryptfs_file,
+                ecryptfs_page = ecryptfs_get_locked_page(ecryptfs_inode,
                                                          ecryptfs_page_idx);
                 if (IS_ERR(ecryptfs_page)) {
                         rc = PTR_ERR(ecryptfs_page);
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 0c0ae491d23..0435886e4a9 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -109,27 +109,6 @@ void ecryptfs_init_inode(struct inode *inode, struct inode *lower_inode)
 }
 
 /**
- * ecryptfs_put_super
- * @sb: Pointer to the ecryptfs super block
- *
- * Final actions when unmounting a file system.
- * This will handle deallocation and release of our private data.
- */
-static void ecryptfs_put_super(struct super_block *sb)
-{
-        struct ecryptfs_sb_info *sb_info = ecryptfs_superblock_to_private(sb);
-
-        lock_kernel();
-
-        ecryptfs_destroy_mount_crypt_stat(&sb_info->mount_crypt_stat);
-        bdi_destroy(&sb_info->bdi);
-        kmem_cache_free(ecryptfs_sb_info_cache, sb_info);
-        ecryptfs_set_superblock_private(sb, NULL);
-
-        unlock_kernel();
-}
-
-/**
  * ecryptfs_statfs
  * @sb: The ecryptfs super block
  * @buf: The struct kstatfs to fill in with stats
@@ -203,7 +182,6 @@ const struct super_operations ecryptfs_sops = {
         .alloc_inode = ecryptfs_alloc_inode,
         .destroy_inode = ecryptfs_destroy_inode,
         .drop_inode = generic_delete_inode,
-        .put_super = ecryptfs_put_super,
         .statfs = ecryptfs_statfs,
         .remount_fs = NULL,
         .clear_inode = ecryptfs_clear_inode,
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 76d2a79ef93..d7c6afa7975 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -1123,16 +1123,7 @@ struct inode *exofs_new_inode(struct inode *dir, int mode)
         sbi = sb->s_fs_info;
 
         sb->s_dirt = 1;
-        inode->i_uid = current->cred->fsuid;
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else {
-                inode->i_gid = current->cred->fsgid;
-        }
-        inode->i_mode = mode;
-
+        inode_init_owner(inode, dir, mode);
         inode->i_ino = sbi->s_nextid++;
         inode->i_blkbits = EXOFS_BLKSHIFT;
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index a99e54318c3..ca7e2a0ed98 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -420,7 +420,7 @@ release_and_out:
         return error;
 }
 
-struct xattr_handler ext2_xattr_acl_access_handler = {
+const struct xattr_handler ext2_xattr_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_ACCESS,
         .list   = ext2_xattr_list_acl_access,
@@ -428,7 +428,7 @@ struct xattr_handler ext2_xattr_acl_access_handler = {
         .set    = ext2_xattr_set_acl,
 };
 
-struct xattr_handler ext2_xattr_acl_default_handler = {
+const struct xattr_handler ext2_xattr_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .list   = ext2_xattr_list_acl_default,
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index f0c5286f934..938dbc739d0 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -549,16 +549,12 @@ got:
 
         sb->s_dirt = 1;
         mark_buffer_dirty(bh2);
-        inode->i_uid = current_fsuid();
-        if (test_opt (sb, GRPID))
+        if (test_opt(sb, GRPID)) {
+                inode->i_mode = mode;
+                inode->i_uid = current_fsuid();
                 inode->i_gid = dir->i_gid;
-        else if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
         } else
-                inode->i_gid = current_fsgid();
-        inode->i_mode = mode;
+                inode_init_owner(inode, dir, mode);
 
         inode->i_ino = ino;
         inode->i_blocks = 0;
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 3b96045a00c..7c3915780b1 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -101,7 +101,7 @@ static void ext2_xattr_rehash(struct ext2_xattr_header *,
 
 static struct mb_cache *ext2_xattr_cache;
 
-static struct xattr_handler *ext2_xattr_handler_map[] = {
+static const struct xattr_handler *ext2_xattr_handler_map[] = {
         [EXT2_XATTR_INDEX_USER]              = &ext2_xattr_user_handler,
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
         [EXT2_XATTR_INDEX_POSIX_ACL_ACCESS]  = &ext2_xattr_acl_access_handler,
@@ -113,7 +113,7 @@ static struct xattr_handler *ext2_xattr_handler_map[] = {
 #endif
 };
 
-struct xattr_handler *ext2_xattr_handlers[] = {
+const struct xattr_handler *ext2_xattr_handlers[] = {
         &ext2_xattr_user_handler,
         &ext2_xattr_trusted_handler,
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
@@ -126,10 +126,10 @@ struct xattr_handler *ext2_xattr_handlers[] = {
         NULL
 };
 
-static inline struct xattr_handler *
+static inline const struct xattr_handler *
 ext2_xattr_handler(int name_index)
 {
-        struct xattr_handler *handler = NULL;
+        const struct xattr_handler *handler = NULL;
 
         if (name_index > 0 && name_index < ARRAY_SIZE(ext2_xattr_handler_map))
                 handler = ext2_xattr_handler_map[name_index];
@@ -298,7 +298,7 @@ bad_block:	ext2_error(inode->i_sb, "ext2_xattr_list",
         /* list the attribute names */
         for (entry = FIRST_ENTRY(bh); !IS_LAST_ENTRY(entry);
              entry = EXT2_XATTR_NEXT(entry)) {
-                struct xattr_handler *handler =
+                const struct xattr_handler *handler =
                         ext2_xattr_handler(entry->e_name_index);
 
                 if (handler) {
diff --git a/fs/ext2/xattr.h b/fs/ext2/xattr.h
index bf8175b2ced..a1a1c218461 100644
--- a/fs/ext2/xattr.h
+++ b/fs/ext2/xattr.h
@@ -55,11 +55,11 @@ struct ext2_xattr_entry {
 
 # ifdef CONFIG_EXT2_FS_XATTR
 
-extern struct xattr_handler ext2_xattr_user_handler;
-extern struct xattr_handler ext2_xattr_trusted_handler;
-extern struct xattr_handler ext2_xattr_acl_access_handler;
-extern struct xattr_handler ext2_xattr_acl_default_handler;
-extern struct xattr_handler ext2_xattr_security_handler;
+extern const struct xattr_handler ext2_xattr_user_handler;
+extern const struct xattr_handler ext2_xattr_trusted_handler;
+extern const struct xattr_handler ext2_xattr_acl_access_handler;
+extern const struct xattr_handler ext2_xattr_acl_default_handler;
+extern const struct xattr_handler ext2_xattr_security_handler;
 
 extern ssize_t ext2_listxattr(struct dentry *, char *, size_t);
 
@@ -72,7 +72,7 @@ extern void ext2_xattr_put_super(struct super_block *);
 extern int init_ext2_xattr(void);
 extern void exit_ext2_xattr(void);
 
-extern struct xattr_handler *ext2_xattr_handlers[];
+extern const struct xattr_handler *ext2_xattr_handlers[];
 
 # else  /* CONFIG_EXT2_FS_XATTR */
 
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c
index b118c6383c6..3004e15d5da 100644
--- a/fs/ext2/xattr_security.c
+++ b/fs/ext2/xattr_security.c
@@ -67,7 +67,7 @@ ext2_init_security(struct inode *inode, struct inode *dir)
         return err;
 }
 
-struct xattr_handler ext2_xattr_security_handler = {
+const struct xattr_handler ext2_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .list   = ext2_xattr_security_list,
         .get    = ext2_xattr_security_get,
diff --git a/fs/ext2/xattr_trusted.c b/fs/ext2/xattr_trusted.c
index 2a26d71f477..667e46a8d62 100644
--- a/fs/ext2/xattr_trusted.c
+++ b/fs/ext2/xattr_trusted.c
@@ -50,7 +50,7 @@ ext2_xattr_trusted_set(struct dentry *dentry, const char *name,
                               value, size, flags);
 }
 
-struct xattr_handler ext2_xattr_trusted_handler = {
+const struct xattr_handler ext2_xattr_trusted_handler = {
         .prefix = XATTR_TRUSTED_PREFIX,
         .list   = ext2_xattr_trusted_list,
         .get    = ext2_xattr_trusted_get,
diff --git a/fs/ext2/xattr_user.c b/fs/ext2/xattr_user.c
index 3f6caf3684b..099d20f4716 100644
--- a/fs/ext2/xattr_user.c
+++ b/fs/ext2/xattr_user.c
@@ -54,7 +54,7 @@ ext2_xattr_user_set(struct dentry *dentry, const char *name,
                               name, value, size, flags);
 }
 
-struct xattr_handler ext2_xattr_user_handler = {
+const struct xattr_handler ext2_xattr_user_handler = {
         .prefix = XATTR_USER_PREFIX,
         .list   = ext2_xattr_user_list,
         .get    = ext2_xattr_user_get,
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 82ba3415866..01552abbca3 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -456,7 +456,7 @@ release_and_out:
         return error;
 }
 
-struct xattr_handler ext3_xattr_acl_access_handler = {
+const struct xattr_handler ext3_xattr_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_ACCESS,
         .list   = ext3_xattr_list_acl_access,
@@ -464,7 +464,7 @@ struct xattr_handler ext3_xattr_acl_access_handler = {
         .set    = ext3_xattr_set_acl,
 };
 
-struct xattr_handler ext3_xattr_acl_default_handler = {
+const struct xattr_handler ext3_xattr_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .list   = ext3_xattr_list_acl_default,
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 0d0e97ed3ff..498021eb88f 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -538,16 +538,13 @@ got:
         if (S_ISDIR(mode))
                 percpu_counter_inc(&sbi->s_dirs_counter);
 
-        inode->i_uid = current_fsuid();
-        if (test_opt (sb, GRPID))
-                inode->i_gid = dir->i_gid;
-        else if (dir->i_mode & S_ISGID) {
+
+        if (test_opt(sb, GRPID)) {
+                inode->i_mode = mode;
+                inode->i_uid = current_fsuid();
                 inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
         } else
-                inode->i_gid = current_fsgid();
-        inode->i_mode = mode;
+                inode_init_owner(inode, dir, mode);
 
         inode->i_ino = ino;
         /* This is the optimal IO size (for stat), not the fs block size */
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 534a94c3a93..71fb8d65e54 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -104,7 +104,7 @@ static int ext3_xattr_list(struct dentry *dentry, char *buffer,
 
 static struct mb_cache *ext3_xattr_cache;
 
-static struct xattr_handler *ext3_xattr_handler_map[] = {
+static const struct xattr_handler *ext3_xattr_handler_map[] = {
         [EXT3_XATTR_INDEX_USER]              = &ext3_xattr_user_handler,
 #ifdef CONFIG_EXT3_FS_POSIX_ACL
         [EXT3_XATTR_INDEX_POSIX_ACL_ACCESS]  = &ext3_xattr_acl_access_handler,
@@ -116,7 +116,7 @@ static struct xattr_handler *ext3_xattr_handler_map[] = {
 #endif
 };
 
-struct xattr_handler *ext3_xattr_handlers[] = {
+const struct xattr_handler *ext3_xattr_handlers[] = {
         &ext3_xattr_user_handler,
         &ext3_xattr_trusted_handler,
 #ifdef CONFIG_EXT3_FS_POSIX_ACL
@@ -129,10 +129,10 @@ struct xattr_handler *ext3_xattr_handlers[] = {
         NULL
 };
 
-static inline struct xattr_handler *
+static inline const struct xattr_handler *
 ext3_xattr_handler(int name_index)
 {
-        struct xattr_handler *handler = NULL;
+        const struct xattr_handler *handler = NULL;
 
         if (name_index > 0 && name_index < ARRAY_SIZE(ext3_xattr_handler_map))
                 handler = ext3_xattr_handler_map[name_index];
@@ -338,7 +338,7 @@ ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
         size_t rest = buffer_size;
 
         for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
-                struct xattr_handler *handler =
+                const struct xattr_handler *handler =
                         ext3_xattr_handler(entry->e_name_index);
 
                 if (handler) {
diff --git a/fs/ext3/xattr.h b/fs/ext3/xattr.h
index 148a4dfc82a..377fe720116 100644
--- a/fs/ext3/xattr.h
+++ b/fs/ext3/xattr.h
@@ -58,11 +58,11 @@ struct ext3_xattr_entry {
 
 # ifdef CONFIG_EXT3_FS_XATTR
 
-extern struct xattr_handler ext3_xattr_user_handler;
-extern struct xattr_handler ext3_xattr_trusted_handler;
-extern struct xattr_handler ext3_xattr_acl_access_handler;
-extern struct xattr_handler ext3_xattr_acl_default_handler;
-extern struct xattr_handler ext3_xattr_security_handler;
+extern const struct xattr_handler ext3_xattr_user_handler;
+extern const struct xattr_handler ext3_xattr_trusted_handler;
+extern const struct xattr_handler ext3_xattr_acl_access_handler;
+extern const struct xattr_handler ext3_xattr_acl_default_handler;
+extern const struct xattr_handler ext3_xattr_security_handler;
 
 extern ssize_t ext3_listxattr(struct dentry *, char *, size_t);
 
@@ -76,7 +76,7 @@ extern void ext3_xattr_put_super(struct super_block *);
 extern int init_ext3_xattr(void);
 extern void exit_ext3_xattr(void);
 
-extern struct xattr_handler *ext3_xattr_handlers[];
+extern const struct xattr_handler *ext3_xattr_handlers[];
 
 # else  /* CONFIG_EXT3_FS_XATTR */
 
diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c
index 3af91f476df..03a99bfc59f 100644
--- a/fs/ext3/xattr_security.c
+++ b/fs/ext3/xattr_security.c
@@ -69,7 +69,7 @@ ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
         return err;
 }
 
-struct xattr_handler ext3_xattr_security_handler = {
+const struct xattr_handler ext3_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .list   = ext3_xattr_security_list,
         .get    = ext3_xattr_security_get,
diff --git a/fs/ext3/xattr_trusted.c b/fs/ext3/xattr_trusted.c
index e5562845ed9..dc8edda9ffe 100644
--- a/fs/ext3/xattr_trusted.c
+++ b/fs/ext3/xattr_trusted.c
@@ -51,7 +51,7 @@ ext3_xattr_trusted_set(struct dentry *dentry, const char *name,
                               value, size, flags);
 }
 
-struct xattr_handler ext3_xattr_trusted_handler = {
+const struct xattr_handler ext3_xattr_trusted_handler = {
         .prefix = XATTR_TRUSTED_PREFIX,
         .list   = ext3_xattr_trusted_list,
         .get    = ext3_xattr_trusted_get,
diff --git a/fs/ext3/xattr_user.c b/fs/ext3/xattr_user.c
index 3bcfe9ee0a6..7a321974d58 100644
--- a/fs/ext3/xattr_user.c
+++ b/fs/ext3/xattr_user.c
@@ -54,7 +54,7 @@ ext3_xattr_user_set(struct dentry *dentry, const char *name,
                               name, value, size, flags);
 }
 
-struct xattr_handler ext3_xattr_user_handler = {
+const struct xattr_handler ext3_xattr_user_handler = {
         .prefix = XATTR_USER_PREFIX,
         .list   = ext3_xattr_user_list,
         .get    = ext3_xattr_user_get,
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 8a2a29d35a6..feaf498feaa 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -454,7 +454,7 @@ release_and_out:
         return error;
 }
 
-struct xattr_handler ext4_xattr_acl_access_handler = {
+const struct xattr_handler ext4_xattr_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_ACCESS,
         .list   = ext4_xattr_list_acl_access,
@@ -462,7 +462,7 @@ struct xattr_handler ext4_xattr_acl_access_handler = {
         .set    = ext4_xattr_set_acl,
 };
 
-struct xattr_handler ext4_xattr_acl_default_handler = {
+const struct xattr_handler ext4_xattr_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .list   = ext4_xattr_list_acl_default,
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 57f6eef6ccd..1a0e183a2f0 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -979,16 +979,12 @@ got:
                 atomic_dec(&sbi->s_flex_groups[flex_group].free_inodes);
         }
 
-        inode->i_uid = current_fsuid();
-        if (test_opt(sb, GRPID))
+        if (test_opt(sb, GRPID)) {
+                inode->i_mode = mode;
+                inode->i_uid = current_fsuid();
                 inode->i_gid = dir->i_gid;
-        else if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
         } else
-                inode->i_gid = current_fsgid();
-        inode->i_mode = mode;
+                inode_init_owner(inode, dir, mode);
 
         inode->i_ino = ino + group * EXT4_INODES_PER_GROUP(sb);
         /* This is the optimal IO size (for stat), not the fs block size */
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index b4c5aa8489d..2de0e951508 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -97,7 +97,7 @@ static int ext4_xattr_list(struct dentry *dentry, char *buffer,
 
 static struct mb_cache *ext4_xattr_cache;
 
-static struct xattr_handler *ext4_xattr_handler_map[] = {
+static const struct xattr_handler *ext4_xattr_handler_map[] = {
         [EXT4_XATTR_INDEX_USER]              = &ext4_xattr_user_handler,
 #ifdef CONFIG_EXT4_FS_POSIX_ACL
         [EXT4_XATTR_INDEX_POSIX_ACL_ACCESS]  = &ext4_xattr_acl_access_handler,
@@ -109,7 +109,7 @@ static struct xattr_handler *ext4_xattr_handler_map[] = {
 #endif
 };
 
-struct xattr_handler *ext4_xattr_handlers[] = {
+const struct xattr_handler *ext4_xattr_handlers[] = {
         &ext4_xattr_user_handler,
         &ext4_xattr_trusted_handler,
 #ifdef CONFIG_EXT4_FS_POSIX_ACL
@@ -122,10 +122,10 @@ struct xattr_handler *ext4_xattr_handlers[] = {
         NULL
 };
 
-static inline struct xattr_handler *
+static inline const struct xattr_handler *
 ext4_xattr_handler(int name_index)
 {
-        struct xattr_handler *handler = NULL;
+        const struct xattr_handler *handler = NULL;
 
         if (name_index > 0 && name_index < ARRAY_SIZE(ext4_xattr_handler_map))
                 handler = ext4_xattr_handler_map[name_index];
@@ -332,7 +332,7 @@ ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
         size_t rest = buffer_size;
 
         for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
-                struct xattr_handler *handler =
+                const struct xattr_handler *handler =
                         ext4_xattr_handler(entry->e_name_index);
 
                 if (handler) {
diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
index 8ede88b18c2..518e96e4390 100644
--- a/fs/ext4/xattr.h
+++ b/fs/ext4/xattr.h
@@ -65,11 +65,11 @@ struct ext4_xattr_entry {
 
 # ifdef CONFIG_EXT4_FS_XATTR
 
-extern struct xattr_handler ext4_xattr_user_handler;
-extern struct xattr_handler ext4_xattr_trusted_handler;
-extern struct xattr_handler ext4_xattr_acl_access_handler;
-extern struct xattr_handler ext4_xattr_acl_default_handler;
-extern struct xattr_handler ext4_xattr_security_handler;
+extern const struct xattr_handler ext4_xattr_user_handler;
+extern const struct xattr_handler ext4_xattr_trusted_handler;
+extern const struct xattr_handler ext4_xattr_acl_access_handler;
+extern const struct xattr_handler ext4_xattr_acl_default_handler;
+extern const struct xattr_handler ext4_xattr_security_handler;
 
 extern ssize_t ext4_listxattr(struct dentry *, char *, size_t);
 
@@ -86,7 +86,7 @@ extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
 extern int init_ext4_xattr(void);
 extern void exit_ext4_xattr(void);
 
-extern struct xattr_handler *ext4_xattr_handlers[];
+extern const struct xattr_handler *ext4_xattr_handlers[];
 
 # else  /* CONFIG_EXT4_FS_XATTR */
 
diff --git a/fs/ext4/xattr_security.c b/fs/ext4/xattr_security.c
index 8b145e98df0..9b21268e121 100644
--- a/fs/ext4/xattr_security.c
+++ b/fs/ext4/xattr_security.c
@@ -69,7 +69,7 @@ ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
         return err;
 }
 
-struct xattr_handler ext4_xattr_security_handler = {
+const struct xattr_handler ext4_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .list   = ext4_xattr_security_list,
         .get    = ext4_xattr_security_get,
diff --git a/fs/ext4/xattr_trusted.c b/fs/ext4/xattr_trusted.c
index 15b50edc658..37e6ebca2cc 100644
--- a/fs/ext4/xattr_trusted.c
+++ b/fs/ext4/xattr_trusted.c
@@ -51,7 +51,7 @@ ext4_xattr_trusted_set(struct dentry *dentry, const char *name,
                               name, value, size, flags);
 }
 
-struct xattr_handler ext4_xattr_trusted_handler = {
+const struct xattr_handler ext4_xattr_trusted_handler = {
         .prefix = XATTR_TRUSTED_PREFIX,
         .list   = ext4_xattr_trusted_list,
         .get    = ext4_xattr_trusted_get,
diff --git a/fs/ext4/xattr_user.c b/fs/ext4/xattr_user.c
index c4ce05746ce..98c375352d0 100644
--- a/fs/ext4/xattr_user.c
+++ b/fs/ext4/xattr_user.c
@@ -54,7 +54,7 @@ ext4_xattr_user_set(struct dentry *dentry, const char *name,
                               name, value, size, flags);
 }
 
-struct xattr_handler ext4_xattr_user_handler = {
+const struct xattr_handler ext4_xattr_user_handler = {
         .prefix = XATTR_USER_PREFIX,
         .list   = ext4_xattr_user_list,
         .get    = ext4_xattr_user_get,
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 437a7431b4e..5c4161f1fd9 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -42,10 +42,10 @@ struct wb_writeback_args {
         long nr_pages;
         struct super_block *sb;
         enum writeback_sync_modes sync_mode;
-        int for_kupdate:1;
-        int range_cyclic:1;
-        int for_background:1;
-        int sb_pinned:1;
+        unsigned int for_kupdate:1;
+        unsigned int range_cyclic:1;
+        unsigned int for_background:1;
+        unsigned int sb_pinned:1;
 };
 
 /*
diff --git a/fs/generic_acl.c b/fs/generic_acl.c
index fe5df545765..99800e56415 100644
--- a/fs/generic_acl.c
+++ b/fs/generic_acl.c
@@ -201,7 +201,7 @@ generic_check_acl(struct inode *inode, int mask)
         return -EAGAIN;
 }
 
-struct xattr_handler generic_acl_access_handler = {
+const struct xattr_handler generic_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_ACCESS,
         .list   = generic_acl_list,
@@ -209,7 +209,7 @@ struct xattr_handler generic_acl_access_handler = {
         .set    = generic_acl_set,
 };
 
-struct xattr_handler generic_acl_default_handler = {
+const struct xattr_handler generic_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .list   = generic_acl_list,
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 87ee309d4c2..9fb76b0a048 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -335,7 +335,7 @@ out:
         return error;
 }
 
-struct xattr_handler gfs2_xattr_system_handler = {
+const struct xattr_handler gfs2_xattr_system_handler = {
         .prefix = XATTR_SYSTEM_PREFIX,
         .flags  = GFS2_EATYPE_SYS,
         .get    = gfs2_xattr_system_get,
diff --git a/fs/gfs2/acl.h b/fs/gfs2/acl.h
index 9306a2e6620..b522b0cb39e 100644
--- a/fs/gfs2/acl.h
+++ b/fs/gfs2/acl.h
@@ -19,6 +19,6 @@
 extern int gfs2_check_acl(struct inode *inode, int mask);
 extern int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode);
 extern int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr);
-extern struct xattr_handler gfs2_xattr_system_handler;
+extern const struct xattr_handler gfs2_xattr_system_handler;
 
 #endif /* __ACL_DOT_H__ */
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index 3df60f2d84e..a0464680af0 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -54,7 +54,7 @@ extern struct file_system_type gfs2meta_fs_type;
 extern const struct export_operations gfs2_export_ops;
 extern const struct super_operations gfs2_super_ops;
 extern const struct dentry_operations gfs2_dops;
-extern struct xattr_handler *gfs2_xattr_handlers[];
+extern const struct xattr_handler *gfs2_xattr_handlers[];
 
 #endif /* __SUPER_DOT_H__ */
 
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
index c2ebdf2c01d..82f93da00d1 100644
--- a/fs/gfs2/xattr.c
+++ b/fs/gfs2/xattr.c
@@ -1535,21 +1535,21 @@ out_alloc:
         return error;
 }
 
-static struct xattr_handler gfs2_xattr_user_handler = {
+static const struct xattr_handler gfs2_xattr_user_handler = {
         .prefix = XATTR_USER_PREFIX,
         .flags  = GFS2_EATYPE_USR,
         .get    = gfs2_xattr_get,
         .set    = gfs2_xattr_set,
 };
 
-static struct xattr_handler gfs2_xattr_security_handler = {
+static const struct xattr_handler gfs2_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .flags  = GFS2_EATYPE_SECURITY,
         .get    = gfs2_xattr_get,
         .set    = gfs2_xattr_set,
 };
 
-struct xattr_handler *gfs2_xattr_handlers[] = {
+const struct xattr_handler *gfs2_xattr_handlers[] = {
         &gfs2_xattr_user_handler,
         &gfs2_xattr_security_handler,
         &gfs2_xattr_system_handler,
diff --git a/fs/inode.c b/fs/inode.c
index 258ec22bb29..2bee20ae3d6 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -286,11 +286,9 @@ static void init_once(void *foo)
  */
 void __iget(struct inode *inode)
 {
-        if (atomic_read(&inode->i_count)) {
-                atomic_inc(&inode->i_count);
+        if (atomic_inc_return(&inode->i_count) != 1)
                 return;
-        }
-        atomic_inc(&inode->i_count);
+
         if (!(inode->i_state & (I_DIRTY|I_SYNC)))
                 list_move(&inode->i_list, &inode_in_use);
         inodes_stat.nr_unused--;
@@ -1608,3 +1606,23 @@ void init_special_inode(struct inode *inode, umode_t mode, dev_t rdev)
                                   inode->i_ino);
 }
 EXPORT_SYMBOL(init_special_inode);
+
+/**
+ * Init uid,gid,mode for new inode according to posix standards
+ * @inode: New inode
+ * @dir: Directory inode
+ * @mode: mode of the new inode
+ */
+void inode_init_owner(struct inode *inode, const struct inode *dir,
+                        mode_t mode)
+{
+        inode->i_uid = current_fsuid();
+        if (dir && dir->i_mode & S_ISGID) {
+                inode->i_gid = dir->i_gid;
+                if (S_ISDIR(mode))
+                        mode |= S_ISGID;
+        } else
+                inode->i_gid = current_fsgid();
+        inode->i_mode = mode;
+}
+EXPORT_SYMBOL(inode_init_owner);
diff --git a/fs/internal.h b/fs/internal.h
index 8a03a5447bd..6b706bc60a6 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -87,6 +87,8 @@ extern struct file *get_empty_filp(void);
  * super.c
  */
 extern int do_remount_sb(struct super_block *, int, void *, int);
+extern void __put_super(struct super_block *sb);
+extern void put_super(struct super_block *sb);
 
 /*
  * open.c
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 7faefb4da93..2d140a71386 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -525,15 +525,8 @@ static int ioctl_fsfreeze(struct file *filp)
         if (sb->s_op->freeze_fs == NULL)
                 return -EOPNOTSUPP;
 
-        /* If a blockdevice-backed filesystem isn't specified, return. */
-        if (sb->s_bdev == NULL)
-                return -EINVAL;
-
         /* Freeze */
-        sb = freeze_bdev(sb->s_bdev);
-        if (IS_ERR(sb))
-                return PTR_ERR(sb);
-        return 0;
+        return freeze_super(sb);
 }
 
 static int ioctl_fsthaw(struct file *filp)
@@ -543,12 +536,8 @@ static int ioctl_fsthaw(struct file *filp)
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
-        /* If a blockdevice-backed filesystem isn't specified, return EINVAL. */
-        if (sb->s_bdev == NULL)
-                return -EINVAL;
-
         /* Thaw */
-        return thaw_bdev(sb->s_bdev, sb);
+        return thaw_super(sb);
 }
 
 /*
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 7cdc3196476..a33aab6b5e6 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -419,7 +419,7 @@ static int jffs2_acl_setxattr(struct dentry *dentry, const char *name,
         return rc;
 }
 
-struct xattr_handler jffs2_acl_access_xattr_handler = {
+const struct xattr_handler jffs2_acl_access_xattr_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_DEFAULT,
         .list   = jffs2_acl_access_listxattr,
@@ -427,7 +427,7 @@ struct xattr_handler jffs2_acl_access_xattr_handler = {
         .set    = jffs2_acl_setxattr,
 };
 
-struct xattr_handler jffs2_acl_default_xattr_handler = {
+const struct xattr_handler jffs2_acl_default_xattr_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .list   = jffs2_acl_default_listxattr,
diff --git a/fs/jffs2/acl.h b/fs/jffs2/acl.h
index f0ba63e3c36..5e42de8d954 100644
--- a/fs/jffs2/acl.h
+++ b/fs/jffs2/acl.h
@@ -31,8 +31,8 @@ extern int jffs2_acl_chmod(struct inode *);
 extern int jffs2_init_acl_pre(struct inode *, struct inode *, int *);
 extern int jffs2_init_acl_post(struct inode *);
 
-extern struct xattr_handler jffs2_acl_access_xattr_handler;
-extern struct xattr_handler jffs2_acl_default_xattr_handler;
+extern const struct xattr_handler jffs2_acl_access_xattr_handler;
+extern const struct xattr_handler jffs2_acl_default_xattr_handler;
 
 #else
 
diff --git a/fs/jffs2/security.c b/fs/jffs2/security.c
index eaccee05858..239f51216a6 100644
--- a/fs/jffs2/security.c
+++ b/fs/jffs2/security.c
@@ -77,7 +77,7 @@ static size_t jffs2_security_listxattr(struct dentry *dentry, char *list,
         return retlen;
 }
 
-struct xattr_handler jffs2_security_xattr_handler = {
+const struct xattr_handler jffs2_security_xattr_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .list = jffs2_security_listxattr,
         .set = jffs2_security_setxattr,
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index 9e75c62c85d..a2d58c96f1b 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -904,7 +904,7 @@ struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c,
  * do_jffs2_setxattr(inode, xprefix, xname, buffer, size, flags)
  *   is an implementation of setxattr handler on jffs2.
  * -------------------------------------------------- */
-struct xattr_handler *jffs2_xattr_handlers[] = {
+const struct xattr_handler *jffs2_xattr_handlers[] = {
         &jffs2_user_xattr_handler,
 #ifdef CONFIG_JFFS2_FS_SECURITY
         &jffs2_security_xattr_handler,
@@ -917,8 +917,8 @@ struct xattr_handler *jffs2_xattr_handlers[] = {
         NULL
 };
 
-static struct xattr_handler *xprefix_to_handler(int xprefix) {
-        struct xattr_handler *ret;
+static const struct xattr_handler *xprefix_to_handler(int xprefix) {
+        const struct xattr_handler *ret;
 
         switch (xprefix) {
         case JFFS2_XPREFIX_USER:
@@ -955,7 +955,7 @@ ssize_t jffs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
         struct jffs2_inode_cache *ic = f->inocache;
         struct jffs2_xattr_ref *ref, **pref;
         struct jffs2_xattr_datum *xd;
-        struct xattr_handler *xhandle;
+        const struct xattr_handler *xhandle;
         ssize_t len, rc;
         int retry = 0;
 
diff --git a/fs/jffs2/xattr.h b/fs/jffs2/xattr.h
index 6e3b5ddfb7a..cf4f5759b42 100644
--- a/fs/jffs2/xattr.h
+++ b/fs/jffs2/xattr.h
@@ -93,9 +93,9 @@ extern int do_jffs2_getxattr(struct inode *inode, int xprefix, const char *xname
 extern int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname,
                              const char *buffer, size_t size, int flags);
 
-extern struct xattr_handler *jffs2_xattr_handlers[];
-extern struct xattr_handler jffs2_user_xattr_handler;
-extern struct xattr_handler jffs2_trusted_xattr_handler;
+extern const struct xattr_handler *jffs2_xattr_handlers[];
+extern const struct xattr_handler jffs2_user_xattr_handler;
+extern const struct xattr_handler jffs2_trusted_xattr_handler;
 
 extern ssize_t jffs2_listxattr(struct dentry *, char *, size_t);
 #define jffs2_getxattr          generic_getxattr
@@ -122,7 +122,7 @@ extern ssize_t jffs2_listxattr(struct dentry *, char *, size_t);
 
 #ifdef CONFIG_JFFS2_FS_SECURITY
 extern int jffs2_init_security(struct inode *inode, struct inode *dir);
-extern struct xattr_handler jffs2_security_xattr_handler;
+extern const struct xattr_handler jffs2_security_xattr_handler;
 #else
 #define jffs2_init_security(inode,dir)  (0)
 #endif /* CONFIG_JFFS2_FS_SECURITY */
diff --git a/fs/jffs2/xattr_trusted.c b/fs/jffs2/xattr_trusted.c
index 3e5a5e356e0..1c868194c50 100644
--- a/fs/jffs2/xattr_trusted.c
+++ b/fs/jffs2/xattr_trusted.c
@@ -47,7 +47,7 @@ static size_t jffs2_trusted_listxattr(struct dentry *dentry, char *list,
         return retlen;
 }
 
-struct xattr_handler jffs2_trusted_xattr_handler = {
+const struct xattr_handler jffs2_trusted_xattr_handler = {
         .prefix = XATTR_TRUSTED_PREFIX,
         .list = jffs2_trusted_listxattr,
         .set = jffs2_trusted_setxattr,
diff --git a/fs/jffs2/xattr_user.c b/fs/jffs2/xattr_user.c
index 8544af67dff..916b5c96603 100644
--- a/fs/jffs2/xattr_user.c
+++ b/fs/jffs2/xattr_user.c
@@ -47,7 +47,7 @@ static size_t jffs2_user_listxattr(struct dentry *dentry, char *list,
         return retlen;
 }
 
-struct xattr_handler jffs2_user_xattr_handler = {
+const struct xattr_handler jffs2_user_xattr_handler = {
         .prefix = XATTR_USER_PREFIX,
         .list = jffs2_user_listxattr,
         .set = jffs2_user_setxattr,
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 829921b6776..2686531e235 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -98,14 +98,7 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
                 goto fail_unlock;
         }
 
-        inode->i_uid = current_fsuid();
-        if (parent->i_mode & S_ISGID) {
-                inode->i_gid = parent->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else
-                inode->i_gid = current_fsgid();
-
+        inode_init_owner(inode, parent, mode);
         /*
          * New inodes need to save sane values on disk when
          * uid & gid mount options are used
@@ -121,7 +114,6 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
         if (rc)
                 goto fail_drop;
 
-        inode->i_mode = mode;
         /* inherit flags from parent */
         jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
 
@@ -134,7 +126,7 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
                 if (S_ISLNK(mode))
                         jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
         }
-        jfs_inode->mode2 |= mode;
+        jfs_inode->mode2 |= inode->i_mode;
 
         inode->i_blocks = 0;
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index 755a92e8daa..f602e230e16 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -358,14 +358,7 @@ struct inode *logfs_new_inode(struct inode *dir, int mode)
         inode->i_mode = mode;
         logfs_set_ino_generation(sb, inode);
 
-        inode->i_uid = current_fsuid();
-        inode->i_gid = current_fsgid();
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        inode->i_mode |= S_ISGID;
-        }
-
+        inode_init_owner(inode, dir, mode);
         logfs_inode_setops(inode);
         insert_inode_hash(inode);
 
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c
index 6ac693faae4..482779fe4e7 100644
--- a/fs/minix/bitmap.c
+++ b/fs/minix/bitmap.c
@@ -221,7 +221,7 @@ void minix_free_inode(struct inode * inode)
         clear_inode(inode);             /* clear in-memory copy */
 }
 
-struct inode * minix_new_inode(const struct inode * dir, int * error)
+struct inode *minix_new_inode(const struct inode *dir, int mode, int *error)
 {
         struct super_block *sb = dir->i_sb;
         struct minix_sb_info *sbi = minix_sb(sb);
@@ -263,8 +263,7 @@ struct inode * minix_new_inode(const struct inode * dir, int * error)
                 iput(inode);
                 return NULL;
         }
-        inode->i_uid = current_fsuid();
-        inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current_fsgid();
+        inode_init_owner(inode, dir, mode);
         inode->i_ino = j;
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
         inode->i_blocks = 0;
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index 9dcf95b4211..111f34ee9e3 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 * dir, int * error);
+extern struct inode * minix_new_inode(const struct inode *, int, int *);
 extern void minix_free_inode(struct inode * inode);
 extern unsigned long minix_count_free_inodes(struct minix_sb_info *sbi);
 extern int minix_new_block(struct inode * inode);
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index 32b131cd612..e20ee85955d 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -46,10 +46,9 @@ static int minix_mknod(struct inode * dir, struct dentry *dentry, int mode, dev_
         if (!old_valid_dev(rdev))
                 return -EINVAL;
 
-        inode = minix_new_inode(dir, &error);
+        inode = minix_new_inode(dir, mode, &error);
 
         if (inode) {
-                inode->i_mode = mode;
                 minix_set_inode(inode, rdev);
                 mark_inode_dirty(inode);
                 error = add_nondir(dentry, inode);
@@ -73,11 +72,10 @@ static int minix_symlink(struct inode * dir, struct dentry *dentry,
         if (i > dir->i_sb->s_blocksize)
                 goto out;
 
-        inode = minix_new_inode(dir, &err);
+        inode = minix_new_inode(dir, S_IFLNK | 0777, &err);
         if (!inode)
                 goto out;
 
-        inode->i_mode = S_IFLNK | 0777;
         minix_set_inode(inode, 0);
         err = page_symlink(inode, symname, i);
         if (err)
@@ -117,13 +115,10 @@ static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
 
         inode_inc_link_count(dir);
 
-        inode = minix_new_inode(dir, &err);
+        inode = minix_new_inode(dir, mode, &err);
         if (!inode)
                 goto out_dir;
 
-        inode->i_mode = S_IFDIR | mode;
-        if (dir->i_mode & S_ISGID)
-                inode->i_mode |= S_ISGID;
         minix_set_inode(inode, 0);
 
         inode_inc_link_count(inode);
diff --git a/fs/namei.c b/fs/namei.c
index b86b96fe1dc..48e1f60520e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -523,9 +523,10 @@ static void path_put_conditional(struct path *path, struct nameidata *nd)
 static inline void path_to_nameidata(struct path *path, struct nameidata *nd)
 {
         dput(nd->path.dentry);
-        if (nd->path.mnt != path->mnt)
+        if (nd->path.mnt != path->mnt) {
                 mntput(nd->path.mnt);
-        nd->path.mnt = path->mnt;
+                nd->path.mnt = path->mnt;
+        }
         nd->path.dentry = path->dentry;
 }
 
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 7a9ae3254a4..7e26caab2a2 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -44,8 +44,7 @@
 #define NFSDDBG_FACILITY                NFSDDBG_PROC
 
 /* Globals */
-static struct path rec_dir;
-static int rec_dir_init = 0;
+static struct file *rec_file;
 
 static int
 nfs4_save_creds(const struct cred **original_creds)
@@ -117,33 +116,28 @@ out_no_tfm:
         return status;
 }
 
-static void
-nfsd4_sync_rec_dir(void)
-{
-        vfs_fsync(NULL, rec_dir.dentry, 0);
-}
-
 int
 nfsd4_create_clid_dir(struct nfs4_client *clp)
 {
         const struct cred *original_cred;
         char *dname = clp->cl_recdir;
-        struct dentry *dentry;
+        struct dentry *dir, *dentry;
         int status;
 
         dprintk("NFSD: nfsd4_create_clid_dir for \"%s\"\n", dname);
 
-        if (!rec_dir_init || clp->cl_firststate)
+        if (!rec_file || clp->cl_firststate)
                 return 0;
 
         status = nfs4_save_creds(&original_cred);
         if (status < 0)
                 return status;
 
+        dir = rec_file->f_path.dentry;
         /* lock the parent */
-        mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
+        mutex_lock(&dir->d_inode->i_mutex);
 
-        dentry = lookup_one_len(dname, rec_dir.dentry, HEXDIR_LEN-1);
+        dentry = lookup_one_len(dname, dir, HEXDIR_LEN-1);
         if (IS_ERR(dentry)) {
                 status = PTR_ERR(dentry);
                 goto out_unlock;
@@ -153,18 +147,18 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
                 dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n");
                 goto out_put;
         }
-        status = mnt_want_write(rec_dir.mnt);
+        status = mnt_want_write(rec_file->f_path.mnt);
         if (status)
                 goto out_put;
-        status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU);
-        mnt_drop_write(rec_dir.mnt);
+        status = vfs_mkdir(dir->d_inode, dentry, S_IRWXU);
+        mnt_drop_write(rec_file->f_path.mnt);
 out_put:
         dput(dentry);
 out_unlock:
-        mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
+        mutex_unlock(&dir->d_inode->i_mutex);
         if (status == 0) {
                 clp->cl_firststate = 1;
-                nfsd4_sync_rec_dir();
+                vfs_fsync(rec_file, 0);
         }
         nfs4_reset_creds(original_cred);
         dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status);
@@ -206,14 +200,14 @@ nfsd4_list_rec_dir(struct dentry *dir, recdir_func *f)
         struct dentry *dentry;
         int status;
 
-        if (!rec_dir_init)
+        if (!rec_file)
                 return 0;
 
         status = nfs4_save_creds(&original_cred);
         if (status < 0)
                 return status;
 
-        filp = dentry_open(dget(dir), mntget(rec_dir.mnt), O_RDONLY,
+        filp = dentry_open(dget(dir), mntget(rec_file->f_path.mnt), O_RDONLY,
                            current_cred());
         status = PTR_ERR(filp);
         if (IS_ERR(filp))
@@ -250,13 +244,14 @@ out:
 static int
 nfsd4_unlink_clid_dir(char *name, int namlen)
 {
-        struct dentry *dentry;
+        struct dentry *dir, *dentry;
         int status;
 
         dprintk("NFSD: nfsd4_unlink_clid_dir. name %.*s\n", namlen, name);
 
-        mutex_lock_nested(&rec_dir.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
-        dentry = lookup_one_len(name, rec_dir.dentry, namlen);
+        dir = rec_file->f_path.dentry;
+        mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
+        dentry = lookup_one_len(name, dir, namlen);
         if (IS_ERR(dentry)) {
                 status = PTR_ERR(dentry);
                 goto out_unlock;
@@ -264,11 +259,11 @@ nfsd4_unlink_clid_dir(char *name, int namlen)
         status = -ENOENT;
         if (!dentry->d_inode)
                 goto out;
-        status = vfs_rmdir(rec_dir.dentry->d_inode, dentry);
+        status = vfs_rmdir(dir->d_inode, dentry);
 out:
         dput(dentry);
 out_unlock:
-        mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
+        mutex_unlock(&dir->d_inode->i_mutex);
         return status;
 }
 
@@ -278,10 +273,10 @@ nfsd4_remove_clid_dir(struct nfs4_client *clp)
         const struct cred *original_cred;
         int status;
 
-        if (!rec_dir_init || !clp->cl_firststate)
+        if (!rec_file || !clp->cl_firststate)
                 return;
 
-        status = mnt_want_write(rec_dir.mnt);
+        status = mnt_want_write(rec_file->f_path.mnt);
         if (status)
                 goto out;
         clp->cl_firststate = 0;
@@ -293,8 +288,8 @@ nfsd4_remove_clid_dir(struct nfs4_client *clp)
         status = nfsd4_unlink_clid_dir(clp->cl_recdir, HEXDIR_LEN-1);
         nfs4_reset_creds(original_cred);
         if (status == 0)
-                nfsd4_sync_rec_dir();
-        mnt_drop_write(rec_dir.mnt);
+                vfs_fsync(rec_file, 0);
+        mnt_drop_write(rec_file->f_path.mnt);
 out:
         if (status)
                 printk("NFSD: Failed to remove expired client state directory"
@@ -323,19 +318,19 @@ void
 nfsd4_recdir_purge_old(void) {
         int status;
 
-        if (!rec_dir_init)
+        if (!rec_file)
                 return;
-        status = mnt_want_write(rec_dir.mnt);
+        status = mnt_want_write(rec_file->f_path.mnt);
         if (status)
                 goto out;
-        status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old);
+        status = nfsd4_list_rec_dir(rec_file->f_path.dentry, purge_old);
         if (status == 0)
-                nfsd4_sync_rec_dir();
-        mnt_drop_write(rec_dir.mnt);
+                vfs_fsync(rec_file, 0);
+        mnt_drop_write(rec_file->f_path.mnt);
 out:
         if (status)
                 printk("nfsd4: failed to purge old clients from recovery"
-                        " directory %s\n", rec_dir.dentry->d_name.name);
+                        " directory %s\n", rec_file->f_path.dentry->d_name.name);
 }
 
 static int
@@ -355,10 +350,13 @@ int
 nfsd4_recdir_load(void) {
         int status;
 
-        status = nfsd4_list_rec_dir(rec_dir.dentry, load_recdir);
+        if (!rec_file)
+                return 0;
+
+        status = nfsd4_list_rec_dir(rec_file->f_path.dentry, load_recdir);
         if (status)
                 printk("nfsd4: failed loading clients from recovery"
-                        " directory %s\n", rec_dir.dentry->d_name.name);
+                        " directory %s\n", rec_file->f_path.dentry->d_name.name);
         return status;
 }
 
@@ -375,7 +373,7 @@ nfsd4_init_recdir(char *rec_dirname)
         printk("NFSD: Using %s as the NFSv4 state recovery directory\n",
                         rec_dirname);
 
-        BUG_ON(rec_dir_init);
+        BUG_ON(rec_file);
 
         status = nfs4_save_creds(&original_cred);
         if (status < 0) {
@@ -385,22 +383,21 @@ nfsd4_init_recdir(char *rec_dirname)
                 return;
         }
 
-        status = kern_path(rec_dirname, LOOKUP_FOLLOW | LOOKUP_DIRECTORY,
-                        &rec_dir);
-        if (status)
+        rec_file = filp_open(rec_dirname, O_RDONLY | O_DIRECTORY, 0);
+        if (IS_ERR(rec_file)) {
                 printk("NFSD: unable to find recovery directory %s\n",
                                 rec_dirname);
+                rec_file = NULL;
+        }
 
-        if (!status)
-                rec_dir_init = 1;
         nfs4_reset_creds(original_cred);
 }
 
 void
 nfsd4_shutdown_recdir(void)
 {
-        if (!rec_dir_init)
+        if (!rec_file)
                 return;
-        rec_dir_init = 0;
-        path_put(&rec_dir);
+        fput(rec_file);
+        rec_file = NULL;
 }
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 23c06f77f4c..ebbf3b6b245 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -999,7 +999,7 @@ static int wait_for_concurrent_writes(struct file *file)
 
         if (inode->i_state & I_DIRTY) {
                 dprintk("nfsd: write sync %d\n", task_pid_nr(current));
-                err = vfs_fsync(file, file->f_path.dentry, 0);
+                err = vfs_fsync(file, 0);
         }
         last_ino = inode->i_ino;
         last_dev = inode->i_sb->s_dev;
@@ -1175,8 +1175,7 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp,
         if (err)
                 goto out;
         if (EX_ISSYNC(fhp->fh_export)) {
-                int err2 = vfs_fsync_range(file, file->f_path.dentry,
-                                offset, end, 0);
+                int err2 = vfs_fsync_range(file, offset, end, 0);
 
                 if (err2 != -EINVAL)
                         err = nfserrno(err2);
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 5e226d4b41d..39e038ac8fc 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -280,16 +280,7 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode)
         /* reference count of i_bh inherits from nilfs_mdt_read_block() */
 
         atomic_inc(&sbi->s_inodes_count);
-
-        inode->i_uid = current_fsuid();
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else
-                inode->i_gid = current_fsgid();
-
-        inode->i_mode = mode;
+        inode_init_owner(inode, dir, mode);
         inode->i_ino = ino;
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
 
diff --git a/fs/notify/inotify/inotify.c b/fs/notify/inotify/inotify.c
index 40b1cf914cc..27b75ebc746 100644
--- a/fs/notify/inotify/inotify.c
+++ b/fs/notify/inotify/inotify.c
@@ -110,14 +110,10 @@ EXPORT_SYMBOL_GPL(get_inotify_watch);
 int pin_inotify_watch(struct inotify_watch *watch)
 {
         struct super_block *sb = watch->inode->i_sb;
-        spin_lock(&sb_lock);
-        if (sb->s_count >= S_BIAS) {
-                atomic_inc(&sb->s_active);
-                spin_unlock(&sb_lock);
+        if (atomic_inc_not_zero(&sb->s_active)) {
                 atomic_inc(&watch->count);
                 return 1;
         }
-        spin_unlock(&sb_lock);
         return 0;
 }
 
@@ -515,34 +511,8 @@ EXPORT_SYMBOL_GPL(inotify_init_watch);
  * done.  Cleanup is just deactivate_super().  However, that leaves a messy
  * case - what if we *are* racing with umount() and active references to
  * superblock can't be acquired anymore?  We can bump ->s_count, grab
- * ->s_umount, which will almost certainly wait until the superblock is shut
- * down and the watch in question is pining for fjords.  That's fine, but
- * there is a problem - we might have hit the window between ->s_active
- * getting to 0 / ->s_count - below S_BIAS (i.e. the moment when superblock
- * is past the point of no return and is heading for shutdown) and the
- * moment when deactivate_super() acquires ->s_umount.  We could just do
- * drop_super() yield() and retry, but that's rather antisocial and this
- * stuff is luser-triggerable.  OTOH, having grabbed ->s_umount and having
- * found that we'd got there first (i.e. that ->s_root is non-NULL) we know
- * that we won't race with inotify_umount_inodes().  So we could grab a
- * reference to watch and do the rest as above, just with drop_super() instead
- * of deactivate_super(), right?  Wrong.  We had to drop ih->mutex before we
- * could grab ->s_umount.  So the watch could've been gone already.
- *
- * That still can be dealt with - we need to save watch->wd, do idr_find()
- * and compare its result with our pointer.  If they match, we either have
- * the damn thing still alive or we'd lost not one but two races at once,
- * the watch had been killed and a new one got created with the same ->wd
- * at the same address.  That couldn't have happened in inotify_destroy(),
- * but inotify_rm_wd() could run into that.  Still, "new one got created"
- * is not a problem - we have every right to kill it or leave it alone,
- * whatever's more convenient.
- *
- * So we can use idr_find(...) == watch && watch->inode->i_sb == sb as
- * "grab it and kill it" check.  If it's been our original watch, we are
- * fine, if it's a newcomer - nevermind, just pretend that we'd won the
- * race and kill the fscker anyway; we are safe since we know that its
- * superblock won't be going away.
+ * ->s_umount, which will wait until the superblock is shut down and the
+ * watch in question is pining for fjords.
  *
  * And yes, this is far beyond mere "not very pretty"; so's the entire
  * concept of inotify to start with.
@@ -556,57 +526,31 @@ EXPORT_SYMBOL_GPL(inotify_init_watch);
  * Called with ih->mutex held, drops it.  Possible return values:
  * 0 - nothing to do, it has died
  * 1 - remove it, drop the reference and deactivate_super()
- * 2 - remove it, drop the reference and drop_super(); we tried hard to avoid
- * that variant, since it involved a lot of PITA, but that's the best that
- * could've been done.
  */
 static int pin_to_kill(struct inotify_handle *ih, struct inotify_watch *watch)
 {
         struct super_block *sb = watch->inode->i_sb;
-        s32 wd = watch->wd;
 
-        spin_lock(&sb_lock);
-        if (sb->s_count >= S_BIAS) {
-                atomic_inc(&sb->s_active);
-                spin_unlock(&sb_lock);
+        if (atomic_inc_not_zero(&sb->s_active)) {
                 get_inotify_watch(watch);
                 mutex_unlock(&ih->mutex);
                 return 1;       /* the best outcome */
         }
+        spin_lock(&sb_lock);
         sb->s_count++;
         spin_unlock(&sb_lock);
         mutex_unlock(&ih->mutex); /* can't grab ->s_umount under it */
         down_read(&sb->s_umount);
-        if (likely(!sb->s_root)) {
-                /* fs is already shut down; the watch is dead */
-                drop_super(sb);
-                return 0;
-        }
-        /* raced with the final deactivate_super() */
-        mutex_lock(&ih->mutex);
-        if (idr_find(&ih->idr, wd) != watch || watch->inode->i_sb != sb) {
-                /* the watch is dead */
-                mutex_unlock(&ih->mutex);
-                drop_super(sb);
-                return 0;
-        }
-        /* still alive or freed and reused with the same sb and wd; kill */
-        get_inotify_watch(watch);
-        mutex_unlock(&ih->mutex);
-        return 2;
+        /* fs is already shut down; the watch is dead */
+        drop_super(sb);
+        return 0;
 }
 
-static void unpin_and_kill(struct inotify_watch *watch, int how)
+static void unpin_and_kill(struct inotify_watch *watch)
 {
         struct super_block *sb = watch->inode->i_sb;
         put_inotify_watch(watch);
-        switch (how) {
-        case 1:
-                deactivate_super(sb);
-                break;
-        case 2:
-                drop_super(sb);
-        }
+        deactivate_super(sb);
 }
 
 /**
@@ -628,7 +572,6 @@ void inotify_destroy(struct inotify_handle *ih)
                 struct list_head *watches;
                 struct super_block *sb;
                 struct inode *inode;
-                int how;
 
                 mutex_lock(&ih->mutex);
                 watches = &ih->watches;
@@ -638,8 +581,7 @@ void inotify_destroy(struct inotify_handle *ih)
                 }
                 watch = list_first_entry(watches, struct inotify_watch, h_list);
                 sb = watch->inode->i_sb;
-                how = pin_to_kill(ih, watch);
-                if (!how)
+                if (!pin_to_kill(ih, watch))
                         continue;
 
                 inode = watch->inode;
@@ -654,7 +596,7 @@ void inotify_destroy(struct inotify_handle *ih)
 
                 mutex_unlock(&ih->mutex);
                 mutex_unlock(&inode->inotify_mutex);
-                unpin_and_kill(watch, how);
+                unpin_and_kill(watch);
         }
 
         /* free this handle: the put matching the get in inotify_init() */
@@ -857,7 +799,6 @@ int inotify_rm_wd(struct inotify_handle *ih, u32 wd)
         struct inotify_watch *watch;
         struct super_block *sb;
         struct inode *inode;
-        int how;
 
         mutex_lock(&ih->mutex);
         watch = idr_find(&ih->idr, wd);
@@ -866,8 +807,7 @@ int inotify_rm_wd(struct inotify_handle *ih, u32 wd)
                 return -EINVAL;
         }
         sb = watch->inode->i_sb;
-        how = pin_to_kill(ih, watch);
-        if (!how)
+        if (!pin_to_kill(ih, watch))
                 return 0;
 
         inode = watch->inode;
@@ -881,7 +821,7 @@ int inotify_rm_wd(struct inotify_handle *ih, u32 wd)
 
         mutex_unlock(&ih->mutex);
         mutex_unlock(&inode->inotify_mutex);
-        unpin_and_kill(watch, how);
+        unpin_and_kill(watch);
 
         return 0;
 }
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index e13fc9e8fcd..da702294d7e 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -489,7 +489,7 @@ cleanup:
         return ret;
 }
 
-struct xattr_handler ocfs2_xattr_acl_access_handler = {
+const struct xattr_handler ocfs2_xattr_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_ACCESS,
         .list   = ocfs2_xattr_list_acl_access,
@@ -497,7 +497,7 @@ struct xattr_handler ocfs2_xattr_acl_access_handler = {
         .set    = ocfs2_xattr_set_acl,
 };
 
-struct xattr_handler ocfs2_xattr_acl_default_handler = {
+const struct xattr_handler ocfs2_xattr_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .list   = ocfs2_xattr_list_acl_default,
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index db5dd3ed4df..f171b51a74f 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -204,14 +204,7 @@ static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode)
                 inode->i_nlink = 2;
         else
                 inode->i_nlink = 1;
-        inode->i_uid = current_fsuid();
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else
-                inode->i_gid = current_fsgid();
-        inode->i_mode = mode;
+        inode_init_owner(inode, dir, mode);
         dquot_initialize(inode);
         return inode;
 }
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 98ee6c44102..e97b34842cf 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -97,7 +97,7 @@ static struct ocfs2_xattr_def_value_root def_xv = {
         .xv.xr_list.l_count = cpu_to_le16(1),
 };
 
-struct xattr_handler *ocfs2_xattr_handlers[] = {
+const struct xattr_handler *ocfs2_xattr_handlers[] = {
         &ocfs2_xattr_user_handler,
         &ocfs2_xattr_acl_access_handler,
         &ocfs2_xattr_acl_default_handler,
@@ -106,7 +106,7 @@ struct xattr_handler *ocfs2_xattr_handlers[] = {
         NULL
 };
 
-static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
+static const struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
         [OCFS2_XATTR_INDEX_USER]        = &ocfs2_xattr_user_handler,
         [OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS]
                                         = &ocfs2_xattr_acl_access_handler,
@@ -540,7 +540,7 @@ static int ocfs2_read_xattr_block(struct inode *inode, u64 xb_blkno,
 
 static inline const char *ocfs2_xattr_prefix(int name_index)
 {
-        struct xattr_handler *handler = NULL;
+        const struct xattr_handler *handler = NULL;
 
         if (name_index > 0 && name_index < OCFS2_XATTR_MAX)
                 handler = ocfs2_xattr_handler_map[name_index];
@@ -7213,7 +7213,7 @@ int ocfs2_init_security_set(handle_t *handle,
                                      xattr_ac, data_ac);
 }
 
-struct xattr_handler ocfs2_xattr_security_handler = {
+const struct xattr_handler ocfs2_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .list   = ocfs2_xattr_security_list,
         .get    = ocfs2_xattr_security_get,
@@ -7257,7 +7257,7 @@ static int ocfs2_xattr_trusted_set(struct dentry *dentry, const char *name,
                                name, value, size, flags);
 }
 
-struct xattr_handler ocfs2_xattr_trusted_handler = {
+const struct xattr_handler ocfs2_xattr_trusted_handler = {
         .prefix = XATTR_TRUSTED_PREFIX,
         .list   = ocfs2_xattr_trusted_list,
         .get    = ocfs2_xattr_trusted_get,
@@ -7313,7 +7313,7 @@ static int ocfs2_xattr_user_set(struct dentry *dentry, const char *name,
                                name, value, size, flags);
 }
 
-struct xattr_handler ocfs2_xattr_user_handler = {
+const struct xattr_handler ocfs2_xattr_user_handler = {
         .prefix = XATTR_USER_PREFIX,
         .list   = ocfs2_xattr_user_list,
         .get    = ocfs2_xattr_user_get,
diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
index abd72a47f52..aa64bb37a65 100644
--- a/fs/ocfs2/xattr.h
+++ b/fs/ocfs2/xattr.h
@@ -37,12 +37,12 @@ struct ocfs2_security_xattr_info {
         size_t value_len;
 };
 
-extern struct xattr_handler ocfs2_xattr_user_handler;
-extern struct xattr_handler ocfs2_xattr_trusted_handler;
-extern struct xattr_handler ocfs2_xattr_security_handler;
-extern struct xattr_handler ocfs2_xattr_acl_access_handler;
-extern struct xattr_handler ocfs2_xattr_acl_default_handler;
-extern struct xattr_handler *ocfs2_xattr_handlers[];
+extern const struct xattr_handler ocfs2_xattr_user_handler;
+extern const struct xattr_handler ocfs2_xattr_trusted_handler;
+extern const struct xattr_handler ocfs2_xattr_security_handler;
+extern const struct xattr_handler ocfs2_xattr_acl_access_handler;
+extern const struct xattr_handler ocfs2_xattr_acl_default_handler;
+extern const struct xattr_handler *ocfs2_xattr_handlers[];
 
 ssize_t ocfs2_listxattr(struct dentry *, char *, size_t);
 int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int,
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index b44bb835e8e..089839a6cc6 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -37,9 +37,7 @@ struct inode *omfs_new_inode(struct inode *dir, int mode)
                 goto fail;
 
         inode->i_ino = new_block;
-        inode->i_mode = mode;
-        inode->i_uid = current_fsuid();
-        inode->i_gid = current_fsgid();
+        inode_init_owner(inode, NULL, mode);
         inode->i_mapping->a_ops = &omfs_aops;
 
         inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
diff --git a/fs/open.c b/fs/open.c
index 74e5cd9f718..5463266db9e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -17,7 +17,6 @@
 #include <linux/securebits.h>
 #include <linux/security.h>
 #include <linux/mount.h>
-#include <linux/vfs.h>
 #include <linux/fcntl.h>
 #include <linux/slab.h>
 #include <asm/uaccess.h>
@@ -33,171 +32,6 @@
 
 #include "internal.h"
 
-int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
-        int retval = -ENODEV;
-
-        if (dentry) {
-                retval = -ENOSYS;
-                if (dentry->d_sb->s_op->statfs) {
-                        memset(buf, 0, sizeof(*buf));
-                        retval = security_sb_statfs(dentry);
-                        if (retval)
-                                return retval;
-                        retval = dentry->d_sb->s_op->statfs(dentry, buf);
-                        if (retval == 0 && buf->f_frsize == 0)
-                                buf->f_frsize = buf->f_bsize;
-                }
-        }
-        return retval;
-}
-
-EXPORT_SYMBOL(vfs_statfs);
-
-static int vfs_statfs_native(struct dentry *dentry, struct statfs *buf)
-{
-        struct kstatfs st;
-        int retval;
-
-        retval = vfs_statfs(dentry, &st);
-        if (retval)
-                return retval;
-
-        if (sizeof(*buf) == sizeof(st))
-                memcpy(buf, &st, sizeof(st));
-        else {
-                if (sizeof buf->f_blocks == 4) {
-                        if ((st.f_blocks | st.f_bfree | st.f_bavail |
-                             st.f_bsize | st.f_frsize) &
-                            0xffffffff00000000ULL)
-                                return -EOVERFLOW;
-                        /*
-                         * f_files and f_ffree may be -1; it's okay to stuff
-                         * that into 32 bits
-                         */
-                        if (st.f_files != -1 &&
-                            (st.f_files & 0xffffffff00000000ULL))
-                                return -EOVERFLOW;
-                        if (st.f_ffree != -1 &&
-                            (st.f_ffree & 0xffffffff00000000ULL))
-                                return -EOVERFLOW;
-                }
-
-                buf->f_type = st.f_type;
-                buf->f_bsize = st.f_bsize;
-                buf->f_blocks = st.f_blocks;
-                buf->f_bfree = st.f_bfree;
-                buf->f_bavail = st.f_bavail;
-                buf->f_files = st.f_files;
-                buf->f_ffree = st.f_ffree;
-                buf->f_fsid = st.f_fsid;
-                buf->f_namelen = st.f_namelen;
-                buf->f_frsize = st.f_frsize;
-                memset(buf->f_spare, 0, sizeof(buf->f_spare));
-        }
-        return 0;
-}
-
-static int vfs_statfs64(struct dentry *dentry, struct statfs64 *buf)
-{
-        struct kstatfs st;
-        int retval;
-
-        retval = vfs_statfs(dentry, &st);
-        if (retval)
-                return retval;
-
-        if (sizeof(*buf) == sizeof(st))
-                memcpy(buf, &st, sizeof(st));
-        else {
-                buf->f_type = st.f_type;
-                buf->f_bsize = st.f_bsize;
-                buf->f_blocks = st.f_blocks;
-                buf->f_bfree = st.f_bfree;
-                buf->f_bavail = st.f_bavail;
-                buf->f_files = st.f_files;
-                buf->f_ffree = st.f_ffree;
-                buf->f_fsid = st.f_fsid;
-                buf->f_namelen = st.f_namelen;
-                buf->f_frsize = st.f_frsize;
-                memset(buf->f_spare, 0, sizeof(buf->f_spare));
-        }
-        return 0;
-}
-
-SYSCALL_DEFINE2(statfs, const char __user *, pathname, struct statfs __user *, buf)
-{
-        struct path path;
-        int error;
-
-        error = user_path(pathname, &path);
-        if (!error) {
-                struct statfs tmp;
-                error = vfs_statfs_native(path.dentry, &tmp);
-                if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
-                        error = -EFAULT;
-                path_put(&path);
-        }
-        return error;
-}
-
-SYSCALL_DEFINE3(statfs64, const char __user *, pathname, size_t, sz, struct statfs64 __user *, buf)
-{
-        struct path path;
-        long error;
-
-        if (sz != sizeof(*buf))
-                return -EINVAL;
-        error = user_path(pathname, &path);
-        if (!error) {
-                struct statfs64 tmp;
-                error = vfs_statfs64(path.dentry, &tmp);
-                if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
-                        error = -EFAULT;
-                path_put(&path);
-        }
-        return error;
-}
-
-SYSCALL_DEFINE2(fstatfs, unsigned int, fd, struct statfs __user *, buf)
-{
-        struct file * file;
-        struct statfs tmp;
-        int error;
-
-        error = -EBADF;
-        file = fget(fd);
-        if (!file)
-                goto out;
-        error = vfs_statfs_native(file->f_path.dentry, &tmp);
-        if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
-                error = -EFAULT;
-        fput(file);
-out:
-        return error;
-}
-
-SYSCALL_DEFINE3(fstatfs64, unsigned int, fd, size_t, sz, struct statfs64 __user *, buf)
-{
-        struct file * file;
-        struct statfs64 tmp;
-        int error;
-
-        if (sz != sizeof(*buf))
-                return -EINVAL;
-
-        error = -EBADF;
-        file = fget(fd);
-        if (!file)
-                goto out;
-        error = vfs_statfs64(file->f_path.dentry, &tmp);
-        if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
-                error = -EFAULT;
-        fput(file);
-out:
-        return error;
-}
-
 int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
         struct file *filp)
 {
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c
index 9e346c19bbb..9efb2cfe241 100644
--- a/fs/partitions/efi.c
+++ b/fs/partitions/efi.c
@@ -626,7 +626,7 @@ int efi_partition(struct parsed_partitions *state)
                 /* If this is a RAID volume, tell md */
                 if (!efi_guidcmp(ptes[i].partition_type_guid,
                                  PARTITION_LINUX_RAID_GUID))
-                        state->parts[i+1].flags = 1;
+                        state->parts[i + 1].flags = ADDPART_FLAG_RAID;
         }
         kfree(ptes);
         kfree(gpt);
diff --git a/fs/partitions/mac.c b/fs/partitions/mac.c
index 13e27b0082f..74465ff7c26 100644
--- a/fs/partitions/mac.c
+++ b/fs/partitions/mac.c
@@ -75,7 +75,7 @@ int mac_partition(struct parsed_partitions *state)
                         be32_to_cpu(part->block_count) * (secsize/512));
 
                 if (!strnicmp(part->type, "Linux_RAID", 10))
-                        state->parts[slot].flags = 1;
+                        state->parts[slot].flags = ADDPART_FLAG_RAID;
 #ifdef CONFIG_PPC_PMAC
                 /*
                  * If this is the first bootable partition, tell the
diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c
index 645a68d8c05..15bfb7b1e04 100644
--- a/fs/partitions/msdos.c
+++ b/fs/partitions/msdos.c
@@ -498,7 +498,7 @@ int msdos_partition(struct parsed_partitions *state)
                 }
                 put_partition(state, slot, start, size);
                 if (SYS_IND(p) == LINUX_RAID_PARTITION)
-                        state->parts[slot].flags = 1;
+                        state->parts[slot].flags = ADDPART_FLAG_RAID;
                 if (SYS_IND(p) == DM6_PARTITION)
                         printk("[DM]");
                 if (SYS_IND(p) == EZD_PARTITION)
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index cfc78826da9..ce3dfd066f5 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -45,36 +45,22 @@ static int check_quotactl_permission(struct super_block *sb, int type, int cmd,
         return security_quotactl(cmd, type, id, sb);
 }
 
+static void quota_sync_one(struct super_block *sb, void *arg)
+{
+        if (sb->s_qcop && sb->s_qcop->quota_sync)
+                sb->s_qcop->quota_sync(sb, *(int *)arg, 1);
+}
+
 static int quota_sync_all(int type)
 {
-        struct super_block *sb;
         int ret;
 
         if (type >= MAXQUOTAS)
                 return -EINVAL;
         ret = security_quotactl(Q_SYNC, type, 0, NULL);
-        if (ret)
-                return ret;
-
-        spin_lock(&sb_lock);
-restart:
-        list_for_each_entry(sb, &super_blocks, s_list) {
-                if (!sb->s_qcop || !sb->s_qcop->quota_sync)
-                        continue;
-
-                sb->s_count++;
-                spin_unlock(&sb_lock);
-                down_read(&sb->s_umount);
-                if (sb->s_root)
-                        sb->s_qcop->quota_sync(sb, type, 1);
-                up_read(&sb->s_umount);
-                spin_lock(&sb_lock);
-                if (__put_super_and_need_restart(sb))
-                        goto restart;
-        }
-        spin_unlock(&sb_lock);
-
-        return 0;
+        if (!ret)
+                iterate_supers(quota_sync_one, &type);
+        return ret;
 }
 
 static int quota_quotaon(struct super_block *sb, int type, int cmd, qid_t id,
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index f47cd212dee..a5ebae70dc6 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -52,14 +52,13 @@ static struct backing_dev_info ramfs_backing_dev_info = {
                           BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP,
 };
 
-struct inode *ramfs_get_inode(struct super_block *sb, int mode, dev_t dev)
+struct inode *ramfs_get_inode(struct super_block *sb,
+                                const struct inode *dir, int mode, dev_t dev)
 {
         struct inode * inode = new_inode(sb);
 
         if (inode) {
-                inode->i_mode = mode;
-                inode->i_uid = current_fsuid();
-                inode->i_gid = current_fsgid();
+                inode_init_owner(inode, dir, mode);
                 inode->i_mapping->a_ops = &ramfs_aops;
                 inode->i_mapping->backing_dev_info = &ramfs_backing_dev_info;
                 mapping_set_gfp_mask(inode->i_mapping, GFP_HIGHUSER);
@@ -95,15 +94,10 @@ struct inode *ramfs_get_inode(struct super_block *sb, int mode, dev_t dev)
 static int
 ramfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 {
-        struct inode * inode = ramfs_get_inode(dir->i_sb, mode, dev);
+        struct inode * inode = ramfs_get_inode(dir->i_sb, dir, mode, dev);
         int error = -ENOSPC;
 
         if (inode) {
-                if (dir->i_mode & S_ISGID) {
-                        inode->i_gid = dir->i_gid;
-                        if (S_ISDIR(mode))
-                                inode->i_mode |= S_ISGID;
-                }
                 d_instantiate(dentry, inode);
                 dget(dentry);   /* Extra count - pin the dentry in core */
                 error = 0;
@@ -130,13 +124,11 @@ static int ramfs_symlink(struct inode * dir, struct dentry *dentry, const char *
         struct inode *inode;
         int error = -ENOSPC;
 
-        inode = ramfs_get_inode(dir->i_sb, S_IFLNK|S_IRWXUGO, 0);
+        inode = ramfs_get_inode(dir->i_sb, dir, S_IFLNK|S_IRWXUGO, 0);
         if (inode) {
                 int l = strlen(symname)+1;
                 error = page_symlink(inode, symname, l);
                 if (!error) {
-                        if (dir->i_mode & S_ISGID)
-                                inode->i_gid = dir->i_gid;
                         d_instantiate(dentry, inode);
                         dget(dentry);
                         dir->i_mtime = dir->i_ctime = CURRENT_TIME;
@@ -241,7 +233,7 @@ int ramfs_fill_super(struct super_block *sb, void *data, int silent)
         sb->s_op                = &ramfs_ops;
         sb->s_time_gran         = 1;
 
-        inode = ramfs_get_inode(sb, S_IFDIR | fsi->mount_opts.mode, 0);
+        inode = ramfs_get_inode(sb, NULL, S_IFDIR | fsi->mount_opts.mode, 0);
         if (!inode) {
                 err = -ENOMEM;
                 goto fail;
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index d0c43cb99ff..ee78d4a0086 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -561,23 +561,13 @@ static int drop_new_inode(struct inode *inode)
 */
 static int new_inode_init(struct inode *inode, struct inode *dir, int mode)
 {
-
-        /* the quota init calls have to know who to charge the quota to, so
-         ** we have to set uid and gid here
-         */
-        inode->i_uid = current_fsuid();
-        inode->i_mode = mode;
         /* Make inode invalid - just in case we are going to drop it before
          * the initialization happens */
         INODE_PKEY(inode)->k_objectid = 0;
-
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        inode->i_mode |= S_ISGID;
-        } else {
-                inode->i_gid = current_fsgid();
-        }
+        /* the quota init calls have to know who to charge the quota to, so
+         ** we have to set uid and gid here
+         */
+        inode_init_owner(inode, dir, mode);
         dquot_initialize(inode);
         return 0;
 }
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index e7cc00e636d..8c4cf273c67 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -723,11 +723,11 @@ out:
                         (handler) = *(handlers)++)
 
 /* This is the implementation for the xattr plugin infrastructure */
-static inline struct xattr_handler *
-find_xattr_handler_prefix(struct xattr_handler **handlers,
+static inline const struct xattr_handler *
+find_xattr_handler_prefix(const struct xattr_handler **handlers,
                            const char *name)
 {
-        struct xattr_handler *xah;
+        const struct xattr_handler *xah;
 
         if (!handlers)
                 return NULL;
@@ -748,7 +748,7 @@ ssize_t
 reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
                   size_t size)
 {
-        struct xattr_handler *handler;
+        const struct xattr_handler *handler;
 
         handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
 
@@ -767,7 +767,7 @@ int
 reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
                   size_t size, int flags)
 {
-        struct xattr_handler *handler;
+        const struct xattr_handler *handler;
 
         handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
 
@@ -784,7 +784,7 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
  */
 int reiserfs_removexattr(struct dentry *dentry, const char *name)
 {
-        struct xattr_handler *handler;
+        const struct xattr_handler *handler;
         handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
 
         if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
@@ -807,7 +807,7 @@ static int listxattr_filler(void *buf, const char *name, int namelen,
         size_t size;
         if (name[0] != '.' ||
             (namelen != 1 && (name[1] != '.' || namelen != 2))) {
-                struct xattr_handler *handler;
+                const struct xattr_handler *handler;
                 handler = find_xattr_handler_prefix(b->dentry->d_sb->s_xattr,
                                                     name);
                 if (!handler)   /* Unsupported xattr name */
@@ -920,7 +920,7 @@ static int create_privroot(struct dentry *dentry) { return 0; }
 #endif
 
 /* Actual operations that are exported to VFS-land */
-struct xattr_handler *reiserfs_xattr_handlers[] = {
+const struct xattr_handler *reiserfs_xattr_handlers[] = {
 #ifdef CONFIG_REISERFS_FS_XATTR
         &reiserfs_xattr_user_handler,
         &reiserfs_xattr_trusted_handler,
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 9cdb759645a..536d697a8a2 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -500,7 +500,7 @@ static size_t posix_acl_access_list(struct dentry *dentry, char *list,
         return size;
 }
 
-struct xattr_handler reiserfs_posix_acl_access_handler = {
+const struct xattr_handler reiserfs_posix_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags = ACL_TYPE_ACCESS,
         .get = posix_acl_get,
@@ -520,7 +520,7 @@ static size_t posix_acl_default_list(struct dentry *dentry, char *list,
         return size;
 }
 
-struct xattr_handler reiserfs_posix_acl_default_handler = {
+const struct xattr_handler reiserfs_posix_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags = ACL_TYPE_DEFAULT,
         .get = posix_acl_get,
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index 7271a477c04..237c6928d3c 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -111,7 +111,7 @@ void reiserfs_security_free(struct reiserfs_security_handle *sec)
         sec->value = NULL;
 }
 
-struct xattr_handler reiserfs_xattr_security_handler = {
+const struct xattr_handler reiserfs_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .get = security_get,
         .set = security_set,
diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c
index 5b08aaca3da..9883736ce3e 100644
--- a/fs/reiserfs/xattr_trusted.c
+++ b/fs/reiserfs/xattr_trusted.c
@@ -48,7 +48,7 @@ static size_t trusted_list(struct dentry *dentry, char *list, size_t list_size,
         return len;
 }
 
-struct xattr_handler reiserfs_xattr_trusted_handler = {
+const struct xattr_handler reiserfs_xattr_trusted_handler = {
         .prefix = XATTR_TRUSTED_PREFIX,
         .get = trusted_get,
         .set = trusted_set,
diff --git a/fs/reiserfs/xattr_user.c b/fs/reiserfs/xattr_user.c
index 75d59c49b91..45ae1a00013 100644
--- a/fs/reiserfs/xattr_user.c
+++ b/fs/reiserfs/xattr_user.c
@@ -44,7 +44,7 @@ static size_t user_list(struct dentry *dentry, char *list, size_t list_size,
         return len;
 }
 
-struct xattr_handler reiserfs_xattr_user_handler = {
+const struct xattr_handler reiserfs_xattr_user_handler = {
         .prefix = XATTR_USER_PREFIX,
         .get = user_get,
         .set = user_set,
diff --git a/fs/statfs.c b/fs/statfs.c
new file mode 100644
index 00000000000..4ef021f3b61
--- /dev/null
+++ b/fs/statfs.c
@@ -0,0 +1,196 @@
+#include <linux/syscalls.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/namei.h>
+#include <linux/statfs.h>
+#include <linux/security.h>
+#include <linux/uaccess.h>
+
+int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
+{
+        int retval = -ENODEV;
+
+        if (dentry) {
+                retval = -ENOSYS;
+                if (dentry->d_sb->s_op->statfs) {
+                        memset(buf, 0, sizeof(*buf));
+                        retval = security_sb_statfs(dentry);
+                        if (retval)
+                                return retval;
+                        retval = dentry->d_sb->s_op->statfs(dentry, buf);
+                        if (retval == 0 && buf->f_frsize == 0)
+                                buf->f_frsize = buf->f_bsize;
+                }
+        }
+        return retval;
+}
+
+EXPORT_SYMBOL(vfs_statfs);
+
+static int vfs_statfs_native(struct dentry *dentry, struct statfs *buf)
+{
+        struct kstatfs st;
+        int retval;
+
+        retval = vfs_statfs(dentry, &st);
+        if (retval)
+                return retval;
+
+        if (sizeof(*buf) == sizeof(st))
+                memcpy(buf, &st, sizeof(st));
+        else {
+                if (sizeof buf->f_blocks == 4) {
+                        if ((st.f_blocks | st.f_bfree | st.f_bavail |
+                             st.f_bsize | st.f_frsize) &
+                            0xffffffff00000000ULL)
+                                return -EOVERFLOW;
+                        /*
+                         * f_files and f_ffree may be -1; it's okay to stuff
+                         * that into 32 bits
+                         */
+                        if (st.f_files != -1 &&
+                            (st.f_files & 0xffffffff00000000ULL))
+                                return -EOVERFLOW;
+                        if (st.f_ffree != -1 &&
+                            (st.f_ffree & 0xffffffff00000000ULL))
+                                return -EOVERFLOW;
+                }
+
+                buf->f_type = st.f_type;
+                buf->f_bsize = st.f_bsize;
+                buf->f_blocks = st.f_blocks;
+                buf->f_bfree = st.f_bfree;
+                buf->f_bavail = st.f_bavail;
+                buf->f_files = st.f_files;
+                buf->f_ffree = st.f_ffree;
+                buf->f_fsid = st.f_fsid;
+                buf->f_namelen = st.f_namelen;
+                buf->f_frsize = st.f_frsize;
+                memset(buf->f_spare, 0, sizeof(buf->f_spare));
+        }
+        return 0;
+}
+
+static int vfs_statfs64(struct dentry *dentry, struct statfs64 *buf)
+{
+        struct kstatfs st;
+        int retval;
+
+        retval = vfs_statfs(dentry, &st);
+        if (retval)
+                return retval;
+
+        if (sizeof(*buf) == sizeof(st))
+                memcpy(buf, &st, sizeof(st));
+        else {
+                buf->f_type = st.f_type;
+                buf->f_bsize = st.f_bsize;
+                buf->f_blocks = st.f_blocks;
+                buf->f_bfree = st.f_bfree;
+                buf->f_bavail = st.f_bavail;
+                buf->f_files = st.f_files;
+                buf->f_ffree = st.f_ffree;
+                buf->f_fsid = st.f_fsid;
+                buf->f_namelen = st.f_namelen;
+                buf->f_frsize = st.f_frsize;
+                memset(buf->f_spare, 0, sizeof(buf->f_spare));
+        }
+        return 0;
+}
+
+SYSCALL_DEFINE2(statfs, const char __user *, pathname, struct statfs __user *, buf)
+{
+        struct path path;
+        int error;
+
+        error = user_path(pathname, &path);
+        if (!error) {
+                struct statfs tmp;
+                error = vfs_statfs_native(path.dentry, &tmp);
+                if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
+                        error = -EFAULT;
+                path_put(&path);
+        }
+        return error;
+}
+
+SYSCALL_DEFINE3(statfs64, const char __user *, pathname, size_t, sz, struct statfs64 __user *, buf)
+{
+        struct path path;
+        long error;
+
+        if (sz != sizeof(*buf))
+                return -EINVAL;
+        error = user_path(pathname, &path);
+        if (!error) {
+                struct statfs64 tmp;
+                error = vfs_statfs64(path.dentry, &tmp);
+                if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
+                        error = -EFAULT;
+                path_put(&path);
+        }
+        return error;
+}
+
+SYSCALL_DEFINE2(fstatfs, unsigned int, fd, struct statfs __user *, buf)
+{
+        struct file *file;
+        struct statfs tmp;
+        int error;
+
+        error = -EBADF;
+        file = fget(fd);
+        if (!file)
+                goto out;
+        error = vfs_statfs_native(file->f_path.dentry, &tmp);
+        if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
+                error = -EFAULT;
+        fput(file);
+out:
+        return error;
+}
+
+SYSCALL_DEFINE3(fstatfs64, unsigned int, fd, size_t, sz, struct statfs64 __user *, buf)
+{
+        struct file *file;
+        struct statfs64 tmp;
+        int error;
+
+        if (sz != sizeof(*buf))
+                return -EINVAL;
+
+        error = -EBADF;
+        file = fget(fd);
+        if (!file)
+                goto out;
+        error = vfs_statfs64(file->f_path.dentry, &tmp);
+        if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
+                error = -EFAULT;
+        fput(file);
+out:
+        return error;
+}
+
+SYSCALL_DEFINE2(ustat, unsigned, dev, struct ustat __user *, ubuf)
+{
+        struct super_block *s;
+        struct ustat tmp;
+        struct kstatfs sbuf;
+        int err;
+
+        s = user_get_super(new_decode_dev(dev));
+        if (!s)
+                return -EINVAL;
+
+        err = vfs_statfs(s->s_root, &sbuf);
+        drop_super(s);
+        if (err)
+                return err;
+
+        memset(&tmp,0,sizeof(struct ustat));
+        tmp.f_tfree = sbuf.f_bfree;
+        tmp.f_tinode = sbuf.f_ffree;
+
+        return copy_to_user(ubuf, &tmp, sizeof(struct ustat)) ? -EFAULT : 0;
+}
diff --git a/fs/super.c b/fs/super.c
index 1527e6a0ee3..69688b15f1f 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -22,23 +22,15 @@
 
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/smp_lock.h>
 #include <linux/acct.h>
 #include <linux/blkdev.h>
 #include <linux/quotaops.h>
-#include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/security.h>
-#include <linux/syscalls.h>
-#include <linux/vfs.h>
 #include <linux/writeback.h>            /* for the emergency remount stuff */
 #include <linux/idr.h>
-#include <linux/kobject.h>
 #include <linux/mutex.h>
-#include <linux/file.h>
 #include <linux/backing-dev.h>
-#include <asm/uaccess.h>
 #include "internal.h"
 
 
@@ -93,9 +85,10 @@ static struct super_block *alloc_super(struct file_system_type *type)
                  * subclass.
                  */
                 down_write_nested(&s->s_umount, SINGLE_DEPTH_NESTING);
-                s->s_count = S_BIAS;
+                s->s_count = 1;
                 atomic_set(&s->s_active, 1);
                 mutex_init(&s->s_vfs_rename_mutex);
+                lockdep_set_class(&s->s_vfs_rename_mutex, &type->s_vfs_rename_key);
                 mutex_init(&s->s_dquot.dqio_mutex);
                 mutex_init(&s->s_dquot.dqonoff_mutex);
                 init_rwsem(&s->s_dquot.dqptr_sem);
@@ -127,39 +120,14 @@ static inline void destroy_super(struct super_block *s)
 /* Superblock refcounting  */
 
 /*
- * Drop a superblock's refcount.  Returns non-zero if the superblock was
- * destroyed.  The caller must hold sb_lock.
+ * Drop a superblock's refcount.  The caller must hold sb_lock.
  */
-static int __put_super(struct super_block *sb)
+void __put_super(struct super_block *sb)
 {
-        int ret = 0;
-
         if (!--sb->s_count) {
+                list_del_init(&sb->s_list);
                 destroy_super(sb);
-                ret = 1;
         }
-        return ret;
-}
-
-/*
- * Drop a superblock's refcount.
- * Returns non-zero if the superblock is about to be destroyed and
- * at least is already removed from super_blocks list, so if we are
- * making a loop through super blocks then we need to restart.
- * The caller must hold sb_lock.
- */
-int __put_super_and_need_restart(struct super_block *sb)
-{
-        /* check for race with generic_shutdown_super() */
-        if (list_empty(&sb->s_list)) {
-                /* super block is removed, need to restart... */
-                __put_super(sb);
-                return 1;
-        }
-        /* can't be the last, since s_list is still in use */
-        sb->s_count--;
-        BUG_ON(sb->s_count == 0);
-        return 0;
 }
 
 /**
@@ -178,57 +146,48 @@ void put_super(struct super_block *sb)
 
 
 /**
- *      deactivate_super        -       drop an active reference to superblock
+ *      deactivate_locked_super -       drop an active reference to superblock
  *      @s: superblock to deactivate
  *
- *      Drops an active reference to superblock, acquiring a temprory one if
- *      there is no active references left.  In that case we lock superblock,
+ *      Drops an active reference to superblock, converting it into a temprory
+ *      one if there is no other active references left.  In that case we
  *      tell fs driver to shut it down and drop the temporary reference we
  *      had just acquired.
+ *
+ *      Caller holds exclusive lock on superblock; that lock is released.
  */
-void deactivate_super(struct super_block *s)
+void deactivate_locked_super(struct super_block *s)
 {
         struct file_system_type *fs = s->s_type;
-        if (atomic_dec_and_lock(&s->s_active, &sb_lock)) {
-                s->s_count -= S_BIAS-1;
-                spin_unlock(&sb_lock);
+        if (atomic_dec_and_test(&s->s_active)) {
                 vfs_dq_off(s, 0);
-                down_write(&s->s_umount);
                 fs->kill_sb(s);
                 put_filesystem(fs);
                 put_super(s);
+        } else {
+                up_write(&s->s_umount);
         }
 }
 
-EXPORT_SYMBOL(deactivate_super);
+EXPORT_SYMBOL(deactivate_locked_super);
 
 /**
- *      deactivate_locked_super -       drop an active reference to superblock
+ *      deactivate_super        -       drop an active reference to superblock
  *      @s: superblock to deactivate
  *
- *      Equivalent of up_write(&s->s_umount); deactivate_super(s);, except that
- *      it does not unlock it until it's all over.  As the result, it's safe to
- *      use to dispose of new superblock on ->get_sb() failure exits - nobody
- *      will see the sucker until it's all over.  Equivalent using up_write +
- *      deactivate_super is safe for that purpose only if superblock is either
- *      safe to use or has NULL ->s_root when we unlock.
+ *      Variant of deactivate_locked_super(), except that superblock is *not*
+ *      locked by caller.  If we are going to drop the final active reference,
+ *      lock will be acquired prior to that.
  */
-void deactivate_locked_super(struct super_block *s)
+void deactivate_super(struct super_block *s)
 {
-        struct file_system_type *fs = s->s_type;
-        if (atomic_dec_and_lock(&s->s_active, &sb_lock)) {
-                s->s_count -= S_BIAS-1;
-                spin_unlock(&sb_lock);
-                vfs_dq_off(s, 0);
-                fs->kill_sb(s);
-                put_filesystem(fs);
-                put_super(s);
-        } else {
-                up_write(&s->s_umount);
+        if (!atomic_add_unless(&s->s_active, -1, 1)) {
+                down_write(&s->s_umount);
+                deactivate_locked_super(s);
         }
 }
 
-EXPORT_SYMBOL(deactivate_locked_super);
+EXPORT_SYMBOL(deactivate_super);
 
 /**
  *      grab_super - acquire an active reference
@@ -243,22 +202,17 @@ EXPORT_SYMBOL(deactivate_locked_super);
  */
 static int grab_super(struct super_block *s) __releases(sb_lock)
 {
+        if (atomic_inc_not_zero(&s->s_active)) {
+                spin_unlock(&sb_lock);
+                return 1;
+        }
+        /* it's going away */
         s->s_count++;
         spin_unlock(&sb_lock);
+        /* wait for it to die */
         down_write(&s->s_umount);
-        if (s->s_root) {
-                spin_lock(&sb_lock);
-                if (s->s_count > S_BIAS) {
-                        atomic_inc(&s->s_active);
-                        s->s_count--;
-                        spin_unlock(&sb_lock);
-                        return 1;
-                }
-                spin_unlock(&sb_lock);
-        }
         up_write(&s->s_umount);
         put_super(s);
-        yield();
         return 0;
 }
 
@@ -321,8 +275,7 @@ 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_list);
-        list_del(&sb->s_instances);
+        list_del_init(&sb->s_instances);
         spin_unlock(&sb_lock);
         up_write(&sb->s_umount);
 }
@@ -357,6 +310,7 @@ retry:
                                 up_write(&s->s_umount);
                                 destroy_super(s);
                         }
+                        down_write(&old->s_umount);
                         return old;
                 }
         }
@@ -408,11 +362,12 @@ EXPORT_SYMBOL(drop_super);
  */
 void sync_supers(void)
 {
-        struct super_block *sb;
+        struct super_block *sb, *n;
 
         spin_lock(&sb_lock);
-restart:
-        list_for_each_entry(sb, &super_blocks, s_list) {
+        list_for_each_entry_safe(sb, n, &super_blocks, s_list) {
+                if (list_empty(&sb->s_instances))
+                        continue;
                 if (sb->s_op->write_super && sb->s_dirt) {
                         sb->s_count++;
                         spin_unlock(&sb_lock);
@@ -423,14 +378,43 @@ restart:
                         up_read(&sb->s_umount);
 
                         spin_lock(&sb_lock);
-                        if (__put_super_and_need_restart(sb))
-                                goto restart;
+                        __put_super(sb);
                 }
         }
         spin_unlock(&sb_lock);
 }
 
 /**
+ *      iterate_supers - call function for all active superblocks
+ *      @f: function to call
+ *      @arg: argument to pass to it
+ *
+ *      Scans the superblock list and calls given function, passing it
+ *      locked superblock and given argument.
+ */
+void iterate_supers(void (*f)(struct super_block *, void *), void *arg)
+{
+        struct super_block *sb, *n;
+
+        spin_lock(&sb_lock);
+        list_for_each_entry_safe(sb, n, &super_blocks, s_list) {
+                if (list_empty(&sb->s_instances))
+                        continue;
+                sb->s_count++;
+                spin_unlock(&sb_lock);
+
+                down_read(&sb->s_umount);
+                if (sb->s_root)
+                        f(sb, arg);
+                up_read(&sb->s_umount);
+
+                spin_lock(&sb_lock);
+                __put_super(sb);
+        }
+        spin_unlock(&sb_lock);
+}
+
+/**
  *      get_super - get the superblock of a device
  *      @bdev: device to get the superblock for
  *      
@@ -438,7 +422,7 @@ restart:
  *      mounted on the device given. %NULL is returned if no match is found.
  */
 
-struct super_block * get_super(struct block_device *bdev)
+struct super_block *get_super(struct block_device *bdev)
 {
         struct super_block *sb;
 
@@ -448,17 +432,20 @@ 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))
+                        continue;
                 if (sb->s_bdev == bdev) {
                         sb->s_count++;
                         spin_unlock(&sb_lock);
                         down_read(&sb->s_umount);
+                        /* still alive? */
                         if (sb->s_root)
                                 return sb;
                         up_read(&sb->s_umount);
-                        /* restart only when sb is no longer on the list */
+                        /* nope, got unmounted */
                         spin_lock(&sb_lock);
-                        if (__put_super_and_need_restart(sb))
-                                goto rescan;
+                        __put_super(sb);
+                        goto rescan;
                 }
         }
         spin_unlock(&sb_lock);
@@ -473,7 +460,7 @@ EXPORT_SYMBOL(get_super);
  *
  * Scans the superblock list and finds the superblock of the file system
  * mounted on the device given.  Returns the superblock with an active
- * reference and s_umount held exclusively or %NULL if none was found.
+ * reference or %NULL if none was found.
  */
 struct super_block *get_active_super(struct block_device *bdev)
 {
@@ -482,81 +469,49 @@ struct super_block *get_active_super(struct block_device *bdev)
         if (!bdev)
                 return NULL;
 
+restart:
         spin_lock(&sb_lock);
         list_for_each_entry(sb, &super_blocks, s_list) {
-                if (sb->s_bdev != bdev)
+                if (list_empty(&sb->s_instances))
                         continue;
-
-                sb->s_count++;
-                spin_unlock(&sb_lock);
-                down_write(&sb->s_umount);
-                if (sb->s_root) {
-                        spin_lock(&sb_lock);
-                        if (sb->s_count > S_BIAS) {
-                                atomic_inc(&sb->s_active);
-                                sb->s_count--;
-                                spin_unlock(&sb_lock);
+                if (sb->s_bdev == bdev) {
+                        if (grab_super(sb)) /* drops sb_lock */
                                 return sb;
-                        }
-                        spin_unlock(&sb_lock);
+                        else
+                                goto restart;
                 }
-                up_write(&sb->s_umount);
-                put_super(sb);
-                yield();
-                spin_lock(&sb_lock);
         }
         spin_unlock(&sb_lock);
         return NULL;
 }
  
-struct super_block * user_get_super(dev_t dev)
+struct super_block *user_get_super(dev_t dev)
 {
         struct super_block *sb;
 
         spin_lock(&sb_lock);
 rescan:
         list_for_each_entry(sb, &super_blocks, s_list) {
+                if (list_empty(&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)
                                 return sb;
                         up_read(&sb->s_umount);
-                        /* restart only when sb is no longer on the list */
+                        /* nope, got unmounted */
                         spin_lock(&sb_lock);
-                        if (__put_super_and_need_restart(sb))
-                                goto rescan;
+                        __put_super(sb);
+                        goto rescan;
                 }
         }
         spin_unlock(&sb_lock);
         return NULL;
 }
 
-SYSCALL_DEFINE2(ustat, unsigned, dev, struct ustat __user *, ubuf)
-{
-        struct super_block *s;
-        struct ustat tmp;
-        struct kstatfs sbuf;
-        int err = -EINVAL;
-
-        s = user_get_super(new_decode_dev(dev));
-        if (s == NULL)
-                goto out;
-        err = vfs_statfs(s->s_root, &sbuf);
-        drop_super(s);
-        if (err)
-                goto out;
-
-        memset(&tmp,0,sizeof(struct ustat));
-        tmp.f_tfree = sbuf.f_bfree;
-        tmp.f_tinode = sbuf.f_ffree;
-
-        err = copy_to_user(ubuf,&tmp,sizeof(struct ustat)) ? -EFAULT : 0;
-out:
-        return err;
-}
-
 /**
  *      do_remount_sb - asks filesystem to change mount options.
  *      @sb:    superblock in question
@@ -622,24 +577,24 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 
 static void do_emergency_remount(struct work_struct *work)
 {
-        struct super_block *sb;
+        struct super_block *sb, *n;
 
         spin_lock(&sb_lock);
-        list_for_each_entry(sb, &super_blocks, s_list) {
+        list_for_each_entry_safe(sb, n, &super_blocks, s_list) {
+                if (list_empty(&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)) {
                         /*
-                         * ->remount_fs needs lock_kernel().
-                         *
                          * What lock protects sb->s_flags??
                          */
                         do_remount_sb(sb, MS_RDONLY, NULL, 1);
                 }
                 up_write(&sb->s_umount);
-                put_super(sb);
                 spin_lock(&sb_lock);
+                __put_super(sb);
         }
         spin_unlock(&sb_lock);
         kfree(work);
@@ -990,6 +945,96 @@ out:
 
 EXPORT_SYMBOL_GPL(vfs_kern_mount);
 
+/**
+ * freeze_super -- lock the filesystem and force it into a consistent state
+ * @super: the super to lock
+ *
+ * Syncs the super to make sure the filesystem is consistent and calls the fs's
+ * freeze_fs.  Subsequent calls to this without first thawing the fs will return
+ * -EBUSY.
+ */
+int freeze_super(struct super_block *sb)
+{
+        int ret;
+
+        atomic_inc(&sb->s_active);
+        down_write(&sb->s_umount);
+        if (sb->s_frozen) {
+                deactivate_locked_super(sb);
+                return -EBUSY;
+        }
+
+        if (sb->s_flags & MS_RDONLY) {
+                sb->s_frozen = SB_FREEZE_TRANS;
+                smp_wmb();
+                up_write(&sb->s_umount);
+                return 0;
+        }
+
+        sb->s_frozen = SB_FREEZE_WRITE;
+        smp_wmb();
+
+        sync_filesystem(sb);
+
+        sb->s_frozen = SB_FREEZE_TRANS;
+        smp_wmb();
+
+        sync_blockdev(sb->s_bdev);
+        if (sb->s_op->freeze_fs) {
+                ret = sb->s_op->freeze_fs(sb);
+                if (ret) {
+                        printk(KERN_ERR
+                                "VFS:Filesystem freeze failed\n");
+                        sb->s_frozen = SB_UNFROZEN;
+                        deactivate_locked_super(sb);
+                        return ret;
+                }
+        }
+        up_write(&sb->s_umount);
+        return 0;
+}
+EXPORT_SYMBOL(freeze_super);
+
+/**
+ * thaw_super -- unlock filesystem
+ * @sb: the super to thaw
+ *
+ * Unlocks the filesystem and marks it writeable again after freeze_super().
+ */
+int thaw_super(struct super_block *sb)
+{
+        int error;
+
+        down_write(&sb->s_umount);
+        if (sb->s_frozen == SB_UNFROZEN) {
+                up_write(&sb->s_umount);
+                return -EINVAL;
+        }
+
+        if (sb->s_flags & MS_RDONLY)
+                goto out;
+
+        if (sb->s_op->unfreeze_fs) {
+                error = sb->s_op->unfreeze_fs(sb);
+                if (error) {
+                        printk(KERN_ERR
+                                "VFS:Filesystem thaw failed\n");
+                        sb->s_frozen = SB_FREEZE_TRANS;
+                        up_write(&sb->s_umount);
+                        return error;
+                }
+        }
+
+out:
+        sb->s_frozen = SB_UNFROZEN;
+        smp_wmb();
+        wake_up(&sb->s_wait_unfrozen);
+        deactivate_locked_super(sb);
+
+        return 0;
+}
+EXPORT_SYMBOL(thaw_super);
+
 static struct vfsmount *fs_set_subtype(struct vfsmount *mnt, const char *fstype)
 {
         int err;
diff --git a/fs/sync.c b/fs/sync.c
index de6a4419283..e8cbd415e50 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -77,50 +77,18 @@ int sync_filesystem(struct super_block *sb)
 }
 EXPORT_SYMBOL_GPL(sync_filesystem);
 
+static void sync_one_sb(struct super_block *sb, void *arg)
+{
+        if (!(sb->s_flags & MS_RDONLY) && sb->s_bdi)
+                __sync_filesystem(sb, *(int *)arg);
+}
 /*
  * Sync all the data for all the filesystems (called by sys_sync() and
  * emergency sync)
- *
- * This operation is careful to avoid the livelock which could easily happen
- * if two or more filesystems are being continuously dirtied.  s_need_sync
- * is used only here.  We set it against all filesystems and then clear it as
- * we sync them.  So redirtied filesystems are skipped.
- *
- * But if process A is currently running sync_filesystems and then process B
- * calls sync_filesystems as well, process B will set all the s_need_sync
- * flags again, which will cause process A to resync everything.  Fix that with
- * a local mutex.
  */
 static void sync_filesystems(int wait)
 {
-        struct super_block *sb;
-        static DEFINE_MUTEX(mutex);
-
-        mutex_lock(&mutex);             /* Could be down_interruptible */
-        spin_lock(&sb_lock);
-        list_for_each_entry(sb, &super_blocks, s_list)
-                sb->s_need_sync = 1;
-
-restart:
-        list_for_each_entry(sb, &super_blocks, s_list) {
-                if (!sb->s_need_sync)
-                        continue;
-                sb->s_need_sync = 0;
-                sb->s_count++;
-                spin_unlock(&sb_lock);
-
-                down_read(&sb->s_umount);
-                if (!(sb->s_flags & MS_RDONLY) && sb->s_root && sb->s_bdi)
-                        __sync_filesystem(sb, wait);
-                up_read(&sb->s_umount);
-
-                /* restart only when sb is no longer on the list */
-                spin_lock(&sb_lock);
-                if (__put_super_and_need_restart(sb))
-                        goto restart;
-        }
-        spin_unlock(&sb_lock);
-        mutex_unlock(&mutex);
+        iterate_supers(sync_one_sb, &wait);
 }
 
 /*
@@ -190,7 +158,6 @@ EXPORT_SYMBOL(file_fsync);
 /**
  * vfs_fsync_range - helper to sync a range of data & metadata to disk
  * @file:               file to sync
- * @dentry:             dentry of @file
  * @start:              offset in bytes of the beginning of data range to sync
  * @end:                offset in bytes of the end of data range (inclusive)
  * @datasync:           perform only datasync
@@ -198,32 +165,13 @@ EXPORT_SYMBOL(file_fsync);
  * Write back data in range @start..@end and metadata for @file to disk.  If
  * @datasync is set only metadata needed to access modified file data is
  * written.
- *
- * In case this function is called from nfsd @file may be %NULL and
- * only @dentry is set.  This can only happen when the filesystem
- * implements the export_operations API.
  */
-int vfs_fsync_range(struct file *file, struct dentry *dentry, loff_t start,
-                    loff_t end, int datasync)
+int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync)
 {
-        const struct file_operations *fop;
-        struct address_space *mapping;
+        struct address_space *mapping = file->f_mapping;
         int err, ret;
 
-        /*
-         * Get mapping and operations from the file in case we have
-         * as file, or get the default values for them in case we
-         * don't have a struct file available.  Damn nfsd..
-         */
-        if (file) {
-                mapping = file->f_mapping;
-                fop = file->f_op;
-        } else {
-                mapping = dentry->d_inode->i_mapping;
-                fop = dentry->d_inode->i_fop;
-        }
-
-        if (!fop || !fop->fsync) {
+        if (!file->f_op || !file->f_op->fsync) {
                 ret = -EINVAL;
                 goto out;
         }
@@ -235,7 +183,7 @@ int vfs_fsync_range(struct file *file, struct dentry *dentry, loff_t start,
          * livelocks in fsync_buffers_list().
          */
         mutex_lock(&mapping->host->i_mutex);
-        err = fop->fsync(file, dentry, datasync);
+        err = file->f_op->fsync(file, file->f_path.dentry, datasync);
         if (!ret)
                 ret = err;
         mutex_unlock(&mapping->host->i_mutex);
@@ -248,19 +196,14 @@ EXPORT_SYMBOL(vfs_fsync_range);
 /**
  * vfs_fsync - perform a fsync or fdatasync on a file
  * @file:               file to sync
- * @dentry:             dentry of @file
  * @datasync:           only perform a fdatasync operation
  *
  * Write back data and metadata for @file to disk.  If @datasync is
  * set only metadata needed to access modified file data is written.
- *
- * In case this function is called from nfsd @file may be %NULL and
- * only @dentry is set.  This can only happen when the filesystem
- * implements the export_operations API.
  */
-int vfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int vfs_fsync(struct file *file, int datasync)
 {
-        return vfs_fsync_range(file, dentry, 0, LLONG_MAX, datasync);
+        return vfs_fsync_range(file, 0, LLONG_MAX, datasync);
 }
 EXPORT_SYMBOL(vfs_fsync);
 
@@ -271,7 +214,7 @@ static int do_fsync(unsigned int fd, int datasync)
 
         file = fget(fd);
         if (file) {
-                ret = vfs_fsync(file, file->f_path.dentry, datasync);
+                ret = vfs_fsync(file, datasync);
                 fput(file);
         }
         return ret;
@@ -299,8 +242,7 @@ int generic_write_sync(struct file *file, loff_t pos, loff_t count)
 {
         if (!(file->f_flags & O_DSYNC) && !IS_SYNC(file->f_mapping->host))
                 return 0;
-        return vfs_fsync_range(file, file->f_path.dentry, pos,
-                               pos + count - 1,
+        return vfs_fsync_range(file, pos, pos + count - 1,
                                (file->f_flags & __O_SYNC) ? 0 : 1);
 }
 EXPORT_SYMBOL(generic_write_sync);
diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c
index 241e9765cfa..bbd69bdb0fa 100644
--- a/fs/sysv/ialloc.c
+++ b/fs/sysv/ialloc.c
@@ -159,15 +159,7 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode)
         *sbi->s_sb_fic_count = cpu_to_fs16(sbi, count);
         fs16_add(sbi, sbi->s_sb_total_free_inodes, -1);
         dirty_sb(sb);
-        
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else
-                inode->i_gid = current_fsgid();
-
-        inode->i_uid = current_fsuid();
+        inode_init_owner(inode, dir, mode);
         inode->i_ino = fs16_to_cpu(sbi, ino);
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
         inode->i_blocks = 0;
@@ -176,7 +168,6 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode)
         insert_inode_hash(inode);
         mark_inode_dirty(inode);
 
-        inode->i_mode = mode;           /* for sysv_write_inode() */
         sysv_write_inode(inode, 0);     /* ensure inode not allocated again */
         mark_inode_dirty(inode);        /* cleared by sysv_write_inode() */
         /* That's it. */
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 401e503d44a..87ebcce7221 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -104,14 +104,7 @@ struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
          */
         inode->i_flags |= (S_NOCMTIME);
 
-        inode->i_uid = current_fsuid();
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else
-                inode->i_gid = current_fsgid();
-        inode->i_mode = mode;
+        inode_init_owner(inode, dir, mode);
         inode->i_mtime = inode->i_atime = inode->i_ctime =
                          ubifs_current_time(inode);
         inode->i_mapping->nrpages = 0;
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index fb68c9cd0c3..2b5586c7f02 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -124,15 +124,8 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
                 udf_updated_lvid(sb);
         }
         mutex_unlock(&sbi->s_alloc_mutex);
-        inode->i_mode = mode;
-        inode->i_uid = current_fsuid();
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        mode |= S_ISGID;
-        } else {
-                inode->i_gid = current_fsgid();
-        }
+
+        inode_init_owner(inode, dir, mode);
 
         iinfo->i_location.logicalBlockNum = block;
         iinfo->i_location.partitionReferenceNum =
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 75816025f95..585f733615d 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -579,7 +579,6 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
                 inode->i_data.a_ops = &udf_aops;
         inode->i_op = &udf_file_inode_operations;
         inode->i_fop = &udf_file_operations;
-        inode->i_mode = mode;
         mark_inode_dirty(inode);
 
         fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
@@ -627,7 +626,6 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
                 goto out;
 
         iinfo = UDF_I(inode);
-        inode->i_uid = current_fsuid();
         init_special_inode(inode, mode, rdev);
         fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
         if (!fi) {
@@ -674,7 +672,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                 goto out;
 
         err = -EIO;
-        inode = udf_new_inode(dir, S_IFDIR, &err);
+        inode = udf_new_inode(dir, S_IFDIR | mode, &err);
         if (!inode)
                 goto out;
 
@@ -697,9 +695,6 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                         FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
         udf_write_fi(inode, &cfi, fi, &fibh, NULL, NULL);
         brelse(fibh.sbh);
-        inode->i_mode = S_IFDIR | mode;
-        if (dir->i_mode & S_ISGID)
-                inode->i_mode |= S_ISGID;
         mark_inode_dirty(inode);
 
         fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
@@ -912,7 +907,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
         dquot_initialize(dir);
 
         lock_kernel();
-        inode = udf_new_inode(dir, S_IFLNK, &err);
+        inode = udf_new_inode(dir, S_IFLNK | S_IRWXUGO, &err);
         if (!inode)
                 goto out;
 
@@ -923,7 +918,6 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
         }
 
         iinfo = UDF_I(inode);
-        inode->i_mode = S_IFLNK | S_IRWXUGO;
         inode->i_data.a_ops = &udf_symlink_aops;
         inode->i_op = &udf_symlink_inode_operations;
 
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 230ecf60802..3a959d55084 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -303,15 +303,7 @@ cg_found:
         sb->s_dirt = 1;
 
         inode->i_ino = cg * uspi->s_ipg + bit;
-        inode->i_mode = mode;
-        inode->i_uid = current_fsuid();
-        if (dir->i_mode & S_ISGID) {
-                inode->i_gid = dir->i_gid;
-                if (S_ISDIR(mode))
-                        inode->i_mode |= S_ISGID;
-        } else
-                inode->i_gid = current_fsgid();
-
+        inode_init_owner(inode, dir, mode);
         inode->i_blocks = 0;
         inode->i_generation = 0;
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
diff --git a/fs/xattr.c b/fs/xattr.c
index 46f87e828b4..01bb8135e14 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -590,10 +590,10 @@ strcmp_prefix(const char *a, const char *a_prefix)
 /*
  * Find the xattr_handler with the matching prefix.
  */
-static struct xattr_handler *
-xattr_resolve_name(struct xattr_handler **handlers, const char **name)
+static const struct xattr_handler *
+xattr_resolve_name(const struct xattr_handler **handlers, const char **name)
 {
-        struct xattr_handler *handler;
+        const struct xattr_handler *handler;
 
         if (!*name)
                 return NULL;
@@ -614,7 +614,7 @@ xattr_resolve_name(struct xattr_handler **handlers, const char **name)
 ssize_t
 generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size)
 {
-        struct xattr_handler *handler;
+        const struct xattr_handler *handler;
 
         handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
         if (!handler)
@@ -629,7 +629,7 @@ generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t s
 ssize_t
 generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
 {
-        struct xattr_handler *handler, **handlers = dentry->d_sb->s_xattr;
+        const struct xattr_handler *handler, **handlers = dentry->d_sb->s_xattr;
         unsigned int size = 0;
 
         if (!buffer) {
@@ -659,7 +659,7 @@ generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
 int
 generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags)
 {
-        struct xattr_handler *handler;
+        const struct xattr_handler *handler;
 
         if (size == 0)
                 value = "";  /* empty EA, do not remove */
@@ -676,7 +676,7 @@ generic_setxattr(struct dentry *dentry, const char *name, const void *value, siz
 int
 generic_removexattr(struct dentry *dentry, const char *name)
 {
-        struct xattr_handler *handler;
+        const struct xattr_handler *handler;
 
         handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
         if (!handler)
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index a7bc925c4d6..9f769b5b38f 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -440,14 +440,14 @@ xfs_xattr_acl_set(struct dentry *dentry, const char *name,
         return error;
 }
 
-struct xattr_handler xfs_xattr_acl_access_handler = {
+const struct xattr_handler xfs_xattr_acl_access_handler = {
         .prefix = POSIX_ACL_XATTR_ACCESS,
         .flags  = ACL_TYPE_ACCESS,
         .get    = xfs_xattr_acl_get,
         .set    = xfs_xattr_acl_set,
 };
 
-struct xattr_handler xfs_xattr_acl_default_handler = {
+const struct xattr_handler xfs_xattr_acl_default_handler = {
         .prefix = POSIX_ACL_XATTR_DEFAULT,
         .flags  = ACL_TYPE_DEFAULT,
         .get    = xfs_xattr_acl_get,
diff --git a/fs/xfs/linux-2.6/xfs_super.h b/fs/xfs/linux-2.6/xfs_super.h
index 233d4b9881b..519618e9279 100644
--- a/fs/xfs/linux-2.6/xfs_super.h
+++ b/fs/xfs/linux-2.6/xfs_super.h
@@ -85,7 +85,7 @@ extern __uint64_t xfs_max_file_offset(unsigned int);
 extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);
 
 extern const struct export_operations xfs_export_operations;
-extern struct xattr_handler *xfs_xattr_handlers[];
+extern const struct xattr_handler *xfs_xattr_handlers[];
 extern const struct quotactl_ops xfs_quotactl_operations;
 
 #define XFS_M(sb)               ((struct xfs_mount *)((sb)->s_fs_info))
diff --git a/fs/xfs/linux-2.6/xfs_xattr.c b/fs/xfs/linux-2.6/xfs_xattr.c
index fa01b9daba6..87d3e03878c 100644
--- a/fs/xfs/linux-2.6/xfs_xattr.c
+++ b/fs/xfs/linux-2.6/xfs_xattr.c
@@ -72,28 +72,28 @@ xfs_xattr_set(struct dentry *dentry, const char *name, const void *value,
                                 (void *)value, size, xflags);
 }
 
-static struct xattr_handler xfs_xattr_user_handler = {
+static const struct xattr_handler xfs_xattr_user_handler = {
         .prefix = XATTR_USER_PREFIX,
         .flags  = 0, /* no flags implies user namespace */
         .get    = xfs_xattr_get,
         .set    = xfs_xattr_set,
 };
 
-static struct xattr_handler xfs_xattr_trusted_handler = {
+static const struct xattr_handler xfs_xattr_trusted_handler = {
         .prefix = XATTR_TRUSTED_PREFIX,
         .flags  = ATTR_ROOT,
         .get    = xfs_xattr_get,
         .set    = xfs_xattr_set,
 };
 
-static struct xattr_handler xfs_xattr_security_handler = {
+static const struct xattr_handler xfs_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .flags  = ATTR_SECURE,
         .get    = xfs_xattr_get,
         .set    = xfs_xattr_set,
 };
 
-struct xattr_handler *xfs_xattr_handlers[] = {
+const struct xattr_handler *xfs_xattr_handlers[] = {
         &xfs_xattr_user_handler,
         &xfs_xattr_trusted_handler,
         &xfs_xattr_security_handler,
diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h
index d13eeba2c8f..0135e2a669d 100644
--- a/fs/xfs/xfs_acl.h
+++ b/fs/xfs/xfs_acl.h
@@ -49,8 +49,8 @@ extern int xfs_acl_chmod(struct inode *inode);
 extern int posix_acl_access_exists(struct inode *inode);
 extern int posix_acl_default_exists(struct inode *inode);
 
-extern struct xattr_handler xfs_xattr_acl_access_handler;
-extern struct xattr_handler xfs_xattr_acl_default_handler;
+extern const struct xattr_handler xfs_xattr_acl_access_handler;
+extern const struct xattr_handler xfs_xattr_acl_default_handler;
 #else
 # define xfs_check_acl                                  NULL
 # define xfs_get_acl(inode, type)                       NULL
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 1775d362732..b336cb9ca9a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1315,8 +1315,6 @@ extern int send_sigurg(struct fown_struct *fown);
 extern struct list_head super_blocks;
 extern spinlock_t sb_lock;
 
-#define sb_entry(list)  list_entry((list), struct super_block, s_list)
-#define S_BIAS (1<<30)
 struct super_block {
         struct list_head        s_list;         /* Keep this first */
         dev_t                   s_dev;          /* search index; _not_ kdev_t */
@@ -1335,12 +1333,11 @@ struct super_block {
         struct rw_semaphore     s_umount;
         struct mutex            s_lock;
         int                     s_count;
-        int                     s_need_sync;
         atomic_t                s_active;
 #ifdef CONFIG_SECURITY
         void                    *s_security;
 #endif
-        struct xattr_handler    **s_xattr;
+        const struct xattr_handler **s_xattr;
 
         struct list_head        s_inodes;       /* all inodes */
         struct hlist_head       s_anon;         /* anonymous dentries for (nfs) exporting */
@@ -1432,7 +1429,8 @@ extern void dentry_unhash(struct dentry *dentry);
  * VFS file helper functions.
  */
 extern int file_permission(struct file *, int);
-
+extern void inode_init_owner(struct inode *inode, const struct inode *dir,
+                        mode_t mode);
 /*
  * VFS FS_IOC_FIEMAP helper definitions.
  */
@@ -1745,6 +1743,7 @@ struct file_system_type {
 
         struct lock_class_key s_lock_key;
         struct lock_class_key s_umount_key;
+        struct lock_class_key s_vfs_rename_key;
 
         struct lock_class_key i_lock_key;
         struct lock_class_key i_mutex_key;
@@ -1782,8 +1781,6 @@ extern int get_sb_pseudo(struct file_system_type *, char *,
         const struct super_operations *ops, unsigned long,
         struct vfsmount *mnt);
 extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
-int __put_super_and_need_restart(struct super_block *sb);
-void put_super(struct super_block *sb);
 
 /* Alas, no aliases. Too much hassle with bringing module.h everywhere */
 #define fops_get(fops) \
@@ -1803,6 +1800,8 @@ extern void drop_collected_mounts(struct vfsmount *);
 extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
                           struct vfsmount *);
 extern int vfs_statfs(struct dentry *, struct kstatfs *);
+extern int freeze_super(struct super_block *super);
+extern int thaw_super(struct super_block *super);
 
 extern int current_umask(void);
 
@@ -2088,9 +2087,9 @@ extern int __filemap_fdatawrite_range(struct address_space *mapping,
 extern int filemap_fdatawrite_range(struct address_space *mapping,
                                 loff_t start, loff_t end);
 
-extern int vfs_fsync_range(struct file *file, struct dentry *dentry,
-                           loff_t start, loff_t end, int datasync);
-extern int vfs_fsync(struct file *file, struct dentry *dentry, int datasync);
+extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
+                           int datasync);
+extern int vfs_fsync(struct file *file, int datasync);
 extern int generic_write_sync(struct file *file, loff_t pos, loff_t count);
 extern void sync_supers(void);
 extern void emergency_sync(void);
@@ -2330,6 +2329,7 @@ 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 int dcache_dir_open(struct inode *, struct file *);
 extern int dcache_dir_close(struct inode *, struct file *);
diff --git a/include/linux/generic_acl.h b/include/linux/generic_acl.h
index ca666d18ed6..574bea4013b 100644
--- a/include/linux/generic_acl.h
+++ b/include/linux/generic_acl.h
@@ -5,8 +5,8 @@
 
 struct inode;
 
-extern struct xattr_handler generic_acl_access_handler;
-extern struct xattr_handler generic_acl_default_handler;
+extern const struct xattr_handler generic_acl_access_handler;
+extern const struct xattr_handler generic_acl_default_handler;
 
 int generic_acl_init(struct inode *, struct inode *);
 int generic_acl_chmod(struct inode *);
diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h
index 8600508c77a..e7320b5e82f 100644
--- a/include/linux/ramfs.h
+++ b/include/linux/ramfs.h
@@ -1,7 +1,8 @@
 #ifndef _LINUX_RAMFS_H
 #define _LINUX_RAMFS_H
 
-struct inode *ramfs_get_inode(struct super_block *sb, int mode, dev_t dev);
+struct inode *ramfs_get_inode(struct super_block *sb, const struct inode *dir,
+         int mode, dev_t dev);
 extern int ramfs_get_sb(struct file_system_type *fs_type,
          int flags, const char *dev_name, void *data, struct vfsmount *mnt);
 
diff --git a/include/linux/reiserfs_acl.h b/include/linux/reiserfs_acl.h
index b4448853900..3fd8c4506bb 100644
--- a/include/linux/reiserfs_acl.h
+++ b/include/linux/reiserfs_acl.h
@@ -53,8 +53,8 @@ int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
                                  struct inode *dir, struct dentry *dentry,
                                  struct inode *inode);
 int reiserfs_cache_default_acl(struct inode *dir);
-extern struct xattr_handler reiserfs_posix_acl_default_handler;
-extern struct xattr_handler reiserfs_posix_acl_access_handler;
+extern const struct xattr_handler reiserfs_posix_acl_default_handler;
+extern const struct xattr_handler reiserfs_posix_acl_access_handler;
 
 #else
 
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 7fa02b4af83..b2cf2089769 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -58,9 +58,9 @@ int reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *,
                               struct inode *, const char *, const void *,
                               size_t, int);
 
-extern struct xattr_handler reiserfs_xattr_user_handler;
-extern struct xattr_handler reiserfs_xattr_trusted_handler;
-extern struct xattr_handler reiserfs_xattr_security_handler;
+extern const struct xattr_handler reiserfs_xattr_user_handler;
+extern const struct xattr_handler reiserfs_xattr_trusted_handler;
+extern const struct xattr_handler reiserfs_xattr_security_handler;
 #ifdef CONFIG_REISERFS_FS_SECURITY
 int reiserfs_security_init(struct inode *dir, struct inode *inode,
                            struct reiserfs_security_handle *sec);
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index fb9b7e6e1e2..0cfa1e9c4cc 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -37,7 +37,7 @@ struct inode;
 struct dentry;
 
 struct xattr_handler {
-        char *prefix;
+        const char *prefix;
         int flags;      /* fs private flags passed back to the handlers */
         size_t (*list)(struct dentry *dentry, char *list, size_t list_size,
                        const char *name, size_t name_len, int handler_flags);
diff --git a/mm/msync.c b/mm/msync.c
index 4083209b7f0..632df4527c0 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -82,7 +82,7 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
                                 (vma->vm_flags & VM_SHARED)) {
                         get_file(file);
                         up_read(&mm->mmap_sem);
-                        error = vfs_fsync(file, file->f_path.dentry, 0);
+                        error = vfs_fsync(file, 0);
                         fput(file);
                         if (error || start >= end)
                                 goto out;
diff --git a/mm/shmem.c b/mm/shmem.c
index eef4ebea515..0cd7f66f1c6 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1545,8 +1545,8 @@ static int shmem_mmap(struct file *file, struct vm_area_struct *vma)
         return 0;
 }
 
-static struct inode *shmem_get_inode(struct super_block *sb, int mode,
-                                        dev_t dev, unsigned long flags)
+static struct inode *shmem_get_inode(struct super_block *sb, const struct inode *dir,
+                                     int mode, dev_t dev, unsigned long flags)
 {
         struct inode *inode;
         struct shmem_inode_info *info;
@@ -1557,9 +1557,7 @@ static struct inode *shmem_get_inode(struct super_block *sb, int mode,
 
         inode = new_inode(sb);
         if (inode) {
-                inode->i_mode = mode;
-                inode->i_uid = current_fsuid();
-                inode->i_gid = current_fsgid();
+                inode_init_owner(inode, dir, mode);
                 inode->i_blocks = 0;
                 inode->i_mapping->backing_dev_info = &shmem_backing_dev_info;
                 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -1814,7 +1812,7 @@ shmem_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
         struct inode *inode;
         int error = -ENOSPC;
 
-        inode = shmem_get_inode(dir->i_sb, mode, dev, VM_NORESERVE);
+        inode = shmem_get_inode(dir->i_sb, dir, mode, dev, VM_NORESERVE);
         if (inode) {
                 error = security_inode_init_security(inode, dir, NULL, NULL,
                                                      NULL);
@@ -1833,11 +1831,6 @@ shmem_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 #else
                 error = 0;
 #endif
-                if (dir->i_mode & S_ISGID) {
-                        inode->i_gid = dir->i_gid;
-                        if (S_ISDIR(mode))
-                                inode->i_mode |= S_ISGID;
-                }
                 dir->i_size += BOGO_DIRENT_SIZE;
                 dir->i_ctime = dir->i_mtime = CURRENT_TIME;
                 d_instantiate(dentry, inode);
@@ -1957,7 +1950,7 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
         if (len > PAGE_CACHE_SIZE)
                 return -ENAMETOOLONG;
 
-        inode = shmem_get_inode(dir->i_sb, S_IFLNK|S_IRWXUGO, 0, VM_NORESERVE);
+        inode = shmem_get_inode(dir->i_sb, dir, S_IFLNK|S_IRWXUGO, 0, VM_NORESERVE);
         if (!inode)
                 return -ENOSPC;
 
@@ -1992,8 +1985,6 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
                 unlock_page(page);
                 page_cache_release(page);
         }
-        if (dir->i_mode & S_ISGID)
-                inode->i_gid = dir->i_gid;
         dir->i_size += BOGO_DIRENT_SIZE;
         dir->i_ctime = dir->i_mtime = CURRENT_TIME;
         d_instantiate(dentry, inode);
@@ -2071,14 +2062,14 @@ static int shmem_xattr_security_set(struct dentry *dentry, const char *name,
                                           size, flags);
 }
 
-static struct xattr_handler shmem_xattr_security_handler = {
+static const struct xattr_handler shmem_xattr_security_handler = {
         .prefix = XATTR_SECURITY_PREFIX,
         .list   = shmem_xattr_security_list,
         .get    = shmem_xattr_security_get,
         .set    = shmem_xattr_security_set,
 };
 
-static struct xattr_handler *shmem_xattr_handlers[] = {
+static const struct xattr_handler *shmem_xattr_handlers[] = {
         &generic_acl_access_handler,
         &generic_acl_default_handler,
         &shmem_xattr_security_handler,
@@ -2366,7 +2357,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
         sb->s_flags |= MS_POSIXACL;
 #endif
 
-        inode = shmem_get_inode(sb, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
+        inode = shmem_get_inode(sb, NULL, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
         if (!inode)
                 goto failed;
         inode->i_uid = sbinfo->uid;
@@ -2611,7 +2602,7 @@ int shmem_lock(struct file *file, int lock, struct user_struct *user)
 
 #define shmem_vm_ops                            generic_file_vm_ops
 #define shmem_file_operations                   ramfs_file_operations
-#define shmem_get_inode(sb, mode, dev, flags)   ramfs_get_inode(sb, mode, dev)
+#define shmem_get_inode(sb, dir, mode, dev, flags)      ramfs_get_inode(sb, dir, mode, dev)
 #define shmem_acct_size(flags, size)            0
 #define shmem_unacct_size(flags, size)          do {} while (0)
 #define SHMEM_MAX_BYTES                         MAX_LFS_FILESIZE
@@ -2655,7 +2646,7 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
         path.mnt = mntget(shm_mnt);
 
         error = -ENOSPC;
-        inode = shmem_get_inode(root->d_sb, S_IFREG | S_IRWXUGO, 0, flags);
+        inode = shmem_get_inode(root->d_sb, NULL, S_IFREG | S_IRWXUGO, 0, flags);
         if (!inode)
                 goto put_dentry;
 
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index a03fd74602b..5c9f25ba1c9 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -126,11 +126,6 @@ __setup("selinux=", selinux_enabled_setup);
 int selinux_enabled = 1;
 #endif
 
-/* Lists of inode and superblock security structures initialized
-   before the policy was loaded. */
-static LIST_HEAD(superblock_security_head);
-static DEFINE_SPINLOCK(sb_security_lock);
-
 static struct kmem_cache *sel_inode_cache;
 
 /**
@@ -266,7 +261,6 @@ static int superblock_alloc_security(struct super_block *sb)
                 return -ENOMEM;
 
         mutex_init(&sbsec->lock);
-        INIT_LIST_HEAD(&sbsec->list);
         INIT_LIST_HEAD(&sbsec->isec_head);
         spin_lock_init(&sbsec->isec_lock);
         sbsec->sb = sb;
@@ -281,12 +275,6 @@ static int superblock_alloc_security(struct super_block *sb)
 static void superblock_free_security(struct super_block *sb)
 {
         struct superblock_security_struct *sbsec = sb->s_security;
-
-        spin_lock(&sb_security_lock);
-        if (!list_empty(&sbsec->list))
-                list_del_init(&sbsec->list);
-        spin_unlock(&sb_security_lock);
-
         sb->s_security = NULL;
         kfree(sbsec);
 }
@@ -612,10 +600,6 @@ static int selinux_set_mnt_opts(struct super_block *sb,
                         /* Defer initialization until selinux_complete_init,
                            after the initial policy is loaded and the security
                            server is ready to handle calls. */
-                        spin_lock(&sb_security_lock);
-                        if (list_empty(&sbsec->list))
-                                list_add(&sbsec->list, &superblock_security_head);
-                        spin_unlock(&sb_security_lock);
                         goto out;
                 }
                 rc = -EINVAL;
@@ -806,16 +790,10 @@ static void selinux_sb_clone_mnt_opts(const struct super_block *oldsb,
 
         /*
          * if the parent was able to be mounted it clearly had no special lsm
-         * mount options.  thus we can safely put this sb on the list and deal
-         * with it later
+         * mount options.  thus we can safely deal with this superblock later
          */
-        if (!ss_initialized) {
-                spin_lock(&sb_security_lock);
-                if (list_empty(&newsbsec->list))
-                        list_add(&newsbsec->list, &superblock_security_head);
-                spin_unlock(&sb_security_lock);
+        if (!ss_initialized)
                 return;
-        }
 
         /* how can we clone if the old one wasn't set up?? */
         BUG_ON(!(oldsbsec->flags & SE_SBINITIALIZED));
@@ -5680,35 +5658,18 @@ static __init int selinux_init(void)
         return 0;
 }
 
+static void delayed_superblock_init(struct super_block *sb, void *unused)
+{
+        superblock_doinit(sb, NULL);
+}
+
 void selinux_complete_init(void)
 {
         printk(KERN_DEBUG "SELinux:  Completing initialization.\n");
 
         /* Set up any superblocks initialized prior to the policy load. */
         printk(KERN_DEBUG "SELinux:  Setting up existing superblocks.\n");
-        spin_lock(&sb_lock);
-        spin_lock(&sb_security_lock);
-next_sb:
-        if (!list_empty(&superblock_security_head)) {
-                struct superblock_security_struct *sbsec =
-                                list_entry(superblock_security_head.next,
-                                           struct superblock_security_struct,
-                                           list);
-                struct super_block *sb = sbsec->sb;
-                sb->s_count++;
-                spin_unlock(&sb_security_lock);
-                spin_unlock(&sb_lock);
-                down_read(&sb->s_umount);
-                if (sb->s_root)
-                        superblock_doinit(sb, NULL);
-                drop_super(sb);
-                spin_lock(&sb_lock);
-                spin_lock(&sb_security_lock);
-                list_del_init(&sbsec->list);
-                goto next_sb;
-        }
-        spin_unlock(&sb_security_lock);
-        spin_unlock(&sb_lock);
+        iterate_supers(delayed_superblock_init, NULL);
 }
 
 /* SELinux requires early initialization in order to label
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index c4e062336ef..26c7eee1c30 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -55,7 +55,6 @@ struct file_security_struct {
 
 struct superblock_security_struct {
         struct super_block *sb;         /* back pointer to sb object */
-        struct list_head list;          /* list of superblock_security_struct */
         u32 sid;                        /* SID of file system superblock */
         u32 def_sid;                    /* default SID for labeling */
         u32 mntpoint_sid;               /* SECURITY_FS_USE_MNTPOINT context for files */