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: (37 commits)
  fs: avoid I_NEW inodes
  Merge code for single and multiple-instance mounts
  Remove get_init_pts_sb()
  Move common mknod_ptmx() calls into caller
  Parse mount options just once and copy them to super block
  Unroll essentials of do_remount_sb() into devpts
  vfs: simple_set_mnt() should return void
  fs: move bdev code out of buffer.c
  constify dentry_operations: rest
  constify dentry_operations: configfs
  constify dentry_operations: sysfs
  constify dentry_operations: JFS
  constify dentry_operations: OCFS2
  constify dentry_operations: GFS2
  constify dentry_operations: FAT
  constify dentry_operations: FUSE
  constify dentry_operations: procfs
  constify dentry_operations: ecryptfs
  constify dentry_operations: CIFS
  constify dentry_operations: AFS
  ...

68 files changed, 386 insertions, 446 deletions

diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index c295ba7..f0c7de7 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -41,8 +41,8 @@ extern struct file_system_type v9fs_fs_type;
 extern const struct address_space_operations v9fs_addr_operations;
 extern const struct file_operations v9fs_file_operations;
 extern const struct file_operations v9fs_dir_operations;
-extern struct dentry_operations v9fs_dentry_operations;
-extern struct dentry_operations v9fs_cached_dentry_operations;
+extern const struct dentry_operations v9fs_dentry_operations;
+extern const struct dentry_operations v9fs_cached_dentry_operations;
 
 struct inode *v9fs_get_inode(struct super_block *sb, int mode);
 ino_t v9fs_qid2ino(struct p9_qid *qid);
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index 06dcc7c..d743252 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -104,12 +104,12 @@ void v9fs_dentry_release(struct dentry *dentry)
 	}
 }
 
-struct dentry_operations v9fs_cached_dentry_operations = {
+const struct dentry_operations v9fs_cached_dentry_operations = {
 	.d_delete = v9fs_cached_dentry_delete,
 	.d_release = v9fs_dentry_release,
 };
 
-struct dentry_operations v9fs_dentry_operations = {
+const struct dentry_operations v9fs_dentry_operations = {
 	.d_delete = v9fs_dentry_delete,
 	.d_release = v9fs_dentry_release,
 };
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 93212e4..5f8ab8a 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -168,8 +168,9 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
 	p9stat_free(st);
 	kfree(st);
 
-P9_DPRINTK(P9_DEBUG_VFS, " return simple set mount\n");
-	return simple_set_mnt(mnt, sb);
+P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
+	simple_set_mnt(mnt, sb);
+	return 0;
 
 release_sb:
 	if (sb) {
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
index 8311575..e0a85db 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -86,7 +86,7 @@ void __adfs_error(struct super_block *sb, const char *function,
 /* dir_*.c */
 extern const struct inode_operations adfs_dir_inode_operations;
 extern const struct file_operations adfs_dir_operations;
-extern struct dentry_operations adfs_dentry_operations;
+extern const struct dentry_operations adfs_dentry_operations;
 extern struct adfs_dir_ops adfs_f_dir_ops;
 extern struct adfs_dir_ops adfs_fplus_dir_ops;
 
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index 85a30e9..e867ccf 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -263,7 +263,7 @@ adfs_compare(struct dentry *parent, struct qstr *entry, struct qstr *name)
 	return 0;
 }
 
-struct dentry_operations adfs_dentry_operations = {
+const struct dentry_operations adfs_dentry_operations = {
 	.d_hash		= adfs_hash,
 	.d_compare	= adfs_compare,
 };
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index e9ec915..1a2d5e3 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -199,8 +199,7 @@ extern const struct address_space_operations	 affs_symlink_aops;
 extern const struct address_space_operations	 affs_aops;
 extern const struct address_space_operations	 affs_aops_ofs;
 
-extern struct dentry_operations	 affs_dentry_operations;
-extern struct dentry_operations	 affs_dentry_operations_intl;
+extern const struct dentry_operations	 affs_dentry_operations;
 
 static inline void
 affs_set_blocksize(struct super_block *sb, int size)
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 8055730..7d0f0a3 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -179,14 +179,18 @@ affs_remove_link(struct dentry *dentry)
 		affs_lock_dir(dir);
 		affs_fix_dcache(dentry, link_ino);
 		retval = affs_remove_hash(dir, link_bh);
-		if (retval)
+		if (retval) {
+			affs_unlock_dir(dir);
 			goto done;
+		}
 		mark_buffer_dirty_inode(link_bh, inode);
 
 		memcpy(AFFS_TAIL(sb, bh)->name, AFFS_TAIL(sb, link_bh)->name, 32);
 		retval = affs_insert_hash(dir, bh);
-		if (retval)
+		if (retval) {
+			affs_unlock_dir(dir);
 			goto done;
+		}
 		mark_buffer_dirty_inode(bh, inode);
 
 		affs_unlock_dir(dir);
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index cfcf1b6..960d336 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -19,12 +19,12 @@ static int	 affs_intl_toupper(int ch);
 static int	 affs_intl_hash_dentry(struct dentry *, struct qstr *);
 static int       affs_intl_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
 
-struct dentry_operations affs_dentry_operations = {
+const struct dentry_operations affs_dentry_operations = {
 	.d_hash		= affs_hash_dentry,
 	.d_compare	= affs_compare_dentry,
 };
 
-static struct dentry_operations affs_intl_dentry_operations = {
+static const struct dentry_operations affs_intl_dentry_operations = {
 	.d_hash		= affs_intl_hash_dentry,
 	.d_compare	= affs_intl_compare_dentry,
 };
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 99cf390..9bd7577 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -62,7 +62,7 @@ const struct inode_operations afs_dir_inode_operations = {
 	.setattr	= afs_setattr,
 };
 
-static struct dentry_operations afs_fs_dentry_operations = {
+static const struct dentry_operations afs_fs_dentry_operations = {
 	.d_revalidate	= afs_d_revalidate,
 	.d_delete	= afs_d_delete,
 	.d_release	= afs_d_release,
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 3bbdb9d..1dd96d4 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -48,7 +48,7 @@ static struct file_system_type anon_inode_fs_type = {
 	.get_sb		= anon_inodefs_get_sb,
 	.kill_sb	= kill_anon_super,
 };
-static struct dentry_operations anon_inodefs_dentry_operations = {
+static const struct dentry_operations anon_inodefs_dentry_operations = {
 	.d_delete	= anon_inodefs_delete_dentry,
 };
 
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index 8aacade..4a1401c 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -192,7 +192,7 @@ static int autofs_revalidate(struct dentry * dentry, struct nameidata *nd)
 	return 1;
 }
 
-static struct dentry_operations autofs_dentry_operations = {
+static const struct dentry_operations autofs_dentry_operations = {
 	.d_revalidate	= autofs_revalidate,
 };
 
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 716e12b..69c8142 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -310,7 +310,7 @@ static struct autofs_info *autofs4_mkroot(struct autofs_sb_info *sbi)
 	return ino;
 }
 
-static struct dentry_operations autofs4_sb_dentry_operations = {
+static const struct dentry_operations autofs4_sb_dentry_operations = {
 	.d_release      = autofs4_dentry_release,
 };
 
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 2a41c2a..74b1469 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -349,13 +349,13 @@ void autofs4_dentry_release(struct dentry *de)
 }
 
 /* For dentries of directories in the root dir */
-static struct dentry_operations autofs4_root_dentry_operations = {
+static const struct dentry_operations autofs4_root_dentry_operations = {
 	.d_revalidate	= autofs4_revalidate,
 	.d_release	= autofs4_dentry_release,
 };
 
 /* For other dentries */
-static struct dentry_operations autofs4_dentry_operations = {
+static const struct dentry_operations autofs4_dentry_operations = {
 	.d_revalidate	= autofs4_revalidate,
 	.d_release	= autofs4_dentry_release,
 };
diff --git a/fs/block_dev.c b/fs/block_dev.c
index b3c1eff..8c3c689 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/blkpg.h>
 #include <linux/buffer_head.h>
+#include <linux/pagevec.h>
 #include <linux/writeback.h>
 #include <linux/mpage.h>
 #include <linux/mount.h>
@@ -174,6 +175,151 @@ blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
 				iov, offset, nr_segs, blkdev_get_blocks, NULL);
 }
 
+/*
+ * Write out and wait upon all the dirty data associated with a block
+ * device via its mapping.  Does not take the superblock lock.
+ */
+int sync_blockdev(struct block_device *bdev)
+{
+	int ret = 0;
+
+	if (bdev)
+		ret = filemap_write_and_wait(bdev->bd_inode->i_mapping);
+	return ret;
+}
+EXPORT_SYMBOL(sync_blockdev);
+
+/*
+ * Write out and wait upon all dirty data associated with this
+ * device.   Filesystem data as well as the underlying block
+ * device.  Takes the superblock lock.
+ */
+int fsync_bdev(struct block_device *bdev)
+{
+	struct super_block *sb = get_super(bdev);
+	if (sb) {
+		int res = fsync_super(sb);
+		drop_super(sb);
+		return res;
+	}
+	return sync_blockdev(bdev);
+}
+
+/**
+ * freeze_bdev  --  lock a filesystem and force it into a consistent state
+ * @bdev:	blockdevice to lock
+ *
+ * This takes the block device bd_mount_sem to make sure no new mounts
+ * happen on bdev until thaw_bdev() is called.
+ * If a superblock is found on this device, we take the s_umount semaphore
+ * on it to make sure nobody unmounts until the snapshot creation is done.
+ * The reference counter (bd_fsfreeze_count) guarantees that only the last
+ * unfreeze process can unfreeze the frozen filesystem actually when multiple
+ * freeze requests arrive simultaneously. It counts up in freeze_bdev() and
+ * count down in thaw_bdev(). When it becomes 0, thaw_bdev() will unfreeze
+ * actually.
+ */
+struct super_block *freeze_bdev(struct block_device *bdev)
+{
+	struct super_block *sb;
+	int error = 0;
+
+	mutex_lock(&bdev->bd_fsfreeze_mutex);
+	if (bdev->bd_fsfreeze_count > 0) {
+		bdev->bd_fsfreeze_count++;
+		sb = get_super(bdev);
+		mutex_unlock(&bdev->bd_fsfreeze_mutex);
+		return sb;
+	}
+	bdev->bd_fsfreeze_count++;
+
+	down(&bdev->bd_mount_sem);
+	sb = get_super(bdev);
+	if (sb && !(sb->s_flags & MS_RDONLY)) {
+		sb->s_frozen = SB_FREEZE_WRITE;
+		smp_wmb();
+
+		__fsync_super(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;
+				drop_super(sb);
+				up(&bdev->bd_mount_sem);
+				bdev->bd_fsfreeze_count--;
+				mutex_unlock(&bdev->bd_fsfreeze_mutex);
+				return ERR_PTR(error);
+			}
+		}
+	}
+
+	sync_blockdev(bdev);
+	mutex_unlock(&bdev->bd_fsfreeze_mutex);
+
+	return sb;	/* thaw_bdev releases s->s_umount and bd_mount_sem */
+}
+EXPORT_SYMBOL(freeze_bdev);
+
+/**
+ * thaw_bdev  -- unlock filesystem
+ * @bdev:	blockdevice to unlock
+ * @sb:		associated superblock
+ *
+ * Unlocks the filesystem and marks it writeable again after freeze_bdev().
+ */
+int thaw_bdev(struct block_device *bdev, struct super_block *sb)
+{
+	int error = 0;
+
+	mutex_lock(&bdev->bd_fsfreeze_mutex);
+	if (!bdev->bd_fsfreeze_count) {
+		mutex_unlock(&bdev->bd_fsfreeze_mutex);
+		return -EINVAL;
+	}
+
+	bdev->bd_fsfreeze_count--;
+	if (bdev->bd_fsfreeze_count > 0) {
+		if (sb)
+			drop_super(sb);
+		mutex_unlock(&bdev->bd_fsfreeze_mutex);
+		return 0;
+	}
+
+	if (sb) {
+		BUG_ON(sb->s_bdev != bdev);
+		if (!(sb->s_flags & MS_RDONLY)) {
+			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;
+				}
+			}
+			sb->s_frozen = SB_UNFROZEN;
+			smp_wmb();
+			wake_up(&sb->s_wait_unfrozen);
+		}
+		drop_super(sb);
+	}
+
+	up(&bdev->bd_mount_sem);
+	mutex_unlock(&bdev->bd_fsfreeze_mutex);
+	return 0;
+}
+EXPORT_SYMBOL(thaw_bdev);
+
 static int blkdev_writepage(struct page *page, struct writeback_control *wbc)
 {
 	return block_write_full_page(page, blkdev_get_block, wbc);
diff --git a/fs/buffer.c b/fs/buffer.c
index 891e1c7..a2fd743 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -166,151 +166,6 @@ void end_buffer_write_sync(struct buffer_head *bh, int uptodate)
 }
 
 /*
- * Write out and wait upon all the dirty data associated with a block
- * device via its mapping.  Does not take the superblock lock.
- */
-int sync_blockdev(struct block_device *bdev)
-{
-	int ret = 0;
-
-	if (bdev)
-		ret = filemap_write_and_wait(bdev->bd_inode->i_mapping);
-	return ret;
-}
-EXPORT_SYMBOL(sync_blockdev);
-
-/*
- * Write out and wait upon all dirty data associated with this
- * device.   Filesystem data as well as the underlying block
- * device.  Takes the superblock lock.
- */
-int fsync_bdev(struct block_device *bdev)
-{
-	struct super_block *sb = get_super(bdev);
-	if (sb) {
-		int res = fsync_super(sb);
-		drop_super(sb);
-		return res;
-	}
-	return sync_blockdev(bdev);
-}
-
-/**
- * freeze_bdev  --  lock a filesystem and force it into a consistent state
- * @bdev:	blockdevice to lock
- *
- * This takes the block device bd_mount_sem to make sure no new mounts
- * happen on bdev until thaw_bdev() is called.
- * If a superblock is found on this device, we take the s_umount semaphore
- * on it to make sure nobody unmounts until the snapshot creation is done.
- * The reference counter (bd_fsfreeze_count) guarantees that only the last
- * unfreeze process can unfreeze the frozen filesystem actually when multiple
- * freeze requests arrive simultaneously. It counts up in freeze_bdev() and
- * count down in thaw_bdev(). When it becomes 0, thaw_bdev() will unfreeze
- * actually.
- */
-struct super_block *freeze_bdev(struct block_device *bdev)
-{
-	struct super_block *sb;
-	int error = 0;
-
-	mutex_lock(&bdev->bd_fsfreeze_mutex);
-	if (bdev->bd_fsfreeze_count > 0) {
-		bdev->bd_fsfreeze_count++;
-		sb = get_super(bdev);
-		mutex_unlock(&bdev->bd_fsfreeze_mutex);
-		return sb;
-	}
-	bdev->bd_fsfreeze_count++;
-
-	down(&bdev->bd_mount_sem);
-	sb = get_super(bdev);
-	if (sb && !(sb->s_flags & MS_RDONLY)) {
-		sb->s_frozen = SB_FREEZE_WRITE;
-		smp_wmb();
-
-		__fsync_super(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;
-				drop_super(sb);
-				up(&bdev->bd_mount_sem);
-				bdev->bd_fsfreeze_count--;
-				mutex_unlock(&bdev->bd_fsfreeze_mutex);
-				return ERR_PTR(error);
-			}
-		}
-	}
-
-	sync_blockdev(bdev);
-	mutex_unlock(&bdev->bd_fsfreeze_mutex);
-
-	return sb;	/* thaw_bdev releases s->s_umount and bd_mount_sem */
-}
-EXPORT_SYMBOL(freeze_bdev);
-
-/**
- * thaw_bdev  -- unlock filesystem
- * @bdev:	blockdevice to unlock
- * @sb:		associated superblock
- *
- * Unlocks the filesystem and marks it writeable again after freeze_bdev().
- */
-int thaw_bdev(struct block_device *bdev, struct super_block *sb)
-{
-	int error = 0;
-
-	mutex_lock(&bdev->bd_fsfreeze_mutex);
-	if (!bdev->bd_fsfreeze_count) {
-		mutex_unlock(&bdev->bd_fsfreeze_mutex);
-		return -EINVAL;
-	}
-
-	bdev->bd_fsfreeze_count--;
-	if (bdev->bd_fsfreeze_count > 0) {
-		if (sb)
-			drop_super(sb);
-		mutex_unlock(&bdev->bd_fsfreeze_mutex);
-		return 0;
-	}
-
-	if (sb) {
-		BUG_ON(sb->s_bdev != bdev);
-		if (!(sb->s_flags & MS_RDONLY)) {
-			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;
-				}
-			}
-			sb->s_frozen = SB_UNFROZEN;
-			smp_wmb();
-			wake_up(&sb->s_wait_unfrozen);
-		}
-		drop_super(sb);
-	}
-
-	up(&bdev->bd_mount_sem);
-	mutex_unlock(&bdev->bd_fsfreeze_mutex);
-	return 0;
-}
-EXPORT_SYMBOL(thaw_bdev);
-
-/*
  * Various filesystems appear to want __find_get_block to be non-blocking.
  * But it's the page lock which protects the buffers.  To get around this,
  * we get exclusion from try_to_free_buffers with the blockdev mapping's
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 13ea532..38491fd 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -606,7 +606,8 @@ cifs_get_sb(struct file_system_type *fs_type,
 		return rc;
 	}
 	sb->s_flags |= MS_ACTIVE;
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	return 0;
 }
 
 static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 2b1d28a..77e190d 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -78,8 +78,8 @@ extern int cifs_dir_open(struct inode *inode, struct file *file);
 extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
 
 /* Functions related to dir entries */
-extern struct dentry_operations cifs_dentry_ops;
-extern struct dentry_operations cifs_ci_dentry_ops;
+extern const struct dentry_operations cifs_dentry_ops;
+extern const struct dentry_operations cifs_ci_dentry_ops;
 
 /* Functions related to symlinks */
 extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index f9b6f68..2f35cccf 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -701,7 +701,7 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
 	return rc;
 }     */
 
-struct dentry_operations cifs_dentry_ops = {
+const struct dentry_operations cifs_dentry_ops = {
 	.d_revalidate = cifs_d_revalidate,
 /* d_delete:       cifs_d_delete,      */ /* not needed except for debugging */
 };
@@ -739,7 +739,7 @@ static int cifs_ci_compare(struct dentry *dentry, struct qstr *a,
 	return 1;
 }
 
-struct dentry_operations cifs_ci_dentry_ops = {
+const struct dentry_operations cifs_ci_dentry_ops = {
 	.d_revalidate = cifs_d_revalidate,
 	.d_hash = cifs_ci_hash,
 	.d_compare = cifs_ci_compare,
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 75b1fa9..4bb9d0a 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -59,7 +59,7 @@ static int coda_return_EIO(void)
 }
 #define CODA_EIO_ERROR ((void *) (coda_return_EIO))
 
-static struct dentry_operations coda_dentry_operations =
+static const struct dentry_operations coda_dentry_operations =
 {
 	.d_revalidate	= coda_dentry_revalidate,
 	.d_delete	= coda_dentry_delete,
diff --git a/fs/compat.c b/fs/compat.c
index 0949b43..5e374aa 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -378,6 +378,34 @@ out:
 	return error;
 }
 
+/*
+ * This is a copy of sys_ustat, just dealing with a structure layout.
+ * Given how simple this syscall is that apporach is more maintainable
+ * than the various conversion hacks.
+ */
+asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u)
+{
+	struct super_block *sb;
+	struct compat_ustat tmp;
+	struct kstatfs sbuf;
+	int err;
+
+	sb = user_get_super(new_decode_dev(dev));
+	if (!sb)
+		return -EINVAL;
+	err = vfs_statfs(sb->s_root, &sbuf);
+	drop_super(sb);
+	if (err)
+		return err;
+
+	memset(&tmp, 0, sizeof(struct compat_ustat));
+	tmp.f_tfree = sbuf.f_bfree;
+	tmp.f_tinode = sbuf.f_ffree;
+	if (copy_to_user(u, &tmp, sizeof(struct compat_ustat)))
+		return -EFAULT;
+	return 0;
+}
+
 static int get_compat_flock(struct flock *kfl, struct compat_flock __user *ufl)
 {
 	if (!access_ok(VERIFY_READ, ufl, sizeof(*ufl)) ||
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 8e93341..05373db 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -72,7 +72,7 @@ static int configfs_d_delete(struct dentry *dentry)
 	return 1;
 }
 
-static struct dentry_operations configfs_dentry_ops = {
+static const struct dentry_operations configfs_dentry_ops = {
 	.d_iput		= configfs_d_iput,
 	/* simple_delete_dentry() isn't exported */
 	.d_delete	= configfs_d_delete,
diff --git a/fs/dcache.c b/fs/dcache.c
index 07e2d4a..90bbd7e 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1247,15 +1247,18 @@ struct dentry *d_add_ci(struct dentry *dentry, struct inode *inode,
 	struct dentry *found;
 	struct dentry *new;
 
-	/* Does a dentry matching the name exist already? */
+	/*
+	 * First check if a dentry matching the name already exists,
+	 * if not go ahead and create it now.
+	 */
 	found = d_hash_and_lookup(dentry->d_parent, name);
-	/* If not, create it now and return */
 	if (!found) {
 		new = d_alloc(dentry->d_parent, name);
 		if (!new) {
 			error = -ENOMEM;
 			goto err_out;
 		}
+
 		found = d_splice_alias(inode, new);
 		if (found) {
 			dput(new);
@@ -1263,61 +1266,46 @@ struct dentry *d_add_ci(struct dentry *dentry, struct inode *inode,
 		}
 		return new;
 	}
-	/* Matching dentry exists, check if it is negative. */
+
+	/*
+	 * If a matching dentry exists, and it's not negative use it.
+	 *
+	 * Decrement the reference count to balance the iget() done
+	 * earlier on.
+	 */
 	if (found->d_inode) {
 		if (unlikely(found->d_inode != inode)) {
 			/* This can't happen because bad inodes are unhashed. */
 			BUG_ON(!is_bad_inode(inode));
 			BUG_ON(!is_bad_inode(found->d_inode));
 		}
-		/*
-		 * Already have the inode and the dentry attached, decrement
-		 * the reference count to balance the iget() done
-		 * earlier on.  We found the dentry using d_lookup() so it
-		 * cannot be disconnected and thus we do not need to worry
-		 * about any NFS/disconnectedness issues here.
-		 */
 		iput(inode);
 		return found;
 	}
+
 	/*
 	 * Negative dentry: instantiate it unless the inode is a directory and
-	 * has a 'disconnected' dentry (i.e. IS_ROOT and DCACHE_DISCONNECTED),
-	 * in which case d_move() that in place of the found dentry.
+	 * already has a dentry.
 	 */
-	if (!S_ISDIR(inode->i_mode)) {
-		/* Not a directory; everything is easy. */
-		d_instantiate(found, inode);
-		return found;
-	}
 	spin_lock(&dcache_lock);
-	if (list_empty(&inode->i_dentry)) {
-		/*
-		 * Directory without a 'disconnected' dentry; we need to do
-		 * d_instantiate() by hand because it takes dcache_lock which
-		 * we already hold.
-		 */
+	if (!S_ISDIR(inode->i_mode) || list_empty(&inode->i_dentry)) {
 		__d_instantiate(found, inode);
 		spin_unlock(&dcache_lock);
 		security_d_instantiate(found, inode);
 		return found;
 	}
+
 	/*
-	 * Directory with a 'disconnected' dentry; get a reference to the
-	 * 'disconnected' dentry.
+	 * In case a directory already has a (disconnected) entry grab a
+	 * reference to it, move it in place and use it.
 	 */
 	new = list_entry(inode->i_dentry.next, struct dentry, d_alias);
 	dget_locked(new);
 	spin_unlock(&dcache_lock);
-	/* Do security vodoo. */
 	security_d_instantiate(found, inode);
-	/* Move new in place of found. */
 	d_move(new, found);
-	/* Balance the iget() we did above. */
 	iput(inode);
-	/* Throw away found. */
 	dput(found);
-	/* Use new as the actual dentry. */
 	return new;
 
 err_out:
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index bff4052..63a4a59 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -322,177 +322,81 @@ static int compare_init_pts_sb(struct super_block *s, void *p)
 }
 
 /*
- * Safely parse the mount options in @data and update @opts.
+ * devpts_get_sb()
  *
- * devpts ends up parsing options two times during mount, due to the
- * two modes of operation it supports. The first parse occurs in
- * devpts_get_sb() when determining the mode (single-instance or
- * multi-instance mode). The second parse happens in devpts_remount()
- * or new_pts_mount() depending on the mode.
+ *     If the '-o newinstance' mount option was specified, mount a new
+ *     (private) instance of devpts.  PTYs created in this instance are
+ *     independent of the PTYs in other devpts instances.
  *
- * Parsing of options modifies the @data making subsequent parsing
- * incorrect. So make a local copy of @data and parse it.
+ *     If the '-o newinstance' option was not specified, mount/remount the
+ *     initial kernel mount of devpts.  This type of mount gives the
+ *     legacy, single-instance semantics.
  *
- * Return: 0 On success, -errno on error
- */
-static int safe_parse_mount_options(void *data, struct pts_mount_opts *opts)
-{
-	int rc;
-	void *datacp;
-
-	if (!data)
-		return 0;
-
-	/* Use kstrdup() ?  */
-	datacp = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!datacp)
-		return -ENOMEM;
-
-	memcpy(datacp, data, PAGE_SIZE);
-	rc = parse_mount_options((char *)datacp, PARSE_MOUNT, opts);
-	kfree(datacp);
-
-	return rc;
-}
-
-/*
- * Mount a new (private) instance of devpts.  PTYs created in this
- * instance are independent of the PTYs in other devpts instances.
- */
-static int new_pts_mount(struct file_system_type *fs_type, int flags,
-		void *data, struct vfsmount *mnt)
-{
-	int err;
-	struct pts_fs_info *fsi;
-	struct pts_mount_opts *opts;
-
-	err = get_sb_nodev(fs_type, flags, data, devpts_fill_super, mnt);
-	if (err)
-		return err;
-
-	fsi = DEVPTS_SB(mnt->mnt_sb);
-	opts = &fsi->mount_opts;
-
-	err = parse_mount_options(data, PARSE_MOUNT, opts);
-	if (err)
-		goto fail;
-
-	err = mknod_ptmx(mnt->mnt_sb);
-	if (err)
-		goto fail;
-
-	return 0;
-
-fail:
-	dput(mnt->mnt_sb->s_root);
-	deactivate_super(mnt->mnt_sb);
-	return err;
-}
-
-/*
- * Check if 'newinstance' mount option was specified in @data.
+ *     The 'newinstance' option is needed to support multiple namespace
+ *     semantics in devpts while preserving backward compatibility of the
+ *     current 'single-namespace' semantics. i.e all mounts of devpts
+ *     without the 'newinstance' mount option should bind to the initial
+ *     kernel mount, like get_sb_single().
  *
- * Return: -errno  	on error (eg: invalid mount options specified)
- * 	 : 1 		if 'newinstance' mount option was specified
- * 	 : 0 		if 'newinstance' mount option was NOT specified
- */
-static int is_new_instance_mount(void *data)
-{
-	int rc;
-	struct pts_mount_opts opts;
-
-	if (!data)
-		return 0;
-
-	rc = safe_parse_mount_options(data, &opts);
-	if (!rc)
-		rc = opts.newinstance;
-
-	return rc;
-}
-
-/*
- * get_init_pts_sb()
- *
- *     This interface is needed to support multiple namespace semantics in
- *     devpts while preserving backward compatibility of the current 'single-
- *     namespace' semantics. i.e all mounts of devpts without the 'newinstance'
- *     mount option should bind to the initial kernel mount, like
- *     get_sb_single().
+ *     Mounts with 'newinstance' option create a new, private namespace.
  *
- *     Mounts with 'newinstance' option create a new private namespace.
+ *     NOTE:
  *
- *     But for single-mount semantics, devpts cannot use get_sb_single(),
+ *     For single-mount semantics, devpts cannot use get_sb_single(),
  *     because get_sb_single()/sget() find and use the super-block from
  *     the most recent mount of devpts. But that recent mount may be a
  *     'newinstance' mount and get_sb_single() would pick the newinstance
  *     super-block instead of the initial super-block.
- *
- *     This interface is identical to get_sb_single() except that it
- *     consistently selects the 'single-namespace' superblock even in the
- *     presence of the private namespace (i.e 'newinstance') super-blocks.
  */
-static int get_init_pts_sb(struct file_system_type *fs_type, int flags,
-		void *data, struct vfsmount *mnt)
+static int devpts_get_sb(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
 {
-	struct super_block *s;
 	int error;
+	struct pts_mount_opts opts;
+	struct super_block *s;
+
+	memset(&opts, 0, sizeof(opts));
+	if (data) {
+		error = parse_mount_options(data, PARSE_MOUNT, &opts);
+		if (error)
+			return error;
+	}
+
+	if (opts.newinstance)
+		s = sget(fs_type, NULL, set_anon_super, NULL);
+	else
+		s = sget(fs_type, compare_init_pts_sb, set_anon_super, NULL);
 
-	s = sget(fs_type, compare_init_pts_sb, set_anon_super, NULL);
 	if (IS_ERR(s))
 		return PTR_ERR(s);
 
 	if (!s->s_root) {
 		s->s_flags = flags;
 		error = devpts_fill_super(s, data, flags & MS_SILENT ? 1 : 0);
-		if (error) {
-			up_write(&s->s_umount);
-			deactivate_super(s);
-			return error;
-		}
+		if (error)
+			goto out_undo_sget;
 		s->s_flags |= MS_ACTIVE;
 	}
-	do_remount_sb(s, flags, data, 0);
-	return simple_set_mnt(mnt, s);
-}
 
-/*
- * Mount or remount the initial kernel mount of devpts. This type of
- * mount maintains the legacy, single-instance semantics, while the
- * kernel still allows multiple-instances.
- */
-static int init_pts_mount(struct file_system_type *fs_type, int flags,
-		void *data, struct vfsmount *mnt)
-{
-	int err;
+	simple_set_mnt(mnt, s);
 
-	err = get_init_pts_sb(fs_type, flags, data, mnt);
-	if (err)
-		return err;
+	memcpy(&(DEVPTS_SB(s))->mount_opts, &opts, sizeof(opts));
 
-	err = mknod_ptmx(mnt->mnt_sb);
-	if (err) {
-		dput(mnt->mnt_sb->s_root);
-		deactivate_super(mnt->mnt_sb);
-	}
+	error = mknod_ptmx(s);
+	if (error)
+		goto out_dput;
 
-	return err;
-}
-
-static int devpts_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
-{
-	int new;
-
-	new = is_new_instance_mount(data);
-	if (new < 0)
-		return new;
+	return 0;
 
-	if (new)
-		return new_pts_mount(fs_type, flags, data, mnt);
+out_dput:
+	dput(s->s_root);
 
-	return init_pts_mount(fs_type, flags, data, mnt);
+out_undo_sget:
+	up_write(&s->s_umount);
+	deactivate_super(s);
+	return error;
 }
+
 #else
 /*
  * This supports only the legacy single-instance semantics (no
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 3e5637f..44d725f 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -18,7 +18,7 @@ static void drop_pagecache_sb(struct super_block *sb)
 
 	spin_lock(&inode_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
-		if (inode->i_state & (I_FREEING|I_WILL_FREE))
+		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
 			continue;
 		if (inode->i_mapping->nrpages == 0)
 			continue;
diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 5e59658..2dda5ad 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -89,7 +89,7 @@ static void ecryptfs_d_release(struct dentry *dentry)
 	return;
 }
 
-struct dentry_operations ecryptfs_dops = {
+const struct dentry_operations ecryptfs_dops = {
 	.d_revalidate = ecryptfs_d_revalidate,
 	.d_release = ecryptfs_d_release,
 };
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index ac749d4..064c582 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -580,7 +580,7 @@ extern const struct inode_operations ecryptfs_main_iops;
 extern const struct inode_operations ecryptfs_dir_iops;
 extern const struct inode_operations ecryptfs_symlink_iops;
 extern const struct super_operations ecryptfs_sops;
-extern struct dentry_operations ecryptfs_dops;
+extern const struct dentry_operations ecryptfs_dops;
 extern struct address_space_operations ecryptfs_aops;
 extern int ecryptfs_verbosity;
 extern unsigned int ecryptfs_message_buf_len;
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index 7ba03a4..da3f361 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -188,7 +188,7 @@ old_compare:
 	goto out;
 }
 
-static struct dentry_operations msdos_dentry_operations = {
+static const struct dentry_operations msdos_dentry_operations = {
 	.d_hash		= msdos_hash,
 	.d_compare	= msdos_cmp,
 };
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 8ae32e3..a0e00e3 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -166,13 +166,13 @@ static int vfat_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b)
 	return 1;
 }
 
-static struct dentry_operations vfat_ci_dentry_ops = {
+static const struct dentry_operations vfat_ci_dentry_ops = {
 	.d_revalidate	= vfat_revalidate_ci,
 	.d_hash		= vfat_hashi,
 	.d_compare	= vfat_cmpi,
 };
 
-static struct dentry_operations vfat_dentry_ops = {
+static const struct dentry_operations vfat_dentry_ops = {
 	.d_revalidate	= vfat_revalidate,
 	.d_hash		= vfat_hash,
 	.d_compare	= vfat_cmp,
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index fdff346..06da052 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -224,7 +224,7 @@ static int invalid_nodeid(u64 nodeid)
 	return !nodeid || nodeid == FUSE_ROOT_ID;
 }
 
-struct dentry_operations fuse_dentry_operations = {
+const struct dentry_operations fuse_dentry_operations = {
 	.d_revalidate	= fuse_dentry_revalidate,
 };
 
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 5e64b81..6fc5aed 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -493,7 +493,7 @@ static inline u64 get_node_id(struct inode *inode)
 /** Device operations */
 extern const struct file_operations fuse_dev_operations;
 
-extern struct dentry_operations fuse_dentry_operations;
+extern const struct dentry_operations fuse_dentry_operations;
 
 /**
  * Get a filled in inode
diff --git a/fs/gfs2/ops_dentry.c b/fs/gfs2/ops_dentry.c
index 5eb57b0..022c66c 100644
--- a/fs/gfs2/ops_dentry.c
+++ b/fs/gfs2/ops_dentry.c
@@ -107,7 +107,7 @@ static int gfs2_dhash(struct dentry *dentry, struct qstr *str)
 	return 0;
 }
 
-struct dentry_operations gfs2_dops = {
+const struct dentry_operations gfs2_dops = {
 	.d_revalidate = gfs2_drevalidate,
 	.d_hash = gfs2_dhash,
 };
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index 91abdbe..b56413e 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -49,7 +49,7 @@ extern struct file_system_type gfs2_fs_type;
 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 struct dentry_operations gfs2_dops;
+extern const struct dentry_operations gfs2_dops;
 
 #endif /* __SUPER_DOT_H__ */
 
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 9955232..052387e 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -213,7 +213,7 @@ extern void hfs_mdb_put(struct super_block *);
 extern int hfs_part_find(struct super_block *, sector_t *, sector_t *);
 
 /* string.c */
-extern struct dentry_operations hfs_dentry_operations;
+extern const struct dentry_operations hfs_dentry_operations;
 
 extern int hfs_hash_dentry(struct dentry *, struct qstr *);
 extern int hfs_strcmp(const unsigned char *, unsigned int,
diff --git a/fs/hfs/sysdep.c b/fs/hfs/sysdep.c
index 5bf89ec..7478f5c 100644
--- a/fs/hfs/sysdep.c
+++ b/fs/hfs/sysdep.c
@@ -31,7 +31,7 @@ static int hfs_revalidate_dentry(struct dentry *dentry, struct nameidata *nd)
 	return 1;
 }
 
-struct dentry_operations hfs_dentry_operations =
+const struct dentry_operations hfs_dentry_operations =
 {
 	.d_revalidate	= hfs_revalidate_dentry,
 	.d_hash		= hfs_hash_dentry,
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index f027a90..5c10d80 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -327,7 +327,7 @@ void hfsplus_file_truncate(struct inode *);
 /* inode.c */
 extern const struct address_space_operations hfsplus_aops;
 extern const struct address_space_operations hfsplus_btree_aops;
-extern struct dentry_operations hfsplus_dentry_operations;
+extern const struct dentry_operations hfsplus_dentry_operations;
 
 void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
 void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index f105ee9..1bcf597 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -137,7 +137,7 @@ const struct address_space_operations hfsplus_aops = {
 	.writepages	= hfsplus_writepages,
 };
 
-struct dentry_operations hfsplus_dentry_operations = {
+const struct dentry_operations hfsplus_dentry_operations = {
 	.d_hash       = hfsplus_hash_dentry,
 	.d_compare    = hfsplus_compare_dentry,
 };
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 5c538e0..fe02ad4 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -31,12 +31,12 @@ static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode)
 
 #define FILE_HOSTFS_I(file) HOSTFS_I((file)->f_path.dentry->d_inode)
 
-int hostfs_d_delete(struct dentry *dentry)
+static int hostfs_d_delete(struct dentry *dentry)
 {
 	return 1;
 }
 
-struct dentry_operations hostfs_dentry_ops = {
+static const struct dentry_operations hostfs_dentry_ops = {
 	.d_delete		= hostfs_d_delete,
 };
 
diff --git a/fs/hpfs/dentry.c b/fs/hpfs/dentry.c
index 0831912..940d6d1 100644
--- a/fs/hpfs/dentry.c
+++ b/fs/hpfs/dentry.c
@@ -49,7 +49,7 @@ static int hpfs_compare_dentry(struct dentry *dentry, struct qstr *a, struct qst
 	return 0;
 }
 
-static struct dentry_operations hpfs_dentry_operations = {
+static const struct dentry_operations hpfs_dentry_operations = {
 	.d_hash		= hpfs_hash_dentry,
 	.d_compare	= hpfs_compare_dentry,
 };
diff --git a/fs/inode.c b/fs/inode.c
index 29df4a2..d06d6d2 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -366,6 +366,8 @@ static int invalidate_list(struct list_head *head, struct list_head *dispose)
 		if (tmp == head)
 			break;
 		inode = list_entry(tmp, struct inode, i_sb_list);
+		if (inode->i_state & I_NEW)
+			continue;
 		invalidate_inode_buffers(inode);
 		if (!atomic_read(&inode->i_count)) {
 			list_move(&inode->i_list, dispose);
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 6147ec3..13d2edd 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -114,7 +114,7 @@ static const struct super_operations isofs_sops = {
 };
 
 
-static struct dentry_operations isofs_dentry_ops[] = {
+static const struct dentry_operations isofs_dentry_ops[] = {
 	{
 		.d_hash		= isofs_hash,
 		.d_compare	= isofs_dentry_cmp,
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index adb2faf..1eff7db 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -47,5 +47,5 @@ extern const struct file_operations jfs_dir_operations;
 extern const struct inode_operations jfs_file_inode_operations;
 extern const struct file_operations jfs_file_operations;
 extern const struct inode_operations jfs_symlink_inode_operations;
-extern struct dentry_operations jfs_ci_dentry_operations;
+extern const struct dentry_operations jfs_ci_dentry_operations;
 #endif				/* _H_JFS_INODE */
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 9feaa04..514ee2e 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -35,7 +35,7 @@
 /*
  * forward references
  */
-struct dentry_operations jfs_ci_dentry_operations;
+const struct dentry_operations jfs_ci_dentry_operations;
 
 static s64 commitZeroLink(tid_t, struct inode *);
 
@@ -1595,7 +1595,7 @@ out:
 	return result;
 }
 
-struct dentry_operations jfs_ci_dentry_operations =
+const struct dentry_operations jfs_ci_dentry_operations =
 {
 	.d_hash = jfs_ci_hash,
 	.d_compare = jfs_ci_compare,
diff --git a/fs/libfs.c b/fs/libfs.c
index 49b4409..4910a36 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -44,7 +44,7 @@ static int simple_delete_dentry(struct dentry *dentry)
  */
 struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
-	static struct dentry_operations simple_dentry_operations = {
+	static const struct dentry_operations simple_dentry_operations = {
 		.d_delete = simple_delete_dentry,
 	};
 
@@ -242,7 +242,8 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name,
 	d_instantiate(dentry, root);
 	s->s_root = dentry;
 	s->s_flags |= MS_ACTIVE;
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 
 Enomem:
 	up_write(&s->s_umount);
diff --git a/fs/namei.c b/fs/namei.c
index 1928197..d040ce1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1489,24 +1489,22 @@ int may_open(struct path *path, int acc_mode, int flag)
 	if (!inode)
 		return -ENOENT;
 
-	if (S_ISLNK(inode->i_mode))
+	switch (inode->i_mode & S_IFMT) {
+	case S_IFLNK:
 		return -ELOOP;
-	
-	if (S_ISDIR(inode->i_mode) && (acc_mode & MAY_WRITE))
-		return -EISDIR;
-
-	/*
-	 * FIFO's, sockets and device files are special: they don't
-	 * actually live on the filesystem itself, and as such you
-	 * can write to them even if the filesystem is read-only.
-	 */
-	if (S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
-	    	flag &= ~O_TRUNC;
-	} else if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
+	case S_IFDIR:
+		if (acc_mode & MAY_WRITE)
+			return -EISDIR;
+		break;
+	case S_IFBLK:
+	case S_IFCHR:
 		if (path->mnt->mnt_flags & MNT_NODEV)
 			return -EACCES;
-
+		/*FALLTHRU*/
+	case S_IFIFO:
+	case S_IFSOCK:
 		flag &= ~O_TRUNC;
+		break;
 	}
 
 	error = inode_permission(inode, acc_mode);
diff --git a/fs/namespace.c b/fs/namespace.c
index f0e7530..0a42e0e 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -397,11 +397,10 @@ static void __mnt_unmake_readonly(struct vfsmount *mnt)
 	spin_unlock(&vfsmount_lock);
 }
 
-int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb)
+void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb)
 {
 	mnt->mnt_sb = sb;
 	mnt->mnt_root = dget(sb->s_root);
-	return 0;
 }
 
 EXPORT_SYMBOL(simple_set_mnt);
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 07e9715..9c59072 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -79,7 +79,7 @@ static int ncp_hash_dentry(struct dentry *, struct qstr *);
 static int ncp_compare_dentry (struct dentry *, struct qstr *, struct qstr *);
 static int ncp_delete_dentry(struct dentry *);
 
-static struct dentry_operations ncp_dentry_operations =
+static const struct dentry_operations ncp_dentry_operations =
 {
 	.d_revalidate	= ncp_lookup_validate,
 	.d_hash		= ncp_hash_dentry,
@@ -87,7 +87,7 @@ static struct dentry_operations ncp_dentry_operations =
 	.d_delete	= ncp_delete_dentry,
 };
 
-struct dentry_operations ncp_root_dentry_operations =
+const struct dentry_operations ncp_root_dentry_operations =
 {
 	.d_hash		= ncp_hash_dentry,
 	.d_compare	= ncp_compare_dentry,
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 672368f..78bf72f 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -899,7 +899,7 @@ static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
 	iput(inode);
 }
 
-struct dentry_operations nfs_dentry_operations = {
+const struct dentry_operations nfs_dentry_operations = {
 	.d_revalidate	= nfs_lookup_revalidate,
 	.d_delete	= nfs_dentry_delete,
 	.d_iput		= nfs_dentry_iput,
@@ -967,7 +967,7 @@ out:
 #ifdef CONFIG_NFS_V4
 static int nfs_open_revalidate(struct dentry *, struct nameidata *);
 
-struct dentry_operations nfs4_dentry_operations = {
+const struct dentry_operations nfs4_dentry_operations = {
 	.d_revalidate	= nfs_open_revalidate,
 	.d_delete	= nfs_dentry_delete,
 	.d_iput		= nfs_dentry_iput,
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 4e4d332..84345de 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -179,7 +179,7 @@ struct nfs4_state_recovery_ops {
 	int (*recover_lock)(struct nfs4_state *, struct file_lock *);
 };
 
-extern struct dentry_operations nfs4_dentry_operations;
+extern const struct dentry_operations nfs4_dentry_operations;
 extern const struct inode_operations nfs4_dir_inode_operations;
 
 /* inode.c */
diff --git a/fs/notify/inotify/inotify.c b/fs/notify/inotify/inotify.c
index 331f2e8..220c13f 100644
--- a/fs/notify/inotify/inotify.c
+++ b/fs/notify/inotify/inotify.c
@@ -380,6 +380,14 @@ void inotify_unmount_inodes(struct list_head *list)
 		struct list_head *watches;
 
 		/*
+		 * We cannot __iget() an inode in state I_CLEAR, I_FREEING,
+		 * I_WILL_FREE, or I_NEW which is fine because by that point
+		 * the inode cannot have any associated watches.
+		 */
+		if (inode->i_state & (I_CLEAR|I_FREEING|I_WILL_FREE|I_NEW))
+			continue;
+
+		/*
 		 * If i_count is zero, the inode cannot have any watches and
 		 * doing an __iget/iput with MS_ACTIVE clear would actually
 		 * evict all inodes with zero i_count from icache which is
@@ -388,14 +396,6 @@ void inotify_unmount_inodes(struct list_head *list)
 		if (!atomic_read(&inode->i_count))
 			continue;
 
-		/*
-		 * We cannot __iget() an inode in state I_CLEAR, I_FREEING, or
-		 * I_WILL_FREE which is fine because by that point the inode
-		 * cannot have any associated watches.
-		 */
-		if (inode->i_state & (I_CLEAR | I_FREEING | I_WILL_FREE))
-			continue;
-
 		need_iput_tmp = need_iput;
 		need_iput = NULL;
 		/* In case inotify_remove_watch_locked() drops a reference. */
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index e9d7c20..7d60448 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -455,7 +455,7 @@ out_move:
 	d_move(dentry, target);
 }
 
-struct dentry_operations ocfs2_dentry_ops = {
+const struct dentry_operations ocfs2_dentry_ops = {
 	.d_revalidate		= ocfs2_dentry_revalidate,
 	.d_iput			= ocfs2_dentry_iput,
 };
diff --git a/fs/ocfs2/dcache.h b/fs/ocfs2/dcache.h
index d06e16c..faa12e7 100644
--- a/fs/ocfs2/dcache.h
+++ b/fs/ocfs2/dcache.h
@@ -26,7 +26,7 @@
 #ifndef OCFS2_DCACHE_H
 #define OCFS2_DCACHE_H
 
-extern struct dentry_operations ocfs2_dentry_ops;
+extern const struct dentry_operations ocfs2_dentry_ops;
 
 struct ocfs2_dentry_lock {
 	/* Use count of dentry lock */
diff --git a/fs/pipe.c b/fs/pipe.c
index 94ad159..4af7aa5 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -860,7 +860,7 @@ static char *pipefs_dname(struct dentry *dentry, char *buffer, int buflen)
 				dentry->d_inode->i_ino);
 }
 
-static struct dentry_operations pipefs_dentry_operations = {
+static const struct dentry_operations pipefs_dentry_operations = {
 	.d_delete	= pipefs_delete_dentry,
 	.d_dname	= pipefs_dname,
 };
@@ -1024,11 +1024,6 @@ int do_pipe_flags(int *fd, int flags)
 	return error;
 }
 
-int do_pipe(int *fd)
-{
-	return do_pipe_flags(fd, 0);
-}
-
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way Unix traditionally does this, though.
diff --git a/fs/proc/base.c b/fs/proc/base.c
index beaa0ce..aef6d55 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1545,7 +1545,7 @@ static int pid_delete_dentry(struct dentry * dentry)
 	return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first;
 }
 
-static struct dentry_operations pid_dentry_operations =
+static const struct dentry_operations pid_dentry_operations =
 {
 	.d_revalidate	= pid_revalidate,
 	.d_delete	= pid_delete_dentry,
@@ -1717,7 +1717,7 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
 	return 0;
 }
 
-static struct dentry_operations tid_fd_dentry_operations =
+static const struct dentry_operations tid_fd_dentry_operations =
 {
 	.d_revalidate	= tid_fd_revalidate,
 	.d_delete	= pid_delete_dentry,
@@ -2339,7 +2339,7 @@ static int proc_base_revalidate(struct dentry *dentry, struct nameidata *nd)
 	return 0;
 }
 
-static struct dentry_operations proc_base_dentry_operations =
+static const struct dentry_operations proc_base_dentry_operations =
 {
 	.d_revalidate	= proc_base_revalidate,
 	.d_delete	= pid_delete_dentry,
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index db7fa5c..5d2989e 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -363,7 +363,7 @@ static int proc_delete_dentry(struct dentry * dentry)
 	return 1;
 }
 
-static struct dentry_operations proc_dentry_operations =
+static const struct dentry_operations proc_dentry_operations =
 {
 	.d_delete	= proc_delete_dentry,
 };
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 94fcfff..9b1e4e9 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -7,7 +7,7 @@
 #include <linux/security.h>
 #include "internal.h"
 
-static struct dentry_operations proc_sys_dentry_operations;
+static const struct dentry_operations proc_sys_dentry_operations;
 static const struct file_operations proc_sys_file_operations;
 static const struct inode_operations proc_sys_inode_operations;
 static const struct file_operations proc_sys_dir_file_operations;
@@ -396,7 +396,7 @@ static int proc_sys_compare(struct dentry *dir, struct qstr *qstr,
 	return !sysctl_is_seen(PROC_I(dentry->d_inode)->sysctl);
 }
 
-static struct dentry_operations proc_sys_dentry_operations = {
+static const struct dentry_operations proc_sys_dentry_operations = {
 	.d_revalidate	= proc_sys_revalidate,
 	.d_delete	= proc_sys_delete,
 	.d_compare	= proc_sys_compare,
diff --git a/fs/proc/root.c b/fs/proc/root.c
index f6299a2..1e15a2b 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -83,7 +83,8 @@ static int proc_get_sb(struct file_system_type *fs_type,
 		ns->proc_mnt = mnt;
 	}
 
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	return 0;
 }
 
 static void proc_kill_sb(struct super_block *sb)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index eb93801..2ca967a 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -823,12 +823,12 @@ static void add_dquot_ref(struct super_block *sb, int type)
 
 	spin_lock(&inode_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
+		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
+			continue;
 		if (!atomic_read(&inode->i_writecount))
 			continue;
 		if (!dqinit_needed(inode, type))
 			continue;
-		if (inode->i_state & (I_FREEING|I_WILL_FREE))
-			continue;
 
 		__iget(inode);
 		spin_unlock(&inode_lock);
@@ -915,6 +915,12 @@ static void remove_dquot_ref(struct super_block *sb, int type,
 
 	spin_lock(&inode_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
+		/*
+		 *  We have to scan also I_NEW inodes because they can already
+		 *  have quota pointer initialized. Luckily, we need to touch
+		 *  only quota pointers and these have separate locking
+		 *  (dqptr_sem).
+		 */
 		if (!IS_NOQUOTA(inode))
 			remove_inode_dquot_ref(inode, type, tofree_head);
 	}
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index ad92461..ae881cc 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -1136,7 +1136,7 @@ xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
 	return 1;
 }
 
-static struct dentry_operations xattr_lookup_poison_ops = {
+static const struct dentry_operations xattr_lookup_poison_ops = {
 	.d_compare = xattr_lookup_poison,
 };
 
diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
index e7ddd03..3e4803b 100644
--- a/fs/smbfs/dir.c
+++ b/fs/smbfs/dir.c
@@ -277,7 +277,7 @@ static int smb_hash_dentry(struct dentry *, struct qstr *);
 static int smb_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
 static int smb_delete_dentry(struct dentry *);
 
-static struct dentry_operations smbfs_dentry_operations =
+static const struct dentry_operations smbfs_dentry_operations =
 {
 	.d_revalidate	= smb_lookup_validate,
 	.d_hash		= smb_hash_dentry,
@@ -285,7 +285,7 @@ static struct dentry_operations smbfs_dentry_operations =
 	.d_delete	= smb_delete_dentry,
 };
 
-static struct dentry_operations smbfs_dentry_operations_case =
+static const struct dentry_operations smbfs_dentry_operations_case =
 {
 	.d_revalidate	= smb_lookup_validate,
 	.d_delete	= smb_delete_dentry,
diff --git a/fs/super.c b/fs/super.c
index 49d0bd3..2ba4815 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -838,7 +838,8 @@ int get_sb_bdev(struct file_system_type *fs_type,
 		bdev->bd_super = s;
 	}
 
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 
 error_s:
 	error = PTR_ERR(s);
@@ -884,7 +885,8 @@ int get_sb_nodev(struct file_system_type *fs_type,
 		return error;
 	}
 	s->s_flags |= MS_ACTIVE;
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 }
 
 EXPORT_SYMBOL(get_sb_nodev);
@@ -916,7 +918,8 @@ int get_sb_single(struct file_system_type *fs_type,
 		s->s_flags |= MS_ACTIVE;
 	}
 	do_remount_sb(s, flags, data, 0);
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 }
 
 EXPORT_SYMBOL(get_sb_single);
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 66aeb4f..d88d0fa 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -302,7 +302,7 @@ static void sysfs_d_iput(struct dentry * dentry, struct inode * inode)
 	iput(inode);
 }
 
-static struct dentry_operations sysfs_dentry_ops = {
+static const struct dentry_operations sysfs_dentry_ops = {
 	.d_iput		= sysfs_d_iput,
 };
 
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index a1f1ef3..33e047b 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -38,7 +38,7 @@ static int sysv_hash(struct dentry *dentry, struct qstr *qstr)
 	return 0;
 }
 
-struct dentry_operations sysv_dentry_operations = {
+const struct dentry_operations sysv_dentry_operations = {
 	.d_hash		= sysv_hash,
 };
 
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 38ebe3f..5784a31 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -170,7 +170,7 @@ extern const struct file_operations sysv_file_operations;
 extern const struct file_operations sysv_dir_operations;
 extern const struct address_space_operations sysv_aops;
 extern const struct super_operations sysv_sops;
-extern struct dentry_operations sysv_dentry_operations;
+extern const struct dentry_operations sysv_dentry_operations;
 
 
 enum {
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 1182b66..c5c9835 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2034,7 +2034,8 @@ static int ubifs_get_sb(struct file_system_type *fs_type, int flags,
 	/* 'fill_super()' opens ubi again so we must close it here */
 	ubi_close_volume(ubi);
 
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	return 0;
 
 out_deact:
 	up_write(&sb->s_umount);
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 39f8778..3d2512c 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -622,7 +622,6 @@ static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
 	struct ufs_inode_info *ufsi = UFS_I(inode);
 	struct super_block *sb = inode->i_sb;
 	mode_t mode;
-	unsigned i;
 
 	/*
 	 * Copy data to the in-core inode.
@@ -655,11 +654,12 @@ static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
 
 	
 	if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
-			ufsi->i_u1.i_data[i] = ufs_inode->ui_u2.ui_addr.ui_db[i];
+		memcpy(ufsi->i_u1.i_data, &ufs_inode->ui_u2.ui_addr,
+		       sizeof(ufs_inode->ui_u2.ui_addr));
 	} else {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
-			ufsi->i_u1.i_symlink[i] = ufs_inode->ui_u2.ui_symlink[i];
+		memcpy(ufsi->i_u1.i_symlink, ufs_inode->ui_u2.ui_symlink,
+		       sizeof(ufs_inode->ui_u2.ui_symlink) - 1);
+		ufsi->i_u1.i_symlink[sizeof(ufs_inode->ui_u2.ui_symlink) - 1] = 0;
 	}
 	return 0;
 }
@@ -669,7 +669,6 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
 	struct ufs_inode_info *ufsi = UFS_I(inode);
 	struct super_block *sb = inode->i_sb;
 	mode_t mode;
-	unsigned i;
 
 	UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
 	/*
@@ -704,12 +703,12 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
 	*/
 
 	if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
-			ufsi->i_u1.u2_i_data[i] =
-				ufs2_inode->ui_u2.ui_addr.ui_db[i];
+		memcpy(ufsi->i_u1.u2_i_data, &ufs2_inode->ui_u2.ui_addr,
+		       sizeof(ufs2_inode->ui_u2.ui_addr));
 	} else {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
-			ufsi->i_u1.i_symlink[i] = ufs2_inode->ui_u2.ui_symlink[i];
+		memcpy(ufsi->i_u1.i_symlink, ufs2_inode->ui_u2.ui_symlink,
+		       sizeof(ufs2_inode->ui_u2.ui_symlink) - 1);
+		ufsi->i_u1.i_symlink[sizeof(ufs2_inode->ui_u2.ui_symlink) - 1] = 0;
 	}
 	return 0;
 }
@@ -781,7 +780,6 @@ static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
 {
 	struct super_block *sb = inode->i_sb;
  	struct ufs_inode_info *ufsi = UFS_I(inode);
- 	unsigned i;
 
 	ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
 	ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
@@ -809,12 +807,12 @@ static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
 		/* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
 		ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
 	} else if (inode->i_blocks) {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
-			ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.i_data[i];
+		memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.i_data,
+		       sizeof(ufs_inode->ui_u2.ui_addr));
 	}
 	else {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
-			ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
+		memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
+		       sizeof(ufs_inode->ui_u2.ui_symlink));
 	}
 
 	if (!inode->i_nlink)
@@ -825,7 +823,6 @@ static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
 {
 	struct super_block *sb = inode->i_sb;
  	struct ufs_inode_info *ufsi = UFS_I(inode);
- 	unsigned i;
 
 	UFSD("ENTER\n");
 	ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
@@ -850,11 +847,11 @@ static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
 		/* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
 		ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0];
 	} else if (inode->i_blocks) {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
-			ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.u2_i_data[i];
+		memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.u2_i_data,
+		       sizeof(ufs_inode->ui_u2.ui_addr));
 	} else {
-		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
-			ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
+		memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
+		       sizeof(ufs_inode->ui_u2.ui_symlink));
  	}
 
 	if (!inode->i_nlink)
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index e3a9b1f..23119fe 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -147,7 +147,7 @@ static int ufs_symlink (struct inode * dir, struct dentry * dentry,
 	} else {
 		/* fast symlink */
 		inode->i_op = &ufs_fast_symlink_inode_operations;
-		memcpy((char*)&UFS_I(inode)->i_u1.i_data,symname,l);
+		memcpy(UFS_I(inode)->i_u1.i_symlink, symname, l);
 		inode->i_size = l-1;
 	}
 	mark_inode_dirty(inode);
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 261a1c2..e1c1fc5 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -636,6 +636,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 	unsigned block_size, super_block_size;
 	unsigned flags;
 	unsigned super_block_offset;
+	unsigned maxsymlen;
 	int ret = -EINVAL;
 
 	uspi = NULL;
@@ -1069,6 +1070,16 @@ magic_found:
 		uspi->s_maxsymlinklen =
 		    fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen);
 
+	if (uspi->fs_magic == UFS2_MAGIC)
+		maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR);
+	else
+		maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR);
+	if (uspi->s_maxsymlinklen > maxsymlen) {
+		ufs_warning(sb, __func__, "ufs_read_super: excessive maximum "
+			    "fast symlink size (%u)\n", uspi->s_maxsymlinklen);
+		uspi->s_maxsymlinklen = maxsymlen;
+	}
+
 	inode = ufs_iget(sb, UFS_ROOTINO);
 	if (IS_ERR(inode)) {
 		ret = PTR_ERR(inode);
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index 11c0351..69b3427 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -23,7 +23,7 @@ struct ufs_sb_info {
 struct ufs_inode_info {
 	union {
 		__fs32	i_data[15];
-		__u8	i_symlink[4*15];
+		__u8	i_symlink[2 * 4 * 15];
 		__fs64	u2_i_data[15];
 	} i_u1;
 	__u32	i_flags;