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: (46 commits)
  [PATCH] fs: add a sanity check in d_free
  [PATCH] i_version: remount support
  [patch] vfs: make security_inode_setattr() calling consistent
  [patch 1/3] FS_MBCACHE: don't needlessly make it built-in
  [PATCH] move executable checking into ->permission()
  [PATCH] fs/dcache.c: update comment of d_validate()
  [RFC PATCH] touch_mnt_namespace when the mount flags change
  [PATCH] reiserfs: add missing llseek method
  [PATCH] fix ->llseek for more directories
  [PATCH vfs-2.6 6/6] vfs: add LOOKUP_RENAME_TARGET intent
  [PATCH vfs-2.6 5/6] vfs: remove LOOKUP_PARENT from non LOOKUP_PARENT lookup
  [PATCH vfs-2.6 4/6] vfs: remove unnecessary fsnotify_d_instantiate()
  [PATCH vfs-2.6 3/6] vfs: add __d_instantiate() helper
  [PATCH vfs-2.6 2/6] vfs: add d_ancestor()
  [PATCH vfs-2.6 1/6] vfs: replace parent == dentry->d_parent by IS_ROOT()
  [PATCH] get rid of on-stack dentry in udf
  [PATCH 2/2] anondev: switch to IDA
  [PATCH 1/2] anondev: init IDR statically
  [JFFS2] Use d_splice_alias() not d_add() in jffs2_lookup()
  [PATCH] Optimise NFS readdir hack slightly.
  ...

1 files changed, 8 insertions, 12 deletions

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index cc91227d3bb..80246bad1b7 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -94,9 +94,8 @@ find_disconnected_root(struct dentry *dentry)
  * It may already be, as the flag isn't always updated when connection happens.
  */
 static int
-reconnect_path(struct vfsmount *mnt, struct dentry *target_dir)
+reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 {
-	char nbuf[NAME_MAX+1];
 	int noprogress = 0;
 	int err = -ESTALE;
 
@@ -281,13 +280,14 @@ static int get_name(struct vfsmount *mnt, struct dentry *dentry,
 		int old_seq = buffer.sequence;
 
 		error = vfs_readdir(file, filldir_one, &buffer);
+		if (buffer.found) {
+			error = 0;
+			break;
+		}
 
 		if (error < 0)
 			break;
 
-		error = 0;
-		if (buffer.found)
-			break;
 		error = -ENOENT;
 		if (old_seq == buffer.sequence)
 			break;
@@ -360,14 +360,13 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
 {
 	const struct export_operations *nop = mnt->mnt_sb->s_export_op;
 	struct dentry *result, *alias;
+	char nbuf[NAME_MAX+1];
 	int err;
 
 	/*
 	 * Try to get any dentry for the given file handle from the filesystem.
 	 */
 	result = nop->fh_to_dentry(mnt->mnt_sb, fid, fh_len, fileid_type);
-	if (!result)
-		result = ERR_PTR(-ESTALE);
 	if (IS_ERR(result))
 		return result;
 
@@ -381,7 +380,7 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
 		 * filesystem root.
 		 */
 		if (result->d_flags & DCACHE_DISCONNECTED) {
-			err = reconnect_path(mnt, result);
+			err = reconnect_path(mnt, result, nbuf);
 			if (err)
 				goto err_result;
 		}
@@ -397,7 +396,6 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
 		 * It's not a directory.  Life is a little more complicated.
 		 */
 		struct dentry *target_dir, *nresult;
-		char nbuf[NAME_MAX+1];
 
 		/*
 		 * See if either the dentry we just got from the filesystem
@@ -422,8 +420,6 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
 
 		target_dir = nop->fh_to_parent(mnt->mnt_sb, fid,
 				fh_len, fileid_type);
-		if (!target_dir)
-			goto err_result;
 		err = PTR_ERR(target_dir);
 		if (IS_ERR(target_dir))
 			goto err_result;
@@ -433,7 +429,7 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
 		 * connected to the filesystem root.  The VFS really doesn't
 		 * like disconnected directories..
 		 */
-		err = reconnect_path(mnt, target_dir);
+		err = reconnect_path(mnt, target_dir, nbuf);
 		if (err) {
 			dput(target_dir);
 			goto err_result;