Merge git://oss.sgi.com:8090/nathans/xfs-2.6

* git://oss.sgi.com:8090/nathans/xfs-2.6:
  [XFS] Fixup whitespace damage in log_write, remove final warning.
  [XFS] Rework code snippets slightly to remove remaining recent-gcc
  [XFS] Fix realtime subvolume expansion, a porting bug b0rked it.  Coverity
  [XFS] Remove a race condition where a linked inode could BUG_ON in
  [XFS] Remove redundant directory checks from inode link operation.
  [XFS] Remove a couple of no-longer-used macros.
  [XFS] Reduce size of xfs_trans_t structure. * remove ->t_forw, ->t_back --
  [XFS] remove unused behaviour lock - shrink XFS vnode as a side effect.
  [XFS] * There is trivial "inode => vnode => inode" conversion, but only
  [XFS] link(2) on directory is banned in VFS.

1 files changed, 4 insertions, 5 deletions

diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 12810baeb5d4..d9180020de63 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -419,16 +419,15 @@ xfs_vn_link(
 	int		error;
 
 	ip = old_dentry->d_inode;	/* inode being linked to */
-	if (S_ISDIR(ip->i_mode))
-		return -EPERM;
-
 	tdvp = vn_from_inode(dir);
 	vp = vn_from_inode(ip);
 
+	VN_HOLD(vp);
 	error = bhv_vop_link(tdvp, vp, dentry, NULL);
-	if (likely(!error)) {
+	if (unlikely(error)) {
+		VN_RELE(vp);
+	} else {
 		VMODIFY(tdvp);
-		VN_HOLD(vp);
 		xfs_validate_fields(ip, &vattr);
 		d_instantiate(dentry, ip);
 	}