NFS: Use nfs_refresh_inode() in ops that aren't expected to change the inode

nfs_post_op_update_inode() is really only meant to be used if we expect the
inode and its attributes to have changed in some way.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 6e05f6c..4cdc236 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -777,8 +777,7 @@
 {
 	if (nfs3_async_handle_jukebox(task, data->inode))
 		return -EAGAIN;
-	if (task->tk_status >= 0)
-		nfs_post_op_update_inode(data->inode, data->res.fattr);
+	nfs_refresh_inode(data->inode, data->res.fattr);
 	return 0;
 }