From 54c33e7f95284539e52ec2d99dcdf6efd29b247f Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Mon, 21 May 2012 17:30:10 +0200
Subject: vfs: do_last(): make ENOENT exit RCU safe

This will allow this code to be used in RCU mode.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/namei.c b/fs/namei.c
index c6b9968..a7e994b 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2361,8 +2361,10 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
 	BUG_ON(nd->flags & LOOKUP_RCU);
 	inode = path->dentry->d_inode;
 	error = -ENOENT;
-	if (!inode)
-		goto exit_dput;
+	if (!inode) {
+		path_to_nameidata(path, nd);
+		goto exit;
+	}
 
 	if (should_follow_link(inode, !symlink_ok)) {
 		if (nd->flags & LOOKUP_RCU) {
-- 
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