commit 54c33e7f95284539e52ec2d99dcdf6efd29b247f
author Miklos Szeredi <mszeredi@suse.cz> Mon May 21 17:30:10 2012 +0200
committer Al Viro <viro@zeniv.linux.org.uk> Fri Jun 01 12:11:58 2012 -0400
tree 777bbd294473b78538ba5ad3151c6e2596c94eee
parent d45ea86792db9679ed010b2c3df3db32b2ce5bde

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>

fs/namei.c

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 @@
 	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) {