From 425ecb04d15abd9630d89f76a549c43bb53a2b38 Mon Sep 17 00:00:00 2001
From: Sachin Prabhu <sprabhu@redhat.com>
Date: Mon, 5 Nov 2012 11:39:32 +0000
Subject: [PATCH] --- yaml --- r: 335565 b: refs/heads/master c:
 3798f47aa276b332c30da499cb4df4577e2f8872 h: refs/heads/master i:   335563:
 1dbab747599baaed021004366c0caa574c3a3b64 v: v3

---
 [refs]              |  2 +-
 trunk/fs/cifs/dir.c | 11 ++++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 0b7f3ccefe8a..40a3e15ab88b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 36960e440ccf94349c09fb944930d3bfe4bc473f
+refs/heads/master: 3798f47aa276b332c30da499cb4df4577e2f8872
diff --git a/trunk/fs/cifs/dir.c b/trunk/fs/cifs/dir.c
index 7c0a81283645..d3671f2acb29 100644
--- a/trunk/fs/cifs/dir.c
+++ b/trunk/fs/cifs/dir.c
@@ -398,7 +398,16 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
 	 * in network traffic in the other paths.
 	 */
 	if (!(oflags & O_CREAT)) {
-		struct dentry *res = cifs_lookup(inode, direntry, 0);
+		struct dentry *res;
+
+		/*
+		 * Check for hashed negative dentry. We have already revalidated
+		 * the dentry and it is fine. No need to perform another lookup.
+		 */
+		if (!d_unhashed(direntry))
+			return -ENOENT;
+
+		res = cifs_lookup(inode, direntry, 0);
 		if (IS_ERR(res))
 			return PTR_ERR(res);