From 9374c0b0478ec81ece63a77e7eff99d59e8abebe Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Thu, 20 Dec 2012 16:04:09 -0500
Subject: [PATCH] --- yaml --- r: 347844 b: refs/heads/master c:
 b76d8b82266077dc7098dd13f321a616099a1bd8 h: refs/heads/master v: v3

---
 [refs]           | 2 +-
 trunk/fs/namei.c | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index bcdb61788c0c..aa9f08a673e4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 972567f14cbcd437e9a88a73836bbc2ee0720b5f
+refs/heads/master: b76d8b82266077dc7098dd13f321a616099a1bd8
diff --git a/trunk/fs/namei.c b/trunk/fs/namei.c
index b70c191b7e2b..1beebc1a38c9 100644
--- a/trunk/fs/namei.c
+++ b/trunk/fs/namei.c
@@ -3243,8 +3243,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)
 	struct dentry *dentry;
 	struct path path;
 	int error;
+	unsigned int lookup_flags = LOOKUP_DIRECTORY;
 
-	dentry = user_path_create(dfd, pathname, &path, LOOKUP_DIRECTORY);
+retry:
+	dentry = user_path_create(dfd, pathname, &path, lookup_flags);
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
@@ -3254,6 +3256,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)
 	if (!error)
 		error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
 	done_path_create(&path, dentry);
+	if (retry_estale(error, lookup_flags)) {
+		lookup_flags |= LOOKUP_REVAL;
+		goto retry;
+	}
 	return error;
 }