[PATCH 2/5] NFSv4: Don't attempt an atomic open if the file is a mountpoint

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Fix https://bugzilla.kernel.org/show_bug.cgi?id=15789

Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
 fs/nfs/dir.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index be46f26..fbb4cf7 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1050,7 +1050,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
 	struct inode *dir;
 	int openflags, ret = 0;
 
-	if (!is_atomic_open(nd))
+	if (!is_atomic_open(nd) || d_mountpoint(dentry))
 		goto no_open;
 	parent = dget_parent(dentry);
 	dir = parent->d_inode;
-- 
1.6.6.1

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