@@ -, +, @@ 
 cifs_atomic_open
 fs/cifs/dir.c | 6 ++++++
 1 file changed, 6 insertions(+)
--- a/fs/cifs/dir.c	
+++ a/fs/cifs/dir.c	
@@ -398,6 +398,12 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
 	 * in network traffic in the other paths.
 	 */
 	if (!(oflags & O_CREAT)) {
+		/* 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;
+
 		struct dentry *res = cifs_lookup(inode, direntry, 0);
 		if (IS_ERR(res))
 			return PTR_ERR(res);