From: Benjamin Coddington <bcodding@redhat.com>
Date: Wed, 10 Sep 2014 18:09:20 +0000 (-0400)
Subject: GFS2: Hash the negative dentry during inode lookup
X-Git-Tag: v3.17-rc6~20^2~2
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=7b7a91152d3c2ddca95172cac1675625cc8dffaf;p=~emulex%2Finfiniband.git

GFS2: Hash the negative dentry during inode lookup

Fix a regression introduced by:
6d4ade986f9c8df31e68 GFS2: Add atomic_open support
where an early return misses d_splice_alias() which had been
adding the negative dentry.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index e62e5947788..9317ddc1b3c 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -840,8 +840,10 @@ static struct dentry *__gfs2_lookup(struct inode *dir, struct dentry *dentry,
 	int error;
 
 	inode = gfs2_lookupi(dir, &dentry->d_name, 0);
-	if (!inode)
+	if (inode == NULL) {
+		d_add(dentry, NULL);
 		return NULL;
+	}
 	if (IS_ERR(inode))
 		return ERR_CAST(inode);