linux-kernel - [PATCH review for 4.9 33/50] ceph: don't update_dentry

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Date:   Mon, 25 Sep 2017 01:12:53 +0000
From:   "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Jeff Layton <jlayton@...hat.com>,
        Ilya Dryomov <idryomov@...il.com>,
        "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com>
Subject: [PATCH review for 4.9 33/50] ceph: don't update_dentry_lease unless
 we actually got one

From: Jeff Layton <jlayton@...hat.com>

[ Upstream commit 80d025ffede88969f6adf7266fbdedfd5641148a ]

This if block updates the dentry lease even in the case where
the MDS didn't grant one.

Signed-off-by: Jeff Layton <jlayton@...hat.com>
Reviewed-by: Yan, Zheng <zyan@...hat.com>
Signed-off-by: Ilya Dryomov <idryomov@...il.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 fs/ceph/inode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 953275b651bc..4a6df2ce0f76 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1323,8 +1323,8 @@ retry_lookup:
 				ceph_dir_clear_ordered(dir);
 				dout("d_delete %p\n", dn);
 				d_delete(dn);
-			} else {
-				if (have_lease && d_unhashed(dn))
+			} else if (have_lease) {
+				if (d_unhashed(dn))
 					d_add(dn, NULL);
 				update_dentry_lease(dn, rinfo->dlease,
 						    session,
-- 
2.11.0