From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 28 Nov 2014 08:33:34 +0000 (+0300)
Subject: ceph: do_sync is never initialized
X-Git-Tag: firefly_0821_release~176^2~2639^2~2
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=021b77bee210843bed1ea91b5cad58235ff9c8e5;p=firefly-linux-kernel-4.4.55.git

ceph: do_sync is never initialized

Probably this code was syncing a lot more often then intended because
the do_sync variable wasn't set to zero.

Cc: stable@vger.kernel.org # v3.11+
Fixes: c62988ec0910 ('ceph: avoid meaningless calling ceph_caps_revoking if sync_mode == WB_SYNC_ALL.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
---

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 70a3b441261b..f5013d92a7e6 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -689,7 +689,7 @@ static int ceph_writepages_start(struct address_space *mapping,
 	int rc = 0;
 	unsigned wsize = 1 << inode->i_blkbits;
 	struct ceph_osd_request *req = NULL;
-	int do_sync;
+	int do_sync = 0;
 	u64 truncate_size, snap_size;
 	u32 truncate_seq;