From 5b549cbf3f1873054c6d187b09aa9f9313971b1f Mon Sep 17 00:00:00 2001
From: Kinglong Mee <kinglongmee@gmail.com>
Date: Mon, 18 Mar 2019 20:47:54 +0800
Subject: [PATCH 414/449] cluster-syncop: avoid duplicate unlock of
 inodelk/entrylk

When using ec, there are many spam messages in brick and client
logs files.

When shd does entry heal, it takes lock on a directory using
cluster_tiebreaker_inodelk(). If it does not get lock on all
the bricks because other clients has got lock on some bricks,
it will unlock the locks on those bricks which it got and then
will try blocking locks (If any one of the previous was successful).

The problem come here. In case we do not get locks on all the
required bricks, we are sending unlock request twice on those
bricks where we got the locks.

BUG: 1750211
> Upstream patch: https://review.gluster.org/#/c/glusterfs/+/22377/
> Change-Id: Ib164d29ebb071f620a4ca9679c4345ef7c88512a
> Updates: bz#1689920
> Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>

Change-Id: I1647548ba75fdd27fd4e20dec08db67774f43375
Reviewed-on: https://code.engineering.redhat.com/gerrit/202477
Tested-by: Ashish Pandey <aspandey@redhat.com>
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
 libglusterfs/src/cluster-syncop.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libglusterfs/src/cluster-syncop.c b/libglusterfs/src/cluster-syncop.c
index 5a08f26..6ee89dd 100644
--- a/libglusterfs/src/cluster-syncop.c
+++ b/libglusterfs/src/cluster-syncop.c
@@ -1203,6 +1203,10 @@ cluster_tiebreaker_inodelk(xlator_t **subvols, unsigned char *on,
             if (num_success) {
                 FOP_SEQ(subvols, on, numsubvols, replies, locked_on, frame,
                         inodelk, dom, &loc, F_SETLKW, &flock, NULL);
+            } else {
+                loc_wipe(&loc);
+                memset(locked_on, 0, numsubvols);
+                return 0;
             }
             break;
         }
@@ -1244,7 +1248,9 @@ cluster_tiebreaker_entrylk(xlator_t **subvols, unsigned char *on,
                         entrylk, dom, &loc, name, ENTRYLK_LOCK, ENTRYLK_WRLCK,
                         NULL);
             } else {
+                loc_wipe(&loc);
                 memset(locked_on, 0, numsubvols);
+                return 0;
             }
             break;
         }
-- 
1.8.3.1