From: Guoqing Jiang <gqjiang@suse.com>
Date: Fri, 24 Feb 2017 03:15:13 +0000 (+0800)
Subject: md-cluster: remove useless memset from gather_all_resync_info
X-Git-Tag: v4.11-rc3~23^2~7
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=75df023f4f2188c21181996e28234fef9351ef45;p=karo-tx-linux.git

md-cluster: remove useless memset from gather_all_resync_info

This memset is not needed.  The lvb is already zeroed because
it was recently allocated by lockres_init, which uses kzalloc(),
and read_resync_info() doesn't need it to be zero anyway.

Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
---

diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index ba7edcdd09ce..321ecac23027 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -777,7 +777,6 @@ static int gather_all_resync_info(struct mddev *mddev, int total_slots)
 		bm_lockres->flags |= DLM_LKF_NOQUEUE;
 		ret = dlm_lock_sync(bm_lockres, DLM_LOCK_PW);
 		if (ret == -EAGAIN) {
-			memset(bm_lockres->lksb.sb_lvbptr, '\0', LVB_SIZE);
 			s = read_resync_info(mddev, bm_lockres);
 			if (s) {
 				pr_info("%s:%d Resync[%llu..%llu] in progress on %d\n",