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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>
This commit is contained in:
Guoqing Jiang 2017-02-24 11:15:13 +08:00 committed by Shaohua Li
parent 9c8043f337
commit 75df023f4f
1 changed files with 0 additions and 1 deletions
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drivers/md/md-cluster.c
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@ -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",