md-cluster: remove useless memset from gather_all_resync_info
authorGuoqing Jiang <gqjiang@suse.com>
Fri, 24 Feb 2017 03:15:13 +0000 (11:15 +0800)
committerShaohua Li <shli@fb.com>
Thu, 9 Mar 2017 17:02:06 +0000 (09:02 -0800)
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>
drivers/md/md-cluster.c

index ba7edcdd09cec7f607d7b9f203ba5417fe20f10d..321ecac23027804d18ded577a5c05604ec46220a 100644 (file)
@@ -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",