From d6385db94196b253ae5eb3678fa95cdf1f839fcc Mon Sep 17 00:00:00 2001 From: Guoqing Jiang Date: Fri, 12 Aug 2016 13:42:43 +0800 Subject: [PATCH] md-cluster: make resync lock also could be interruptted When one node is perform resync or recovery, other nodes can't get resync lock and could block for a while before it holds the lock, so we can't stop array immediately for this scenario. To make array could be stop quickly, we check MD_CLOSING in dlm_lock_sync_interruptible to make us can interrupt the lock request. Reviewed-by: NeilBrown Signed-off-by: Guoqing Jiang Signed-off-by: Shaohua Li --- drivers/md/md-cluster.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index 43b90485448d..2b13117fb918 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -161,7 +161,8 @@ static int dlm_lock_sync_interruptible(struct dlm_lock_resource *res, int mode, return ret; wait_event(res->sync_locking, res->sync_locking_done - || kthread_should_stop()); + || kthread_should_stop() + || test_bit(MD_CLOSING, &mddev->flags)); if (!res->sync_locking_done) { /* * the convert queue contains the lock request when request is @@ -1045,7 +1046,7 @@ static void metadata_update_cancel(struct mddev *mddev) static int resync_start(struct mddev *mddev) { struct md_cluster_info *cinfo = mddev->cluster_info; - return dlm_lock_sync(cinfo->resync_lockres, DLM_LOCK_EX); + return dlm_lock_sync_interruptible(cinfo->resync_lockres, DLM_LOCK_EX, mddev); } static int resync_info_update(struct mddev *mddev, sector_t lo, sector_t hi)