Commit 16a43f6a authored by Shaohua Li's avatar Shaohua Li Committed by NeilBrown
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raid5-cache: handle journal hotadd in quiesce 



Handle journal hotadd in quiesce to avoid creating duplicated threads.

Signed-off-by: default avatarShaohua Li <shli@fb.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.com>
parent 87d4d916

drivers/md/raid5-cache.c

+7 −0
Original line number Diff line number Diff line
@@ -827,6 +827,13 @@ void r5l_quiesce(struct r5l_log *log, int state) 
		return;

	if (state == 0) {

		log->in_teardown = 0;

		/*

		 * This is a special case for hotadd. In suspend, the array has

		 * no journal. In resume, journal is initialized as well as the

		 * reclaim thread.

		 */

		if (log->reclaim_thread)

			return;

		log->reclaim_thread = md_register_thread(r5l_reclaim_thread,

					log->rdev->mddev, "reclaim");

	} else if (state == 1) {