dm: convert workqueues to alloc_ordered

Convert all create[_singlethread]_work() users to the new
alloc[_ordered]_workqueue().  This conversion is mechanical and
doesn't introduce any behavior change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 2129cdb115dc..d3021a69c857 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -818,7 +818,7 @@ static int persistent_ctr(struct dm_exception_store *store,
         atomic_set(&ps->pending_count, 0);
         ps->callbacks = NULL;
 
-        ps->metadata_wq = create_singlethread_workqueue("ksnaphd");
+        ps->metadata_wq = alloc_ordered_workqueue("ksnaphd", WQ_MEM_RECLAIM);
         if (!ps->metadata_wq) {
                 kfree(ps);
                 DMERR("couldn't start header metadata update thread");