Commit 99360b4c authored Apr 02, 2009 by Mikulas Patocka Committed by Alasdair G Kergon Apr 02, 2009

dm: set queue ordered mode



Set queue ordered mode.  It doesn't really matter what we set here
because we don't ever put any requests on the queue.  But we need to set
something other than QUEUE_ORDERED_NONE so that __generic_make_request
passes barrier requests to us.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

parent b44ebeb0

drivers/md/dm.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1112,6 +1112,7 @@ static struct mapped_device *alloc_dev(int minor)
		md->queue->backing_dev_info.congested_fn = dm_any_congested;
		md->queue->backing_dev_info.congested_data = md;
		blk_queue_make_request(md->queue, dm_request);
		blk_queue_ordered(md->queue, QUEUE_ORDERED_DRAIN, NULL);
		blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY);
		md->queue->unplug_fn = dm_unplug_all;
		blk_queue_merge_bvec(md->queue, dm_merge_bvec);