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authorMikulas Patocka <mpatocka@redhat.com>2009-04-02 19:55:39 +0100
committerAlasdair G Kergon <agk@redhat.com>2009-04-02 19:55:39 +0100
commit99360b4c18f7675b50d283301d46d755affe75fd (patch)
tree1ad78057b086aa1571cc8dcf2443c819f75ca30a
parentb44ebeb017b8a5fe5439e1259708b68cf83a8921 (diff)
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>
-rw-r--r--drivers/md/dm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 7867d905ff8..788ba96a625 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -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);