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| author | Mikulas Patocka | 2009-04-02 20:55:39 +0200 |
|---|---|---|
| committer | Alasdair G Kergon | 2009-04-02 20:55:39 +0200 |
| commit | 99360b4c18f7675b50d283301d46d755affe75fd (patch) | |
| tree | 1ad78057b086aa1571cc8dcf2443c819f75ca30a /drivers/md | |
| parent | dm: move wait queue declaration (diff) | |
| download | kernel-qcow2-linux-99360b4c18f7675b50d283301d46d755affe75fd.tar.gz kernel-qcow2-linux-99360b4c18f7675b50d283301d46d755affe75fd.tar.xz kernel-qcow2-linux-99360b4c18f7675b50d283301d46d755affe75fd.zip | |
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>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 7867d905ff89..788ba96a6256 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); |