diff options
| author | Jens Axboe <axboe@kernel.dk> | 2018-10-11 05:49:26 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2018-10-11 18:36:09 +0300 |
| commit | 6a23e05c2fe3c64ec012fd81e51e3ab51e4f2f9f (patch) | |
| tree | 43687a888b009ec49092138e6d691503669b4dc1 /drivers/md/dm-mpath.c | |
| parent | 118aa47c7072bce05fc39bd40a1c0a90caed72ab (diff) | |
| download | linux-6a23e05c2fe3c64ec012fd81e51e3ab51e4f2f9f.tar.xz | |
dm: remove legacy request-based IO path
dm supports both, and since we're killing off the legacy path in
general, get rid of it in dm.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-mpath.c')
| -rw-r--r-- | drivers/md/dm-mpath.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 419362c2d8ac..a24ed3973e7c 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -203,14 +203,7 @@ static struct multipath *alloc_multipath(struct dm_target *ti) static int alloc_multipath_stage2(struct dm_target *ti, struct multipath *m) { if (m->queue_mode == DM_TYPE_NONE) { - /* - * Default to request-based. - */ - if (dm_use_blk_mq(dm_table_get_md(ti->table))) - m->queue_mode = DM_TYPE_MQ_REQUEST_BASED; - else - m->queue_mode = DM_TYPE_REQUEST_BASED; - + m->queue_mode = DM_TYPE_MQ_REQUEST_BASED; } else if (m->queue_mode == DM_TYPE_BIO_BASED) { INIT_WORK(&m->process_queued_bios, process_queued_bios); /* @@ -537,10 +530,7 @@ static int multipath_clone_and_map(struct dm_target *ti, struct request *rq, * get the queue busy feedback (via BLK_STS_RESOURCE), * otherwise I/O merging can suffer. */ - if (q->mq_ops) - return DM_MAPIO_REQUEUE; - else - return DM_MAPIO_DELAY_REQUEUE; + return DM_MAPIO_REQUEUE; } clone->bio = clone->biotail = NULL; clone->rq_disk = bdev->bd_disk; |