diff options
| author |   Mike Snitzer <snitzer@redhat.com> | 2018-10-11 11:06:29 -0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2018-10-11 11:36:09 -0400 |
| commit | 953923c09fe83255ae11845db1c9eb576ba73df8 (patch) | |
| tree | 7408f54cf21487bee8679f55d9f1bb607ad80236 /drivers/md/dm-mpath.c | |
| parent | dm: remove legacy request-based IO path (diff) | |
| download | linux-dev-953923c09fe83255ae11845db1c9eb576ba73df8.tar.xz linux-dev-953923c09fe83255ae11845db1c9eb576ba73df8.zip | |
dm: rename DM_TYPE_MQ_REQUEST_BASED to DM_TYPE_REQUEST_BASED
Now that request-based DM is only using blk-mq, there is no need to
differentiate between legacy "rq" and new "mq". We're back to a single
request-based DM -- and there was much rejoicing!
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, 5 insertions, 9 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index a24ed3973e7c..d6a66921daf4 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -203,7 +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) { - m->queue_mode = DM_TYPE_MQ_REQUEST_BASED; + m->queue_mode = DM_TYPE_REQUEST_BASED; } else if (m->queue_mode == DM_TYPE_BIO_BASED) { INIT_WORK(&m->process_queued_bios, process_queued_bios); /* @@ -658,7 +658,7 @@ static int multipath_map_bio(struct dm_target *ti, struct bio *bio) static void process_queued_io_list(struct multipath *m) { - if (m->queue_mode == DM_TYPE_MQ_REQUEST_BASED) + if (m->queue_mode == DM_TYPE_REQUEST_BASED) dm_mq_kick_requeue_list(dm_table_get_md(m->ti->table)); else if (m->queue_mode == DM_TYPE_BIO_BASED) queue_work(kmultipathd, &m->process_queued_bios); @@ -1079,10 +1079,9 @@ static int parse_features(struct dm_arg_set *as, struct multipath *m) if (!strcasecmp(queue_mode_name, "bio")) m->queue_mode = DM_TYPE_BIO_BASED; - else if (!strcasecmp(queue_mode_name, "rq")) + else if (!strcasecmp(queue_mode_name, "rq") || + !strcasecmp(queue_mode_name, "mq")) m->queue_mode = DM_TYPE_REQUEST_BASED; - else if (!strcasecmp(queue_mode_name, "mq")) - m->queue_mode = DM_TYPE_MQ_REQUEST_BASED; else { ti->error = "Unknown 'queue_mode' requested"; r = -EINVAL; @@ -1716,9 +1715,6 @@ static void multipath_status(struct dm_target *ti, status_type_t type, case DM_TYPE_BIO_BASED: DMEMIT("queue_mode bio "); break; - case DM_TYPE_MQ_REQUEST_BASED: - DMEMIT("queue_mode mq "); - break; default: WARN_ON_ONCE(true); break; @@ -1962,7 +1958,7 @@ static int multipath_busy(struct dm_target *ti) /* no paths available, for blk-mq: rely on IO mapping to delay requeue */ if (!atomic_read(&m->nr_valid_paths) && test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) - return (m->queue_mode != DM_TYPE_MQ_REQUEST_BASED); + return (m->queue_mode != DM_TYPE_REQUEST_BASED); /* Guess which priority_group will be used at next mapping time */ pg = READ_ONCE(m->current_pg); |