diff options
Diffstat (limited to 'block/elevator.c')
| -rw-r--r-- | block/elevator.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/block/elevator.c b/block/elevator.c index 9430cde13d1a..7c3ba80e5ff4 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -598,13 +598,19 @@ void elevator_init_mq(struct request_queue *q) * drain any dispatch activities originated from passthrough * requests, then no need to quiesce queue which may add long boot * latency, especially when lots of disks are involved. + * + * Disk isn't added yet, so verifying queue lock only manually. */ - blk_mq_freeze_queue(q); + blk_freeze_queue_start_non_owner(q); + blk_freeze_acquire_lock(q, true, false); + blk_mq_freeze_queue_wait(q); + blk_mq_cancel_work_sync(q); err = blk_mq_init_sched(q, e); - blk_mq_unfreeze_queue(q); + blk_unfreeze_release_lock(q, true, false); + blk_mq_unfreeze_queue_non_owner(q); if (err) { pr_warn("\"%s\" elevator initialization failed, " @@ -704,15 +710,15 @@ static int elevator_change(struct request_queue *q, const char *elevator_name) return ret; } -int elv_iosched_load_module(struct gendisk *disk, const char *buf, - size_t count) +void elv_iosched_load_module(struct gendisk *disk, const char *buf, + size_t count) { char elevator_name[ELV_NAME_MAX]; struct elevator_type *found; const char *name; if (!elv_support_iosched(disk->queue)) - return -EOPNOTSUPP; + return; strscpy(elevator_name, buf, sizeof(elevator_name)); name = strstrip(elevator_name); @@ -723,8 +729,6 @@ int elv_iosched_load_module(struct gendisk *disk, const char *buf, if (!found) request_module("%s-iosched", name); - - return 0; } ssize_t elv_iosched_store(struct gendisk *disk, const char *buf, |