diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2015-03-12 06:56:38 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-03-13 17:28:33 +0300 |
| commit | b94ec296403e99d5ac9a8c48332cec4118d44b94 (patch) | |
| tree | 436fc728ffbc9d83c3a1876b9fc961e6906f6634 | |
| parent | b62c21b71f08b7a4bfd025616ff1da2913a82904 (diff) | |
| download | linux-b94ec296403e99d5ac9a8c48332cec4118d44b94.tar.xz | |
blk-mq: export blk_mq_run_hw_queues
Rename blk_mq_run_queues to blk_mq_run_hw_queues, add async argument,
and export it.
DM's suspend support must be able to run the queue without starting
stopped hw queues.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | block/blk-mq.c | 8 | ||||
| -rw-r--r-- | include/linux/blk-mq.h | 1 |
2 files changed, 5 insertions, 4 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 3000121840bb..06614ce0f475 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -33,7 +33,6 @@ static DEFINE_MUTEX(all_q_mutex); static LIST_HEAD(all_q_list); static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx); -static void blk_mq_run_queues(struct request_queue *q); /* * Check if any of the ctx's have pending work in this hardware queue @@ -118,7 +117,7 @@ void blk_mq_freeze_queue_start(struct request_queue *q) if (freeze) { percpu_ref_kill(&q->mq_usage_counter); - blk_mq_run_queues(q); + blk_mq_run_hw_queues(q, false); } } EXPORT_SYMBOL_GPL(blk_mq_freeze_queue_start); @@ -904,7 +903,7 @@ void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) &hctx->run_work, 0); } -static void blk_mq_run_queues(struct request_queue *q) +void blk_mq_run_hw_queues(struct request_queue *q, bool async) { struct blk_mq_hw_ctx *hctx; int i; @@ -915,9 +914,10 @@ static void blk_mq_run_queues(struct request_queue *q) test_bit(BLK_MQ_S_STOPPED, &hctx->state)) continue; - blk_mq_run_hw_queue(hctx, false); + blk_mq_run_hw_queue(hctx, async); } } +EXPORT_SYMBOL(blk_mq_run_hw_queues); void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx) { diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 9a75c88e8908..ebfe707cf722 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -220,6 +220,7 @@ void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx); void blk_mq_stop_hw_queues(struct request_queue *q); void blk_mq_start_hw_queues(struct request_queue *q); void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async); +void blk_mq_run_hw_queues(struct request_queue *q, bool async); void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs); void blk_mq_tag_busy_iter(struct blk_mq_hw_ctx *hctx, busy_iter_fn *fn, void *priv); |