Messages in this thread Patch in this message | | | From | Jens Axboe <> | Subject | [PATCH 1/7] blk-mq: add blk_mq_start_stopped_hw_queue() | Date | Thu, 8 Dec 2016 13:13:19 -0700 |
| |
We have a variant for all hardware queues, but not one for a single hardware queue.
Signed-off-by: Jens Axboe <axboe@fb.com> --- block/blk-mq.c | 18 +++++++++++------- include/linux/blk-mq.h | 1 + 2 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c index 90db5b490df9..b216746be9d3 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1064,18 +1064,22 @@ void blk_mq_start_hw_queues(struct request_queue *q) } EXPORT_SYMBOL(blk_mq_start_hw_queues); +void blk_mq_start_stopped_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) +{ + if (!blk_mq_hctx_stopped(hctx)) + return; + + clear_bit(BLK_MQ_S_STOPPED, &hctx->state); + blk_mq_run_hw_queue(hctx, async); +} + void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async) { struct blk_mq_hw_ctx *hctx; int i; - queue_for_each_hw_ctx(q, hctx, i) { - if (!blk_mq_hctx_stopped(hctx)) - continue; - - clear_bit(BLK_MQ_S_STOPPED, &hctx->state); - blk_mq_run_hw_queue(hctx, async); - } + queue_for_each_hw_ctx(q, hctx, i) + blk_mq_start_stopped_hw_queue(hctx, async); } EXPORT_SYMBOL(blk_mq_start_stopped_hw_queues); diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 35a0af5ede6d..87e404aae267 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -231,6 +231,7 @@ void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx); 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_queue(struct blk_mq_hw_ctx *hctx, bool async); 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); -- 2.7.4
| |