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| author | Ming Lei <ming.lei@redhat.com> | 2021-12-03 21:15:33 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-12-03 14:51:29 -0700 |
| commit | bcc330f42f442a98d61f153d16c0b6487461ee81 (patch) | |
| tree | 33da728b0839442c866d10bea20375615a142521 | |
| parent | 704b914f15fb7daaf517e3acc4bed472b50ca19e (diff) | |
| download | linux-bcc330f42f442a98d61f153d16c0b6487461ee81.tar.bz2 | |
blk-mq: pass request queue to blk_mq_run_dispatch_ops
We have switched to allocate srcu into request queue, so it is fine
to pass request queue to blk_mq_run_dispatch_ops().
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20211203131534.3668411-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-mq.c | 9 | ||||
| -rw-r--r-- | block/blk-mq.h | 8 |
2 files changed, 9 insertions, 8 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 6a2c2704454e..24c65bb8719b 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1925,7 +1925,8 @@ static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx) */ WARN_ON_ONCE(in_interrupt()); - blk_mq_run_dispatch_ops(hctx, blk_mq_sched_dispatch_requests(hctx)); + blk_mq_run_dispatch_ops(hctx->queue, + blk_mq_sched_dispatch_requests(hctx)); } static inline int blk_mq_first_mapped_cpu(struct blk_mq_hw_ctx *hctx) @@ -2047,7 +2048,7 @@ void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) * And queue will be rerun in blk_mq_unquiesce_queue() if it is * quiesced. */ - blk_mq_run_dispatch_ops(hctx, + blk_mq_run_dispatch_ops(hctx->queue, need_run = !blk_queue_quiesced(hctx->queue) && blk_mq_hctx_has_pending(hctx)); @@ -2466,7 +2467,7 @@ static blk_status_t blk_mq_request_issue_directly(struct request *rq, bool last) blk_status_t ret; struct blk_mq_hw_ctx *hctx = rq->mq_hctx; - blk_mq_run_dispatch_ops(hctx, + blk_mq_run_dispatch_ops(rq->q, ret = __blk_mq_try_issue_directly(hctx, rq, true, last)); return ret; } @@ -2780,7 +2781,7 @@ void blk_mq_submit_bio(struct bio *bio) (q->nr_hw_queues == 1 || !is_sync))) blk_mq_sched_insert_request(rq, false, true, true); else - blk_mq_run_dispatch_ops(rq->mq_hctx, + blk_mq_run_dispatch_ops(rq->q, blk_mq_try_issue_directly(rq->mq_hctx, rq)); } diff --git a/block/blk-mq.h b/block/blk-mq.h index 792f0b29c6eb..d62004e2d531 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -375,9 +375,9 @@ static inline bool hctx_may_queue(struct blk_mq_hw_ctx *hctx, } /* run the code block in @dispatch_ops with rcu/srcu read lock held */ -#define blk_mq_run_dispatch_ops(hctx, dispatch_ops) \ +#define blk_mq_run_dispatch_ops(q, dispatch_ops) \ do { \ - if (!((hctx)->flags & BLK_MQ_F_BLOCKING)) { \ + if (!blk_queue_has_srcu(q)) { \ rcu_read_lock(); \ (dispatch_ops); \ rcu_read_unlock(); \ @@ -385,9 +385,9 @@ do { \ int srcu_idx; \ \ might_sleep(); \ - srcu_idx = srcu_read_lock((hctx)->queue->srcu); \ + srcu_idx = srcu_read_lock((q)->srcu); \ (dispatch_ops); \ - srcu_read_unlock((hctx)->queue->srcu, srcu_idx); \ + srcu_read_unlock((q)->srcu, srcu_idx); \ } \ } while (0) |