diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-04-13 09:06:49 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-04-13 15:57:18 +0300 |
| commit | cd735e11130d4c84a073e1056aa019ca0f3305f9 (patch) | |
| tree | a52ca4eee82889ccc48a275432b5caf75b2d5ea2 /block/blk-mq.c | |
| parent | c20a1a2c1a9f5b1081121cd18be444e7610b0c6f (diff) | |
| download | linux-cd735e11130d4c84a073e1056aa019ca0f3305f9.tar.xz | |
blk-mq: move the blk_mq_hctx_stopped check in __blk_mq_delay_run_hw_queue
For the in-context dispatch, blk_mq_hctx_stopped is alredy checked in
blk_mq_sched_dispatch_requests under blk_mq_run_dispatch_ops() protection.
For the async dispatch case having a check before scheduling the work
still makes sense to avoid needless workqueue scheduling, so just keep it
for that case.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230413060651.694656-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index ad13d2aa948b..2213117bb1b5 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2223,9 +2223,6 @@ select_cpu: static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async, unsigned long msecs) { - if (unlikely(blk_mq_hctx_stopped(hctx))) - return; - if (!async && !(hctx->flags & BLK_MQ_F_BLOCKING)) { if (cpumask_test_cpu(raw_smp_processor_id(), hctx->cpumask)) { __blk_mq_run_hw_queue(hctx); @@ -2233,6 +2230,8 @@ static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async, } } + if (unlikely(blk_mq_hctx_stopped(hctx))) + return; kblockd_mod_delayed_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work, msecs_to_jiffies(msecs)); } |