blk-mq: Avoid that blk_mq_delay_run_hw_queue() introduces unintended delays
Make sure that calling blk_mq_run_hw_queue() or blk_mq_kick_requeue_list() triggers a queue run without delay even if blk_mq_delay_run_hw_queue() has been called recently and if its delay has not yet expired. Reviewed-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -785,7 +785,7 @@ EXPORT_SYMBOL(blk_mq_add_to_requeue_list);
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void blk_mq_kick_requeue_list(struct request_queue *q)
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{
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kblockd_schedule_delayed_work(&q->requeue_work, 0);
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kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work, 0);
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}
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EXPORT_SYMBOL(blk_mq_kick_requeue_list);
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@ -1401,9 +1401,8 @@ static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async,
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put_cpu();
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}
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kblockd_schedule_delayed_work_on(blk_mq_hctx_next_cpu(hctx),
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&hctx->run_work,
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msecs_to_jiffies(msecs));
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kblockd_mod_delayed_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work,
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msecs_to_jiffies(msecs));
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}
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void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs)
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