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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2018-01-19 08:58:55 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-01-19 12:52:01 -0700 |
| commit | ae943d20624de0a6aac7dd0597616dce2c498029 (patch) | |
| tree | 9fa3d4d76dbfce384e11f6119a44f16885c20fdb /block/blk-mq.c | |
| parent | c77ff7fd03ddca8face268c4cf093c0edf4bcf1f (diff) | |
| download | op-kernel-dev-ae943d20624de0a6aac7dd0597616dce2c498029.zip op-kernel-dev-ae943d20624de0a6aac7dd0597616dce2c498029.tar.gz | |
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>
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 0fc6c95..43e7449 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -785,7 +785,7 @@ EXPORT_SYMBOL(blk_mq_add_to_requeue_list); void blk_mq_kick_requeue_list(struct request_queue *q) { - kblockd_schedule_delayed_work(&q->requeue_work, 0); + kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work, 0); } EXPORT_SYMBOL(blk_mq_kick_requeue_list); @@ -1401,9 +1401,8 @@ static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async, put_cpu(); } - kblockd_schedule_delayed_work_on(blk_mq_hctx_next_cpu(hctx), - &hctx->run_work, - msecs_to_jiffies(msecs)); + kblockd_mod_delayed_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work, + msecs_to_jiffies(msecs)); } void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs) |
