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blk-mq: kill preempt disable/enable in blk_mq_work_fn()

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blk_mq_work_fn() is always invoked off the bounded workqueues,
so it can happily preempt among the queues in that set without
causing any issues for blk-mq.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe 2014-04-16 10:38:35 -06:00
parent fd1270d5df
commit 6700a678c0
1 changed files with 0 additions and 2 deletions
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2
block/blk-mq.c
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@ -714,9 +714,7 @@ static void blk_mq_work_fn(struct work_struct *work)
hctx = container_of(work, struct blk_mq_hw_ctx, delayed_work.work);
preempt_disable();
__blk_mq_run_hw_queue(hctx);
preempt_enable();
}
static void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx,