Commit 6700a678 authored Apr 16, 2014 by Jens Axboe

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



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>

parent fd1270d5

block/blk-mq.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -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,