From 6700a678c02e47b6d50c51da2a46ff80efedb8c7 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 16 Apr 2014 10:38:35 -0600 Subject: [PATCH] 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 --- block/blk-mq.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 1fa01ff0f9bc..b59a8d027dff 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -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, -- 2.39.2