On Fri, 2018-01-19 at 08:11 +0800, Ming Lei wrote: > On Thu, Jan 18, 2018 at 08:37:07AM -0800, Bart Van Assche wrote: > > diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c > > index f16096af879a..c59c59cfd2a5 100644 > > --- a/drivers/md/dm-rq.c > > +++ b/drivers/md/dm-rq.c > > @@ -761,6 +761,7 @@ static blk_status_t dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx, > > /* Undo dm_start_request() before requeuing */ > > rq_end_stats(md, rq); > > rq_completed(md, rq_data_dir(rq), false); > > + blk_mq_delay_run_hw_queue(hctx, 100/*ms*/); > > return BLK_STS_RESOURCE; > > } > > > > Nak. This patch fixes a regression that was introduced by you. You should know that regressions are not acceptable. If you don't agree with this patch, please fix the root cause. Bart.
