Hi Ming On 10/29/18 10:49 AM, Ming Lei wrote: > On Sat, Oct 27, 2018 at 12:01:09AM +0800, Jianchao Wang wrote: >> Merge blk_mq_try_issue_directly and __blk_mq_try_issue_directly >> into one interface which is able to handle the return value from >> .queue_rq callback. Due to we can only issue directly w/o io >> scheduler, so remove the blk_mq_get_driver_tag. > > It isn't correct for dm-rq, see blk_insert_cloned_request(). > Yes, got it. when the original requests are issued to the underlying paths as cloned requests, they should not pass through the io scheduler. Thanks Jianchao
