On Mon, Jan 22, 2018 at 11:35:48AM +0800, Ming Lei wrote: > Except for DM_MAPIO_REQUEUE, map_request() handles other dispatch exception > already, so return BLK_STS_* from map_request() directly. > > Another change is that if dm_dispatch_clone_request() returns > BLK_STS_DEV_RESOURCE from underlying queue, this status is returned > to blk-mq too, since underlying queue's RESTART can handle dm-rq's > RESTART in this case. Hammm, this is obvious wrong, :-( -- Ming
