[dm-devel] [PATCH 3/5] dm-rq: return BLK_STS_* from map_request()

[Ming Lei]

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