On Fri, Aug 03, 2018 at 12:08:54AM +0000, Bart Van Assche wrote: > On Fri, 2018-08-03 at 07:53 +0800, Ming Lei wrote: > > blk_pm_add_request() calls pm_request_resume() for waking up device, but > > it is wrong because it is async request, which can't guarantee device > > will be ready before calling .queue_rq(). > > That's a longstanding issue and not something that has been introduced by this > patch series. Hence patch 6/9 that issues a warning if pm_request_resume() > would > be called.
It is introduced by your patch, please see blk_pm_allow_request(). Thanks, Ming
