On Mon, Jun 9, 2014 at 11:10 PM, Jens Axboe <axboe at fb.com> wrote: > On 2014-06-09 09:07, Ming Lei wrote: > > You are right, I didn't get to the bottom of the thread first. > Might be better to just have ->start_time set always, regardless of io stats > being enabled or not. Yes, just like what non-mq code did. Thanks, -- Ming Lei