On Mon, Apr 01, 2019 at 09:50:12AM +0800, Dongli Zhang wrote:
>
>
> On 3/31/19 11:09 AM, Ming Lei wrote:
> > Now freeing dispatch resource is moved to queue's release handler,
> > we don't need to worry about the race between blk_cleanup_queue and
> > run queue any more.
> >
> > So don't drain in-progress dispatch in blk_cleanup_queue().
>
> Unless this direction is not followed, how about we mention that this is revert
> of prior two fixes (which are not required any longer) so that people working on
> backport would feel much more easier to track the issue.
>
> c2856ae2f315 ("blk-mq: quiesce queue before freeing queue")
> 1311326cf4755c7 ("blk-mq: avoid to synchronize rcu inside blk_cleanup_queue()")
OK, will mention that in V2.
Thanks,
Ming
