On Tue, 26 Oct 2021 18:12:04 +0800, Ming Lei wrote:
> Before removing disk from sysfs, userspace still may change queue via
> sysfs, such as switching elevator or setting wbt latency, both may
> reinitialize wbt, then the warning in blk_free_queue_stats() will be
> triggered since rq_qos_exit() is moved to del_gendisk().
>
> Fixes the issue by moving draining queue & tearing down after disk is
> removed from sysfs, at that time no one can come into queue's
> store()/show().
>
> [...]
Applied, thanks!
[1/1] block: drain queue after disk is removed from sysfs
commit: d308ae0d299a6bb15be4efb91849582d19c23213
Best regards,
--
Jens Axboe
