On Thu, 22 Jun 2023 16:42:49 +0800, Ming Lei wrote:
> When __blkcg_rstat_flush() is called from cgroup_rstat_flush*() code
> path, interrupt is always disabled.
>
> When we start to flush blkcg per-cpu stats list in __blkg_release()
> for avoiding to leak blkcg_gq's reference in commit 20cb1c2fb756
> ("blk-cgroup: Flush stats before releasing blkcg_gq"), local irq
> isn't disabled yet, then lockdep warning may be triggered because
> the dependent cgroup locks may be acquired from irq(soft irq) handler.
>
> [...]
Applied, thanks!
[1/1] block: make sure local irq is disabled when calling __blkcg_rstat_flush
commit: 9c39b7a905d84b7da5f59d80f2e455853fea7217
Best regards,
--
Jens Axboe
