On Thu, 02 Feb 2023 10:18:04 +0800, Ming Lei wrote:
> We source root cgroup stats from the system-wide stats, see blkcg_print_stat
> and blkcg_rstat_flush, so don't update io state for root cgroup.
>
> Fixes blkg leak issue introduced in commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()")
> which starts to grab blkg's reference when adding iostat_cpu into percpu
> blkcg list, but this state won't be consumed by blkcg_rstat_flush() where
> the blkg reference is dropped.
>
> [...]
Applied, thanks!
[1/1] blk-cgroup: don't update io stat for root cgroup
commit: 0416f3be58c6b1ea066cd52e354b857693feb01e
Best regards,
--
Jens Axboe
