On Wed, May 15, 2024 at 09:31:56AM +0800, Ming Lei wrote:
> Since commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()"),
> each iostat instance is added to blkcg percpu list, so blkcg_reset_stats()
> can't reset the stat instance by memset(), otherwise the llist may be
> corrupted.
>
> Fix the issue by only resetting the counter part.
>
> Cc: Tejun Heo <tj@xxxxxxxxxx>
> Cc: Waiman Long <longman@xxxxxxxxxx>
> Cc: Jay Shin <jaeshin@xxxxxxxxxx>
> Fixes: 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()")
> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Thanks.
--
tejun
