Re: [PATCH v2 0/4] fix unexpected type conversions and potential overflows

Michal Hocko
2026-03-26T07:14:42Z

On Wed 25-03-26 22:13:21, Qi Zheng wrote:
> From: Qi Zheng <zhengqi.arch@bytedance.com>
>
> Hi all,
>
> As Harry Yoo pointed out [1], in scenarios where massive state updates occur
> (e.g., during the reparenting of LRU folios), the values passed to memcg stat
> update functions can accumulate and exceed the upper limit of a 32-bit integer.

Is this a real problem without reparenting? In other words is this a
follow up for that work or something that we need on its own?
--
Michal Hocko
SUSE Labs