Re: [PATCH] mm: memcg: use rstat for non-hierarchical stats

[Yosry Ahmed]

On Tue, Jul 25, 2023 at 10:43 AM Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Tue, 25 Jul 2023 10:04:35 -0400 Johannes Weiner <hannes@xxxxxxxxxxx> wrote:
>
> > > Signed-off-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
> >
> > Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> >
> > But I want to be clear: this isn't a regression fix. It's a new
> > performance optimization for the deprecated cgroup1 code. And it comes
> > at the cost of higher memory footprint for both cgroup1 AND cgroup2.
>
> Thanks.
>
> Yosry, could you please send along a suitably modified changelog?

I will send a v2 once we agree on the history story and whether or not
this fixes a regression.

Thanks!