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SubjectRe: [PATCH] Revert "mm: add nodes= arg to memory.reclaim"
On Fri 16-12-22 10:18:20, Andrew Morton wrote:
> On Fri, 16 Dec 2022 10:54:16 +0100 Michal Hocko <mhocko@suse.com> wrote:
>
> > I have noticed that the patch made it into Linus tree already. Can we
> > please revert it because the semantic is not really clear and we should
> > really not create yet another user API maintenance problem.
>
> Well dang. I was waiting for the discussion to converge, blissfully
> unaware that the thing was sitting in mm-stable :( I guess the
>
> Acked-by: Michal Hocko <mhocko@suse.com>
> Acked-by: Shakeel Butt <shakeelb@google.com>
> Acked-by: Muchun Song <songmuchun@bytedance.com>
>
> fooled me.

Hmm, as pointed out in http://lkml.kernel.org/r/Y5bsmpCyeryu3Zz1@dhcp22.suse.cz
I've failed to see through all the consequences of the implementation.
SO my bad here to add my ack before fully understanding all the
implications.

> I think it's a bit premature to revert at this stage. Possibly we can
> get to the desired end state by modifying the existing code. Possibly
> we can get to the desired end state by reverting this and by adding
> something new.

Sure if we can converge to a proper implementation during the rc phase
then it would be ok. I cannot speak for others but at least for me
upcoming 2 weeks would be mostly offline so I cannot really contribute
much. A revert would be much more easier from the coordination POV IMHO.

Also I do not think there is any strong reason to rush this in. I do not
really see any major problems to have this extension in 6.2

--
Michal Hocko
SUSE Labs

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