Re: [PATCH v2 1/1] mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes

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To: Rafael Aquini <aquini@xxxxxxxxxx>
Subject: Re: [PATCH v2 1/1] mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes
From: Michal Hocko <mhocko@xxxxxxxx>
Date: Mon, 10 Jan 2022 18:16:23 +0100
Cc: Yang Shi <shy828301@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Nico Pache <npache@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Linux MM <linux-mm@xxxxxxxxx>, Shakeel Butt <shakeelb@xxxxxxxxxx>, Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>, Roman Gushchin <guro@xxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, Vladimir Davydov <vdavydov.dev@xxxxxxxxx>, raquini@xxxxxxxxxx, David Hildenbrand <david@xxxxxxxxxx>
In-reply-to: <YdxoXhTqCmVrT0R5@optiplex-fbsd>
References: <20211207224013.880775-1-npache@redhat.com> <20211207224013.880775-2-npache@redhat.com> <20211207154438.c1e49a3f0b5ebc9245aac61b@linux-foundation.org> <CAHbLzkoCds-WOoN5CKas4DThk8hU65pgtMcga10QEqEmKU2f5A@mail.gmail.com> <YdxoXhTqCmVrT0R5@optiplex-fbsd>

On Mon 10-01-22 12:09:50, Rafael Aquini wrote:
[...]
> > 3. From David, fix in node_zonelist().
> > https://lore.kernel.org/all/51c65635-1dae-6ba4-daf9-db9df0ec35d8@xxxxxxxxxx/T/#u
> 
> It seems to me that (3) is the simplest and effective way to cope with this case

Did you have chance to look at http://lkml.kernel.org/r/20211214100732.26335-1-mhocko@xxxxxxxxxx
-- 
Michal Hocko
SUSE Labs

Follow-Ups:
- Re: [PATCH v2 1/1] mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes
  - From: Rafael Aquini

References:
- [PATCH v2 0/1] Dont allocate pages on a offline node
  - From: Nico Pache
- [PATCH v2 1/1] mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes
  - From: Nico Pache
- Re: [PATCH v2 1/1] mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes
  - From: Andrew Morton
- Re: [PATCH v2 1/1] mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes
  - From: Yang Shi
- Re: [PATCH v2 1/1] mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes
  - From: Rafael Aquini

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