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List: linux-cgroups
Subject: Re: [PATCH 2/2] memcg, fsnotify: no oom-kill for remote memcg charging
From: Shakeel Butt <shakeelb () google ! com>
Date: 2019-04-30 3:32:42
Message-ID: CALvZod5uXOQfeq9_03T5dv104tWwuukL0+vEAVhk-v1_A=skQQ () mail ! gmail ! com
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On Mon, Apr 29, 2019 at 5:41 PM Michal Hocko <mhocko@kernel.org> wrote:
>
> On Mon 29-04-19 10:13:32, Shakeel Butt wrote:
> [...]
> > /*
> > * For queues with unlimited length lost events are not expected and
> > * can possibly have security implications. Avoid losing events when
> > * memory is short.
> > + *
> > + * Note: __GFP_NOFAIL takes precedence over __GFP_RETRY_MAYFAIL.
> > */
>
> No, I there is no rule like that. Combining the two is undefined
> currently and I do not think we want to legitimize it. What does it even
> mean?
>
Actually the code is doing that but I agree this is not documented and
weird. I will fix this.
Shakeel
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