netdev - Re: [PATCH net] net-memcg: avoid stalls when under memory pressure

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Message-ID: <CALvZod6TXxp9nXuPcWD1Vhi6jvxyWeAOrwXvDfTTxYC9RviWhQ@mail.gmail.com>
Date:   Fri, 21 Oct 2022 11:53:34 -0700
From:   Shakeel Butt <shakeelb@...gle.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
        davem@...emloft.net, pabeni@...hat.com, cgroups@...r.kernel.org,
        roman.gushchin@...ux.dev, weiwan@...gle.com, ncardwell@...gle.com,
        ycheng@...gle.com
Subject: Re: [PATCH net] net-memcg: avoid stalls when under memory pressure

On Fri, Oct 21, 2022 at 10:40 AM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Fri, 21 Oct 2022 09:34:20 -0700 Shakeel Butt wrote:
> > > > How about just using gfp_any() and we can remove gfp_memcg_charge()?
> > >
> > > How about keeping gfp_memcg_charge() and adding a comment on its intent ?
> > >
> > > gfp_any() is very generic :/
>
> That was my thinking, and I'm not sure what I could put in a comment.
> Wouldn't it be some mix of words 'flags', 'memory', 'cgroup' and
> 'charge'... which is just spelling out the name of the function?
>
> I mean:
>
>         /* Alloc flags for passing to cgroup socket memory charging */
>
> does not add much value, right?

Yeah I agree. Let's just go with the original patch.

You can add:

Acked-by: Shakeel Butt <shakeelb@...gle.com>