linux-kernel - Re: [PATCH 0/3] enable memcg accounting for kernfs objects

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Message-ID: <YvKfxGvg5/J0+QoD@slm.duckdns.org>
Date:   Tue, 9 Aug 2022 07:56:20 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Michal Koutný <mkoutny@...e.com>
Cc:     Vasily Averin <vvs@...nvz.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-kernel@...r.kernel.org, kernel@...nvz.org,
        Shakeel Butt <shakeelb@...gle.com>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Muchun Song <songmuchun@...edance.com>,
        Michal Hocko <mhocko@...e.com>,
        Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH 0/3] enable memcg accounting for kernfs objects

Hello,

On Tue, Aug 09, 2022 at 07:49:34PM +0200, Michal Koutný wrote:
> On Tue, Aug 09, 2022 at 07:31:31AM -1000, Tejun Heo <tj@...nel.org> wrote:
> > I'm not quite sure whether following the usual "charge it to the allocating
> > task's cgroup" is the best way to go about it. I wonder whether it'd be
> > better to attach it to the new cgroup's nearest ancestor with memcg enabled.
> 
> See also 
> https://lore.kernel.org/r/YnBLge4ZQNbbxufc@blackbook/
> and
> https://lore.kernel.org/r/20220511163439.GD24172@blackbody.suse.cz/

Ah, thanks. Vasily, can you please include some summary of the discussions
and the rationales for the path taken in the commit message?

Thanks.

-- 
tejun