linux-kernel - Re: [PATCH v2 3/3] mm: memcontrol: recursive memory.low protection

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Message-ID: <20200213155249.GI88887@mtj.thefacebook.com>
Date:   Thu, 13 Feb 2020 10:52:49 -0500
From:   Tejun Heo <tj@...nel.org>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Roman Gushchin <guro@...com>, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH v2 3/3] mm: memcontrol: recursive memory.low protection

Hello,

On Thu, Feb 13, 2020 at 04:47:31PM +0100, Michal Hocko wrote:
> Well, I would tend to agree but I can see an existing cgroup hierarchy
> imposed by systemd and that is more about "logical" organization of
> processes based on their purpose than anything resembling resources.
> So what can we do about that to make it all work?

systemd right now isn't configuring any resource control by default,
so I'm not sure why it is relevant in this discussion. You gotta
change the layout to configure resource control no matter what and
it's pretty easy to do. systemd folks are planning to integrate higher
level resource control features, so my expectation is that the default
layout is gonna change as it develops.

Thanks.

-- 
tejun