linux-kernel - Re: [PATCH v4 07/16] memcg: enable accounting for new namesapces and struct nsproxy

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Message-ID: <20210507150312.pb4wnxyfw3nwl4yi@wittgenstein>
Date:   Fri, 7 May 2021 17:03:12 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Vasily Averin <vvs@...tuozzo.com>
Cc:     cgroups@...r.kernel.org, Michal Hocko <mhocko@...nel.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Roman Gushchin <guro@...com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Tejun Heo <tj@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Zefan Li <lizefan.x@...edance.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kirill Tkhai <ktkhai@...tuozzo.com>,
        Serge Hallyn <serge@...lyn.com>,
        Andrei Vagin <avagin@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 07/16] memcg: enable accounting for new namesapces and
 struct nsproxy

On Wed, Apr 28, 2021 at 09:52:43AM +0300, Vasily Averin wrote:
> Container admin can create new namespaces and force kernel to allocate
> up to several pages of memory for the namespaces and its associated
> structures.
> Net and uts namespaces have enabled accounting for such allocations.
> It makes sense to account for rest ones to restrict the host's memory
> consumption from inside the memcg-limited container.
> 
> Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
> ---

Serge's ack reminded me of this. Looks good if the mm folks are fine
with this too,
Acked-by: Christian Brauner <christian.brauner@...ntu.com>