linux-kernel - Re: [PATCH] cgroup: deprecate remount option changes and "name=" mount option

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Date:	Thu, 15 Mar 2012 00:29:25 +0100
From:	Lennart Poettering <mzxreary@...inter.de>
To:	Tejun Heo <tj@...nel.org>
Cc:	Li Zefan <lizf@...fujitsu.com>,
	containers@...ts.linux-foundation.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH] cgroup: deprecate remount option changes and "name="
 mount option

On Wed, 14.03.12 14:52, Tejun Heo (tj@...nel.org) wrote:

Heya,

> * "name=" mount option: This has been broken for years before Li fixed
>   it recently.  It has very marginal usefulness (plain bind mount can
>   mostly replace it) and is quite unusual.  Take the chance and mark
>   for deprecation.

Hmm, this is not clear to me. Are you intending to remove the name=
mount option entirely, or just intend to remove that you can change it
in remounts?

systemd uses name=systemd to get its own private cgroup tree, that has
no controller bound, hence we kinda need this option. Or are you
suggesting there was an other way to get a private cgroup tree that
systemd can use for grouping and labelling things?

Lennart

-- 
Lennart Poettering - Red Hat, Inc.
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