linux-kernel - Re: [RFC] Mount point suggestions for cgroup

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Message-ID: <4AF1AF68.40704@free.fr>
Date:	Wed, 04 Nov 2009 17:44:24 +0100
From:	Daniel Lezcano <daniel.lezcano@...e.fr>
To:	balbir@...ux.vnet.ibm.com
CC:	libcg-devel <libcg-devel@...ts.sourceforge.net>,
	"menage@...gle.com" <menage@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Jan Safranek <jsafrane@...hat.com>,
	containers@...ts.linux-foundation.org,
	Bharata B Rao <bharata.rao@...ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Subject: Re: [RFC] Mount point suggestions for cgroup

Balbir Singh wrote:
> Hi, All,
>
> We've been having a discussion as to what would be the right place to
> mount the cgroup filesystem. Jan has been proactively looking into
> this. The FHS has no recommendation since cgroup filesystem came in
> much later.
>
> The options are
>
> 1. /dev/cgroup
> 2. /cgroup
> 3. Some place under /sys
>
> The problem with (2) is that it is quite non-standard and pollutes the
> root directory. (3) requires some basic support to create a directory
> for cgroup under /sys. (1) seems the most obvious choice since cpusets
> were mounted under /dev/cpuset, but /dev is controlled by udev.
>
> Given the three choices or any other suggestions, is there a general
> preference as to where we can mount it? The goal is to standardize
> the mount point (if possible).
>   
Why the mount point has to be standardized ?

> BTW, the mounting is expected to be done using cgconfigparser present
> in libcgroup.
>   
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