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

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Message-Id: <20091105082914.54D6.A69D9226@jp.fujitsu.com>
Date:	Thu,  5 Nov 2009 08:34:12 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Cc:	kosaki.motohiro@...fujitsu.com, Paul Menage <menage@...gle.com>,
	Matt Helsley <matthltc@...ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	balbir@...ux.vnet.ibm.com, containers@...ts.linux-foundation.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jan@...p1.linux-foundation.org,
	Bharata B Rao <bharata.rao@...ibm.com>,
	libcg-devel <libcg-devel@...ts.sourceforge.net>,
	Safranek <jsafrane@...hat.com>
Subject: Re: [RFC] Mount point suggestions for cgroup

> On Wed, Nov 04, 2009 at 01:25:46PM -0800, Paul Menage wrote:
> > On Wed, Nov 4, 2009 at 9:35 AM, Matt Helsley <matthltc@...ibm.com> wrote:
> > >
> > > If anything, "standardizing" the mount point(s) will likely provide a false
> > > sense of uniformity and we'll get some bad userspace scripts/tools that
> > > break when "nonstandard" usage appears. Leaving the mount point undefined
> > > forces anyone writing scripts or tools to consider whether they want to be
> > > portable and, if so, the proper way to find the cgroup hierarchies they need
> > > to manipulate.
> > 
> > Scanning /proc/mounts to find the relevant mount locations is pretty
> > simple, for code that's just wanting to use existing cgroup mounts.
> > But for the code that sets up mounts in the first place, its probably
> > helpful to have recommendations of suitable locations.
> 
> libcgroup uses a configuration file specified by the user to do this.

You are right.
But fixed mount point help to make quick cute script for sys-admin.



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