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

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Date:	Wed, 4 Nov 2009 10:11:42 -0600
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	Dave Hansen <dave@...ux.vnet.ibm.com>
Cc:	balbir@...ux.vnet.ibm.com,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	containers@...ts.linux-foundation.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Bharata B Rao <bharata.rao@...ibm.com>,
	libcg-devel <libcg-devel@...ts.sourceforge.net>,
	"menage@...gle.com" <menage@...gle.com>,
	Jan Safranek <jsafrane@...hat.com>
Subject: Re: [RFC] Mount point suggestions for cgroup

Quoting Dave Hansen (dave@...ux.vnet.ibm.com):
> On Wed, 2009-11-04 at 13:46 +0530, Balbir Singh wrote:
> > The reason I liked /dev/cgroup was because cpusets could be
> > mounted at /dev/cpuset or /dev/cgroup/cpuset. My concern with /cgroup
> > is that a ls "/" now becomes larger in size. But I'll take your vote
> > for it as +1 for /cgroup.
> 
> /dev/pts is a decent precedent for doing it under /dev, although it does
> deal with actual devices.  cgroups do not.

Hmm, on whose behalf are you making this decision?

LSB people will want to avoid using /cgroup, but I think a lot of
admins will likely prefer /cgroup (as I do).  On my systems I
always use /cgroup, but would be more likely to use /mnt/cgroup
over /dev/cgroup.

lxc (at lxc.sf.net) rightfully takes the cgroupfs from wherever it
happens to be mounted.  Do you really need a mountpoint decided?

If you do, then while I DETEST the extra typing, I think
/sys/kernel/cgroup makes most sense, since that's where you find
debugfs and securityfs.

-serge
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