linux-kernel - Re: [PATCH] cgroupfs: create /sys/fs/cgroup to mount cgroupfs on

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Message-ID: <20100722183614.GA5443@suse.de>
Date:	Thu, 22 Jul 2010 11:36:15 -0700
From:	Greg KH <gregkh@...e.de>
To:	Paul Menage <menage@...gle.com>
Cc:	Li Zefan <lizf@...fujitsu.com>,
	Lennart Poettering <lennart@...ttering.net>,
	Kay Sievers <kay.sievers@...y.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Ben Blum <bblum@...rew.cmu.edu>,
	containers@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cgroupfs: create /sys/fs/cgroup to mount cgroupfs on

On Thu, Jul 22, 2010 at 11:31:07AM -0700, Paul Menage wrote:
> On Thu, Jul 22, 2010 at 11:26 AM, Greg KH <gregkh@...e.de> wrote:
> > We really shouldn't be asking userspace to create new root filesystems.
> > So follow along with all of the other in-kernel filesystems, and provide
> > a mount point in sysfs.
> >
> > For cgroupfs, this should be in /sys/fs/cgroup/  This change provides
> > that mount point when the cgroup filesystem is registered in the kernel.
> 
> But cgroups will typically have multiple mounts, with different
> resource controllers/options on each mount. That doesn't really fit in
> with this scheme.

Really?  I see systems mounting it at /cgroups/ in the filesystem today.
Where are you expecting it to be mounted at?

thanks,

greg k-h
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