From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [lxc-devel] cgroup management daemon
Date: Wed, 4 Dec 2013 18:06:32 -0500
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To: Serge Hallyn <serge.hallyn-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>
Cc: Tim Hockin <thockin-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, "Serge E. Hallyn" <serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>, =?iso-8859-1?Q?St=E9phane?= Graber <stgraber-/Ni+VN9Krahg9hUCZPvPmw@public.gmane.org>, Victor Marmol <vmarmol-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, Rohit Jnagal <jnagal-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, lxc-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org

On Wed, Dec 04, 2013 at 09:54:37AM -0600, Serge Hallyn wrote:
> Quoting Tim Hockin (thockin-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org):
> > If this daemon works as advertised, we will explore moving all write
> > traffic to use it.  I still have concerns that this can't handle read
> > traffic at the scale we need.
> > 
> > Tejun,  I am not sure why chown came back into the conversation.  This
> > is a replacement for that.
> 
> Because the daemon is chowning directories and files.  That's how
> the daemon decides whether clients have access.

Ah, okay, so the manager is just using filesystem metadata for
bookkeeping.  That should be fine.  Please note that cgroup filesystem
also supports xattr and AFAIK systemd is already making use of it.

Thanks.

-- 
tejun