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From: "Serge E. Hallyn" <serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
Subject: Re: CGroup Namespaces (v4)
Date: Tue, 17 Nov 2015 20:30:22 -0600
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To: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Cc: Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org>, Linux Containers <containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>, LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, LXC development mailing-list <lxc-devel-cunTk1MwBs9qMoObBWhMNEqPaTDuhLve2LY78lusg7I@public.gmane.org>, "open list:ABI/API" <linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, cgroups mailinglist <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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On Mon, Nov 16, 2015 at 04:24:27PM -0600, Eric W. Biederman wrote:
> Similary have you considered what it required to be able to safely set
> FS_USERNS_MOUNT?

I pushed the one patch which I feel is needed to my branch (it's also
included in another reply).  Aditya had already added FS_USERNS_MOUNT to
the cgroup fs flags, so I think we're now all set.  I can start
unprivileged containers which mount cgroupfs (which make systemd happy).

-serge