Re: [PATCH v1 3/3] cgroup: relax common ancestor restriction for direct descendants

From: Tejun Heo
Date: Thu Jul 21 2016 - 11:04:09 EST


Hello, Aleksa.

On Fri, Jul 22, 2016 at 01:07:13AM +1000, Aleksa Sarai wrote:
> > Coordinate in userspace. Request whatever is managing the cgroup
> > hierarchy to set up delegation. It's not like permission model is
> > fully contained in kernel on modern systems anyway.
>
> My experience with certain systemdaemons' cgroup handling doesn't inspire
> confidence :/ (from the runC side, we've had nothing but issues). Also, how

Fix it then. Working around bugs in userland isn't a justifiable
rationale for adding new kernel features.

> do you even boot into a cgroupv2 system with systemd (I started backporting
> patches to openSUSE, but it's still not booting)?

With devel branch, just passing in the unified hierarchy boot param
seems to work fine here.

Thanks.

--
tejun