[libvirt] [RFC][PATCH] lxc: fix for ns cgroups subsystem

[Daniel Veillard]

On Mon, May 11, 2009 at 06:01:07PM +0900, Ryota Ozaki wrote:
> Hi,
> I've updated the patch. The change includes support for multiple mount
> points of cgroups that I didn't cope with in the previous patch.
> 
> Through the work, I found a bit messy problem. Current lxc controller writes
> pid in a 'tasks' file multiple times if one mount point has multiple subsystems.
> It is bad because the first write changes the cgroups path of a controller, and
> then the second write points a missing file like
> $CGROUPS_MOUNTPOINT/<path_to_domain>/<path_to_domain>/tasks where
> the correct file is $CGROUPS_MOUNTPOINT/<path_to_domain>/tasks.
> I did workaround this problem with a tricky way by truncating the
> duplicated path.
> We probably need a more feasible solution.
> 
> Note that this patch intends a proof of concept to be clear the correct way
> to go and thus it remains a couple of awkward codes. Of course the codes
> should be removed if we find the correct way.

  Just to make sure, this is not ready, right ?
We freeze for libvirt-0.6.4 this week-end,

Daniel

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