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Re: [libvirt] [PATCH v2] Remount cgroups controllers after setting up new /sys in LXC



On 05/16/2012 06:38 AM, Daniel P. Berrange wrote:
From: "Daniel P. Berrange"<berrange redhat com>

Normal practice is for cgroups controllers to be mounted at
/sys/fs/cgroup. When setting up a container, /sys is mounted
with a new sysfs instance, thus we must re-mount all the
cgroups controllers. The complexity is that we must mount
them in the same layout as the host OS. ie if 'cpu' and 'cpuacct'
were mounted at the same location in the host we must preserve
this in the container. Also if any controllers are co-located
we must setup symlinks from the individual controller name to
the co-located mount-point

Signed-off-by: Daniel P. Berrange<berrange redhat com>
---
ACK


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