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

From: "Daniel P. Berrange"<berrange(a)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(a)redhat.com> ---