[libvirt] libvirt & cgroup support - why are vm cgroups created under libvirt cgroup?

Hello, I'd like to use cgroups for resources counting and management, but I'd like to use blkio-cgroup controller as well. I created simple patch for libvirt adding support for it (and I'd like to submit the patch once it's tested properly). But it seems that blkio-cgroup controller doesn't support cgroups inside cgroups (the way libvirt uses them - /cgroup/libvirt/vmxxx). Is there some possibility libvirt would be adjusted to support separate toplevel cgroup for each vm so blkio-cgroup could be used? Or is there some important reason for the way it works now? thanks a lot in advance for any reply with best regards nik -- ------------------------------------- Ing. Nikola CIPRICH LinuxBox.cz, s.r.o. 28. rijna 168, 709 01 Ostrava tel.: +420 596 603 142 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: servis(a)linuxbox.cz -------------------------------------