[libvirt] [PATCH v2 0/5] cgroup refactor

This series refactors cgroup code to: - provide lazy creation of cgroup directories, despite of what level they are. - remove cgroup directories if no one is using the corresponding virCgroup. This series is splitted in a manner for easier review. Patch 2 is the main implementation. Patch 3, 4, 5 should have been squashed into one in order to build, but harder to review. Hu Tao (5): refactor virCgroupDetectMounts and virCgroupDetectPlacement cgroup: refactor virCgroup cgroup: replace old cgroup qemu: replace old cgroup lxc: replace old cgroup src/conf/domain_conf.h | 5 + src/libvirt_private.syms | 7 +- src/lxc/lxc_cgroup.c | 40 +- src/lxc/lxc_cgroup.h | 2 +- src/lxc/lxc_controller.c | 31 +- src/lxc/lxc_driver.c | 177 +++---- src/lxc/lxc_process.c | 19 +- src/qemu/qemu_cgroup.c | 162 +++--- src/qemu/qemu_cgroup.h | 3 +- src/qemu/qemu_driver.c | 351 +++++-------- src/qemu/qemu_hotplug.c | 21 +- src/qemu/qemu_migration.c | 20 +- src/qemu/qemu_process.c | 7 +- src/util/vircgroup.c | 1263 +++++++++++++++++++++------------------------ src/util/vircgroup.h | 19 +- 15 files changed, 921 insertions(+), 1206 deletions(-) -- 1.8.0.1.240.ge8a1f5a