[libvirt] [RFC PATCH v1 0/7] virCgroup refactor

[Hu Tao]

Hi,

This series is posted for early review.

This series refactors virCgroup. The changes are:

  - virCgroupItem is associated with a cgroup directory. The directory
    is created only when needed, and removed if no one is using it.
  - Anyone using cgroups creates instances of virCgroupItem and maintains
    their lifetime.

Please focus on patch #5, which brings the main change(virCgroupItem),
and qemu part in patch #6, which shows the usage of virCgroupItem(I've not
tested lxc part yet).

Hu Tao (7):
  call virstateCleanup to do the cleanup before libvirtd exits
  include util.h in cgroup.h
  include virterror_internal.h in threads.h
  refactor virCgroupDetectMounts and virCgroupDetectPlacement
  cgroup: refactor virCgroup
  deploy the newly introduced virCgroupItem.
  tests for virCgroup.

 daemon/libvirtd.c         |    6 +
 src/conf/domain_audit.c   |   16 +-
 src/conf/domain_audit.h   |    6 +-
 src/conf/domain_conf.h    |    5 +
 src/libvirt_private.syms  |   17 +-
 src/lxc/lxc_cgroup.c      |   91 ++-
 src/lxc/lxc_conf.h        |    2 +-
 src/lxc/lxc_driver.c      |  268 +++-----
 src/lxc/lxc_process.c     |   56 +-
 src/qemu/qemu_cgroup.c    |  287 +++------
 src/qemu/qemu_cgroup.h    |   17 +-
 src/qemu/qemu_conf.h      |    2 +-
 src/qemu/qemu_driver.c    |  478 +++++---------
 src/qemu/qemu_hotplug.c   |   44 +-
 src/qemu/qemu_migration.c |   36 +-
 src/qemu/qemu_process.c   |   29 +-
 src/util/vircgroup.c      | 1570 ++++++++++++++++++++-------------------------
 src/util/vircgroup.h      |  108 ++--
 src/util/virthread.h      |    1 +
 tests/Makefile.am         |    5 +
 tests/vircgrouptest.c     |  103 +++
 21 files changed, 1338 insertions(+), 1809 deletions(-)
 create mode 100644 tests/vircgrouptest.c

-- 
1.8.0.1.240.ge8a1f5a