[PATCH v5 0/5] memcg, cgroup: kill css_id

[Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>]

Hi Andrew,

All the cgroup preparation patches are in cgroup tree now, and these
remaining patches can be routed by mm tree.

===========

This patchset converts memcg to use cgroup->id, and then we can remove
cgroup css_id.

As we've removed memcg's own refcnt, converting memcg to use cgroup->id
is very straight-forward.

The patchset is based on Tejun's cgroup tree.

v5:
- rebased against mmotm 2013-08-07-16-55

v4:
- make cgroup_from_id() inline and check if cgroup_mutex is held.
- add a comment for idr_remove() in cgroup_offline)fn().

v2->v3:
- some minor cleanups suggested by Michal.
- fixed the call to idr_alloc() in cgroup_init() in the first patch.

Li Zefan (5):
      memcg: convert to use cgroup_is_descendant()
      memcg: convert to use cgroup id
      memcg: fail to create cgroup if the cgroup id is too big
      memcg: stop using css id
      cgroup: kill css_id

--
 include/linux/cgroup.h |  37 ----------
 kernel/cgroup.c        | 252 +---------------------------------------------------------------
 mm/memcontrol.c        |  69 +++++++++++-------
 3 files changed, 43 insertions(+), 315 deletions(-)