linux-kernel - [PATCH v4 0/8] memcg, cgroup: kill css

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Message-ID: <51F86D69.2030907@huawei.com>
Date:	Wed, 31 Jul 2013 09:50:33 +0800
From:	Li Zefan <lizefan@...wei.com>
To:	Tejun Heo <tj@...nel.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Glauber Costa <glommer@...allels.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Cgroups <cgroups@...r.kernel.org>, <linux-mm@...ck.org>
Subject: [PATCH v4 0/8] memcg, cgroup: kill css_id

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.

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 (8):
      cgroup: convert cgroup_ida to cgroup_idr
      cgroup: document how cgroup IDs are assigned
      cgroup: implement cgroup_from_id()
      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 |  65 ++++++--------
 kernel/cgroup.c        | 285 ++++++-----------------------------------------------------
 mm/memcontrol.c        |  68 ++++++++------
 3 files changed, 96 insertions(+), 322 deletions(-)
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