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Date:	Thu,  3 Jan 2013 13:44:03 -0800
From:	Tejun Heo <tj@...nel.org>
To:	lizefan@...wei.com, paul@...lmenage.org, glommer@...allels.com
Cc:	containers@...ts.linux-foundation.org, cgroups@...r.kernel.org,
	peterz@...radead.org, mhocko@...e.cz, linux-kernel@...r.kernel.org
Subject: [PATCHSET] cpuset: drop cpuset->stack_list and ->parent, take#2

Hello, guys.

This is the second take of "drop cpuset->stack_list and ->parent"
patchset.  Other than being rebased on top of v3.8-rc2 + "cpuset:
decouple cpuset locking from cgroup core, take#2", nothing really has
changed.

The original patchset description follows.

cpuset implements its own descendant iteration using
cpuset->stack_list and has its own ->parent pointer.  There's nothing
cpuset specific about descendant walking or finding the parent.  This
patchset makes cpuset use cgroup generic API instead.

 0001-cpuset-implement-cgroup_rightmost_descendant.patch
 0002-cpuset-replace-cpuset-stack_list-with-cpuset_for_eac.patch
 0003-cpuset-remove-cpuset-parent.patch

0001 implements cgroup_rightmost_descendant() which can be used to
skip subtree during pre-order tree walk.  Michal, maybe memcg can use
it too?

0002 replaces cpuset->stack_list with generic
for_each_descendasnt_pre().

0003 replaces cpuset->parent with cgroup->parent.

This patchset is on top of

v3.8-rc2 d1c3ed669a2d452cacfb48c2d171a1f364dae2ed
+ [1] "[PATCHSET cgroup/for-3.8] cpuset: decouple cpuset locking from cgroup core, take#2"

and available in the following git branch.

 git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-cpuset-iter

 include/linux/cgroup.h |    1 
 kernel/cgroup.c        |   26 ++++++++
 kernel/cpuset.c        |  151 +++++++++++++++++++++----------------------------
 3 files changed, 92 insertions(+), 86 deletions(-)

Thanks.

--
tejun

[1] http://thread.gmane.org/gmane.linux.kernel.cgroups/5629
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