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From: Tejun Heo <tj@kernel.org>
To: lizefan@huawei.com, paul@paulmenage.org, glommer@parallels.com
Cc: containers@lists.linux-foundation.org, cgroups@vger.kernel.org,
	peterz@infradead.org, mhocko@suse.cz,
	linux-kernel@vger.kernel.org
Subject: [PATCHSET cgroup/for-3.8] cpuset: drop cpuset->stack_list and ->parent
Date: Wed, 28 Nov 2012 14:26:58 -0800	[thread overview]
Message-ID: <1354141621-11906-1-git-send-email-tj@kernel.org> (raw)

Hello, guys.

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

cgroup/for-3.8 fddfb02ad0 ("cgroup: move list add after list head initilization")
+ [1] "[PATCHSET cgroup/for-3.8] cpuset: decouple cpuset locking from cgroup core"

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/5251

             reply	other threads:[~2012-11-28 22:27 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-28 22:26 Tejun Heo [this message]
2012-11-28 22:26 ` [PATCH 1/3] cpuset: implement cgroup_rightmost_descendant() Tejun Heo
2012-12-03 16:03   ` Michal Hocko
2012-11-28 22:27 ` [PATCH 2/3] cpuset: replace cpuset->stack_list with cpuset_for_each_descendant_pre() Tejun Heo
2012-12-03 16:18   ` Michal Hocko
2012-11-28 22:27 ` [PATCH 3/3] cpuset: remove cpuset->parent Tejun Heo
2012-12-03 16:20   ` Michal Hocko
2012-12-03 15:55 ` [PATCHSET cgroup/for-3.8] cpuset: drop cpuset->stack_list and ->parent Michal Hocko

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