From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCHSET] cpuset: drop cpuset->stack_list and ->parent, take#2 Date: Thu, 3 Jan 2013 13:44:03 -0800 Message-ID: <1357249446-25075-1-git-send-email-tj@kernel.org> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer; bh=GoY2532I35VDyMiTYdxoRLFMMPvGGO74ygX9FOcM3CM=; b=iRxmH4afYDATMFqRENG3iawPxInwgJEGaC8gEpqci/AN5Ul5cvyEeP1qEpLKIhAUh9 YaNkaIPc+D8oyT1vwHo9I3wONNCWnBJ4gINGRMVxjbLwKXeOuaLbdGov4+o7Hl7EX7pl zoxQ8xvPTsSL6msO0dPo0RzZHjBJCr+IwrAPYSTA+Rm9yM+wvlGm9pfcvTcrTyBAfHdS 1TibpS2f29CaTyywWquD9Rbq3ZfXoqkV6vim9iidmYwPSKpf10a/A5wG6UeJjdKa6Z24 nJYOqzWIh7UbtwvfrHxC5Nctf5/KCPmf/9/aI4yC7yF2PYIw0m8KFxcSICcAjaeehB/b FWJw== Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, paul-inf54ven1CmVyaH7bEyXVA@public.gmane.org, glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, mhocko-AlSwsSmVLrQ@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org 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