cgroup, sched: cgroup2 interface for CPU controller (on basic acct) [LWN.net]

From:		Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A-AT-public.gmane.org>
To:		lizefan-hv44wF8Li93QT0dZR+AlfA-AT-public.gmane.org, hannes-druUgvl0LCNAfugRpC6u6w-AT-public.gmane.org, peterz-wEGCiKHe2LqWVfeAwA7xHQ-AT-public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA-AT-public.gmane.org
Subject:		[PATCHSET REPOST for-4.15] cgroup, sched: cgroup2 interface for CPU controller (on basic acct)
Date:		Mon, 25 Sep 2017 09:00:17 -0700
Message-ID:		<20170925160019.683562-1-tj@kernel.org>
Cc:		longman-H+wXaHxf7aLQT0dZR+AlfA-AT-public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA-AT-public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA-AT-public.gmane.org, kernel-team-b10kYP2dOMg-AT-public.gmane.org, pjt-hpIqsD4AKlfQT0dZR+AlfA-AT-public.gmane.org, luto-kltTT9wpgjJwATOyAt5JVQ-AT-public.gmane.org, efault-Mmb7MZpHnFY-AT-public.gmane.org, torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b-AT-public.gmane.org, guro-b10kYP2dOMg-AT-public.gmane.org

Hello,

(Rebased on cgroup/for-4.15, no real changes.  Once acked, I think
 it'd be easiest to route these through the cgroup branch;
 alternatively, we can pull cgroup/for-4.15 to a sched branch and
 apply these there.)

These are two patches to implement the cgroup2 CPU controller
interface.  Changes from the last revision[L].

* Updated on top of the cgroup2 basic resource accounting patchset[B]
  and now uses cgroup2's CPU accounting instead of cpuacct as stat
  source.

* cpuacct is no longer necessary and not converted.

This patchset contains the following two patches.

 0001-sched-Misc-preps-for-cgroup-unified-hierarchy-interf.patch
 0002-sched-Implement-interface-for-cgroup-unified-hierarc.patch

It's on top of the cgroup2 basic resource accounting patchset, which
has been merged to cgroup/for-4.15, and available in the following git
branch.

 git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-cgroup2-cpu-on-basic-acct

diffstat follows.  Thanks.

 Documentation/cgroup-v2.txt |   36 ++------
 kernel/sched/core.c         |  179 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 187 insertions(+), 28 deletions(-)

--
tejun

[L] http://lkml.kernel.org/r/20170720184808.1433868-1-tj-DgEj...
[B] http://lkml.kernel.org/r/20170811163754.3939102-1-tj-DgEj...