From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753233AbdHQSZy (ORCPT ); Thu, 17 Aug 2017 14:25:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47814 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751943AbdHQSZx (ORCPT ); Thu, 17 Aug 2017 14:25:53 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 420B7356D0 Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=longman@redhat.com From: Waiman Long To: Tejun Heo , Li Zefan , Johannes Weiner Cc: linux-kernel@vger.kernel.org, Waiman Long Subject: [PATCH v2 0/2] cpuset: Allow v2 behavior in v1 cgroup Date: Thu, 17 Aug 2017 14:25:37 -0400 Message-Id: <1502994339-21668-1-git-send-email-longman@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 17 Aug 2017 18:25:53 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org v1->v2: - Drop the kernel command line option and use cgroupfs mount option instead to enable v2 controller behavior in v1 cgroup. v1: https://lkml.org/lkml/2017/8/15/570 This patchset adds a new cgroupfs mount option "v2_mode" that serves as a hint that a v1 controller can use v2 hehavior, if applicable. The cpuset controller is then modified to observe this mode. Patch 1 adds the v1 cgroupfs mount option "v2_mode" which set a flag in the cgroup_root flags. Patch 2 modifies the cpuset controller to check the cgroup_root flag and switch to v2 behavior even in a v1 cgroup. Waiman Long (2): cgroup: Add a hint to allow v1 controller to use v2 behavior cpuset: Allow v2 behavior in v1 cgroup include/linux/cgroup-defs.h | 5 +++++ kernel/cgroup/cgroup-v1.c | 6 ++++++ kernel/cgroup/cpuset.c | 33 ++++++++++++++++++++------------- 3 files changed, 31 insertions(+), 13 deletions(-) -- 1.8.3.1