linux-kernel - [RFC PATCH 13/14] sched: Make cpu/cpuacct threaded controllers

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Date:   Fri, 21 Apr 2017 10:04:11 -0400
From:   Waiman Long <longman@...hat.com>
To:     Tejun Heo <tj@...nel.org>, Li Zefan <lizefan@...wei.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>
Cc:     cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-mm@...ck.org, kernel-team@...com,
        pjt@...gle.com, luto@...capital.net, efault@....de,
        Waiman Long <longman@...hat.com>
Subject: [RFC PATCH 13/14] sched: Make cpu/cpuacct threaded controllers

Make cpu and cpuacct cgroup controllers usable within a threaded cgroup.

Signed-off-by: Waiman Long <longman@...hat.com>
---
 kernel/sched/core.c    | 1 +
 kernel/sched/cpuacct.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 78dfcaa..9d8beda 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7432,6 +7432,7 @@ struct cgroup_subsys cpu_cgrp_subsys = {
 	.legacy_cftypes	= cpu_legacy_files,
 	.dfl_cftypes	= cpu_files,
 	.early_init	= true,
+	.threaded	= true,
 #ifdef CONFIG_CGROUP_CPUACCT
 	/*
 	 * cpuacct is enabled together with cpu on the unified hierarchy
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c
index fc1cf13..853d18a 100644
--- a/kernel/sched/cpuacct.c
+++ b/kernel/sched/cpuacct.c
@@ -414,4 +414,5 @@ struct cgroup_subsys cpuacct_cgrp_subsys = {
 	.css_free	= cpuacct_css_free,
 	.legacy_cftypes	= files,
 	.early_init	= true,
+	.threaded	= true,
 };
-- 
1.8.3.1