From: Waiman Long <longman@redhat.com>
To: Tejun Heo <tj@kernel.org>, Li Zefan <lizefan@huawei.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Jonathan Corbet <corbet@lwn.net>,
Johannes Weiner <hannes@cmpxchg.org>
Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-api@vger.kernel.org,
Roman Gushchin <guro@fb.com>, Jens Axboe <axboe@kernel.dk>,
Andrew Morton <akpm@linux-foundation.org>,
Dennis Zhou <dennis@kernel.org>,
Shakeel Butt <shakeelb@google.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Waiman Long <longman@redhat.com>
Subject: [PATCH v5 4/5] sched/core: Make cpu cgroup controller bypassable
Date: Mon, 10 Dec 2018 16:40:57 -0500 [thread overview]
Message-ID: <1544478058-24252-5-git-send-email-longman@redhat.com> (raw)
In-Reply-To: <1544478058-24252-1-git-send-email-longman@redhat.com>
Make the cpu cgroup controller bypassable in the default hierarchy so
that cpu controller could be activated only in those cgroups that really
need it instead of all the cgroups down to the lowest level that need it.
Signed-off-by: Waiman Long <longman@redhat.com>
---
kernel/sched/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f12225f..ba4550c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7000,6 +7000,7 @@ struct cgroup_subsys cpu_cgrp_subsys = {
.dfl_cftypes = cpu_files,
.early_init = true,
.threaded = true,
+ .bypassable = true,
};
#endif /* CONFIG_CGROUP_SCHED */
--
1.8.3.1
next prev parent reply other threads:[~2018-12-10 21:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 21:40 [PATCH v5 0/5] cgroup: Introducing bypass mode Waiman Long
2018-12-10 21:40 ` [PATCH v5 1/5] cgroup: subtree_control bypass mode for bypassable controllers Waiman Long
2018-12-10 21:40 ` [PATCH v5 2/5] cgroup: Allow reenabling of controller in bypass mode Waiman Long
2018-12-10 21:40 ` [PATCH v5 3/5] cgroup: Make debug controller report new controller masks Waiman Long
2018-12-10 21:40 ` Waiman Long [this message]
2018-12-10 21:40 ` [PATCH v5 5/5] cgroup: Document bypass mode Waiman Long
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