From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH v9 3/7] cpuset: Add cpuset.sched.load_balance flag to v2
Date: Thu, 31 May 2018 12:44:13 +0200
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To: Waiman Long <longman@redhat.com>
Cc: Tejun Heo <tj@kernel.org>, Li Zefan <lizefan@huawei.com>, Johannes Weiner <hannes@cmpxchg.org>, Ingo Molnar <mingo@redhat.com>, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kernel-team@fb.com, pjt@google.com, luto@amacapital.net, Mike Galbraith <efault@gmx.de>, torvalds@linux-foundation.org, Roman Gushchin <guro@fb.com>, Juri Lelli <juri.lelli@redhat.com>, Patrick Bellasi <patrick.bellasi@arm.com>

On Tue, May 29, 2018 at 09:41:30AM -0400, Waiman Long wrote:
> diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
> index e7534c5..681a809 100644
> --- a/Documentation/cgroup-v2.txt
> +++ b/Documentation/cgroup-v2.txt
> @@ -1542,6 +1542,32 @@ Cpuset Interface Files
>  	Further changes made to "cpuset.cpus" is allowed as long as
>  	the first condition above is still true.
>  
> +	A parent scheduling domain root cgroup cannot distribute all
> +	its CPUs to its child scheduling domain root cgroups

This I think wants to be in the previous patch

>                                                            unless
> +	its load balancing flag is turned off.

And this is indeed for here.