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Date:   Thu, 14 Jan 2021 14:12:58 +0100
From:   Michal Koutný <mkoutny@...e.com>
To:     Chen Zhou <chenzhou10@...wei.com>
Cc:     tj@...nel.org, lizefan.x@...edance.com, hannes@...xchg.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] cgroup-v1: add disabled controller check in
 cgroup1_parse_param()

Hello Chen.

On Fri, Dec 18, 2020 at 02:17:55PM +0800, Chen Zhou <chenzhou10@...wei.com> wrote:
> When mounting a cgroup hierarchy with disabled controller in cgroup v1,
> all available controllers will be attached.
Not sure if I understand the situation -- have you observed a v1
controller attached to a hierarchy while specifying cgroup_no_v1= kernel
cmdline arg?

AFAICS, the disabled controllers are honored thanks to
check_cgroupfs_options().

Michal

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