linux-kernel - Re: [RESEND v3] cgroup: add cgroup_favordynmods= command-line option

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Message-ID: <ZR2zsZIung0-mWii@slm.duckdns.org>
Date:   Wed, 4 Oct 2023 08:49:21 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Luiz Capitulino <luizcap@...zon.com>
Cc:     lizefan.x@...edance.com, hannes@...xchg.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        longman@...hat.com, kamalesh.babulal@...cle.com, mkoutny@...e.com
Subject: Re: [RESEND v3] cgroup: add cgroup_favordynmods= command-line option

On Wed, Sep 27, 2023 at 02:25:40PM +0000, Luiz Capitulino wrote:
> We have a need of using favordynmods with cgroup v1, which doesn't support
> changing mount flags during remount. Enabling CONFIG_CGROUP_FAVOR_DYNMODS at
> build-time is not an option because we want to be able to selectively
> enable it for certain systems.
> 
> This commit addresses this by introducing the cgroup_favordynmods=
> command-line option. This option works for both cgroup v1 and v2 and also
> allows for disabling favorynmods when the kernel built with
> CONFIG_CGROUP_FAVOR_DYNMODS=y.
> 
> Also, note that when cgroup_favordynmods=true favordynmods is never
> disabled in cgroup_destroy_root().
> 
> Signed-off-by: Luiz Capitulino <luizcap@...zon.com>

Applied to cgroup/for-6.7.

Thanks.

-- 
tejun