linux-kernel - Re: [PATCH 5.15 00/91] 5.15.108-rc1 review

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Date:   Tue, 18 Apr 2023 22:56:22 -0600
From:   Yu Zhao <yuzhao@...gle.com>
To:     Bagas Sanjaya <bagasdotme@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Tom Saeger <tom.saeger@...cle.com>,
        Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        Waiman Long <longman@...hat.com>, stable@...r.kernel.org,
        patches@...ts.linux.dev, linux-kernel@...r.kernel.org,
        torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
        linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, sudipm.mukherjee@...il.com,
        srw@...dewatkins.net, rwarsow@....de, Tejun Heo <tj@...nel.org>,
        Michal Koutný <mkoutny@...e.com>,
        Daniel Díaz <daniel.diaz@...aro.org>,
        Anders Roxell <anders.roxell@...aro.org>,
        Darren Kenny <darren.kenny@...cle.com>,
        Vegard Nossum <vegard.nossum@...cle.com>
Subject: Re: [PATCH 5.15 00/91] 5.15.108-rc1 review

On Tue, Apr 18, 2023 at 10:18 PM Bagas Sanjaya <bagasdotme@...il.com> wrote:
>
> On Tue, Apr 18, 2023 at 10:51:05AM -0600, Tom Saeger wrote:
> > > Tom Saeger identified that the below commit moves it out of ifdef.
> > >
> > > commit 354ed597442952fb680c9cafc7e4eb8a76f9514c
> > > Author: Yu Zhao <yuzhao@...gle.com>
> > > Date:   Sun Sep 18 02:00:07 2022 -0600
> > >
> > >     mm: multi-gen LRU: kill switch
> > >
> > FWIW - partially backporting (location of cgroup_mutex extern) from:
> > 354ed5974429 ("mm: multi-gen LRU: kill switch")
> >
> > fixes x86_64 build for me.
> >
> > Regards,
> >
> > --Tom
> >
> > diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h

...

> Yu, would you like to provide formal backport?

Are you suggesting backporting the entire MGLRU patchset (>30 patches)?

I do have the backport ready for 5.15 and multiple distros have taken
it. But I don't think Greg would welcome it. I'd be happy to be wrong
though.