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From:   Yu Zhao <yuzhao@google.com>
Date:   Tue, 18 Apr 2023 22:56:22 -0600
Message-ID: <CAOUHufa9-AKwwx7oVpQkV355TTmVSfi8roBKEsRjRNbeuGUkbw@mail.gmail.com>
Subject: Re: [PATCH 5.15 00/91] 5.15.108-rc1 review
To:     Bagas Sanjaya <bagasdotme@gmail.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     Tom Saeger <tom.saeger@oracle.com>,
        Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>,
        Naresh Kamboju <naresh.kamboju@linaro.org>,
        Waiman Long <longman@redhat.com>, stable@vger.kernel.org,
        patches@lists.linux.dev, linux-kernel@vger.kernel.org,
        torvalds@linux-foundation.org, akpm@linux-foundation.org,
        linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org,
        lkft-triage@lists.linaro.org, pavel@denx.de, jonathanh@nvidia.com,
        f.fainelli@gmail.com, sudipm.mukherjee@gmail.com,
        srw@sladewatkins.net, rwarsow@gmx.de, Tejun Heo <tj@kernel.org>,
        =?UTF-8?Q?Michal_Koutn=C3=BD?= <mkoutny@suse.com>,
        =?UTF-8?B?RGFuaWVsIETDrWF6?= <daniel.diaz@linaro.org>,
        Anders Roxell <anders.roxell@linaro.org>,
        Darren Kenny <darren.kenny@oracle.com>,
        Vegard Nossum <vegard.nossum@oracle.com>
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On Tue, Apr 18, 2023 at 10:18=E2=80=AFPM Bagas Sanjaya <bagasdotme@gmail.co=
m> 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@google.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.