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

[Tom Saeger]

On Tue, Apr 18, 2023 at 10:56:22PM -0600, Yu Zhao wrote:
> On Tue, Apr 18, 2023 at 10:18 PM Bagas Sanjaya <bagasdotme@xxxxxxxxx> 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@xxxxxxxxxx>
> > > > 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?

Nah - an easier fix was suggested by Waiman (remove the lockdep_assert_held line) and confirmed here:

https://lore.kernel.org/stable/20230418192807.n3hggjak25tnat7i@xxxxxxxxxx/

> 
> 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.

However, I am interested in testing 5.15 backport of MGLRU.
Where might I find that?

--Tom