linux-kernel - Re: [PATCH 2/2] MAINTAINERS: add section for locking of mm's and VMAs

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Message-ID: <039f7b19-259d-44f0-a96e-618240317f73@lucifer.local>
Date: Wed, 16 Apr 2025 08:33:04 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: David Hildenbrand <david@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, Matthew Wilcox <willy@...radead.org>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        SeongJae Park <sj@...nel.org>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH 2/2] MAINTAINERS: add section for locking of mm's and VMAs

On Tue, Apr 15, 2025 at 03:25:09PM +0200, David Hildenbrand wrote:
> On 15.04.25 15:10, Lorenzo Stoakes wrote:
> > We place this under memory mapping as related to memory mapping
> > abstractions in the form of mm_struct and vm_area_struct (VMA). Now we have
> > separated out mmap/vma locking logic into the mmap_lock.c and mmap_lock.h
> > files, so this should encapsulate the majority of the mm locking logic in
> > the kernel.
> >
> > Suren is best placed to maintain this logic as the core architect of VMA
> > locking as a whole.
> >
> > Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
> > ---
> >   MAINTAINERS | 15 +++++++++++++++
> >   1 file changed, 15 insertions(+)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 8d834514a047..ce55676a16a4 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -15595,6 +15595,21 @@ F:	mm/vma_internal.h
> >   F:	tools/testing/selftests/mm/merge.c
> >   F:	tools/testing/vma/
> > +MEMORY MAPPING - LOCKING
> > +M:	Andrew Morton <akpm@...ux-foundation.org>
> > +M:	Suren Baghdasaryan <surenb@...gle.com>
> > +R:	Liam R. Howlett <Liam.Howlett@...cle.com>
> > +R:	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
> > +R:	Vlastimil Babka <vbabka@...e.cz>
> > +L:	linux-mm@...ck.org
> > +S:	Maintained
> > +W:	http://www.linux-mm.org
> > +T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > +F:	Documentation/mm/process_addrs.rst
> > +F:	include/linux/mmap_lock.h
> > +F:	include/trace/events/mmap_lock.h
> > +F:	mm/mmap_lock.c
> > +
> >   MEMORY MAPPING - MADVISE (MEMORY ADVICE)
> >   M:	Andrew Morton <akpm@...ux-foundation.org>
> >   M:	Liam R. Howlett <Liam.Howlett@...cle.com>
>
> Sounds like a good idea to me
>
> Acked-by: David Hildenbrand <david@...hat.com>

Thanks! Am going to change this to make me and Liam M's so we can provide
back up to Suren when he's on leave, are you fine with propagating this tag
to this also?

Cheers, Lorenzo

>
> --
> Cheers,
>
> David / dhildenb
>