Re: [RFC PATCH] MAINTAINERS: add ABI documents for mm

[Lorenzo Stoakes]

On Sun, May 31, 2026 at 09:19:29PM +0200, David Hildenbrand (Arm) wrote:
> On 5/30/26 03:18, SeongJae Park wrote:
> > A few mm subsystem entries in MAINTAINERS are missing their ABI
> > documents.  Add those.
>
> Maybe spell out "testing ABI" in here + subject, because I was concerned there
> for a second :)
>
> >
> > Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
> > ---
> > 1. I found no better place for mm, mm-cma, mm-memory-tiers, and mm-numa,
> >    so put those on the 'MM - MISC' section.  This is an RFC mainly
> >    because I want to know if it concerns someone.
> >
> >  MAINTAINERS | 9 +++++++++
> >  1 file changed, 9 insertions(+)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index e119182a8911d..a31f6f207afd8 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -16854,6 +16854,7 @@ L:	linux-mm@xxxxxxxxx
> >  S:	Maintained
> >  W:	http://www.linux-mm.org
> >  T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-ksm
>
> Makes sense.
>
> >  F:	Documentation/admin-guide/mm/ksm.rst
> >  F:	Documentation/mm/ksm.rst
> >  F:	include/linux/ksm.h
> > @@ -16876,6 +16877,8 @@ L:	linux-mm@xxxxxxxxx
> >  S:	Maintained
> >  W:	http://www.linux-mm.org
> >  T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-mempolicy
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave
>
> Makes sense.
>
> >  F:	include/linux/mempolicy.h
> >  F:	include/uapi/linux/mempolicy.h
> >  F:	include/linux/migrate.h
> > @@ -16918,6 +16921,10 @@ L:	linux-mm@xxxxxxxxx
> >  S:	Maintained
> >  W:	http://www.linux-mm.org
> >  T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm
>
> Maybe that one should go to CORE? But MISC works for me as well.
>
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-cma
>
> Given that CMA is here, sounds about right.
>
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
>
> Given that memory tiering stuff is in here, makes sense I guess.
>
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-numa
>
> That's all about page demotion for vmscan ... but again, also belongs to memory
> tiering. So makes sense.
>
> >  F:	Documentation/admin-guide/mm/
> >  F:	Documentation/mm/
> >  F:	include/linux/cma.h
> > @@ -17041,6 +17048,7 @@ R:	Barry Song <baohua@xxxxxxxxxx>
> >  R:	Youngjun Park <youngjun.park@xxxxxxx>
> >  L:	linux-mm@xxxxxxxxx
> >  S:	Maintained
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-swap
> >  F:	Documentation/mm/swap-table.rst
> >  F:	include/linux/swap.h
> >  F:	include/linux/swapfile.h
> > @@ -17068,6 +17076,7 @@ L:	linux-mm@xxxxxxxxx
> >  S:	Maintained
> >  W:	http://www.linux-mm.org
> >  T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > +F:	Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage
> >  F:	Documentation/admin-guide/mm/transhuge.rst
> >  F:	include/linux/huge_mm.h
> >  F:	include/linux/khugepaged.h
>
> All LGTM.
>
> Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>

Also LGTM from my side - thanks for doing this SJ! :) So:

Reviewed-by: Lorenzo Stoakes <ljs@xxxxxxxxxx>

>
> --
> Cheers,
>
> David

Cheers, Lorenzo