[PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Lorenzo Stoakes (Oracle)]

We are moving to a far more proactive model of maintainership within mm and
thus put a great deal of emphasis on sub-maintainers being active within
the community both in terms of code contributions and review.

The MGLRU has not had much activity since being added to the kernel and the
current maintainers who kindly stepped up have unfortunately not been able
to contribute a great deal to it for over a year, nor engage all that
heavily in review.

As a result, and within no negative connotations implied whatsoever, it
seems appropriate to downgrade the current maintainers to reviewers.

At this time nobody is quite exercising the maintainer role in this area of
the kernel, but there is encouraging activity from a number of people who
are trusted elsewhere in the kernel, and who have contributed relevant work
or review.

Therefore add further reviewers, and at this stage - to reflect the reality
on the ground - we will not have any sub-maintainers listed at all.

Each of the files listed are shared with other sections in MAINTAINERS, so
this doesn't reduce sub-maintainer coverage.

Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
---
(Apologies sent first version of this without MLs attached :)

 MAINTAINERS | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 76431aa5efbe..16874c32e288 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16757,8 +16757,12 @@ F:	mm/migrate_device.c

 MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)
 M:	Andrew Morton <akpm@linux-foundation.org>
-M:	Axel Rasmussen <axelrasmussen@google.com>
-M:	Yuanchu Xie <yuanchu@google.com>
+R:	Kairui Song <kasong@tencent.com>
+R:	Qi Zheng <qi.zheng@linux.dev>
+R:	Shakeel Butt <shakeel.butt@linux.dev>
+R:	Barry Song <baohua@kernel.org>
+R:	Axel Rasmussen <axelrasmussen@google.com>
+R:	Yuanchu Xie <yuanchu@google.com>
 R:	Wei Xu <weixugc@google.com>
 L:	linux-mm@kvack.org
 S:	Maintained
--
2.53.0

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Vlastimil Babka (SUSE)]

+Cc Suren as IIRC he mentioned some intent to look into this as well, in the
mmap_lock call.

On 3/26/26 19:56, Lorenzo Stoakes (Oracle) wrote:
> We are moving to a far more proactive model of maintainership within mm and
> thus put a great deal of emphasis on sub-maintainers being active within
> the community both in terms of code contributions and review.
> 
> The MGLRU has not had much activity since being added to the kernel and the
> current maintainers who kindly stepped up have unfortunately not been able
> to contribute a great deal to it for over a year, nor engage all that
> heavily in review.
> 
> As a result, and within no negative connotations implied whatsoever, it
> seems appropriate to downgrade the current maintainers to reviewers.

Seems fair to me.

> At this time nobody is quite exercising the maintainer role in this area of
> the kernel, but there is encouraging activity from a number of people who
> are trusted elsewhere in the kernel, and who have contributed relevant work
> or review.
> 
> Therefore add further reviewers, and at this stage - to reflect the reality
> on the ground - we will not have any sub-maintainers listed at all.
> 
> Each of the files listed are shared with other sections in MAINTAINERS, so
> this doesn't reduce sub-maintainer coverage.
> 
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>

Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>

(I assume the newly added people will ack their additions)

> ---
> (Apologies sent first version of this without MLs attached :)
> 
>  MAINTAINERS | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 76431aa5efbe..16874c32e288 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -16757,8 +16757,12 @@ F:	mm/migrate_device.c
> 
>  MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)
>  M:	Andrew Morton <akpm@linux-foundation.org>
> -M:	Axel Rasmussen <axelrasmussen@google.com>
> -M:	Yuanchu Xie <yuanchu@google.com>
> +R:	Kairui Song <kasong@tencent.com>
> +R:	Qi Zheng <qi.zheng@linux.dev>
> +R:	Shakeel Butt <shakeel.butt@linux.dev>
> +R:	Barry Song <baohua@kernel.org>
> +R:	Axel Rasmussen <axelrasmussen@google.com>
> +R:	Yuanchu Xie <yuanchu@google.com>
>  R:	Wei Xu <weixugc@google.com>
>  L:	linux-mm@kvack.org
>  S:	Maintained
> --
> 2.53.0
> 

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[David Hildenbrand (Arm)]

On 3/26/26 20:09, Vlastimil Babka (SUSE) wrote:
> +Cc Suren as IIRC he mentioned some intent to look into this as well, in the
> mmap_lock call.
> 
> On 3/26/26 19:56, Lorenzo Stoakes (Oracle) wrote:
>> We are moving to a far more proactive model of maintainership within mm and
>> thus put a great deal of emphasis on sub-maintainers being active within
>> the community both in terms of code contributions and review.
>>
>> The MGLRU has not had much activity since being added to the kernel and the
>> current maintainers who kindly stepped up have unfortunately not been able
>> to contribute a great deal to it for over a year, nor engage all that
>> heavily in review.
>>
>> As a result, and within no negative connotations implied whatsoever, it
>> seems appropriate to downgrade the current maintainers to reviewers.
> 
> Seems fair to me.
> 
>> At this time nobody is quite exercising the maintainer role in this area of
>> the kernel, but there is encouraging activity from a number of people who
>> are trusted elsewhere in the kernel, and who have contributed relevant work
>> or review.
>>
>> Therefore add further reviewers, and at this stage - to reflect the reality
>> on the ground - we will not have any sub-maintainers listed at all.
>>
>> Each of the files listed are shared with other sections in MAINTAINERS, so
>> this doesn't reduce sub-maintainer coverage.
>>
>> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
> 
> Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
> 

Let's represent the actual situation indeed. People can always become
submaintainers again when things changes. For now it's effectively a bit
under-maintained.

Acked-by: David Hildenbrand (Arm) <david@kernel.org>

> (I assume the newly added people will ack their additions)

Agreed.

-- 
Cheers,

David

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Suren Baghdasaryan]

On Thu, Mar 26, 2026 at 12:09 PM Vlastimil Babka (SUSE)
<vbabka@kernel.org> wrote:
>
> +Cc Suren as IIRC he mentioned some intent to look into this as well, in the
> mmap_lock call.

Not myself but I asked Kalesh (CC'ed here) to get involved in upstream
reviews. Kalesh are you ready to be added as a Reviewer?

>
> On 3/26/26 19:56, Lorenzo Stoakes (Oracle) wrote:
> > We are moving to a far more proactive model of maintainership within mm and
> > thus put a great deal of emphasis on sub-maintainers being active within
> > the community both in terms of code contributions and review.
> >
> > The MGLRU has not had much activity since being added to the kernel and the
> > current maintainers who kindly stepped up have unfortunately not been able
> > to contribute a great deal to it for over a year, nor engage all that
> > heavily in review.
> >
> > As a result, and within no negative connotations implied whatsoever, it
> > seems appropriate to downgrade the current maintainers to reviewers.
>
> Seems fair to me.
>
> > At this time nobody is quite exercising the maintainer role in this area of
> > the kernel, but there is encouraging activity from a number of people who
> > are trusted elsewhere in the kernel, and who have contributed relevant work
> > or review.
> >
> > Therefore add further reviewers, and at this stage - to reflect the reality
> > on the ground - we will not have any sub-maintainers listed at all.
> >
> > Each of the files listed are shared with other sections in MAINTAINERS, so
> > this doesn't reduce sub-maintainer coverage.
> >
> > Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
>
> Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
>
> (I assume the newly added people will ack their additions)
>
> > ---
> > (Apologies sent first version of this without MLs attached :)
> >
> >  MAINTAINERS | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 76431aa5efbe..16874c32e288 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -16757,8 +16757,12 @@ F:   mm/migrate_device.c
> >
> >  MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)
> >  M:   Andrew Morton <akpm@linux-foundation.org>
> > -M:   Axel Rasmussen <axelrasmussen@google.com>
> > -M:   Yuanchu Xie <yuanchu@google.com>
> > +R:   Kairui Song <kasong@tencent.com>
> > +R:   Qi Zheng <qi.zheng@linux.dev>
> > +R:   Shakeel Butt <shakeel.butt@linux.dev>
> > +R:   Barry Song <baohua@kernel.org>
> > +R:   Axel Rasmussen <axelrasmussen@google.com>
> > +R:   Yuanchu Xie <yuanchu@google.com>
> >  R:   Wei Xu <weixugc@google.com>
> >  L:   linux-mm@kvack.org
> >  S:   Maintained
> > --
> > 2.53.0
> >
>

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Kalesh Singh]

On Thu, Mar 26, 2026 at 4:47 PM Suren Baghdasaryan <surenb@google.com> wrote:
>
> On Thu, Mar 26, 2026 at 12:09 PM Vlastimil Babka (SUSE)
> <vbabka@kernel.org> wrote:
> >
> > +Cc Suren as IIRC he mentioned some intent to look into this as well, in the
> > mmap_lock call.
>
> Not myself but I asked Kalesh (CC'ed here) to get involved in upstream
> reviews. Kalesh are you ready to be added as a Reviewer?

Hi Suren,

Thanks for looping me in. I plan to try my best to dedicate time MGLRU
reviewss. Let's see how that goes practically, and we can look at
updating the MAINTAINERS file later on if it makes sense.

Thanks,
Kalesh

>
> >
> > On 3/26/26 19:56, Lorenzo Stoakes (Oracle) wrote:
> > > We are moving to a far more proactive model of maintainership within mm and
> > > thus put a great deal of emphasis on sub-maintainers being active within
> > > the community both in terms of code contributions and review.
> > >
> > > The MGLRU has not had much activity since being added to the kernel and the
> > > current maintainers who kindly stepped up have unfortunately not been able
> > > to contribute a great deal to it for over a year, nor engage all that
> > > heavily in review.
> > >
> > > As a result, and within no negative connotations implied whatsoever, it
> > > seems appropriate to downgrade the current maintainers to reviewers.
> >
> > Seems fair to me.
> >
> > > At this time nobody is quite exercising the maintainer role in this area of
> > > the kernel, but there is encouraging activity from a number of people who
> > > are trusted elsewhere in the kernel, and who have contributed relevant work
> > > or review.
> > >
> > > Therefore add further reviewers, and at this stage - to reflect the reality
> > > on the ground - we will not have any sub-maintainers listed at all.
> > >
> > > Each of the files listed are shared with other sections in MAINTAINERS, so
> > > this doesn't reduce sub-maintainer coverage.
> > >
> > > Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
> >
> > Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
> >
> > (I assume the newly added people will ack their additions)
> >
> > > ---
> > > (Apologies sent first version of this without MLs attached :)
> > >
> > >  MAINTAINERS | 8 ++++++--
> > >  1 file changed, 6 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/MAINTAINERS b/MAINTAINERS
> > > index 76431aa5efbe..16874c32e288 100644
> > > --- a/MAINTAINERS
> > > +++ b/MAINTAINERS
> > > @@ -16757,8 +16757,12 @@ F:   mm/migrate_device.c
> > >
> > >  MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)
> > >  M:   Andrew Morton <akpm@linux-foundation.org>
> > > -M:   Axel Rasmussen <axelrasmussen@google.com>
> > > -M:   Yuanchu Xie <yuanchu@google.com>
> > > +R:   Kairui Song <kasong@tencent.com>
> > > +R:   Qi Zheng <qi.zheng@linux.dev>
> > > +R:   Shakeel Butt <shakeel.butt@linux.dev>
> > > +R:   Barry Song <baohua@kernel.org>
> > > +R:   Axel Rasmussen <axelrasmussen@google.com>
> > > +R:   Yuanchu Xie <yuanchu@google.com>
> > >  R:   Wei Xu <weixugc@google.com>
> > >  L:   linux-mm@kvack.org
> > >  S:   Maintained
> > > --
> > > 2.53.0
> > >
> >

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Barry Song]

On Fri, Mar 27, 2026 at 2:56 AM Lorenzo Stoakes (Oracle) <ljs@kernel.org> wrote:
>
> We are moving to a far more proactive model of maintainership within mm and
> thus put a great deal of emphasis on sub-maintainers being active within
> the community both in terms of code contributions and review.
>
> The MGLRU has not had much activity since being added to the kernel and the
> current maintainers who kindly stepped up have unfortunately not been able
> to contribute a great deal to it for over a year, nor engage all that
> heavily in review.
>
> As a result, and within no negative connotations implied whatsoever, it
> seems appropriate to downgrade the current maintainers to reviewers.
>
> At this time nobody is quite exercising the maintainer role in this area of
> the kernel, but there is encouraging activity from a number of people who
> are trusted elsewhere in the kernel, and who have contributed relevant work
> or review.
>
> Therefore add further reviewers, and at this stage - to reflect the reality
> on the ground - we will not have any sub-maintainers listed at all.
>
> Each of the files listed are shared with other sections in MAINTAINERS, so
> this doesn't reduce sub-maintainer coverage.
>
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>

Thanks so much for the trust!
I’m glad to work on MGLRU and help drive progress.

Acked-by: Barry Song <baohua@kernel.org>

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[SeongJae Park]

On Thu, 26 Mar 2026 18:56:29 +0000 "Lorenzo Stoakes (Oracle)" <ljs@kernel.org> wrote:

> We are moving to a far more proactive model of maintainership within mm and
> thus put a great deal of emphasis on sub-maintainers being active within
> the community both in terms of code contributions and review.
> 
> The MGLRU has not had much activity since being added to the kernel and the
> current maintainers who kindly stepped up have unfortunately not been able
> to contribute a great deal to it for over a year, nor engage all that
> heavily in review.
> 
> As a result, and within no negative connotations implied whatsoever, it
> seems appropriate to downgrade the current maintainers to reviewers.
> 
> At this time nobody is quite exercising the maintainer role in this area of
> the kernel, but there is encouraging activity from a number of people who
> are trusted elsewhere in the kernel, and who have contributed relevant work
> or review.
> 
> Therefore add further reviewers, and at this stage - to reflect the reality
> on the ground - we will not have any sub-maintainers listed at all.
> 
> Each of the files listed are shared with other sections in MAINTAINERS, so
> this doesn't reduce sub-maintainer coverage.

All make sense to me.

> 
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>

Acked-by: SeongJae Park <sj@kernel.org>


Thanks,
SJ

[...]

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Kairui Song]

On Fri, Mar 27, 2026 at 3:06 AM Lorenzo Stoakes (Oracle) <ljs@kernel.org> wrote:
>
> We are moving to a far more proactive model of maintainership within mm and
> thus put a great deal of emphasis on sub-maintainers being active within
> the community both in terms of code contributions and review.
>
> The MGLRU has not had much activity since being added to the kernel and the
> current maintainers who kindly stepped up have unfortunately not been able
> to contribute a great deal to it for over a year, nor engage all that
> heavily in review.
>
> As a result, and within no negative connotations implied whatsoever, it
> seems appropriate to downgrade the current maintainers to reviewers.
>
> At this time nobody is quite exercising the maintainer role in this area of
> the kernel, but there is encouraging activity from a number of people who
> are trusted elsewhere in the kernel, and who have contributed relevant work
> or review.
>
> Therefore add further reviewers, and at this stage - to reflect the reality
> on the ground - we will not have any sub-maintainers listed at all.
>
> Each of the files listed are shared with other sections in MAINTAINERS, so
> this doesn't reduce sub-maintainer coverage.
>
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
> ---
> (Apologies sent first version of this without MLs attached :)
>
>  MAINTAINERS | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 76431aa5efbe..16874c32e288 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -16757,8 +16757,12 @@ F:     mm/migrate_device.c
>
>  MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)
>  M:     Andrew Morton <akpm@linux-foundation.org>
> -M:     Axel Rasmussen <axelrasmussen@google.com>
> -M:     Yuanchu Xie <yuanchu@google.com>
> +R:     Kairui Song <kasong@tencent.com>

Thanks a lot for the trust, I'm glad and willing to help review and
improve MGLRU.

Acked-by: Kairui Song <kasong@tencent.com>

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Qi Zheng]

On 3/27/26 2:56 AM, Lorenzo Stoakes (Oracle) wrote:
> We are moving to a far more proactive model of maintainership within mm and
> thus put a great deal of emphasis on sub-maintainers being active within
> the community both in terms of code contributions and review.
> 
> The MGLRU has not had much activity since being added to the kernel and the
> current maintainers who kindly stepped up have unfortunately not been able
> to contribute a great deal to it for over a year, nor engage all that
> heavily in review.
> 
> As a result, and within no negative connotations implied whatsoever, it
> seems appropriate to downgrade the current maintainers to reviewers.
> 
> At this time nobody is quite exercising the maintainer role in this area of
> the kernel, but there is encouraging activity from a number of people who
> are trusted elsewhere in the kernel, and who have contributed relevant work
> or review.
> 
> Therefore add further reviewers, and at this stage - to reflect the reality
> on the ground - we will not have any sub-maintainers listed at all.
> 
> Each of the files listed are shared with other sections in MAINTAINERS, so
> this doesn't reduce sub-maintainer coverage.
> 
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
> ---
> (Apologies sent first version of this without MLs attached :)
> 
>   MAINTAINERS | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 76431aa5efbe..16874c32e288 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -16757,8 +16757,12 @@ F:	mm/migrate_device.c
> 
>   MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)
>   M:	Andrew Morton <akpm@linux-foundation.org>
> -M:	Axel Rasmussen <axelrasmussen@google.com>
> -M:	Yuanchu Xie <yuanchu@google.com>
> +R:	Kairui Song <kasong@tencent.com>
> +R:	Qi Zheng <qi.zheng@linux.dev>

Thanks a lot for the trust! I'm very glad to work on MGLRU and help with
the review.

Acked-by: Qi Zheng <qi.zheng@linux.dev>

Thanks,
Qi

Re: [PATCH] MAINTAINERS: update MGLRU entry to reflect current status

[Lorenzo Stoakes (Oracle)]

(final attempt at sending this mail correctly :))

+cc Suren who I should have cc'd in the first instance :>)

On Thu, Mar 26, 2026 at 01:37:21PM -0700, Axel Rasmussen wrote:
> On Thu, Mar 26, 2026 at 11:54 AM Lorenzo Stoakes (Oracle)
> <ljs@kernel.org> wrote:
> >
> > We are moving to a far more proactive model of maintainership within mm and
> > thus put a great deal of emphasis on sub-maintainers being active within
> > the community both in terms of code contributions and review.
> >
> > The MGLRU has not had much activity since being added to the kernel and the
> > current maintainers who kindly stepped up have unfortunately not been able
> > to contribute a great deal to it for over a year, nor engage all that
> > heavily in review.
> >
> > As a result, and within no negative connotations implied whatsoever, it
> > seems appropriate to downgrade the current maintainers to reviewers.
> >
> > At this time nobody is quite exercising the maintainer role in this area of
> > the kernel, but there is encouraging activity from a number of people who
> > are trusted elsewhere in the kernel, and who have contributed relevant work
> > or review.
> >
> > Therefore add further reviewers, and at this stage - to reflect the reality
> > on the ground - we will not have any sub-maintainers listed at all.
> >
> > Each of the files listed are shared with other sections in MAINTAINERS, so
> > this doesn't reduce sub-maintainer coverage.
>
> No objections from me. For what it's worth, the intent behind adding
> myself and Yuanchu there was primarily just to review patches. So,
> moving to R: instead of M: doesn't change much for me in practice.

Thanks :)

We're already having a great discussion on Shakeel's LSF thread and with
new people interested this can just naturally evolve based on people having
resource to contribute on this.

So this simply reflects the current situation, with hopes that in future
things will evolve and we'll see some real movement on MGLRU!

Cheers, Lorenzo

>
> >
> > Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
> > ---
> >  MAINTAINERS | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 76431aa5efbe..16874c32e288 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -16757,8 +16757,12 @@ F:     mm/migrate_device.c
> >
> >  MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)
> >  M:     Andrew Morton <akpm@linux-foundation.org>
> > -M:     Axel Rasmussen <axelrasmussen@google.com>
> > -M:     Yuanchu Xie <yuanchu@google.com>
> > +R:     Kairui Song <kasong@tencent.com>
> > +R:     Qi Zheng <qi.zheng@linux.dev>
> > +R:     Shakeel Butt <shakeel.butt@linux.dev>
> > +R:     Barry Song <baohua@kernel.org>
> > +R:     Axel Rasmussen <axelrasmussen@google.com>
> > +R:     Yuanchu Xie <yuanchu@google.com>
> >  R:     Wei Xu <weixugc@google.com>
> >  L:     linux-mm@kvack.org
> >  S:     Maintained
> > --
> > 2.53.0
> >