[RFC PATCH] MAINTAINERS: add mm ksm section

[RFC PATCH] MAINTAINERS: add mm ksm section

[Lorenzo Stoakes]

As part of the ongoing efforts to sub-divide memory management
maintainership and reviewership, establish a section for Kernel Samepage
Merging (KSM) and add appropriate maintainers and reviewers.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
---

REVIEWERS NOTES:

I took a look through git blame, past commits, etc. and came up with what
seems to be a reasonable list of people here, if you don't feel you ought
to be here, or if you feel anybody is missing (including yourself!) let me
know :)

David has kindly already agreed to be co-maintainer for this section.

 MAINTAINERS | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 80aa09f2e735..5ea2020acf84 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15567,6 +15567,21 @@ W:	http://www.linux-mm.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
 F:	mm/gup.c

+MEMORY MANAGEMENT - KSM (Kernel Samepage Merging)
+M:	Andrew Morton <akpm@linux-foundation.org>
+M:	David Hildenbrand <david@redhat.com>
+R:	xu xin <xu.xin16@zte.com.cn>
+R:	Chengming Zhou <chengming.zhou@linux.dev>
+L:	linux-mm@kvack.org
+S:	Maintained
+W:	http://www.linux-mm.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
+F:	Documentation/admin-guide/mm/ksm.rst
+F:	Documentation/mm/ksm.rst
+F:	include/linux/ksm.h
+F:	include/trace/events/ksm.h
+F:	mm/ksm.c
+
 MEMORY MANAGEMENT - NUMA MEMBLOCKS AND NUMA EMULATION
 M:	Andrew Morton <akpm@linux-foundation.org>
 M:	Mike Rapoport <rppt@kernel.org>
--
2.49.0

Re: [RFC PATCH] MAINTAINERS: add mm ksm section

[David Hildenbrand]

On 13.05.25 18:17, Lorenzo Stoakes wrote:
> As part of the ongoing efforts to sub-divide memory management
> maintainership and reviewership, establish a section for Kernel Samepage
> Merging (KSM) and add appropriate maintainers and reviewers.
> 
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
> ---
> 
> REVIEWERS NOTES:
> 
> I took a look through git blame, past commits, etc. and came up with what
> seems to be a reasonable list of people here, if you don't feel you ought
> to be here, or if you feel anybody is missing (including yourself!) let me
> know :)
> 
> David has kindly already agreed to be co-maintainer for this section.
> 
>   MAINTAINERS | 15 +++++++++++++++
>   1 file changed, 15 insertions(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 80aa09f2e735..5ea2020acf84 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -15567,6 +15567,21 @@ W:	http://www.linux-mm.org
>   T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
>   F:	mm/gup.c
> 
> +MEMORY MANAGEMENT - KSM (Kernel Samepage Merging)
> +M:	Andrew Morton <akpm@linux-foundation.org>
> +M:	David Hildenbrand <david@redhat.com>
> +R:	xu xin <xu.xin16@zte.com.cn>
> +R:	Chengming Zhou <chengming.zhou@linux.dev>

I don't see a single RB from Chengming Zhou, and a single one from xu 
xin ... :)

In any case, for my M :

Acked-by: David Hildenbrand <david@redhat.com>

-- 
Cheers,

David / dhildenb

Re: [RFC PATCH] MAINTAINERS: add mm ksm section

[Lorenzo Stoakes]

On Tue, May 13, 2025 at 06:52:27PM +0200, David Hildenbrand wrote:
> On 13.05.25 18:17, Lorenzo Stoakes wrote:
> > As part of the ongoing efforts to sub-divide memory management
> > maintainership and reviewership, establish a section for Kernel Samepage
> > Merging (KSM) and add appropriate maintainers and reviewers.
> >
> > Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
> > ---
> >
> > REVIEWERS NOTES:
> >
> > I took a look through git blame, past commits, etc. and came up with what
> > seems to be a reasonable list of people here, if you don't feel you ought
> > to be here, or if you feel anybody is missing (including yourself!) let me
> > know :)
> >
> > David has kindly already agreed to be co-maintainer for this section.
> >
> >   MAINTAINERS | 15 +++++++++++++++
> >   1 file changed, 15 insertions(+)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 80aa09f2e735..5ea2020acf84 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -15567,6 +15567,21 @@ W:	http://www.linux-mm.org
> >   T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> >   F:	mm/gup.c
> >
> > +MEMORY MANAGEMENT - KSM (Kernel Samepage Merging)
> > +M:	Andrew Morton <akpm@linux-foundation.org>
> > +M:	David Hildenbrand <david@redhat.com>
> > +R:	xu xin <xu.xin16@zte.com.cn>
> > +R:	Chengming Zhou <chengming.zhou@linux.dev>
>
> I don't see a single RB from Chengming Zhou, and a single one from xu xin
> ... :)

Yeah sorry this is fuzzy but git blame mm/ksm.c for 2025 gives you _very little_
activity in general, a series fro Xu and a series from yourself :) Xu's series
was... acked by you :P

Equally with Chengming based on other files listed here, I went and checked to
see if there were substantive series as a sort of 'fuzzy matcher' which might
imply a review interest here, and see there did seem to be some.

But obviously if anybody feels any entry here is inappropriate, or on the other
hand anybody was missed off, more than happy to rectify on the un-RFC!

>
> In any case, for my M :
>
> Acked-by: David Hildenbrand <david@redhat.com>

Thanks!

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

Re: [RFC PATCH] MAINTAINERS: add mm ksm section

[David Hildenbrand]

On 13.05.25 20:17, Lorenzo Stoakes wrote:
> On Tue, May 13, 2025 at 06:52:27PM +0200, David Hildenbrand wrote:
>> On 13.05.25 18:17, Lorenzo Stoakes wrote:
>>> As part of the ongoing efforts to sub-divide memory management
>>> maintainership and reviewership, establish a section for Kernel Samepage
>>> Merging (KSM) and add appropriate maintainers and reviewers.
>>>
>>> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
>>> ---
>>>
>>> REVIEWERS NOTES:
>>>
>>> I took a look through git blame, past commits, etc. and came up with what
>>> seems to be a reasonable list of people here, if you don't feel you ought
>>> to be here, or if you feel anybody is missing (including yourself!) let me
>>> know :)
>>>
>>> David has kindly already agreed to be co-maintainer for this section.
>>>
>>>    MAINTAINERS | 15 +++++++++++++++
>>>    1 file changed, 15 insertions(+)
>>>
>>> diff --git a/MAINTAINERS b/MAINTAINERS
>>> index 80aa09f2e735..5ea2020acf84 100644
>>> --- a/MAINTAINERS
>>> +++ b/MAINTAINERS
>>> @@ -15567,6 +15567,21 @@ W:	http://www.linux-mm.org
>>>    T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
>>>    F:	mm/gup.c
>>>
>>> +MEMORY MANAGEMENT - KSM (Kernel Samepage Merging)
>>> +M:	Andrew Morton <akpm@linux-foundation.org>
>>> +M:	David Hildenbrand <david@redhat.com>
>>> +R:	xu xin <xu.xin16@zte.com.cn>
>>> +R:	Chengming Zhou <chengming.zhou@linux.dev>
>>
>> I don't see a single RB from Chengming Zhou, and a single one from xu xin
>> ... :)
> 
> Yeah sorry this is fuzzy but git blame mm/ksm.c for 2025 gives you _very little_
> activity in general, a series fro Xu and a series from yourself :) Xu's series
> was... acked by you :P

Yes, 2025 so far had little activity (fortunately).

> 
> Equally with Chengming based on other files listed here, I went and checked to
> see if there were substantive series as a sort of 'fuzzy matcher' which might
> imply a review interest here, and see there did seem to be some.
> 
> But obviously if anybody feels any entry here is inappropriate, or on the other
> hand anybody was missed off, more than happy to rectify on the un-RFC!

I guess my point is, as a submitter you expect that people that are 
listed under R: that you are supposed to CC would actually ... review? :D

In that case, I would prefer to have actual reviewers there. If there 
are none, then there should be none listed.

Of course, If Xu and Chengming do *want* to actively review KSM code 
changes, I would be more than happy to list them.

-- 
Cheers,

David / dhildenb

Re: [RFC PATCH] MAINTAINERS: add mm ksm section

[Lorenzo Stoakes]

On Tue, May 13, 2025 at 09:05:15PM +0200, David Hildenbrand wrote:
> On 13.05.25 20:17, Lorenzo Stoakes wrote:
> > On Tue, May 13, 2025 at 06:52:27PM +0200, David Hildenbrand wrote:
> > > On 13.05.25 18:17, Lorenzo Stoakes wrote:
> > > > As part of the ongoing efforts to sub-divide memory management
> > > > maintainership and reviewership, establish a section for Kernel Samepage
> > > > Merging (KSM) and add appropriate maintainers and reviewers.
> > > >
> > > > Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
> > > > ---
> > > >
> > > > REVIEWERS NOTES:
> > > >
> > > > I took a look through git blame, past commits, etc. and came up with what
> > > > seems to be a reasonable list of people here, if you don't feel you ought
> > > > to be here, or if you feel anybody is missing (including yourself!) let me
> > > > know :)
> > > >
> > > > David has kindly already agreed to be co-maintainer for this section.
> > > >
> > > >    MAINTAINERS | 15 +++++++++++++++
> > > >    1 file changed, 15 insertions(+)
> > > >
> > > > diff --git a/MAINTAINERS b/MAINTAINERS
> > > > index 80aa09f2e735..5ea2020acf84 100644
> > > > --- a/MAINTAINERS
> > > > +++ b/MAINTAINERS
> > > > @@ -15567,6 +15567,21 @@ W:	http://www.linux-mm.org
> > > >    T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > > >    F:	mm/gup.c
> > > >
> > > > +MEMORY MANAGEMENT - KSM (Kernel Samepage Merging)
> > > > +M:	Andrew Morton <akpm@linux-foundation.org>
> > > > +M:	David Hildenbrand <david@redhat.com>
> > > > +R:	xu xin <xu.xin16@zte.com.cn>
> > > > +R:	Chengming Zhou <chengming.zhou@linux.dev>
> > >
> > > I don't see a single RB from Chengming Zhou, and a single one from xu xin
> > > ... :)
> >
> > Yeah sorry this is fuzzy but git blame mm/ksm.c for 2025 gives you _very little_
> > activity in general, a series fro Xu and a series from yourself :) Xu's series
> > was... acked by you :P
>
> Yes, 2025 so far had little activity (fortunately).

Deprecate? ;) (kidding haha)

>
> >
> > Equally with Chengming based on other files listed here, I went and checked to
> > see if there were substantive series as a sort of 'fuzzy matcher' which might
> > imply a review interest here, and see there did seem to be some.
> >
> > But obviously if anybody feels any entry here is inappropriate, or on the other
> > hand anybody was missed off, more than happy to rectify on the un-RFC!
>
> I guess my point is, as a submitter you expect that people that are listed
> under R: that you are supposed to CC would actually ... review? :D
>

Yeah of course, kinda makes sense right?

> In that case, I would prefer to have actual reviewers there. If there are
> none, then there should be none listed.
>
> Of course, If Xu and Chengming do *want* to actively review KSM code
> changes, I would be more than happy to list them.

Sure, so I think best thing is to ask:

Xu, Chengming - do you WANT to be reviewers here? :) if not, happy to drop.

I could add myself as a reviewer as a backup option in case you need review
also guys, though KSM is really not my area but I can approach from first
principles at least.

Cheers, Lorenzo

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

答复: [RFC PATCH] MAINTAINERS: add mm ksm section

[xu.xin16]

> > I guess my point is, as a submitter you expect that people that are listed
> > under R: that you are supposed to CC would actually ... review? :D
> >
> 
> Yeah of course, kinda makes sense right?
>
> > In that case, I would prefer to have actual reviewers there. If there are
> > none, then there should be none listed.
> >
> > Of course, If Xu and Chengming do *want* to actively review KSM code
> > changes, I would be more than happy to list them.
> 
> Sure, so I think best thing is to ask:
> 
> Xu, Chengming - do you WANT to be reviewers here? :) if not, happy to drop.


Sure,  I am more than willing to take on the role of reviewer for the KSM module.
I am pleasured to dedicating my time to reviewing new patches about KSM on the
mailing list. Thank you for the invitation.

Cheers, Xu

>
> I could add myself as a reviewer as a backup option in case you need review
> also guys, though KSM is really not my area but I can approach from first
> principles at least.
>
> Cheers, Lorenzo

Re: 答复: [RFC PATCH] MAINTAINERS: add mm ksm section

[David Hildenbrand]

On 14.05.25 03:50, xu.xin16@zte.com.cn wrote:
>>> I guess my point is, as a submitter you expect that people that are listed
>>> under R: that you are supposed to CC would actually ... review? :D
>>>
>>
>> Yeah of course, kinda makes sense right?
>>
>>> In that case, I would prefer to have actual reviewers there. If there are
>>> none, then there should be none listed.
>>>
>>> Of course, If Xu and Chengming do *want* to actively review KSM code
>>> changes, I would be more than happy to list them.
>>
>> Sure, so I think best thing is to ask:
>>
>> Xu, Chengming - do you WANT to be reviewers here? :) if not, happy to drop.
> 
> 
> Sure,  I am more than willing to take on the role of reviewer for the KSM module.
> I am pleasured to dedicating my time to reviewing new patches about KSM on the
> mailing list. Thank you for the invitation.

Thanks to both of you, happy to hear that!

-- 
Cheers,

David / dhildenb

Re: [RFC PATCH] MAINTAINERS: add mm ksm section

[Chengming Zhou]

On 2025/5/14 03:09, Lorenzo Stoakes wrote:
> On Tue, May 13, 2025 at 09:05:15PM +0200, David Hildenbrand wrote:
>> On 13.05.25 20:17, Lorenzo Stoakes wrote:
>>> On Tue, May 13, 2025 at 06:52:27PM +0200, David Hildenbrand wrote:
>>>> On 13.05.25 18:17, Lorenzo Stoakes wrote:
>>>>> As part of the ongoing efforts to sub-divide memory management
>>>>> maintainership and reviewership, establish a section for Kernel Samepage
>>>>> Merging (KSM) and add appropriate maintainers and reviewers.
>>>>>
>>>>> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
>>>>> ---
>>>>>
>>>>> REVIEWERS NOTES:
>>>>>
>>>>> I took a look through git blame, past commits, etc. and came up with what
>>>>> seems to be a reasonable list of people here, if you don't feel you ought
>>>>> to be here, or if you feel anybody is missing (including yourself!) let me
>>>>> know :)
>>>>>
>>>>> David has kindly already agreed to be co-maintainer for this section.
>>>>>
>>>>>     MAINTAINERS | 15 +++++++++++++++
>>>>>     1 file changed, 15 insertions(+)
>>>>>
>>>>> diff --git a/MAINTAINERS b/MAINTAINERS
>>>>> index 80aa09f2e735..5ea2020acf84 100644
>>>>> --- a/MAINTAINERS
>>>>> +++ b/MAINTAINERS
>>>>> @@ -15567,6 +15567,21 @@ W:	http://www.linux-mm.org
>>>>>     T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
>>>>>     F:	mm/gup.c
>>>>>
>>>>> +MEMORY MANAGEMENT - KSM (Kernel Samepage Merging)
>>>>> +M:	Andrew Morton <akpm@linux-foundation.org>
>>>>> +M:	David Hildenbrand <david@redhat.com>
>>>>> +R:	xu xin <xu.xin16@zte.com.cn>
>>>>> +R:	Chengming Zhou <chengming.zhou@linux.dev>
>>>>
>>>> I don't see a single RB from Chengming Zhou, and a single one from xu xin
>>>> ... :)
>>>
>>> Yeah sorry this is fuzzy but git blame mm/ksm.c for 2025 gives you _very little_
>>> activity in general, a series fro Xu and a series from yourself :) Xu's series
>>> was... acked by you :P
>>
>> Yes, 2025 so far had little activity (fortunately).
> 
> Deprecate? ;) (kidding haha)

Haha, these are very few changes in KSM since I submitted some optimizations.
Hopefully, maybe we will see more changes with more people trying to use it.

> 
>>
>>>
>>> Equally with Chengming based on other files listed here, I went and checked to
>>> see if there were substantive series as a sort of 'fuzzy matcher' which might
>>> imply a review interest here, and see there did seem to be some.
>>>
>>> But obviously if anybody feels any entry here is inappropriate, or on the other
>>> hand anybody was missed off, more than happy to rectify on the un-RFC!
>>
>> I guess my point is, as a submitter you expect that people that are listed
>> under R: that you are supposed to CC would actually ... review? :D
>>
> 
> Yeah of course, kinda makes sense right?
> 
>> In that case, I would prefer to have actual reviewers there. If there are
>> none, then there should be none listed.
>>
>> Of course, If Xu and Chengming do *want* to actively review KSM code
>> changes, I would be more than happy to list them.
> 
> Sure, so I think best thing is to ask:
> 
> Xu, Chengming - do you WANT to be reviewers here? :) if not, happy to drop.

Sure, I have time and passion to contribute, so:

Acked-by: Chengming Zhou <chengming.zhou@linux.dev>

Thanks!