linux-kernel - Re: [RFC PATCH] MAINTAINERS: add mm ksm section

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Message-ID: <21854d9d-c83c-402f-89c9-179bc684f0fd@linux.dev>
Date: Wed, 14 May 2025 10:31:12 +0800
From: Chengming Zhou <chengming.zhou@...ux.dev>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
 David Hildenbrand <david@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, xu xin <xu.xin16@....com.cn>,
 linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] MAINTAINERS: add mm ksm section

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@...cle.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@...ux-foundation.org>
>>>>> +M:	David Hildenbrand <david@...hat.com>
>>>>> +R:	xu xin <xu.xin16@....com.cn>
>>>>> +R:	Chengming Zhou <chengming.zhou@...ux.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@...ux.dev>

Thanks!