Re: [RFC PATCH 57/57] MAINTAINERS: add an entry for collapse

From: David Hildenbrand (Arm)

Date: Mon Aug 17 2026 - 04:14:19 EST


On 8/17/26 10:04, Lorenzo Stoakes (ARM) wrote:
> On Sun, Aug 16, 2026 at 11:46:09PM +0100, Kiryl Shutsemau wrote:
>> From: "Kiryl Shutsemau (Meta)" <kas@xxxxxxxxxx>
>>
>> Collapse is now its own body of code: mm/collapse.c, a header stating what
>> it offers a caller, and its own tracepoint family. It has two callers,
>> the khugepaged daemon and MADV_COLLAPSE, rather than living inside one of
>> them.
>>
>> Add a section for it, and move what belongs to it out of the THP entry:
>> khugepaged.c and its header, the trace header, the selftests, and
>> mm_slot.h.
>>
>> The selftests are matched as khugepaged*.c, which also covers the race and
>> sync-check harnesses the THP entry did not list. mm_slot.h stays listed
>> under KSM as well, which is the other user of it.
>>
>> Assisted-by: Claude-Code:claude-opus-5
>> Signed-off-by: Kiryl Shutsemau (Meta) <kas@xxxxxxxxxx>
>> ---
>> MAINTAINERS | 19 ++++++++++++++-----
>> 1 file changed, 14 insertions(+), 5 deletions(-)
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 7c179b333e4e..4e4e5030b979 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -16955,6 +16955,20 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
>> F: include/linux/balloon.h
>> F: mm/balloon.c
>>
>> +MEMORY MANAGEMENT - COLLAPSE
>> +M: Kiryl Shutsemau <kas@xxxxxxxxxx>
>> +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: include/linux/khugepaged.h
>> +F: include/trace/events/collapse.h
>> +F: mm/collapse.c
>> +F: mm/collapse.h
>> +F: mm/khugepaged.c
>> +F: mm/mm_slot.h
>> +F: tools/testing/selftests/mm/khugepaged*.c
>> +
>
> I'll look through the series properly, but presumably this is a separation of
> the THP collapse logic, and therefore should have the same maintainers/reviewers
> as the rest of THP.

Jup.

--
Cheers,

David