From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Lorenzo Stoakes <ljs@kernel.org>,
"Vlastimil Babka (SUSE)" <vbabka@kernel.org>
Cc: Nico Pache <npache@redhat.com>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, liam@infradead.org, mhocko@suse.com,
rppt@kernel.org, vbabka@suse.cz, willy@infradead.org
Subject: Re: Process (was Re: [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP) collapse support
Date: Mon, 1 Jun 2026 17:43:11 +0200 [thread overview]
Message-ID: <f7737b9c-42ba-46d1-b69e-53ac2bda59a6@kernel.org> (raw)
In-Reply-To: <ah2fG9fSqbocqUlE@lucifer>
>>> and have people
>>> base work against that?
>>
>> This I'm not so sure how it would work. Assuming we have submaintainers with
>> their trees and branches, the final "stable branch" is merged from those.
>
> I feel like it could get hairy pretty quick, but I guess the key thing here is -
> maintainers resolve merge conflicts.
>
> As long as we have a specific _solid_ basis for work.
>
> I think actually this speaks to it being sensible for each submaintainer with a
> separate tree to maintain their own repos rather than branches.
>
> We need to determine what this baseline would be for each tree though.
>
> So perhaps each submaintainer tree has for-mm-next that's the stable branch from
> mm-next + any stabliised local changes.
>
> And each week this gets merged to mm-next, and everybody resets to mm-next
> stable branch?
I think it gets way more complicated than that once we involve hotfix branches,
and dependencies between hotfixes, topic branches and all of that. And in
particular, if we have to drop a topic branch in some circumstances.
My first step will be to understand "how would it look like without
submaintainers" when only having topic branches.
Then, add a complexity level on top with subcomonent maintainers :)
I'll probably schedule a session in 2 weeks.
Whom to invite?
--
Cheers,
David
next prev parent reply other threads:[~2026-06-01 15:43 UTC|newest]
Thread overview: 145+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-22 14:59 [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP " Nico Pache
2026-05-22 14:59 ` [PATCH mm-unstable v18 01/14] mm/khugepaged: generalize hugepage_vma_revalidate for mTHP support Nico Pache
2026-05-22 14:59 ` [PATCH mm-unstable v18 02/14] mm/khugepaged: generalize alloc_charge_folio() Nico Pache
2026-05-22 14:59 ` [PATCH mm-unstable v18 03/14] mm/khugepaged: rework max_ptes_* handling with helper functions Nico Pache
2026-05-22 21:16 ` David Hildenbrand (Arm)
2026-06-01 13:26 ` Lorenzo Stoakes
2026-06-05 16:04 ` Zi Yan
2026-05-22 14:59 ` [PATCH mm-unstable v18 04/14] mm/khugepaged: generalize __collapse_huge_page_* for mTHP support Nico Pache
2026-05-22 21:24 ` David Hildenbrand (Arm)
2026-05-26 14:39 ` Nico Pache
2026-06-01 14:04 ` Lorenzo Stoakes
2026-05-22 15:00 ` [PATCH mm-unstable v18 05/14] mm/khugepaged: require collapse_huge_page to enter/exit with the lock dropped Nico Pache
2026-06-01 14:07 ` Lorenzo Stoakes
2026-06-02 10:26 ` Nico Pache
2026-05-22 15:00 ` [PATCH mm-unstable v18 06/14] mm/khugepaged: generalize collapse_huge_page for mTHP collapse Nico Pache
2026-05-22 21:47 ` David Hildenbrand (Arm)
2026-05-26 14:42 ` Nico Pache
2026-05-31 9:39 ` Lance Yang
2026-05-31 20:00 ` David Hildenbrand (Arm)
2026-06-01 3:28 ` Lance Yang
2026-06-01 6:54 ` David Hildenbrand (Arm)
2026-06-01 7:49 ` Lance Yang
2026-06-01 8:15 ` David Hildenbrand (Arm)
2026-06-01 8:44 ` Lance Yang
2026-06-01 10:09 ` David Hildenbrand (Arm)
2026-06-01 9:08 ` Lance Yang
2026-06-01 10:23 ` David Hildenbrand (Arm)
2026-06-01 10:47 ` Lance Yang
2026-06-01 11:13 ` David Hildenbrand (Arm)
2026-06-01 15:00 ` Nico Pache
2026-06-01 15:05 ` David Hildenbrand (Arm)
2026-06-01 16:07 ` Lance Yang
2026-06-04 17:04 ` Nico Pache
2026-06-04 18:12 ` Lorenzo Stoakes
2026-06-05 7:18 ` David Hildenbrand (Arm)
2026-06-05 8:07 ` Lorenzo Stoakes
2026-06-05 8:59 ` Lance Yang
2026-06-02 15:30 ` Nico Pache
2026-06-02 16:34 ` Lance Yang
2026-06-04 12:33 ` Lorenzo Stoakes
2026-06-04 10:21 ` Lorenzo Stoakes
2026-06-04 10:32 ` Nico Pache
2026-06-04 11:38 ` Lorenzo Stoakes
2026-06-04 12:39 ` Lorenzo Stoakes
2026-06-04 12:45 ` Nico Pache
2026-06-04 12:55 ` Lorenzo Stoakes
2026-06-04 16:28 ` Nico Pache
2026-05-22 15:00 ` [PATCH mm-unstable v18 07/14] mm/khugepaged: skip collapsing mTHP to smaller orders Nico Pache
2026-05-22 21:51 ` David Hildenbrand (Arm)
2026-05-22 15:00 ` [PATCH mm-unstable v18 08/14] mm/khugepaged: add per-order mTHP collapse failure statistics Nico Pache
2026-05-31 20:09 ` David Hildenbrand (Arm)
2026-06-01 14:13 ` Lorenzo Stoakes
2026-05-22 15:00 ` [PATCH mm-unstable v18 09/14] mm/khugepaged: improve tracepoints for mTHP orders Nico Pache
2026-05-22 15:00 ` [PATCH mm-unstable v18 10/14] mm/khugepaged: introduce collapse_allowable_orders helper function Nico Pache
2026-05-31 20:18 ` David Hildenbrand (Arm)
2026-06-01 14:35 ` Lorenzo Stoakes
2026-06-01 14:40 ` David Hildenbrand (Arm)
2026-05-22 15:00 ` [PATCH mm-unstable v18 11/14] mm/khugepaged: Introduce mTHP collapse support Nico Pache
2026-05-25 14:15 ` Nico Pache
2026-05-25 19:10 ` Andrew Morton
2026-05-26 6:57 ` Wei Yang
2026-05-26 12:07 ` Nico Pache
2026-05-28 8:42 ` Wei Yang
2026-05-28 17:11 ` Nico Pache
2026-05-31 7:18 ` Lance Yang
2026-05-31 8:48 ` Lance Yang
2026-06-01 12:01 ` Nico Pache
2026-06-01 12:06 ` David Hildenbrand (Arm)
2026-06-02 10:58 ` Nico Pache
2026-06-02 15:44 ` Lance Yang
2026-06-03 8:05 ` David Hildenbrand (Arm)
2026-06-04 14:40 ` Lorenzo Stoakes
2026-06-01 8:11 ` David Hildenbrand (Arm)
2026-06-01 12:40 ` Nico Pache
2026-06-01 13:15 ` David Hildenbrand (Arm)
2026-06-02 17:23 ` Nico Pache
2026-06-02 17:26 ` Nico Pache
2026-06-03 9:55 ` David Hildenbrand (Arm)
2026-06-03 10:00 ` David Hildenbrand (Arm)
2026-06-03 12:16 ` Nico Pache
2026-06-03 12:27 ` David Hildenbrand (Arm)
2026-06-04 14:14 ` Lorenzo Stoakes
2026-06-04 14:19 ` Lorenzo Stoakes
2026-06-04 13:53 ` Lorenzo Stoakes
2026-06-04 13:59 ` Lorenzo Stoakes
2026-06-04 14:45 ` Lorenzo Stoakes
2026-06-05 11:07 ` Nico Pache
2026-06-05 11:08 ` Nico Pache
2026-05-22 15:00 ` [PATCH mm-unstable v18 12/14] mm/khugepaged: avoid unnecessary mTHP collapse attempts Nico Pache
2026-05-31 7:31 ` Lance Yang
2026-05-31 20:02 ` David Hildenbrand (Arm)
2026-06-01 1:53 ` Lance Yang
2026-05-22 15:00 ` [PATCH mm-unstable v18 13/14] mm/khugepaged: run khugepaged for all orders Nico Pache
2026-05-22 15:00 ` [PATCH mm-unstable v18 14/14] Documentation: mm: update the admin guide for mTHP collapse Nico Pache
2026-05-22 21:58 ` David Hildenbrand (Arm)
2026-05-26 12:00 ` Nico Pache
2026-05-26 14:45 ` Nico Pache
2026-05-22 15:07 ` [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP collapse support Nico Pache
2026-05-22 15:13 ` Vlastimil Babka (SUSE)
2026-05-22 16:11 ` Nico Pache
2026-05-22 21:13 ` David Hildenbrand (Arm)
2026-05-26 8:33 ` Process (was Re: [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP) " Lorenzo Stoakes
2026-05-26 19:09 ` Andrew Morton
2026-05-26 20:42 ` Vlastimil Babka (SUSE)
2026-05-31 19:49 ` David Hildenbrand (Arm)
2026-06-01 15:41 ` Lorenzo Stoakes
2026-06-01 15:45 ` David Hildenbrand (Arm)
2026-06-01 16:16 ` Lorenzo Stoakes
2026-06-02 11:20 ` David Hildenbrand (Arm)
2026-06-02 11:31 ` David Hildenbrand (Arm)
2026-06-02 12:47 ` Lorenzo Stoakes
2026-06-02 12:55 ` Vlastimil Babka (SUSE)
2026-06-02 13:01 ` David Hildenbrand (Arm)
2026-06-02 17:31 ` Mike Rapoport
2026-06-03 6:48 ` Lorenzo Stoakes
2026-06-03 8:39 ` Mike Rapoport
2026-06-03 9:57 ` Mark Brown
2026-06-03 10:51 ` Mike Rapoport
2026-06-03 9:03 ` Mark Brown
2026-06-02 12:40 ` Lorenzo Stoakes
2026-06-02 12:49 ` David Hildenbrand (Arm)
2026-06-02 12:47 ` Vlastimil Babka (SUSE)
2026-06-02 12:58 ` David Hildenbrand (Arm)
2026-06-02 13:08 ` Vlastimil Babka (SUSE)
2026-06-02 13:16 ` David Hildenbrand (Arm)
2026-06-03 1:48 ` SeongJae Park
2026-06-05 15:24 ` David Hildenbrand (Arm)
2026-06-06 0:01 ` SeongJae Park
2026-06-01 15:37 ` Lorenzo Stoakes
2026-06-01 15:43 ` David Hildenbrand (Arm) [this message]
2026-06-01 15:47 ` Lorenzo Stoakes
2026-06-01 16:00 ` David Hildenbrand (Arm)
2026-05-22 15:16 ` [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP " Lorenzo Stoakes
2026-05-22 16:08 ` Nico Pache
2026-05-22 16:19 ` Lorenzo Stoakes
2026-05-22 16:31 ` Nico Pache
2026-05-22 17:12 ` Lorenzo Stoakes
2026-05-26 8:14 ` Lorenzo Stoakes
2026-05-22 15:13 ` Lorenzo Stoakes
2026-05-22 20:47 ` Andrew Morton
2026-06-01 15:58 ` Alexander Gordeev
2026-06-01 17:05 ` Nico Pache
2026-06-01 17:08 ` Lorenzo Stoakes
2026-06-02 1:53 ` Lance Yang
2026-06-04 10:10 ` Lorenzo Stoakes
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