From: "David Hildenbrand (Red Hat)" <david@kernel.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: Peter Xu <peterx@redhat.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Muchun Song <muchun.song@linux.dev>,
Nikita Kalyazin <kalyazin@amazon.com>,
Vlastimil Babka <vbabka@suse.cz>,
Axel Rasmussen <axelrasmussen@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
James Houghton <jthoughton@google.com>,
Hugh Dickins <hughd@google.com>, Michal Hocko <mhocko@suse.com>,
Ujwal Kundur <ujwal.kundur@gmail.com>,
Oscar Salvador <osalvador@suse.de>,
Suren Baghdasaryan <surenb@google.com>,
Andrea Arcangeli <aarcange@redhat.com>,
conduct@kernel.org
Subject: Re: [PATCH v4 0/4] mm/userfaultfd: modulize memory types
Date: Tue, 4 Nov 2025 13:23:49 +0100 [thread overview]
Message-ID: <52e064b1-819a-47b3-9f4e-7ab0890841e7@kernel.org> (raw)
In-Reply-To: <aQmplrpNjvCVjWb_@kernel.org>
On 04.11.25 08:21, Mike Rapoport wrote:
> On Mon, Nov 03, 2025 at 10:27:05PM +0100, David Hildenbrand (Red Hat) wrote:
>>
>> And maybe that's the main problem here: Liam talks about general uffd
>> cleanups while you are focused on supporting guest_memfd minor mode "as
>> simple as possible" (as you write below).
>
> Hijacking for the technical part for a moment ;-)
What?! That's crazy :P
>
> It seems that "as simple as possible" can even avoid data members in struct
> vm_uffd_ops, e.g something along these lines:
Right, that's certainly even more "minimal".
In the end I agree with previous assessment that the original series is
not completely a "modulize memory types".
If we want to make it easier for guest_memfd to support
MFILL_ATOMIC_CONTINUE, then maybe we should focus on that, and only
that, for the time being to make progress.
--
Cheers
David
next prev parent reply other threads:[~2025-11-04 12:24 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-14 23:14 Peter Xu
2025-10-14 23:14 ` [PATCH v4 1/4] mm: Introduce vm_uffd_ops API Peter Xu
2025-10-20 14:18 ` David Hildenbrand
2025-10-14 23:14 ` [PATCH v4 2/4] mm/shmem: Support " Peter Xu
2025-10-20 14:18 ` David Hildenbrand
2025-10-14 23:15 ` [PATCH v4 3/4] mm/hugetlb: " Peter Xu
2025-10-20 14:19 ` David Hildenbrand
2025-10-14 23:15 ` [PATCH v4 4/4] mm: Apply vm_uffd_ops API to core mm Peter Xu
2025-10-20 13:34 ` [PATCH v4 0/4] mm/userfaultfd: modulize memory types David Hildenbrand
2025-10-20 14:12 ` Peter Xu
2025-10-21 15:51 ` Liam R. Howlett
2025-10-21 16:28 ` Peter Xu
2025-10-30 17:13 ` Liam R. Howlett
2025-10-30 18:00 ` Nikita Kalyazin
2025-10-30 19:07 ` Peter Xu
2025-10-30 19:55 ` Peter Xu
2025-10-30 20:23 ` Lorenzo Stoakes
2025-10-30 21:13 ` Peter Xu
2025-10-30 21:27 ` Peter
2025-11-03 20:01 ` David Hildenbrand (Red Hat)
2025-11-03 20:46 ` Peter Xu
2025-11-03 21:27 ` David Hildenbrand (Red Hat)
2025-11-03 22:49 ` Peter Xu
2025-11-04 7:10 ` Lorenzo Stoakes
2025-11-04 14:18 ` David Hildenbrand (Red Hat)
2025-11-04 7:21 ` Mike Rapoport
2025-11-04 12:23 ` David Hildenbrand (Red Hat) [this message]
2025-11-06 16:32 ` Liam R. Howlett
2025-11-09 7:11 ` Mike Rapoport
2025-11-10 16:34 ` Liam R. Howlett
2025-11-11 10:05 ` Mike Rapoport
2025-10-30 20:52 ` Liam R. Howlett
2025-10-30 21:33 ` Peter Xu
2025-10-30 20:24 ` Liam R. Howlett
2025-10-30 21:26 ` Peter Xu
2025-11-03 16:11 ` Mike Rapoport
2025-11-03 18:43 ` Liam R. Howlett
2025-11-05 21:23 ` David Hildenbrand
2025-11-06 16:16 ` Liam R. Howlett
2025-11-07 10:16 ` David Hildenbrand (Red Hat)
2025-11-07 16:55 ` Liam R. Howlett
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