From: David Hildenbrand <david@redhat.com>
To: Peter Xu <peterx@redhat.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Axel Rasmussen <axelrasmussen@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
James Houghton <jthoughton@google.com>,
Nikita Kalyazin <kalyazin@amazon.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Ujwal Kundur <ujwal.kundur@gmail.com>,
Mike Rapoport <rppt@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Michal Hocko <mhocko@suse.com>,
Muchun Song <muchun.song@linux.dev>,
Oscar Salvador <osalvador@suse.de>,
Hugh Dickins <hughd@google.com>,
Suren Baghdasaryan <surenb@google.com>
Subject: Re: [PATCH v3 1/4] mm: Introduce vm_uffd_ops API
Date: Tue, 7 Oct 2025 22:23:02 +0200 [thread overview]
Message-ID: <7d25bdf0-f225-4bcf-a0cc-d0364bbfc7c7@redhat.com> (raw)
In-Reply-To: <aOVtAMm8PqEbGANh@x1.local>
> I believe that's what David mentioned very initially here:
>
> https://lore.kernel.org/r/f1da3505-f17f-4829-80c1-696b1d99057d@redhat.com
>
> I'd rather go with the two fields, but if we're trying to introduce another
> feature sets almost only for vm_uffd_ops, I'd prefer keeping it simple, and
> deduce the modes from ioctls.
>
> Is that ok for you? So it'll have (1) get_folio(), (2) supported_ioctls.
> That's all.
I cannot speak for Liam, but for me that looks like the best way forward
for now.
I'd hope that we could get this all cleaned up at some point --
including hugetlb, because it's a pain to have the hugetlb special
casing all over the place even if it's at some point a legacy thing (we
all know it will stick around for years to come).
--
Cheers
David / dhildenb
next prev parent reply other threads:[~2025-10-07 20:23 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-26 21:16 [PATCH v3 0/4] mm/userfaultfd: modulize memory types Peter Xu
2025-09-26 21:16 ` [PATCH v3 1/4] mm: Introduce vm_uffd_ops API Peter Xu
2025-09-30 9:36 ` David Hildenbrand
2025-09-30 10:07 ` Mike Rapoport
2025-09-30 10:18 ` David Hildenbrand
2025-09-30 18:39 ` Peter Xu
2025-09-30 18:48 ` Peter Xu
2025-09-30 19:19 ` David Hildenbrand
2025-09-30 20:35 ` Peter Xu
2025-10-01 13:58 ` David Hildenbrand
2025-10-01 14:35 ` Peter Xu
2025-10-01 14:39 ` David Hildenbrand
2025-10-03 14:02 ` Peter Xu
2025-10-06 13:38 ` David Hildenbrand
2025-10-06 19:06 ` Liam R. Howlett
2025-10-06 21:02 ` Peter Xu
2025-10-07 3:31 ` Liam R. Howlett
2025-10-07 13:51 ` Peter Xu
2025-10-07 16:03 ` Liam R. Howlett
2025-10-07 16:14 ` David Hildenbrand
2025-10-07 16:47 ` Peter Xu
2025-10-07 18:46 ` Liam R. Howlett
2025-10-07 19:41 ` Peter Xu
2025-10-07 20:23 ` David Hildenbrand [this message]
2025-10-07 20:25 ` Liam R. Howlett
2025-10-07 20:40 ` Peter Xu
2025-09-26 21:16 ` [PATCH v3 2/4] mm/shmem: Support " Peter Xu
2025-09-26 21:16 ` [PATCH v3 3/4] mm/hugetlb: " Peter Xu
2025-09-26 21:16 ` [PATCH v3 4/4] mm: Apply vm_uffd_ops API to core mm Peter Xu
2025-09-30 9:23 ` David Hildenbrand
2025-09-30 18:52 ` Peter Xu
2025-09-30 19:49 ` [PATCH v3 0/4] mm/userfaultfd: modulize memory types Liam R. Howlett
2025-09-30 20:45 ` Peter Xu
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