From: Mike Rapoport <rppt@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Carlier <devnexen@gmail.com>,
David Hildenbrand <david@kernel.org>,
Heechan Kang <gganji11@naver.com>,
"Liam R. Howlett" <liam@infradead.org>,
Lorenzo Stoakes <ljs@kernel.org>,
Michael Bommarito <michael.bommarito@gmail.com>,
Mike Rapoport <rppt@kernel.org>, Peter Xu <peterx@redhat.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/3] userfaultfd: verify VMA state across UFFDIO_COPY retry
Date: Wed, 27 May 2026 21:47:48 +0300 [thread overview]
Message-ID: <20260527184751.4147364-1-rppt@kernel.org> (raw)
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
... and two more small fixes.
This applies on top of the current mm-unstable with
"userfaultfd: snapshot VMA state across UFFDIO_COPY retry"
reverted.
v2 changes:
* rename vma_snapshot to mfill_retry_state and related functions,
variables and constants
* drop redundant check for effective ops
* drop vma_uffd_copy_ops()
* restore large comment about MAP_PRIVATE handling and massage other
comments
* new patches:
- guard against bugs that could end up with NULL ops in
__mfill_atomic_pte()
- remove redundant check in vm_uffd_ops()
v1: https://lore.kernel.org/all/20260519052516.3315196-1-rppt@kernel.org
Mike Rapoport (Microsoft) (3):
userfaultfd: verify VMA state across UFFDIO_COPY retry
userfaultfd: refuse to __mfill_atomic_pte() for unsupported VMAs
userfaultfd: remove redundant check in vm_uffd_ops()
mm/userfaultfd.c | 92 +++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 79 insertions(+), 13 deletions(-)
--
2.53.0
next reply other threads:[~2026-05-27 18:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-27 18:47 Mike Rapoport [this message]
2026-05-27 18:47 ` [PATCH v2 1/3] userfaultfd: verify VMA state across UFFDIO_COPY retry Mike Rapoport
2026-05-28 13:31 ` Lorenzo Stoakes
2026-05-28 14:41 ` Mike Rapoport
2026-05-28 21:04 ` Andrew Morton
2026-05-27 18:47 ` [PATCH v2 2/3] userfaultfd: refuse to __mfill_atomic_pte() for unsupported VMAs Mike Rapoport
2026-05-27 19:09 ` David CARLIER
2026-05-28 7:33 ` Mike Rapoport
2026-05-28 7:34 ` David CARLIER
2026-05-28 13:11 ` Lorenzo Stoakes
2026-05-27 18:47 ` [PATCH v2 3/3] userfaultfd: remove redundant check in vm_uffd_ops() Mike Rapoport
2026-05-28 13:10 ` Lorenzo Stoakes
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