From: Kiryl Shutsemau <kirill@shutemov.name>
To: Mike Rapoport <rppt@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>,
akpm@linux-foundation.org, peterx@redhat.com, david@kernel.org,
surenb@google.com, vbabka@kernel.org, Liam.Howlett@oracle.com,
ziy@nvidia.com, corbet@lwn.net, skhan@linuxfoundation.org,
seanjc@google.com, pbonzini@redhat.com, jthoughton@google.com,
aarcange@redhat.com, sj@kernel.org, usama.arif@linux.dev,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
kvm@vger.kernel.org, kernel-team@meta.com,
stable@vger.kernel.org
Subject: Re: [PATCH v5 04/18] mm: skip out-of-range bits in mk_vma_flags()
Date: Mon, 1 Jun 2026 15:08:19 +0100 [thread overview]
Message-ID: <ah2SL2c0nMj0KBtP@thinkstation> (raw)
In-Reply-To: <ahsVyQZ5UXhJLct2@kernel.org>
On Sat, May 30, 2026 at 07:52:25PM +0300, Mike Rapoport wrote:
> I have a PoC of yet another alternative:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git/log/?h=uffd/vm-flags
>
> The idea there is to keep a single VMA flag, VMA_UFFD_BIT/VM_UFFD and move
> all the rest into what's now struct vm_userfaultfd_ctx.
Nice!
I assume it can go on top what I did, right?
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2026-06-01 14:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-26 13:04 [PATCH v5 00/18] userfaultfd: working set tracking for VM guest memory Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 01/18] fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 02/18] mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 03/18] userfaultfd: gate must_wait writability check on pte_present() Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 04/18] mm: skip out-of-range bits in mk_vma_flags() Kiryl Shutsemau
2026-05-29 14:00 ` Lorenzo Stoakes
2026-05-29 16:09 ` Kiryl Shutsemau
2026-06-01 9:37 ` Lorenzo Stoakes
2026-05-30 16:52 ` Mike Rapoport
2026-06-01 7:42 ` Lorenzo Stoakes
2026-06-01 14:08 ` Kiryl Shutsemau [this message]
2026-06-01 14:28 ` Mike Rapoport
2026-05-26 13:04 ` [PATCH v5 05/18] mm: decouple protnone helpers from CONFIG_NUMA_BALANCING Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 06/18] mm: rename uffd-wp PTE bit macros to uffd Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 07/18] mm: rename uffd-wp PTE accessors " Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 08/18] mm: add VM_UFFD_RWP VMA flag Kiryl Shutsemau
2026-05-29 7:24 ` Lorenzo Stoakes
2026-05-29 13:07 ` Kiryl Shutsemau
2026-05-29 14:00 ` Lorenzo Stoakes
2026-05-26 13:04 ` [PATCH v5 09/18] mm: add MM_CP_UFFD_RWP change_protection() flag Kiryl Shutsemau
2026-05-29 1:19 ` SeongJae Park
2026-05-26 13:04 ` [PATCH v5 10/18] mm: preserve RWP marker across PTE rewrites Kiryl Shutsemau
2026-05-26 13:04 ` [PATCH v5 11/18] mm: handle VM_UFFD_RWP in khugepaged, rmap, and GUP Kiryl Shutsemau
2026-05-26 13:05 ` [PATCH v5 12/18] userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing Kiryl Shutsemau
2026-05-26 13:05 ` [PATCH v5 13/18] mm/userfaultfd: add RWP fault delivery and expose UFFDIO_REGISTER_MODE_RWP Kiryl Shutsemau
2026-05-26 13:05 ` [PATCH v5 14/18] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking Kiryl Shutsemau
2026-05-26 13:05 ` [PATCH v5 15/18] userfaultfd: add UFFD_FEATURE_RWP_ASYNC for async fault resolution Kiryl Shutsemau
2026-05-26 13:05 ` [PATCH v5 16/18] userfaultfd: add UFFDIO_SET_MODE for runtime sync/async toggle Kiryl Shutsemau
2026-05-26 13:05 ` [PATCH v5 17/18] selftests/mm: add userfaultfd RWP tests Kiryl Shutsemau
2026-05-26 13:05 ` [PATCH v5 18/18] Documentation/userfaultfd: document RWP working set tracking Kiryl Shutsemau
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