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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

  parent reply	other threads:[~2026-06-01 14:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260526130509.2748441-1-kirill@shutemov.name>
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

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