From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1FDCD49EC6E for ; Thu, 17 Sep 2026 21:10:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789679433; cv=none; b=pRhbUBOe0Nq2cj2r8+HQUQTduUn97oRFiIocI8Q36/w865Y2grNsWCP0zHnAOOas3STwiwObhZPOy6qPRBKrB2jRpaOyeNUYAjjEIx70OrSKvQ+F9h9gNzJONyDL78i+lMzxPb7B9I1yLCWPK3F4YFCG3zMJ9VLZ5Ec10gMdt2w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789679433; c=relaxed/simple; bh=i/e0qQfBxDsVoPGRHgv3bNBtC4HBI4KbczcWEYTpIlc=; h=Date:To:From:Subject:Message-Id; b=BvqfBMSCMobnDqqhuvV0/Ujc1mcuyofJ7bhtTC2/AUbABDAo350SASHu+Zfrk7PfPcqlrJB21J2lMsqCt+MCG+rEQ484TcVllJAW7SJwhz9XaQAdOSsK6OMInCZk9Eazt7fMEosk2BV8ZVUw3wPzAe9fyOUDxHvQ3H/OyPRY6ew= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=s21HlBH/; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="s21HlBH/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C36871F000FF; Thu, 17 Sep 2026 21:10:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1789679431; bh=vnYxcha1UN5ixWJnT6ee7SWxYQVOMc/Co248uwteG/o=; h=Date:To:From:Subject; b=s21HlBH/OdnXqmNmB6FShY7xGbTwUDOFC5Vt0Ro9id53+950jN+Qv4CvnRZAlbnqP KAeaJfQ3aICabxXMQkw30tNe4k1e9zsMpgio/Nhq/wVKCifwaLTHzXO4kaJY9Xt3wG wDNxHfcMsl0RwbbiPCDpmYF+2M+lsbBUAAE78CJM= Date: Thu, 17 Sep 2026 14:10:31 -0700 To: mm-commits@vger.kernel.org,ljs@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] mm-eliminate-vma_special_flags-check-in-lru_gen_look_around.patch removed from -mm tree Message-Id: <20260917211031.C36871F000FF@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm: eliminate VMA_SPECIAL_FLAGS check in lru_gen_look_around() has been removed from the -mm tree. Its filename was mm-eliminate-vma_special_flags-check-in-lru_gen_look_around.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: "Lorenzo Stoakes (ARM)" Subject: mm: eliminate VMA_SPECIAL_FLAGS check in lru_gen_look_around() Date: Mon, 14 Sep 2026 15:57:55 +0100 A kernel-owned or fixed mapping is one which sets VMA_PFNMAP_BIT, VMA_MIXEDMAP_BIT or VMA_DONTEXPAND_BIT, which is precisely what VMA_SPECIAL_FLAGS tests for other than VMA_IO_BIT, which is safe to drop as only kernel-owned mappings may set it. Using these predicates rather than VMA_SPECIAL_FLAGS makes the check self-documenting and helps eliminate the confusion around 'special' flags. No functional change intended. Link: https://lore.kernel.org/20260914-b4-mmap-prepare-vma-flag-sanify-v2-35-7d9781ed5361@kernel.org Signed-off-by: Lorenzo Stoakes (ARM) Signed-off-by: Andrew Morton --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/vmscan.c~mm-eliminate-vma_special_flags-check-in-lru_gen_look_around +++ a/mm/vmscan.c @@ -4422,8 +4422,8 @@ bool lru_gen_look_around(struct page_vma if (spin_is_contended(pvmw->ptl)) return true; - /* exclude special VMAs containing anon pages from COW */ - if (vma->vm_flags & VM_SPECIAL) + /* exclude kernel-owned and fixed VMAs containing anon pages from COW */ + if (vma_is_kernel_owned(vma) || vma_is_fixed_mapping(vma)) return true; /* avoid taking the LRU lock under the PTL when possible */ _ Patches currently in -mm which might be from ljs@kernel.org are mm-vmpressure-remove-window-size-todo.patch tools-testing-selftests-mm-add-missing-gitignore-entries.patch mm-move-drivers-char-memc-to-mm-char-memc.patch mm-implement-file_is_dev_zero-to-uniquely-identify-dev-zero.patch mm-vma-only-permit-map_private-dev-zero-to-be-mapped-anonymous.patch mm-vma-make-map_private-mapped-dev-zero-mappings-truly-anonymous.patch tools-testing-vma-add-test-to-assert-map_private-dev-zero-is-anon.patch tools-testing-selftests-mm-add-map_private-dev-zero-merge-tests.patch mm-madvise-swap-in-cowd-map_private-file-mappings-on-madv_willneed.patch mm-huge_memory-zap-deposited-page-tables-after-an-rcu-grace-period.patch mm-enable-mmu_gather_rcu_table_free-for-most-2-level-architectures.patch mm-enable-mmu_gather_rcu_table_free-for-mmu-riscv.patch mm-enable-mmu_gather_rcu_table_free-for-mmu-arm.patch mm-enable-mmu_gather_rcu_table_free-for-arc-microblaze-xtensa.patch mm-enable-mmu_gather_rcu_table_free-for-sparc64.patch mm-enable-mmu_gather_rcu_table_free-for-m68k-coldfire.patch mm-enable-mmu_gather_rcu_table_free-for-sh-x2.patch mm-enable-mmu_gather_rcu_table_free-for-m68k-motorola.patch mm-enable-mmu_gather_rcu_table_free-for-sparc32.patch mm-make-userland-page-table-freeing-rcu-safe.patch mm-change-the-contract-for-free_pgtables-update-docs.patch mm-avoid-use-of-vma_special_flags-in-migrate_vma_setup.patch mm-eliminate-vm_special-vma_special_flags.patch fuse-dax-do-not-set-vm_mixedmap.patch mm-huge_memory-remove-vma_is_special_huge.patch mm-vma-introduce-and-use-vma_can_gup.patch mm-vma-const-ify-vma_assert_stabilised-and-associated-functions.patch mm-implement-and-use-vma_has_anon_rmap-silence-kcsan.patch mm-update-comments-to-refer-to-anon-rmap-rather-than-anon_vma.patch