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 329EA3B42CD for ; Sat, 3 Oct 2026 23:34:46 +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=1791070489; cv=none; b=oKxR8/zHe5s9TG3SJZHRMsQayi10cS/bAeeJ6revTeGyzFXcHw0gYFWZLOuoEt7fhKxmwn8XIoExiKSX2QC/Zpm9K4Z24gUnJmJj6fuXLwdSi0e9q/XgITZymtEIPNUKndmXU1aVUooDg0brh5aN0Ikxk2aI114HQGeqbJUG9ZM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791070489; c=relaxed/simple; bh=RjVTl6HT7JTDiUw7yLyKcVPM4/7kG3PImX5wMOpKj8Y=; h=Date:To:From:Subject:Message-Id; b=IRA/ha4wLWrAKQbUZk+NZWkD96rHhPZhAickPtrfpeAKrY9X3smfHn+3YbNNf/lq5VAL6tBWBsXFA/y4tHMTyECODTOSuc6GEeW1JX3RKYtyUiv8bPRZzW5TRgenCHVthATuiQt4R94/rz9kR2Fm8bTPv1A3H2ztzmo+AexWXmc= 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=JgiROV39; 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="JgiROV39" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C29841F0089B; Sat, 3 Oct 2026 23:34:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791070486; bh=Mcw7EYvYKlExCvpxcITzOdtwZkYSxEcTCrQBX8OFIvU=; h=Date:To:From:Subject; b=JgiROV39t816z606lC7evMsJO3R/AyKFUMIxgG0H8D9pDK1cq8AdZ6Tn4AQbRVviK 2uzfkxSiq7QzGeBJ8EEWn0jwiYsltSHwS5Co9b2XOLXiigvrSbzRbNpq6Q2/Lj2doZ kZTAglq193/DLdLt8PZRCXbIwKvTS+3yHf4uTH1U= Date: Sat, 03 Oct 2026 16:34:46 -0700 To: mm-commits@vger.kernel.org,ljs@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-vma-tidy-up-map-kernel-pages-enum-values.patch added to mm-unstable branch Message-Id: <20261003233446.C29841F0089B@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/vma: tidy up map kernel pages enum values has been added to the -mm mm-unstable branch. Its filename is mm-vma-tidy-up-map-kernel-pages-enum-values.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vma-tidy-up-map-kernel-pages-enum-values.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: "Lorenzo Stoakes (ARM)" Subject: mm/vma: tidy up map kernel pages enum values Date: Sat, 03 Oct 2026 17:32:37 +0100 MMAP_MAP_KERNEL_PAGES is a mouthful, discard the MAP_ as that's implied by MMAP. Also while we're here delete useless comments for mmap actions whose names clearly indicate what they are for. Also update the userland VMA tests to reflect this change. No functional change intended. Link: https://lore.kernel.org/20261003-b4-mmap-prepare-vma-flag-sanify-v4-6-a1f052500fd7@kernel.org Signed-off-by: Lorenzo Stoakes (ARM) Signed-off-by: Andrew Morton Reviewed-by: Suren Baghdasaryan Reviewed-by: Zi Yan Reviewed-by: Gregory Price (Meta) Acked-by: David Hildenbrand (Arm) Cc: Liam R. Howlett Cc: Vlastimil Babka Cc: Jann Horn Cc: Pedro Falcato Cc: Mike Rapoport Cc: Michal Hocko Cc: Jonathan Corbet Cc: Greg Kroah-Hartman Cc: Dennis Dalessandro Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Paul Moore Cc: Stephen Smalley Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: Andrii Nakryiko Cc: Eduard Zingerman Cc: Kumar Kartikeya Dwivedi Cc: Baolin Wang Cc: Nico Pache Cc: Ryan Roberts Cc: Dev Jain Cc: Barry Song Cc: Lance Yang Cc: Usama Arif Cc: Kiryl Shutsemau Cc: Doug Gilbert Cc: James Bottomley Cc: Martin K. Petersen Cc: Simona Vetter Cc: Helge Deller Cc: Sebastian Reichel Cc: John Hubbard Cc: Peter Xu Cc: Masami Hiramatsu Cc: Oleg Nesterov Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: Arnaldo Carvalho de Melo Cc: Namhyung Kim Cc: Mark Rutland Cc: Rik van Riel Cc: Harry Yoo Cc: Juri Lelli Cc: Vincent Guittot Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: David Airlie Cc: Will Deacon Cc: Aneesh Kumar K.V Cc: Nicholas Piggin Cc: Arnd Bergmann Cc: Muchun Song Cc: Oscar Salvador Cc: Matthew Wilcox (Oracle) Cc: Jan Kara Cc: Marc Zyngier Cc: Oliver Upton Cc: Catalin Marinas Cc: Madhavan Srinivasan Cc: Anup Patel Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: Christian Borntraeger Cc: Janosch Frank Cc: Claudio Imbrenda Cc: Alexander Gordeev Cc: Gerald Schaefer Cc: Heiko Carstens Cc: Vasily Gorbik Cc: David S. Miller Cc: Andreas Larsson Cc: Al Viro Cc: Christian Brauner Cc: Matthew Brost Cc: Joshua Hahn Cc: Rakie Kim Cc: Byungchul Park Cc: Ying Huang Cc: Alistair Popple Cc: Chris Li Cc: Kairui Song Cc: Kemeng Shi Cc: Nhat Pham Cc: Baoquan He Cc: Youngjun Park Cc: Johannes Weiner Cc: Qi Zheng Cc: Shakeel Butt Cc: Axel Rasmussen Cc: Yuanchu Xie Cc: Wei Xu Cc: Chengming Zhou Cc: Michal Hocko Cc: Miklos Szeredi Cc: Xu Xin --- include/linux/mm.h | 2 +- include/linux/mm_types.h | 8 ++++---- mm/util.c | 8 ++++---- tools/testing/vma/include/dup.h | 8 ++++---- 4 files changed, 13 insertions(+), 13 deletions(-) --- a/include/linux/mm.h~mm-vma-tidy-up-map-kernel-pages-enum-values +++ a/include/linux/mm.h @@ -4630,7 +4630,7 @@ static inline void mmap_action_map_kerne { struct mmap_action *action = &desc->action; - action->type = MMAP_MAP_KERNEL_PAGES; + action->type = MMAP_KERNEL_PAGES; action->map_kernel.start = start; action->map_kernel.pages = pages; action->map_kernel.nr_pages = nr_pages; --- a/include/linux/mm_types.h~mm-vma-tidy-up-map-kernel-pages-enum-values +++ a/include/linux/mm_types.h @@ -815,11 +815,11 @@ struct pfnmap_track_ctx { /* What action should be taken after an .mmap_prepare call is complete? */ enum mmap_action_type { - MMAP_NOTHING, /* Mapping is complete, no further action. */ - MMAP_REMAP_PFN, /* Remap PFN range. */ - MMAP_IO_REMAP_PFN, /* I/O remap PFN range. */ + MMAP_NOTHING, + MMAP_REMAP_PFN, + MMAP_IO_REMAP_PFN, MMAP_SIMPLE_IO_REMAP, /* I/O remap with guardrails. */ - MMAP_MAP_KERNEL_PAGES, /* Map kernel page range from array. */ + MMAP_KERNEL_PAGES, /* Map kernel page range from array. */ }; /* --- a/mm/util.c~mm-vma-tidy-up-map-kernel-pages-enum-values +++ a/mm/util.c @@ -1467,7 +1467,7 @@ int mmap_action_prepare(struct vm_area_d return io_remap_pfn_range_prepare(desc); case MMAP_SIMPLE_IO_REMAP: return simple_ioremap_prepare(desc); - case MMAP_MAP_KERNEL_PAGES: + case MMAP_KERNEL_PAGES: return map_kernel_pages_prepare(desc); } @@ -1498,7 +1498,7 @@ int mmap_action_complete(struct vm_area_ case MMAP_REMAP_PFN: err = remap_pfn_range_complete(vma, action); break; - case MMAP_MAP_KERNEL_PAGES: + case MMAP_KERNEL_PAGES: err = map_kernel_pages_complete(vma, action); break; case MMAP_IO_REMAP_PFN: @@ -1521,7 +1521,7 @@ int mmap_action_prepare(struct vm_area_d case MMAP_REMAP_PFN: case MMAP_IO_REMAP_PFN: case MMAP_SIMPLE_IO_REMAP: - case MMAP_MAP_KERNEL_PAGES: + case MMAP_KERNEL_PAGES: WARN_ON_ONCE(1); /* nommu cannot handle these. */ break; } @@ -1542,7 +1542,7 @@ int mmap_action_complete(struct vm_area_ case MMAP_REMAP_PFN: case MMAP_IO_REMAP_PFN: case MMAP_SIMPLE_IO_REMAP: - case MMAP_MAP_KERNEL_PAGES: + case MMAP_KERNEL_PAGES: WARN_ON_ONCE(1); /* nommu cannot handle this. */ err = -EINVAL; --- a/tools/testing/vma/include/dup.h~mm-vma-tidy-up-map-kernel-pages-enum-values +++ a/tools/testing/vma/include/dup.h @@ -454,11 +454,11 @@ static __always_inline bool vma_flags_em /* What action should be taken after an .mmap_prepare call is complete? */ enum mmap_action_type { - MMAP_NOTHING, /* Mapping is complete, no further action. */ - MMAP_REMAP_PFN, /* Remap PFN range. */ - MMAP_IO_REMAP_PFN, /* I/O remap PFN range. */ + MMAP_NOTHING, + MMAP_REMAP_PFN, + MMAP_IO_REMAP_PFN, MMAP_SIMPLE_IO_REMAP, /* I/O remap with guardrails. */ - MMAP_MAP_KERNEL_PAGES, /* Map kernel page range from an array. */ + MMAP_KERNEL_PAGES, /* Map kernel page range from array. */ }; /* _ Patches currently in -mm which might be from ljs@kernel.org are mm-mremap-fix-locked_vm-leak-from-mremap_dontunmap-self-merge.patch mm-mremap-fix-locked_vm-leak-by-splitting-vma-for-mremap_dontunmap.patch drivers-char-mem-mmap-readonly-map_shared-dev-zero-correctly.patch 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-khugepaged-deposit-a-newly-allocated-page-table-on-collapse.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-userland-pgtable-freeing-is-rcu-safe-now-remove-leftover-bits.patch mm-change-the-contract-for-free_pgtables-update-docs.patch mm-vma-fix-mmap_prepare-file-handling-remove-file_doesnt_need_get.patch mm-vma-introduce-and-use-vma_can_merge.patch mm-consistently-validate-vma-state-after-mmap-hooks.patch mm-vma-ensure-mmap_prepare-doesnt-set-actions-on-a-mergeable-vma.patch mm-make-map_kernel_pages_-internal-and-unexported.patch mm-vma-tidy-up-map-kernel-pages-enum-values.patch mm-add-mmap-action-for-discontiguous-kernel-page-mapping.patch docs-filesystems-update-mmap_prepare-docs-for-discontig-kernel-pgs.patch drivers-usb-mon-update-to-use-mmap_prepare-map-kernel-pages.patch infiniband-update-hfi1-to-use-remap_vmalloc_range.patch selinux-reject-writable-opens-of-policy-file-drop-mmap-shared-write-check.patch alsa-pcm-use-vm_insert_page-to-map-pcm-status-page.patch bpf-arena-mark-arena_map_mmap-mappings-vm_mixedmap.patch mm-vma-add-vma_is_mm_managed-predicates.patch mm-vma-only-allow-mmap-to-clear-vma_maywrite_bit-if-not-mm-managed.patch mm-vma-add-and-use-vma__is_fixed_mapping.patch scsi-sg-convert-mmap-hook-to-mmap_prepare-and-rework.patch fbdev-defio-assert-fbinfo_virtfb-drop-vm_io-add-vm_mixedmap.patch hsi-cmt_speech-convert-mmap-hook-to-mmap_prepare-refactor.patch mm-gup-error-out-early-on-vma_mayread_bit-vmas.patch uprobes-remove-vm_io-set-vm_mixedmap-for-mapped-kernel-pages.patch mm-mlock-clear-vma_locked_mask-over-mmap-callback.patch mm-mlock-eliminate-weird-vma_io_bit-abuse-and-simplify.patch mm-vma-enforce-that-mm-managed-mappings-may-not-set-vma_io_bit.patch mm-remove-vma_io_bit-check-in-vma_is_mm_managed.patch mm-remove-hugetlb_inlineh.patch mm-rename-is_vm_hugetlb_page-to-vma_is_hugetlb.patch mm-drop-some-redundant-checks-around-hugetlb-vmas.patch mm-madvise-update-is_valid_guard_vma-to-use-vma_can_merge.patch mm-vma-introduce-vma_is_mm_backed.patch mm-uffd-use-predicates-for-userfaultfd-checks.patch mm-madvise-use-predicates-for-madvise-madv_dofork.patch mm-eliminate-vma_special_flags-usage-when-hugetlb-explicitly-tested.patch mm-eliminate-vma_special_flags-check-in-lru_gen_look_around.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-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 mm-vma-dont-remove-vma-from-rmap-if-pgoff-unchanged.patch