Re: [PATCH v6 08/26] fs/dax: Remove PAGE_MAPPING_DAX_SHARED mapping flag

[PATCH v6 00/26] fs/dax: Fix ZONE_DEVICE page reference counts · Alistair Popple <apopple@nvidia.com> · 2025-01-10
[PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Vivek Goyal <vgoyal@redhat.com> · 2025-02-05
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Dan Williams <hidden> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Asahi Lina <hidden> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Dan Williams <hidden> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Asahi Lina <hidden> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Vivek Goyal <vgoyal@redhat.com> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Stefan Hajnoczi <stefanha@redhat.com> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Albert Esteve <hidden> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Stefan Hajnoczi <stefanha@redhat.com> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · David Hildenbrand <hidden> · 2025-02-06
Re: [PATCH v6 01/26] fuse: Fix dax truncate/punch_hole fault path · Albert Esteve <hidden> · 2025-02-07
[PATCH v6 02/26] fs/dax: Return unmapped busy pages from dax_layout_busy_page_range() · Alistair Popple <apopple@nvidia.com> · 2025-01-10
[PATCH v6 03/26] fs/dax: Don't skip locked entries when scanning entries · Alistair Popple <apopple@nvidia.com> · 2025-01-10
[PATCH v6 04/26] fs/dax: Refactor wait for dax idle page · Alistair Popple <apopple@nvidia.com> · 2025-01-10
[PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts · "Darrick J. Wong" <djwong@kernel.org> · 2025-01-10
Re: [PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts · Alistair Popple <apopple@nvidia.com> · 2025-01-13
Re: [PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts · "Darrick J. Wong" <djwong@kernel.org> · 2025-01-13
Re: [PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts · Dan Williams <hidden> · 2025-01-13
Re: [PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts · Dan Williams <hidden> · 2025-01-13
Re: [PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts · Dan Williams <hidden> · 2025-01-14
[PATCH v6 06/26] fs/dax: Always remove DAX page-cache entries when breaking layouts · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 06/26] fs/dax: Always remove DAX page-cache entries when breaking layouts · Dan Williams <hidden> · 2025-01-13
[PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount · "Darrick J. Wong" <djwong@kernel.org> · 2025-01-10
Re: [PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount · Alistair Popple <apopple@nvidia.com> · 2025-01-13
Re: [PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount · "Darrick J. Wong" <djwong@kernel.org> · 2025-01-13
Re: [PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount · Alistair Popple <apopple@nvidia.com> · 2025-01-13
Re: [PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount · "Darrick J. Wong" <djwong@kernel.org> · 2025-01-13
Re: [PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount · Dan Williams <hidden> · 2025-01-13
[PATCH v6 08/26] fs/dax: Remove PAGE_MAPPING_DAX_SHARED mapping flag · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 08/26] fs/dax: Remove PAGE_MAPPING_DAX_SHARED mapping flag · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 08/26] fs/dax: Remove PAGE_MAPPING_DAX_SHARED mapping flag · Alistair Popple <apopple@nvidia.com> · 2025-01-15
Re: [PATCH v6 08/26] fs/dax: Remove PAGE_MAPPING_DAX_SHARED mapping flag · Dan Williams <hidden> · 2025-01-15
Re: [PATCH v6 08/26] fs/dax: Remove PAGE_MAPPING_DAX_SHARED mapping flag · Alistair Popple <apopple@nvidia.com> · 2025-01-17
Re: [PATCH v6 08/26] fs/dax: Remove PAGE_MAPPING_DAX_SHARED mapping flag · David Hildenbrand <hidden> · 2025-01-14
[PATCH v6 09/26] mm/gup: Remove redundant check for PCI P2PDMA page · Alistair Popple <apopple@nvidia.com> · 2025-01-10
[PATCH v6 10/26] mm/mm_init: Move p2pdma page refcount initialisation to p2pdma · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 10/26] mm/mm_init: Move p2pdma page refcount initialisation to p2pdma · David Hildenbrand <hidden> · 2025-01-14
[PATCH v6 11/26] mm: Allow compound zone device pages · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 11/26] mm: Allow compound zone device pages · David Hildenbrand <hidden> · 2025-01-14
Re: [PATCH v6 11/26] mm: Allow compound zone device pages · Alistair Popple <apopple@nvidia.com> · 2025-01-17
[PATCH v6 12/26] mm/memory: Enhance insert_page_into_pte_locked() to create writable mappings · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 12/26] mm/memory: Enhance insert_page_into_pte_locked() to create writable mappings · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 12/26] mm/memory: Enhance insert_page_into_pte_locked() to create writable mappings · Alistair Popple <apopple@nvidia.com> · 2025-01-15
Re: [PATCH v6 12/26] mm/memory: Enhance insert_page_into_pte_locked() to create writable mappings · David Hildenbrand <hidden> · 2025-01-14
[PATCH v6 13/26] mm/memory: Add vmf_insert_page_mkwrite() · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 13/26] mm/memory: Add vmf_insert_page_mkwrite() · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 13/26] mm/memory: Add vmf_insert_page_mkwrite() · David Hildenbrand <hidden> · 2025-01-14
Re: [PATCH v6 13/26] mm/memory: Add vmf_insert_page_mkwrite() · Alistair Popple <apopple@nvidia.com> · 2025-01-15
[PATCH v6 14/26] rmap: Add support for PUD sized mappings to rmap · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 14/26] rmap: Add support for PUD sized mappings to rmap · Dan Williams <hidden> · 2025-01-14
[PATCH v6 15/26] huge_memory: Add vmf_insert_folio_pud() · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 15/26] huge_memory: Add vmf_insert_folio_pud() · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 15/26] huge_memory: Add vmf_insert_folio_pud() · David Hildenbrand <hidden> · 2025-01-14
Re: [PATCH v6 15/26] huge_memory: Add vmf_insert_folio_pud() · Alistair Popple <apopple@nvidia.com> · 2025-01-15
[PATCH v6 16/26] huge_memory: Add vmf_insert_folio_pmd() · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 16/26] huge_memory: Add vmf_insert_folio_pmd() · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 16/26] huge_memory: Add vmf_insert_folio_pmd() · David Hildenbrand <hidden> · 2025-01-14
Re: [PATCH v6 16/26] huge_memory: Add vmf_insert_folio_pmd() · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 16/26] huge_memory: Add vmf_insert_folio_pmd() · Alistair Popple <apopple@nvidia.com> · 2025-01-15
[PATCH v6 17/26] memremap: Add is_devdax_page() and is_fsdax_page() helpers · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 17/26] memremap: Add is_devdax_page() and is_fsdax_page() helpers · Dan Williams <hidden> · 2025-01-14
[PATCH v6 18/26] mm/gup: Don't allow FOLL_LONGTERM pinning of FS DAX pages · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 18/26] mm/gup: Don't allow FOLL_LONGTERM pinning of FS DAX pages · Dan Williams <hidden> · 2025-01-14
[PATCH v6 19/26] proc/task_mmu: Mark devdax and fsdax pages as always unpinned · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 19/26] proc/task_mmu: Mark devdax and fsdax pages as always unpinned · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 19/26] proc/task_mmu: Mark devdax and fsdax pages as always unpinned · David Hildenbrand <hidden> · 2025-01-14
Re: [PATCH v6 19/26] proc/task_mmu: Mark devdax and fsdax pages as always unpinned · Alistair Popple <apopple@nvidia.com> · 2025-01-17
[PATCH v6 20/26] mm/mlock: Skip ZONE_DEVICE PMDs during mlock · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 20/26] mm/mlock: Skip ZONE_DEVICE PMDs during mlock · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 20/26] mm/mlock: Skip ZONE_DEVICE PMDs during mlock · Alistair Popple <apopple@nvidia.com> · 2025-01-17
[PATCH v6 21/26] fs/dax: Properly refcount fs dax pages · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 21/26] fs/dax: Properly refcount fs dax pages · "Darrick J. Wong" <djwong@kernel.org> · 2025-01-10
Re: [PATCH v6 21/26] fs/dax: Properly refcount fs dax pages · Alistair Popple <apopple@nvidia.com> · 2025-01-13
Re: [PATCH v6 21/26] fs/dax: Properly refcount fs dax pages · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 21/26] fs/dax: Properly refcount fs dax pages · Alistair Popple <apopple@nvidia.com> · 2025-02-07
Re: [PATCH v6 21/26] fs/dax: Properly refcount fs dax pages · Dan Williams <hidden> · 2025-02-07
Re: [PATCH v6 21/26] fs/dax: Properly refcount fs dax pages · Alistair Popple <apopple@nvidia.com> · 2025-02-09
[PATCH v6 22/26] device/dax: Properly refcount device dax pages when mapping · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 22/26] device/dax: Properly refcount device dax pages when mapping · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 22/26] device/dax: Properly refcount device dax pages when mapping · Alistair Popple <apopple@nvidia.com> · 2025-02-03
[PATCH v6 23/26] mm: Remove pXX_devmap callers · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 23/26] mm: Remove pXX_devmap callers · Dan Williams <hidden> · 2025-01-14
Re: [PATCH v6 23/26] mm: Remove pXX_devmap callers · Alistair Popple <apopple@nvidia.com> · 2025-01-15
Re: [PATCH v6 23/26] mm: Remove pXX_devmap callers · Dan Williams <hidden> · 2025-02-04
Re: [PATCH v6 23/26] mm: Remove pXX_devmap callers · Alistair Popple <apopple@nvidia.com> · 2025-02-05
[PATCH v6 24/26] mm: Remove devmap related functions and page table bits · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 24/26] mm: Remove devmap related functions and page table bits · Huacai Chen <chenhuacai@kernel.org> · 2025-01-11
Re: [PATCH v6 24/26] mm: Remove devmap related functions and page table bits · Dan Williams <hidden> · 2025-01-14
[PATCH v6 25/26] Revert "riscv: mm: Add support for ZONE_DEVICE" · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 25/26] Revert "riscv: mm: Add support for ZONE_DEVICE" · Dan Williams <hidden> · 2025-01-14
[PATCH v6 26/26] Revert "LoongArch: Add ARCH_HAS_PTE_DEVMAP support" · Alistair Popple <apopple@nvidia.com> · 2025-01-10
Re: [PATCH v6 00/26] fs/dax: Fix ZONE_DEVICE page reference counts · Dan Williams <hidden> · 2025-01-10
Re: [PATCH v6 00/26] fs/dax: Fix ZONE_DEVICE page reference counts · Andrew Morton <akpm@linux-foundation.org> · 2025-01-11
Re: [PATCH v6 00/26] fs/dax: Fix ZONE_DEVICE page reference counts · Dan Williams <hidden> · 2025-01-11
Re: [PATCH v6 00/26] fs/dax: Fix ZONE_DEVICE page reference counts · Alistair Popple <apopple@nvidia.com> · 2025-01-13

From: David Hildenbrand <hidden>
Date: 2025-01-14 14:47:52
Also in: linux-arm-kernel, linux-cxl, linux-doc, linux-ext4, linux-fsdevel, linux-mm, linux-xfs, lkml, loongarch, nvdimm

On 10.01.25 07:00, Alistair Popple wrote:

PAGE_MAPPING_DAX_SHARED is the same as PAGE_MAPPING_ANON. This isn't
currently a problem because FS DAX pages are treated
specially. However a future change will make FS DAX pages more like
normal pages, so folio_test_anon() must not return true for a FS DAX
page.

Yes, very nice to see PAGE_MAPPING_DAX_SHARED go!

-- 
Cheers,

David / dhildenb

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