memory management · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>

Paths

• F mm/
• F tools/mm/

Last 30 days

Most active threads (last 7 days)

• WARM1d [PATCH v8 00/10] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory
  2026-09-17 05:31 · 6 replies in 7d · Wen Jiang <hidden>
• WARM3d [PATCH RFC POC 00/50] file: handle files on syscall exit
  2026-09-15 11:34 · 1 reply in 7d · Christian Brauner <brauner@kernel.org>

Active reviewers (last 30 days)

• Artem Kuzin <hidden>
  7 attestations (5 Acked-by, 2 Co-developed-by) · last on 2026-08-27
• Alexander Grubnikov <hidden>
  7 attestations (7 Acked-by) · last on 2026-08-27
• Ilya Hanov <hidden>
  7 attestations (7 Acked-by) · last on 2026-08-27
• Denis Darvish <hidden>
  7 attestations (7 Acked-by) · last on 2026-08-27
• Xueyuan Chen <hidden>
  5 attestations (5 Tested-by) · last on 2026-09-17
• Leo Yan <leo.yan@arm.com>
  5 attestations (5 Tested-by) · last on 2026-09-17
• Uladzislau Rezki (Sony) <urezki@gmail.com>
  5 attestations (5 Reviewed-by) · last on 2026-09-17
• Dev Jain <dev.jain@arm.com>
  4 attestations (1 Co-developed-by, 2 Reviewed-by, 1 Suggested-by) · last on 2026-09-17
• Mike Rapoport (Microsoft) <rppt@kernel.org>
  3 attestations (3 Acked-by) · last on 2026-09-07
• David Hildenbrand <david@kernel.org>
  3 attestations (2 Acked-by, 1 Suggested-by) · last on 2026-09-01

Recent patches

Most-recent 30 patches in this subsystem on linux-arm-kernel (capped at 30), ordered by date desc.

• WARM1d REVIEWED: 6 (5M) [PATCH v8 10/10] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-09-17 · Wen Jiang <hidden>
• WARM1d REVIEWED: 2 (1M) [PATCH v8 09/10] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-09-17 · Wen Jiang <hidden>
• WARM1d REVIEWED: 2 (1M) [PATCH v8 08/10] mm/vmalloc: extract vm_shift() to consolidate mapping shift selection
  2026-09-17 · Wen Jiang <hidden>
• WARM1d REVIEWED: 3 (2M) [PATCH v8 07/10] mm/vmalloc: extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-09-17 · Wen Jiang <hidden>
• WARM1d REVIEWED: 2 (1M) [PATCH v8 06/10] mm/vmalloc: extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-09-17 · Wen Jiang <hidden>
• WARM1d [PATCH v8 03/10] mm/vmalloc: use pte_set_huge()/pte_clear_huge() for PTE-level block mappings
  2026-09-17 · Wen Jiang <hidden>
• WARM3d [PATCH RFC POC 25/50] file: reimplement FD_PREPARE() on the deferred fd_prepare() path
  2026-09-15 · Christian Brauner <brauner@kernel.org>
• COOLING9d [PATCH 1/3] mm: define generic pudp_invalidate() implementation
  2026-09-09 · Jinjiang Tu <hidden>
• COOLING5d IN LINUX-NEXT [PATCH v2 3/8] mm/rmap: use folio_page_swap_entry() in ttu_anon_swapbacked_folio()
  2026-09-08 · Tal Zussman <hidden>
• COOLING5d IN LINUX-NEXT [PATCH v2 4/8] mm/zswap: use folio_swap_entry() in zswap_store_page()
  2026-09-08 · Tal Zussman <hidden>
• COOLING5d IN LINUX-NEXT [PATCH v2 2/8] mm/huge_memory: add a comment to the open-coded swap entry
  2026-09-08 · Tal Zussman <hidden>
• COOLING5d IN LINUX-NEXT [PATCH v2 5/8] mm/swapfile: use folio_page_swap_entry()
  2026-09-08 · Tal Zussman <hidden>
• WARM2d REVIEWED: 11 (11M) [PATCH V2 01/14] mm: Add read-write accessors for vm_page_prot
  2026-09-07 · Anshuman Khandual <hidden>
• WARM1d IN LINUX-NEXT [PATCH v3 5/6] mm/execmem: use VM_FLUSH_RESET_PERMS for ROX cache allocations
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v3 4/6] mm/vmalloc: make set_area_direct_map HUGE_VMAP friendly
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM1d IN LINUX-NEXT: 3 (3M) [PATCH v3 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM1d IN LINUX-NEXT: 3 (3M) [PATCH v3 2/6] mm/vmalloc: set area's page_order after allocation succeeds
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v3 1/6] set_memory: add number of pages parameter to set_direct_map APIs
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COOLING8d [RFC PATCH 3/3] luo: memfd: Move to feature flags instead of compatibility strings
  2026-09-03 · Logan Odell <hidden>
• COOLING11d [PATCH v9 01/10] memblock: Introduce MEMBLOCK_LLMAP
  2026-09-02 · Vincent Donnefort <hidden>
• HOTtoday REVIEWED: 1 (0M) [PATCH v6 06/10] memblock: introduce MEMBLOCK_NODUMP flag
  2026-09-02 · Wandun Chen <hidden>
• HOTtoday [PATCH v6 01/10] mm: memblock: add missing HugeTLB flag name
  2026-09-02 · Wandun Chen <hidden>
• COOLING9d [PATCH v7 1/3] mm: make persistent huge zero folio read-only
  2026-09-01 · Xueyuan Chen <hidden>
• COLD19d IN LINUX-NEXT: 27 (27M) [PATCH 2/8] mm: Stop using pxd_ERROR()
  2026-08-31 · Anshuman Khandual <hidden>
• COLD19d IN LINUX-NEXT: 27 (27M) [PATCH 1/8] mm: Make ptval_to_str() generally available
  2026-08-31 · Anshuman Khandual <hidden>
• COLD19d [PATCH 5/8] mm/swapfile: use folio_page_swap_entry()
  2026-08-30 · Tal Zussman <hidden>
• COLD19d [PATCH 3/8] mm/rmap: use folio_page_swap_entry() in ttu_anon_swapbacked_folio()
  2026-08-30 · Tal Zussman <hidden>
• COLD19d [PATCH 4/8] mm/zswap: convert the store path to take a folio and index
  2026-08-30 · Tal Zussman <hidden>
• COLD19d [PATCH 2/8] mm/huge_memory: use folio_swap_entry() when splitting a swapcache folio
  2026-08-30 · Tal Zussman <hidden>
• COLD18d [RFC 02/10] mm/vmalloc: Skip vmallocinfo NUMA stats for VM_SPARSE
  2026-08-27 · David Stevens <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE160d REVIEWED: 7 (7M) [PATCH v4 21/21] mm: on remap assert that input range within the proposed VMA
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org> · 1 Reviewed-by
• STALE143d REVIEWED: 9 (9M) [PATCH v2 6/6] mm: change to return bool for the MMU notifier's young flag check
  2026-03-21 · Baolin Wang <baolin.wang@linux.alibaba.com> · 1 Reviewed-by
• STALE66d REVIEWED: 11 (11M) [PATCH mm-hotfixes v2 1/4] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-12 · Lorenzo Stoakes <ljs@kernel.org> · 1 Reviewed-by
• STALE66d REVIEWED: 11 (11M) [PATCH mm-hotfixes v2 3/4] mm/ptdump: always stabilise against page table freeing using init_mm
  2026-07-12 · Lorenzo Stoakes <ljs@kernel.org> · 1 Reviewed-by
• STALE65d REVIEWED: 12 (12M) [PATCH mm-hotfixes v3 1/4] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-14 · Lorenzo Stoakes <ljs@kernel.org> · 2 Reviewed-by
• STALE65d REVIEWED: 11 (11M) [PATCH mm-hotfixes v3 3/4] mm/ptdump: always stabilise against page table freeing using init_mm
  2026-07-14 · Lorenzo Stoakes <ljs@kernel.org> · 1 Reviewed-by
• COLD21d REVIEWED: 3 (3M) [PATCH v2 2/6] mm/vmalloc: set area's page_order after allocation succeeds
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org> · 1 Reviewed-by
• COLD21d REVIEWED: 3 (3M) [PATCH v2 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org> · 1 Reviewed-by
• COOLING12d REVIEWED: 4 (0M) [RFC PATCH 11/18] mm: enable per-NUMA node kernel text and rodata replication
  2026-08-27 · Nikita Panov <hidden> · 4 Acked-by
• COOLING12d REVIEWED: 4 (0M) [RFC PATCH 01/18] mm: arm64 add Kconfig option for kernel replication
  2026-08-27 · Nikita Panov <hidden> · 4 Acked-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE187d [PATCH v5 01/15] mm/kasan: add conditional checks in functions to return directly if kasan is disabled
  2026-02-25 · Baoquan He <hidden>
• STALE187d [PATCH v5 02/15] mm/kasan: rename 'kasan_arg' to 'kasan_arg_disabled'
  2026-02-25 · Baoquan He <hidden>
• STALE187d [PATCH v5 03/15] mm/kasan: mm/kasan: move kasan= code to common place
  2026-02-25 · Baoquan He <hidden>
• STALE187d [PATCH v5 04/15] mm/kasan: make kasan=on|off take effect for all three modes
  2026-02-25 · Baoquan He <hidden>
• STALE187d [PATCH v5 05/15] mm/kasan/sw_tags: don't initialize kasan if it's disabled
  2026-02-25 · Baoquan He <hidden>
• STALE187d [PATCH v5 15/15] mm/kasan: clean up unneeded ARCH_DEFER_KASAN and kasan_arch_is_ready
  2026-02-25 · Baoquan He <hidden>
• STALE137d [PATCH v6 11/30] memblock: Move INIT_MEMBLOCK_* macros to header
  2026-02-27 · Kevin Brodsky <hidden>
• STALE137d [PATCH v6 13/30] mm: kpkeys: Introduce kpkeys_hardened_pgtables feature
  2026-02-27 · Kevin Brodsky <hidden>
• STALE137d [PATCH v6 14/30] mm: kpkeys: Introduce block-based page table allocator
  2026-02-27 · Kevin Brodsky <hidden>
• STALE137d [PATCH v6 15/30] mm: kpkeys: Handle splitting of linear map
  2026-02-27 · Kevin Brodsky <hidden>