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)

• HOTtoday [PATCH RFC 00/18] arch, mm: create a generic set_memory/change_page_attr core
  2026-07-21 16:26 · 4 replies in 7d · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH mm-hotfixes v5 0/5] mm: fix UAF caused by race between ptdump and vmap pgtable freeing
  2026-07-17 17:31 · 3 replies in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [RFC v2 PATCH 0/16] Optimize this_cpu_*() ops for non-x86 (ARM64 for this series)
  2026-07-15 18:06 · 7 replies in 7d · Yang Shi <hidden>
• COOLING4d [PATCH mm-hotfixes v4 0/4] mm: fix UAF caused by race between ptdump and vmap pgtable freeing
  2026-07-16 21:32 · 3 replies in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d [RFC PATCH v4 0/3] make persistent huge zero folio read-only
  2026-07-18 09:57 · 1 reply in 7d · Xueyuan Chen <hidden>
• HOTtoday IN LINUX-NEXT [PATCH v7 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory
  2026-07-15 12:09 · 5 replies in 7d · Wen Jiang <hidden>
• HOTtoday [PATCH RFC v3 3/6] mm: rename get_user_page_vma_remote() to get_user_page_lookup_vma()
  2026-07-17 17:01 · 0 replies in 7d · Rik van Riel <riel@surriel.com>
• COOLING5d [PATCH v2 00/15] riscv: add Svnapot PTE folding support
  2026-07-16 12:44 · 2 replies in 7d · Yunhui Cui <hidden>

Active reviewers (last 30 days)

• Dev Jain <dev.jain@arm.com>
  17 attestations (3 Co-developed-by, 13 Reviewed-by, 1 Suggested-by) · last on 2026-07-17
• Xueyuan Chen <hidden>
  13 attestations (13 Tested-by) · last on 2026-07-15
• David Hildenbrand <david@kernel.org>
  12 attestations (6 Acked-by, 2 Reported-by, 2 Reviewed-by, 2 Suggested-by) · last on 2026-07-18
• Mike Rapoport (Microsoft) <rppt@kernel.org>
  12 attestations (4 Acked-by, 8 Reviewed-by) · last on 2026-07-17
• Leo Yan <leo.yan@arm.com>
  9 attestations (9 Tested-by) · last on 2026-07-15
• Kiryl Shutsemau (Meta) <kas@kernel.org>
  7 attestations (3 Acked-by, 4 Reviewed-by) · last on 2026-07-17
• Muchun Song <muchun.song@linux.dev>
  6 attestations (4 Acked-by, 2 Reviewed-by) · last on 2026-07-03
• <hidden>
  5 attestations (5 Reported-by) · last on 2026-07-17
• Uladzislau Rezki (Sony) <urezki@gmail.com>
  4 attestations (4 Reviewed-by) · last on 2026-07-15
• Will Deacon <will@kernel.org>
  3 attestations (3 Acked-by) · last on 2026-07-17

Recent patches

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

• HOTtoday [PATCH RFC 14/18] x86/mm/pat, mm: move cpa-test to mm
  2026-07-21 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• HOTtoday [PATCH RFC 13/18] mm/set_memory: read page table entries with pXdp_get()
  2026-07-21 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• HOTtoday [PATCH RFC 12/18] x86/pat/mm, mm/set_memory: abstract the CPA page table lock
  2026-07-21 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• HOTtoday [PATCH RFC 11/18] x86/mm/pat, mm: set_memory: pull change_page_attr() core to mm/
  2026-07-21 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM3d [RFC PATCH v4 1/3] mm: make persistent huge zero folio read-only
  2026-07-18 · Xueyuan Chen <hidden>
• WARM3d IN LINUX-NEXT: 39 (39M) [PATCH mm-hotfixes v5 5/5] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 27 (27M) [PATCH mm-hotfixes v5 4/5] mm/ptdump: always stabilise against page table freeing using init_mm
  2026-07-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 28 (28M) [PATCH mm-hotfixes v5 1/5] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH RFC v3 3/6] mm: rename get_user_page_vma_remote() to get_user_page_lookup_vma()
  2026-07-17 · Rik van Riel <riel@surriel.com>
• COOLING4d REVIEWED: 39 (39M) [PATCH mm-hotfixes v4 4/4] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-16 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COOLING4d REVIEWED: 27 (27M) [PATCH mm-hotfixes v4 3/4] mm/ptdump: always stabilise against page table freeing using init_mm
  2026-07-16 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COOLING4d REVIEWED: 28 (28M) [PATCH mm-hotfixes v4 1/4] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-16 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COOLING5d [PATCH v2 10/15] mm/gup: add fast-GUP specific lockless PTE helpers
  2026-07-16 · Yunhui Cui <hidden>
• COOLING5d [PATCH v2 05/15] mm: extend pte batch and leaf-size helpers
  2026-07-16 · Yunhui Cui <hidden>
• HOTtoday [PATCH 13/16] arm64: mm: introduce __per_cpu_local_off
  2026-07-15 · Yang Shi <hidden>
• HOTtoday [PATCH 11/16] arm64: mm: map local percpu first chunk
  2026-07-15 · Yang Shi <hidden>
• HOTtoday [PATCH 12/16] mm: percpu: set up first chunk and reserve chunk
  2026-07-15 · Yang Shi <hidden>
• HOTtoday [PATCH 14/16] mm: percpu: allocate and free local percpu vm area
  2026-07-15 · Yang Shi <hidden>
• HOTtoday [PATCH 10/16] mm: percpu: prepare to use dedicated percpu area
  2026-07-15 · Yang Shi <hidden>
• HOTtoday [PATCH 04/16] vmalloc: pass in pgd pointer for vmap{__vunmap}_range_noflush()
  2026-07-15 · Yang Shi <hidden>
• HOTtoday [PATCH 03/16] mm: pgalloc: introduce {pud|pmd}_populate_sync()
  2026-07-15 · Yang Shi <hidden>
• HOTtoday IN LINUX-NEXT: 6 (5M) [PATCH v7 7/7] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-07-15 · Wen Jiang <hidden>
• HOTtoday IN LINUX-NEXT: 3 (2M) [PATCH v7 6/7] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-07-15 · Wen Jiang <hidden>
• HOTtoday IN LINUX-NEXT: 2 (1M) [PATCH v7 5/7] mm/vmalloc: Extract vm_shift() to consolidate mapping shift selection
  2026-07-15 · Wen Jiang <hidden>
• HOTtoday IN LINUX-NEXT: 3 (2M) [PATCH v7 4/7] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-07-15 · Wen Jiang <hidden>
• HOTtoday IN LINUX-NEXT: 6 (5M) [PATCH v7 3/7] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-07-15 · Wen Jiang <hidden>
• COOLING5d REVIEWED: 24 (24M) [PATCH mm-hotfixes v3 4/4] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-14 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING5d 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>
• COOLING5d 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>
• COOLING6d Re: [PATCH v6 5/6] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-07-13 · Dev Jain <dev.jain@arm.com>

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.

• STALE99d 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
• STALE83d REVIEWED: 10 (10M) [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

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.

• STALE202d [PATCH 04/33] mm: vmstat: Prepare to protect against concurrent isolated cpuset change
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE202d [PATCH 16/33] sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE148d [PATCH 03/33] memcg: Prepare to protect against concurrent isolated cpuset change
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE148d [PATCH 16/33] sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE186d Re: [PATCH 1/1] Restore swap_space attr aviod krn panic
  2026-01-15 · Kairui Song <hidden>
• DORMANTno replies [PATCH v2 1/1] mm, swap: Restore swap_space attr aviod krn panic
  2026-01-16 · <hidden>
• STALE174d [PATCH 16/33] sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• DORMANTno replies [PATCH] mm/pkeys: Remove unused tsk parameter from arch_set_user_pkey_access()
  2026-02-19 · Seongsu Park <hidden>
• STALE126d [PATCH v5 01/15] mm/kasan: add conditional checks in functions to return directly if kasan is disabled
  2026-02-25 · Baoquan He <hidden>
• STALE126d [PATCH v5 02/15] mm/kasan: rename 'kasan_arg' to 'kasan_arg_disabled'
  2026-02-25 · Baoquan He <hidden>