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)

• WARM3d IN LINUX-NEXT [PATCH v3 00/40] mm: make VMA flag semantics explicit, eliminate VM_SPECIAL
  2026-09-17 16:43 · 27 replies in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d [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>
• COOLING4d IN LINUX-NEXT [PATCH v4 00/11] mm: Switch device DAX to section-based vmemmap optimization
  2026-09-16 08:36 · 10 replies in 7d · Muchun Song <hidden>
• COOLING4d [PATCH 0/4] file: simplify and harden cleanup handling
  2026-09-17 09:10 · 1 reply in 7d · Christian Brauner <brauner@kernel.org>
• HOTtoday [PATCH v3 00/12] mm: make userland page table freeing RCU-safe
  2026-09-16 17:00 · 1 reply in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COOLING5d [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)

• Qi Zheng <qi.zheng@linux.dev>
  24 attestations (24 Acked-by) · last on 2026-09-16
• Mike Rapoport (Microsoft) <rppt@kernel.org>
  7 attestations (7 Acked-by) · last on 2026-09-16
• 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
• Marc Zyngier <maz@kernel.org>
  4 attestations (4 Acked-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
• David Hildenbrand (Arm) <david@kernel.org>
  4 attestations (4 Acked-by) · last on 2026-09-16
• Kiryl Shutsemau (Meta) <kas@kernel.org>
  3 attestations (3 Acked-by) · last on 2026-09-11
• Claudio Imbrenda <imbrenda@linux.ibm.com>
  2 attestations (2 Acked-by) · last on 2026-09-17
• Anup Patel <anup@brainfault.org>
  2 attestations (2 Acked-by) · last on 2026-09-17

Recent patches

Most-recent 30 patches in this subsystem on linuxppc-dev (capped at 30), ordered by date desc.

• WARM3d IN LINUX-NEXT [PATCH v3 40/40] mm/vma: introduce and use vma[_flags]_can_gup()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 39/40] mm/huge_memory: remove vma_is_special_huge()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 36/40] mm: avoid use of VMA_SPECIAL_FLAGS in migrate_vma_setup()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 35/40] mm: eliminate VMA_SPECIAL_FLAGS check in lru_gen_look_around()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 34/40] mm: eliminate VMA_SPECIAL_FLAGS usage when hugetlb explicitly tested
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 33/40] mm/madvise: use predicates for madvise(..., MADV_DOFORK)
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 32/40] mm/uffd: use predicates for userfaultfd checks
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 31/40] mm/vma: introduce vma[_flags]_is_persistent()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 30/40] mm/madvise: update is_valid_guard_vma() to use vma_can_merge()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 5 (5M) [PATCH v3 29/40] mm: drop some redundant checks around hugetlb VMAs
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 11 (11M) [PATCH v3 28/40] mm: rename is_vm_hugetlb_page() to vma_is_hugetlb()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 27/40] mm: remove hugetlb_inline.h
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 26/40] mm: remove VMA_IO_BIT check in vma[_flags]_is_kernel_owned()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 25/40] mm/vma: enforce that only kernel-owned mappings may set VMA_IO_BIT
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 24/40] mm/mlock: eliminate weird VMA_IO_BIT abuse and simplify
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 23/40] mm/mlock: clear VMA_LOCKED_MASK over mmap callback
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 21/40] mm/gup: error out early on !VMA_MAYREAD_BIT VMAs
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 17/40] mm/vma: add and use vma_[flags]_is_fixed_mapping
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 16/40] mm/vma: only allow mmap to clear VMA_MAYWRITE_BIT if kernel-owned
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 08/40] mm: add mmap action for discontiguous kernel page mapping
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 07/40] mm/vma: tidy up map kernel pages enum values
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 06/40] mm: make map_kernel_pages_[prepare,complete] internal and unexported
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 05/40] mm/vma: ensure mmap_prepare doesn't set actions on a mergeable vma
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 04/40] mm: consistently validate VMA state after mmap[_prepare] hooks
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 03/40] mm/vma: introduce and use vma_[flags_]can_merge()
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 02/40] mm/vma: predicate setting mmap_prepare VMA fields on new vma alloc
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v3 01/40] mm/vma: fix mmap_prepare file handling, remove file_doesnt_need_get
  2026-09-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COOLING4d [PATCH 4/4] file: make struct fd_prepare const and kill its err field
  2026-09-17 · Christian Brauner <brauner@kernel.org>
• WARM3d REVIEWED: 6 (5M) [PATCH v8 10/10] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-09-17 · Wen Jiang <hidden>
• WARM3d REVIEWED: 2 (1M) [PATCH v8 09/10] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-09-17 · Wen Jiang <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.

• STALE144d 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

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.

• STALE188d [PATCH v5 01/15] mm/kasan: add conditional checks in functions to return directly if kasan is disabled
  2026-02-25 · Baoquan He <hidden>
• STALE188d [PATCH v5 02/15] mm/kasan: rename 'kasan_arg' to 'kasan_arg_disabled'
  2026-02-25 · Baoquan He <hidden>
• STALE188d [PATCH v5 03/15] mm/kasan: mm/kasan: move kasan= code to common place
  2026-02-25 · Baoquan He <hidden>
• STALE188d [PATCH v5 04/15] mm/kasan: make kasan=on|off take effect for all three modes
  2026-02-25 · Baoquan He <hidden>
• STALE188d [PATCH v5 05/15] mm/kasan/sw_tags: don't initialize kasan if it's disabled
  2026-02-25 · Baoquan He <hidden>
• STALE188d [PATCH v5 15/15] mm/kasan: clean up unneeded ARCH_DEFER_KASAN and kasan_arch_is_ready
  2026-02-25 · Baoquan He <hidden>
• STALE201d [RFC v1 03/10] mm/debug_vm_pgtable.c: Add test to zap THP migration entry
  2026-02-25 · "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
• STALE195d [RFC v2 01/21] mm: thp: make split_huge_pmd functions return int for error propagation
  2026-02-26 · Usama Arif <usama.arif@linux.dev>
• STALE195d [RFC v2 02/21] mm: thp: propagate split failure from vma_adjust_trans_huge()
  2026-02-26 · Usama Arif <usama.arif@linux.dev>
• STALE195d [RFC v2 03/21] mm: thp: handle split failure in copy_huge_pmd()
  2026-02-26 · Usama Arif <usama.arif@linux.dev>