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 00/39] mm: make VMA flag semantics explicit, eliminate VM_SPECIAL
  2026-09-08 20:21 · 26 replies in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM2d [PATCH v2 0/4] kho: rename "scratch" to "bootmem"
  2026-09-08 15:57 · 3 replies in 7d · Pratyush Yadav <pratyush@kernel.org>
• WARM1d [PATCH v2 00/12] mm: make userland page table freeing RCU-safe
  2026-09-08 12:36 · 3 replies in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>

Active reviewers (last 30 days)

• David Hildenbrand (Arm) <david@kernel.org>
  3 attestations (2 Acked-by, 1 Reviewed-by) · last on 2026-08-31
• Mike Rapoport (Microsoft) <rppt@kernel.org>
  3 attestations (2 Acked-by, 1 Reviewed-by) · last on 2026-08-31
• Muhammad Usama Anjum <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-09-02
• Alistair Popple <apopple@nvidia.com>
  1 attestation (1 Reviewed-by) · last on 2026-08-31
• Muchun Song <muchun.song@linux.dev>
  1 attestation (1 Reviewed-by) · last on 2026-08-31

Recent patches

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

• HOTtoday [PATCH 39/39] mm/vma: introduce and use vma[_flags]_can_gup()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 38/39] mm/huge_memory: remove vma_is_special_huge()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 35/39] mm: avoid use of VMA_SPECIAL_FLAGS in migrate_vma_setup()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 34/39] mm: eliminate VMA_SPECIAL_FLAGS check in lru_gen_look_around()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 33/39] mm: eliminate VMA_SPECIAL_FLAGS usage when hugetlb explicitly tested
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 32/39] mm/madvise: use predicates for madvise(..., MADV_DOFORK)
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 31/39] mm/uffd: use predicates for userfaultfd checks
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 30/39] mm/vma: introduce vma[_flags]_is_persistent()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 29/39] mm/madvise: update is_valid_guard_vma() to use vma_can_merge()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 28/39] mm: drop some redundant checks around hugetlb VMAs
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 27/39] mm: rename is_vm_hugetlb_page() to vma_is_hugetlb()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 26/39] mm: remove hugetlb_inline.h
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 25/39] mm: remove VMA_IO_BIT check in vma[_flags]_is_kernel_owned()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 24/39] mm/vma: enforce that only kernel-owned mappings may set VMA_IO_BIT
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 23/39] mm/mlock: eliminate weird VMA_IO_BIT abuse and simplify
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 22/39] mm/mlock: clear VMA_LOCKED_MASK over mmap callback
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 20/39] mm/gup: error out early on !VMA_MAYREAD_BIT VMAs
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 16/39] mm/vma: add and use vma_[flags]_is_fixed_mapping
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 15/39] mm/vma: only allow mmap to clear VMA_MAYWRITE_BIT if kernel-owned
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 07/39] mm: add mmap action for discontiguous kernel page mapping
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 06/39] mm/vma: tidy up map kernel pages enum values
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 05/39] mm: make map_kernel_pages_[prepare,complete] internal and unexported
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 04/39] mm/vma: ensure mmap_prepare doesn't set actions on a mergeable vma
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 03/39] mm: consistently validate VMA state after mmap[_prepare] hooks
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 02/39] mm/vma: introduce and use vma_[flags_]can_merge()
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 01/39] mm/vma: predicate setting mmap_prepare VMA fields on new vma alloc
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM2d [PATCH v2 3/4] kho: rename KHO scratch to KHO bootmem
  2026-09-08 · Pratyush Yadav <pratyush@kernel.org>
• WARM2d [PATCH v2 2/4] memblock: rename KHO_SCRATCH to KHO_NOPRSRV
  2026-09-08 · Pratyush Yadav <pratyush@kernel.org>
• WARM2d [PATCH v2 1/4] memblock: get rid of CONFIG_MEMBLOCK_KHO_SCRATCH
  2026-09-08 · Pratyush Yadav <pratyush@kernel.org>
• WARM1d [PATCH v2 12/12] mm: change the contract for free_pgtables(), update docs
  2026-09-08 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>

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.

• COLD42d REVIEWED: 11 (11M) [PATCH v8 2/9] mm: factor zone-device page init helpers out of __init_zone_device_page
  2026-07-27 · Li Zhe <hidden> · 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.

• STALE112d [PATCH v2 08/25] mm/page_alloc: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE112d [PATCH v2 09/25] mm/show_mem: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE112d [PATCH v2 10/25] mm/swapfile: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE112d [PATCH v2 16/25] mm/mm_init: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE110d [PATCH 1/5] mm: add basic madvise helpers and branch for THP setup
  2026-05-01 · Luka Bai <hidden>
• STALE110d [PATCH 2/5] mm: add pmd level THP COW parameter in sysfs
  2026-05-01 · Luka Bai <hidden>
• STALE113d [PATCH 3/4] mm: extend the template fast path to zone-device compound tails
  2026-05-15 · Li Zhe <hidden>
• STALE105d [PATCH v3 1/8] mm: fix stale ZONE_DEVICE refcount comment
  2026-05-27 · Li Zhe <hidden>
• STALE105d [PATCH v3 4/8] mm: add a template-based fast path for zone-device page init
  2026-05-27 · Li Zhe <hidden>
• STALE105d [PATCH v3 8/8] mm: use memcpy_streaming() in zone-device template copies
  2026-05-27 · Li Zhe <hidden>