memory management - core · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>
• M David Hildenbrand <david@kernel.org>
• R Lorenzo Stoakes <ljs@kernel.org>
• R Liam R. Howlett <liam@infradead.org>
• R Vlastimil Babka <vbabka@kernel.org>
• R Mike Rapoport <rppt@kernel.org>
• R Suren Baghdasaryan <surenb@google.com>
• R Michal Hocko <mhocko@suse.com>

Paths

• F Documentation/admin-guide/sysctl/vm.rst
• F include/linux/folio_batch.h
• F include/linux/gfp.h
• F include/linux/gfp_types.h
• F include/linux/highmem.h
• F include/linux/leafops.h
• F include/linux/memory.h
• F include/linux/mm.h
• F include/linux/mm_*.h
• F include/linux/mmzone.h
• F include/linux/mmdebug.h
• F include/linux/mmu_notifier.h
• F include/linux/pagewalk.h
• F include/linux/pgalloc.h
• F include/linux/pgtable.h
• F include/linux/ptdump.h
• F include/linux/vmpressure.h
• F include/linux/vmstat.h
• F fs/proc/meminfo.c
• F kernel/fork.c
• F mm/Kconfig
• F mm/debug.c
• F mm/folio-compat.c
• F mm/highmem.c
• F mm/init-mm.c
• F mm/internal.h
• F mm/maccess.c
• F mm/memory.c
• F mm/mmu_notifier.c
• F mm/mmzone.c
• F mm/pagewalk.c
• F mm/pgtable-generic.c
• F mm/ptdump.c
• F mm/sparse-vmemmap.c
• F mm/sparse.c
• F mm/util.c
• F mm/vmpressure.c
• F mm/vmstat.c

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH 0/5] mm: add basic PTE const type-safety
  2026-07-24 10:20 · 2 replies in 7d · Pedro Falcato <pfalcato@suse.de>

Active reviewers (last 30 days)

• Zi Yan <ziy@nvidia.com>
  7 attestations (1 Acked-by, 6 Reviewed-by) · last on 2026-07-11
• Lance Yang <lance.yang@linux.dev>
  6 attestations (6 Reviewed-by) · last on 2026-07-11
• Matthew Wilcox (Oracle) <willy@infradead.org>
  2 attestations (2 Suggested-by) · last on 2026-07-14
• <hidden>
  1 attestation (1 Reported-by) · last on 2026-07-06

Recent patches

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

• HOTtoday [PATCH 1/5] mm: constify generic pte_get*()
  2026-07-24 · Pedro Falcato <pfalcato@suse.de>
• HOTtoday [PATCH 5/5] mm: constify the pte_offset_map_ro_nolock() return value
  2026-07-24 · Pedro Falcato <pfalcato@suse.de>
• WARM1d [PATCH 17/22] mm: pagewalk: drop redundant address check for kernel mm walks
  2026-07-14 · Kevin Brodsky <hidden>
• WARM1d [PATCH 15/22] mm: only initialise pt_share_count for user pgtables
  2026-07-14 · Kevin Brodsky <hidden>
• WARM1d [PATCH 14/22] mm: set page table page type when allocated
  2026-07-14 · Kevin Brodsky <hidden>
• WARM1d [PATCH 13/22] mm: account page table pages when allocated
  2026-07-14 · Kevin Brodsky <hidden>
• WARM1d [PATCH 04/22] mm: use mm_is_kernel() in generic page table code
  2026-07-14 · Kevin Brodsky <hidden>
• WARM1d [PATCH 03/22] mm: introduce MMF_KERNEL flag and set it for init_mm
  2026-07-14 · Kevin Brodsky <hidden>
• WARM1d [PATCH 02/22] mm: move mm_flags helpers to mm_types.h
  2026-07-14 · Kevin Brodsky <hidden>
• WARM3d IN LINUX-NEXT: 6 (6M) [PATCH v2 09/13] mm/vma: update create_init_stack_vma() to use vma_flags_t
  2026-07-11 · Lorenzo Stoakes <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 3 (3M) [PATCH v2 08/13] mm: introduce vma_get_page_prot() and use it
  2026-07-11 · Lorenzo Stoakes <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 6 (6M) [PATCH v2 07/13] mm/vma: rename vma_get_page_prot to vma_flags_to_page_prot
  2026-07-11 · Lorenzo Stoakes <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 6 (6M) [PATCH v2 05/13] mm: prefer mm->def_vma_flags in mm logic
  2026-07-11 · Lorenzo Stoakes <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 6 (6M) [PATCH v2 03/13] mm: convert __get_unmapped_area() to use vma_flags_t
  2026-07-11 · Lorenzo Stoakes <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 6 (6M) [PATCH v2 02/13] mm/vma: update do_mmap() to use vma_flags_t
  2026-07-11 · Lorenzo Stoakes <ljs@kernel.org>
• WARM3d IN LINUX-NEXT: 6 (6M) [PATCH v2 01/13] mm: introduce vma_flags_can_grow() and vma_can_grow()
  2026-07-11 · Lorenzo Stoakes <ljs@kernel.org>
• COLD15d IN LINUX-NEXT [PATCH v8] mm: pgtable: free kernel page tables via RCU to fix ptdump UAF
  2026-07-06 · David Carlier <hidden>
• COOLING14d [PATCH 09/13] mm/vma: update create_init_stack_vma() to use vma_flags_t
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING14d [PATCH 08/13] mm: introduce vma_get_page_prot() and use it
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING14d [PATCH 05/13] mm: prefer mm->def_vma_flags in mm logic
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING14d [PATCH 07/13] mm/vma: rename vma_get_page_prot to vma_flags_to_page_prot
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING14d [PATCH 03/13] mm: convert __get_unmapped_area() to use vma_flags_t
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING14d [PATCH 02/13] mm/vma: update do_mmap() to use vma_flags_t
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING14d [PATCH 01/13] mm: introduce vma_flags_can_grow() and vma_can_grow()
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COLD23d [PATCH v15 6/9] arm64: support copy_mc_[user]_highpage()
  2026-06-18 · Ruidong Tian <hidden>
• COLD23d REVIEWED: 6 (6M) [PATCH v15 5/9] mm/hwpoison: return -EFAULT when copy fail in copy_mc_[user]_highpage()
  2026-06-18 · Ruidong Tian <hidden>
• COLD19d IN LINUX-NEXT: 11 (11M) [PATCH v4 19/19] mm/mm_init: Fold __init_page_from_nid() into __init_deferred_page()
  2026-06-12 · Muchun Song <hidden>
• COLD19d IN LINUX-NEXT [PATCH v4 18/19] mm/hugetlb: Remove unused bootmem cma field
  2026-06-12 · Muchun Song <hidden>
• COLD19d IN LINUX-NEXT: 11 (11M) [PATCH v4 17/19] mm/sparse-vmemmap: Remove sparse_vmemmap_init_nid_late()
  2026-06-12 · Muchun Song <hidden>
• COLD19d IN LINUX-NEXT: 13 (13M) [PATCH v4 13/19] mm/hugetlb: Refactor early boot gigantic hugepage allocation
  2026-06-12 · Muchun Song <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.

• STALE86d 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.

• STALE204d [PATCH 22/28] arch, mm: consolidate initialization of nodes, zones and memory map
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE204d [PATCH 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE199d [PATCH v1 5/8] mm: Add helpers to create device private entries from struct pages
  2025-12-31 · Jordan Niethe <hidden>
• STALE199d [PATCH v1 6/8] mm/util: Add flag to track device private pages in page snapshots
  2025-12-31 · Jordan Niethe <hidden>
• STALE155d [PATCH v2 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE183d [PATCH v2 06/11] mm: Add helpers to create migration entries from struct pages
  2026-01-07 · Jordan Niethe <hidden>
• STALE183d [PATCH v2 09/11] mm/util: Add flag to track device private pages in page snapshots
  2026-01-07 · Jordan Niethe <hidden>
• STALE178d [PATCH v3 06/13] mm: Add helpers to create migration entries from struct pages
  2026-01-23 · Jordan Niethe <hidden>
• STALE178d [PATCH v3 08/13] mm: Add softleaf support for device private migration entries
  2026-01-23 · Jordan Niethe <hidden>
• STALE178d [PATCH v3 11/13] mm/util: Add flag to track device private pages in page snapshots
  2026-01-23 · Jordan Niethe <hidden>