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 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)

• [PATCH v2 0/5] mm: reduce mmap_lock contention and improve page fault performance
  2026-05-22 02:33 · 1 reply in 7d · "Barry Song (Xiaomi)" <baohua@kernel.org>
• [PATCH v8 14/37] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-20 22:21 · 0 replies in 7d · "Michael S. Tsirkin" <mst@redhat.com>

Active reviewers (last 30 days)

• David Hildenbrand <david@kernel.org>
  2 attestations (1 Acked-by, 1 Suggested-by) · last on 2026-05-20
• Magnus Lindholm <linmag7@gmail.com>
  1 attestation (1 Acked-by) · last on 2026-05-20
• Greg Ungerer <gerg@linux-m68k.org>
  1 attestation (1 Acked-by) · last on 2026-05-20
• Gregory Price <gourry@gourry.net>
  1 attestation (1 Reviewed-by) · last on 2026-05-20
• Oscar Salvador <osalvador@suse.de>
  1 attestation (1 Acked-by) · last on 2026-05-12
• Michal Hocko <mhocko@suse.com>
  1 attestation (1 Acked-by) · last on 2026-05-12
• Donet Tom <hidden>
  1 attestation (1 Tested-by) · last on 2026-05-12
• Lorenzo Stoakes <ljs@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-05-12
• Wang Lian <hidden>
  1 attestation (1 Tested-by) · last on 2026-04-30
• Kunwu Chan <hidden>
  1 attestation (1 Tested-by) · last on 2026-04-30

Recent patches

Most-recent 30 patches in this subsystem on linux-s390 (capped at 30), ordered by date desc.

• Re: [PATCH v2 0/5] mm: reduce mmap_lock contention and improve page fault performance
  2026-05-22 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• [PATCH v8 14/37] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-20 · "Michael S. Tsirkin" <mst@redhat.com>
• [PATCH v2] drivers/base/memory: make memory block get/put explicit
  2026-05-12 · Muchun Song <hidden>
• Re: [PATCH] drivers/base/memory: make memory block get/put explicit
  2026-05-12 · Muchun Song <muchun.song@linux.dev>
• [PATCH 8/8] powerpc/mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE
  2026-05-11 · "David Hildenbrand (Arm)" <david@kernel.org>
• [PATCH] drivers/base/memory: make memory block get/put explicit
  2026-05-11 · Muchun Song <hidden>
• [PATCH v2 4/5] mm: Don't retry page fault if folio is uptodate during swap-in
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• [PATCH v2 3/5] mm: Move folio_lock_or_retry() and drop __folio_lock_or_retry()
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• [PATCH v2 2/5] mm/swapin: Retry swapin by VMA lock if the lock was released for I/O
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• Re: [PATCH v1 2/3] mm: process_mrelease: skip LRU movement for exclusive file folios
  2026-04-29 · Minchan Kim <minchan@kernel.org>
• [RFC PATCH v1 5/9] uaccess: Switch to copy_{to/from}_user_partial() when relevant
  2026-04-27 · "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
• [PATCH v1 2/3] mm: process_mrelease: skip LRU movement for exclusive file folios
  2026-04-21 · Minchan Kim <minchan@kernel.org>
• Re: [PATCH v2 2/6] mm/pgtable: Fix bogus comment to clear_not_present_full_ptes()
  2026-04-16 · "David Hildenbrand (Arm)" <david@kernel.org>
• [PATCH v2 2/6] mm/pgtable: Fix bogus comment to clear_not_present_full_ptes()
  2026-04-15 · Alexander Gordeev <agordeev@linux.ibm.com>
• [PATCH v2 1/6] mm: Make lazy MMU mode context-aware
  2026-04-15 · Alexander Gordeev <agordeev@linux.ibm.com>
• [PATCH v12 02/16] set_memory: add folio_{zap,restore}_direct_map helpers
  2026-04-10 · Kalyazin, Nikita <hidden>
• [PATCH v6 5/6] mm: use vma_start_write_killable() in process_vma_walk_lock()
  2026-03-27 · Suren Baghdasaryan <surenb@google.com>
• [PATCH v6 2/6] mm: use vma_start_write_killable() in mm syscalls
  2026-03-27 · Suren Baghdasaryan <surenb@google.com>
• [v3 19/24] mm: thp: add THP_SPLIT_PMD_FAILED counter
  2026-03-27 · Usama Arif <hidden>
• [v3 18/24] mm: thp: remove pgtable_trans_huge_{deposit/withdraw} when not needed
  2026-03-27 · Usama Arif <hidden>
• [v3 09/24] mm: handle walk_page_range() failure from THP split
  2026-03-27 · Usama Arif <hidden>
• [v3 06/24] mm: thp: handle split failure in wp_huge_pmd()
  2026-03-27 · Usama Arif <hidden>
• [v3 05/24] mm: thp: handle split failure in zap_pmd_range()
  2026-03-27 · Usama Arif <hidden>
• [PATCH v5 5/6] mm: use vma_start_write_killable() in process_vma_walk_lock()
  2026-03-26 · Suren Baghdasaryan <surenb@google.com>
• [PATCH v5 2/6] mm: use vma_start_write_killable() in mm syscalls
  2026-03-26 · Suren Baghdasaryan <surenb@google.com>
• [RFC PATCH 1/2] mm: make lazy MMU mode context-aware
  2026-03-25 · Alexander Gordeev <agordeev@linux.ibm.com>
• [PATCH v4 4/4] mm: use vma_start_write_killable() in process_vma_walk_lock()
  2026-03-22 · Suren Baghdasaryan <surenb@google.com>
• [PATCH v4 2/4] mm: replace vma_start_write() with vma_start_write_killable()
  2026-03-22 · Suren Baghdasaryan <surenb@google.com>
• [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>
• [PATCH v2 4/6] mm: change to return bool for pmdp_clear_flush_young()
  2026-03-21 · Baolin Wang <baolin.wang@linux.alibaba.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.

• [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.

• [PATCH 03/16] mm: avoid unnecessary uses of is_swap_pte()
  2025-11-03 · Lorenzo Stoakes <hidden>
• [PATCH 04/16] mm: eliminate uses of is_swap_pte() when leafent_from_pte() suffices
  2025-11-03 · Lorenzo Stoakes <hidden>
• [PATCH 07/16] mm: avoid unnecessary use of is_swap_pmd()
  2025-11-03 · Lorenzo Stoakes <hidden>
• [PATCH 11/16] mm: introduce pmd_is_huge() and use where appropriate
  2025-11-03 · Lorenzo Stoakes <hidden>
• [PATCH 15/16] mm: eliminate further swapops predicates
  2025-11-03 · Lorenzo Stoakes <hidden>
• [PATCH 16/16] mm: replace remaining pte_to_swp_entry() with leafent_from_pte()
  2025-11-03 · Lorenzo Stoakes <hidden>
• Re: [PATCH 02/16] mm: introduce leaf entry type and use to simplify leaf entry logic
  2025-11-03 · Lorenzo Stoakes <hidden>
• Re: [PATCH 10/16] mm: replace pmd_to_swp_entry() with leafent_from_pmd()
  2025-11-03 · Lorenzo Stoakes <hidden>
• [PATCH v2 03/16] mm: avoid unnecessary uses of is_swap_pte()
  2025-11-08 · Lorenzo Stoakes <hidden>
• [PATCH v2 11/16] mm: introduce pmd_is_huge() and use where appropriate
  2025-11-08 · Lorenzo Stoakes <hidden>