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>

Active reviewers (last 30 days)

• 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
• Wang Lian <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-04-30
• Kunwu Chan <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-04-30

Recent patches

Most-recent 30 patches in this subsystem on loongarch (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 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>
• [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 v12 02/16] set_memory: add folio_{zap,restore}_direct_map helpers
  2026-04-10 · Kalyazin, Nikita <hidden>
• [PATCH v4 24/25] mm/vma: convert __mmap_region() to use vma_flags_t
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 23/25] mm/vma: convert vma_modify_flags[_uffd]() to use vma_flags_t
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 21/25] mm/vma: convert as much as we can in mm/vma.c to vma_flags_t
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 19/25] mm/vma: introduce vma_clear_flags[_mask]()
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 18/25] mm: update vma_supports_mlock() to use new VMA flags
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 17/25] mm: convert do_brk_flags() to use vma_flags_t
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 15/25] mm: introduce vma_flags_count() and vma[_flags]_test_single_mask()
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 13/25] mm/vma: introduce vma_test[_any[_mask]](), and make inlining consistent
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 10/25] mm/vma: introduce vma_flags_same[_mask/_pair]()
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 09/25] mm: unexport vm_brk_flags() and eliminate vm_flags parameter
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 07/25] mm/vma: add append_vma_flags() helper
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 05/25] mm/vma: use new VMA flags for sticky flags logic
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v4 01/25] mm/vma: add vma_flags_empty(), vma_flags_and(), vma_flags_diff_pair()
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH 2/2] mm: introduce CONFIG_NUMA_MIGRATION and simplify CONFIG_MIGRATION
  2026-03-19 · "David Hildenbrand (Arm)" <david@kernel.org>
• [PATCH 1/2] mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE
  2026-03-19 · "David Hildenbrand (Arm)" <david@kernel.org>
• [PATCH v3 23/23] mm/vma: convert __mmap_region() to use vma_flags_t
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 21/23] mm/vma: convert as much as we can in mm/vma.c to vma_flags_t
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 19/23] mm/vma: introduce vma_clear_flags[_mask]()
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 18/23] mm: update vma_supports_mlock() to use new VMA flags
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 17/23] mm: convert do_brk_flags() to use vma_flags_t
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 15/23] mm: introduce vma_flags_count() and vma[_flags]_test_single_mask()
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 13/23] mm/vma: introduce vma_test[_any[_mask]](), and make inlining consistent
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 10/23] mm/vma: introduce vma_flags_same[_mask/_pair]()
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH v3 09/23] mm: unexport vm_brk_flags() and eliminate vm_flags parameter
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <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.

• [PATCHv5 02/17] mm: Change the interface of prep_compound_tail()
  2026-01-28 · Kiryl Shutsemau <kas@kernel.org> · 2 Reviewed-by
• [PATCHv5 03/17] mm: Rename the 'compound_head' field in the 'struct page' to 'compound_info'
  2026-01-28 · Kiryl Shutsemau <kas@kernel.org> · 2 Reviewed-by
• [PATCHv5 07/17] mm: Rework compound_head() for power-of-2 sizeof(struct page)
  2026-01-28 · Kiryl Shutsemau <kas@kernel.org> · 2 Reviewed-by
• [PATCHv6 02/17] mm: Change the interface of prep_compound_tail()
  2026-02-02 · Kiryl Shutsemau <kas@kernel.org> · 2 Reviewed-by
• [PATCHv6 03/17] mm: Rename the 'compound_head' field in the 'struct page' to 'compound_info'
  2026-02-02 · Kiryl Shutsemau <kas@kernel.org> · 2 Reviewed-by
• [PATCHv6 07/17] mm: Rework compound_head() for power-of-2 sizeof(struct page)
  2026-02-02 · Kiryl Shutsemau <kas@kernel.org> · 2 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.

• [RFC PATCH 2/2] mm/swapin: Retry swapin by VMA lock if the lock was released for I/O
  2025-11-27 · Barry Song <hidden>
• Re: [RFC PATCH 0/2] mm: continue using per-VMA lock when retrying page faults after I/O
  2025-11-27 · Barry Song <hidden>
• [PATCH v2 1/3] randomize_kstack: Maintain kstack_offset per task
  2025-12-15 · Ryan Roberts <ryan.roberts@arm.com>
• [PATCH 22/28] arch, mm: consolidate initialization of nodes, zones and memory map
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• [PATCH 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• [PATCH v2 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• [PATCH 01/20] mm/vma: add vma_flags_empty(), vma_flags_and(), vma_flags_diff_pair()
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH 05/20] mm/vma: use new VMA flags for sticky flags logic
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH 07/20] mm/vma: add append_vma_flags() helper
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• [PATCH 09/20] mm: unexport vm_brk_flags() and eliminate vm_flags parameter
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>