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 v8 00/15] userfaultfd: working set tracking for VM guest memory
  2026-07-03 13:36 · 9 replies in 7d · Kiryl Shutsemau <hidden>
• HOTtoday [PATCH v5 0/3] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings
  2026-07-02 17:32 · 2 replies in 7d · Stanislav Kinsburskii <hidden>
• HOTtoday [PATCH] mm/mseal: fix mseal documentation for 32-bit kernels
  2026-07-03 02:26 · 0 replies in 7d · Leon Hwang <hidden>
• WARM3d [PATCH v7 00/15] userfaultfd: working set tracking for VM guest memory
  2026-06-29 12:08 · 9 replies in 7d · Kiryl Shutsemau <hidden>
• WARM2d IN LINUX-NEXT [PATCH v10 0/6] mm/memory-failure: add panic option for unrecoverable pages
  2026-06-30 12:46 · 4 replies in 7d · Breno Leitao <leitao@debian.org>
• WARM1d [PATCH v5 0/6] mm/zswap: Implement per-cgroup proactive writeback
  2026-06-30 10:51 · 6 replies in 7d · Hao Jia <hidden>
• WARM2d [PATCH v6 0/3] mm: clean up folio LRU and swap declarations
  2026-06-30 16:28 · 3 replies in 7d · Jianyue Wu <hidden>
• WARM2d [PATCH v4 0/3] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings
  2026-06-30 15:21 · 2 replies in 7d · Stanislav Kinsburskii <hidden>
• WARM3d [PATCH v5 0/3] mm: clean up folio LRU and swap declarations
  2026-06-30 01:08 · 3 replies in 7d · Jianyue Wu <hidden>
• WARM1d [RFC V2 0/3] lib/vsprintf: Add support for pgtable entries
  2026-06-30 13:37 · 1 reply in 7d · Anshuman Khandual <hidden>

Active reviewers (last 30 days)

• David Hildenbrand <david@kernel.org>
  35 attestations (22 Acked-by, 13 Suggested-by) · last on 2026-06-30
• Mike Rapoport (Microsoft) <rppt@kernel.org>
  18 attestations (8 Acked-by, 10 Reviewed-by) · last on 2026-07-03
• Lorenzo Stoakes <ljs@kernel.org>
  14 attestations (14 Reviewed-by) · last on 2026-07-03
• Lance Yang <lance.yang@linux.dev>
  11 attestations (8 Reviewed-by, 3 Suggested-by) · last on 2026-06-30
• Miaohe Lin <linmiaohe@huawei.com>
  8 attestations (8 Acked-by) · last on 2026-06-30
• Yosry Ahmed <yosry@kernel.org>
  7 attestations (1 Reported-by, 6 Suggested-by) · last on 2026-06-29
• SeongJae Park <sj@kernel.org>
  6 attestations (2 Acked-by, 4 Reviewed-by) · last on 2026-07-03
• Baoquan He <hidden>
  6 attestations (6 Suggested-by) · last on 2026-06-30
• Usama Arif <hidden>
  6 attestations (6 Acked-by) · last on 2026-06-05
• Baolin Wang <baolin.wang@linux.alibaba.com>
  5 attestations (5 Reviewed-by) · last on 2026-06-05

Recent patches

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

• HOTtoday REVIEWED: 11 (11M) [PATCH v8 13/15] userfaultfd: add UFFDIO_SET_MODE for runtime sync/async toggle
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 11 (11M) [PATCH v8 12/15] userfaultfd: add UFFD_FEATURE_RWP_ASYNC for async fault resolution
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 11 (11M) [PATCH v8 10/15] mm/userfaultfd: add RWP fault delivery and expose UFFDIO_REGISTER_MODE_RWP
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 11 (11M) [PATCH v8 09/15] userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 21 (21M) [PATCH v8 08/15] mm: handle VM_UFFD_RWP in khugepaged, rmap, and GUP
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 11 (11M) [PATCH v8 07/15] mm: preserve RWP marker across PTE rewrites
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 12 (12M) [PATCH v8 06/15] mm: add MM_CP_UFFD_RWP change_protection() flag
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 12 (12M) [PATCH v8 03/15] mm: rename uffd-wp PTE accessors to uffd
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday REVIEWED: 12 (12M) [PATCH v8 01/15] mm: decouple protnone helpers from CONFIG_NUMA_BALANCING
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday [PATCH] mm/mseal: fix mseal documentation for 32-bit kernels
  2026-07-03 · Leon Hwang <hidden>
• HOTtoday [PATCH v5 2/3] mm/hmm: add hmm_range_fault_unlockable() for mmap lock-drop support
  2026-07-02 · Stanislav Kinsburskii <hidden>
• HOTtoday [PATCH v5 1/3] mm/hmm: move page fault handling out of walk callbacks
  2026-07-02 · Stanislav Kinsburskii <hidden>
• WARM2d REVIEWED: 7 (7M) [PATCH v6 3/3] mm: move reclaim-internal declarations out of swap.h
  2026-06-30 · Jianyue Wu <hidden>
• WARM2d REVIEWED: 32 (32M) [PATCH v6 2/3] mm: rename swap.c to folio.c
  2026-06-30 · Jianyue Wu <hidden>
• WARM2d REVIEWED: 15 (15M) [PATCH v6 1/3] mm/swap: colocate page-cluster sysctl with swap readahead
  2026-06-30 · Jianyue Wu <hidden>
• WARM2d [PATCH v4 2/3] mm/hmm: add hmm_range_fault_unlockable() for mmap lock-drop support
  2026-06-30 · Stanislav Kinsburskii <hidden>
• WARM2d [PATCH v4 1/3] mm/hmm: move page fault handling out of walk callbacks
  2026-06-30 · Stanislav Kinsburskii <hidden>
• WARM1d Re: [RFC V2 3/3] mm: Replace pgtable entry prints with new format
  2026-06-30 · "David Hildenbrand (Arm)" <david@kernel.org>
• WARM2d IN LINUX-NEXT: 1 (1M) [PATCH v10 4/6] mm/memory-failure: add panic option for unrecoverable pages
  2026-06-30 · Breno Leitao <leitao@debian.org>
• WARM2d IN LINUX-NEXT: 16 (16M) [PATCH v10 3/6] mm/memory-failure: report MF_MSG_KERNEL for unrecoverable kernel pages
  2026-06-30 · Breno Leitao <leitao@debian.org>
• WARM2d IN LINUX-NEXT [PATCH v10 2/6] mm/memory-failure: surface unhandlable kernel pages as -ENOTRECOVERABLE
  2026-06-30 · Breno Leitao <leitao@debian.org>
• WARM2d IN LINUX-NEXT: 18 (18M) [PATCH v10 1/6] mm/memory-failure: drop dead error_states[] entry for reserved pages
  2026-06-30 · Breno Leitao <leitao@debian.org>
• WARM1d Re: [PATCH v5 1/6] mm/zswap: Fix global shrinker when memory cgroup is disabled
  2026-06-30 · Hao Jia <hidden>
• WARM3d REVIEWED: 7 (7M) [PATCH v5 3/3] mm: move reclaim-internal declarations out of swap.h
  2026-06-30 · Jianyue Wu <hidden>
• WARM3d REVIEWED: 32 (32M) [PATCH v5 2/3] mm: rename swap.c to folio_lru.c
  2026-06-30 · Jianyue Wu <hidden>
• WARM3d REVIEWED: 15 (15M) [PATCH v5 1/3] mm/swap: colocate page-cluster sysctl with swap readahead
  2026-06-30 · Jianyue Wu <hidden>
• WARM3d REVIEWED: 11 (11M) [PATCH v7 13/15] userfaultfd: add UFFDIO_SET_MODE for runtime sync/async toggle
  2026-06-29 · Kiryl Shutsemau <hidden>
• WARM3d REVIEWED: 11 (11M) [PATCH v7 12/15] userfaultfd: add UFFD_FEATURE_RWP_ASYNC for async fault resolution
  2026-06-29 · Kiryl Shutsemau <hidden>
• WARM3d REVIEWED: 11 (11M) [PATCH v7 10/15] mm/userfaultfd: add RWP fault delivery and expose UFFDIO_REGISTER_MODE_RWP
  2026-06-29 · Kiryl Shutsemau <hidden>
• WARM3d REVIEWED: 11 (11M) [PATCH v7 09/15] userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing
  2026-06-29 · Kiryl Shutsemau <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.

• STALE184d REVIEWED: 1 (0M) [PATCH next v2 1/2] mm/huge_memory: Implementation of THP COW for executable file mmap
  2025-12-26 · Zhang Qilong <hidden> · 1 Tested-by
• STALE156d REVIEWED: 1 (0M) [PATCH v9 02/13] mm/gup: drop secretmem optimization from gup_fast_folio_allowed
  2026-01-14 · Kalyazin, Nikita <hidden> · 1 Acked-by
• STALE164d REVIEWED: 3 (3M) [PATCHv3 03/15] mm: Change the interface of prep_compound_tail()
  2026-01-15 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE164d REVIEWED: 3 (3M) [PATCHv3 04/15] mm: Rename the 'compound_head' field in the 'struct page' to 'compound_info'
  2026-01-15 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE164d REVIEWED: 3 (3M) [PATCHv3 06/15] mm: Rework compound_head() for power-of-2 sizeof(struct page)
  2026-01-15 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE164d REVIEWED: 3 (3M) [PATCHv3 12/15] hugetlb: Remove VMEMMAP_SYNCHRONIZE_RCU
  2026-01-15 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE164d REVIEWED: 3 (3M) [PATCHv3 13/15] mm/hugetlb: Remove hugetlb_optimize_vmemmap_key static key
  2026-01-15 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE162d REVIEWED: 9 (9M) [PATCH v2 03/31] tmpfs: add EXPORT_OP_STABLE_HANDLES flag to export operations
  2026-01-19 · Jeff Layton <jlayton@kernel.org> · 1 Reviewed-by
• STALE155d REVIEWED: 3 (3M) [PATCHv4 02/14] mm: Change the interface of prep_compound_tail()
  2026-01-21 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE155d REVIEWED: 3 (3M) [PATCHv4 03/14] mm: Rename the 'compound_head' field in the 'struct page' to 'compound_info'
  2026-01-21 · Kiryl Shutsemau <kas@kernel.org> · 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.

• STALE203d [PATCH 02/11] mm: Rename the 'compound_head' field in the 'struct page' to 'compound_info'
  2025-12-05 · Kiryl Shutsemau <kas@kernel.org>
• STALE203d [PATCH 08/11] hugetlb: Remove VMEMMAP_SYNCHRONIZE_RCU
  2025-12-05 · Kiryl Shutsemau <kas@kernel.org>
• STALE203d [PATCH 09/11] mm/hugetlb: Remove hugetlb_optimize_vmemmap_key static key
  2025-12-05 · Kiryl Shutsemau <kas@kernel.org>
• STALE204d [RFC LPC2025 PATCH 3/4] mm/vmscan/page_alloc: Deprecate min_{slab, unmapped}_ratio
  2025-12-05 · Joshua Hahn <joshua.hahnjy@gmail.com>
• STALE204d [RFC LPC2025 PATCH 4/4] mm/vmscan: Deprecate zone_reclaim_mode
  2025-12-05 · Joshua Hahn <joshua.hahnjy@gmail.com>
• STALE191d [RFC PATCH 02/10] kho: disable scratch-only earlier in boot
  2025-12-06 · Pratyush Yadav <pratyush@kernel.org>
• STALE191d [RFC PATCH 05/10] mm: hugetlb: export some functions to hugetlb-internal header
  2025-12-06 · Pratyush Yadav <pratyush@kernel.org>
• STALE191d [RFC PATCH 07/10] mm: hugetlb: don't allocate pages already in live update
  2025-12-06 · Pratyush Yadav <pratyush@kernel.org>
• STALE191d [RFC PATCH 10/10] liveupdate: allow preserving hugetlb-backed memfd
  2025-12-06 · Pratyush Yadav <pratyush@kernel.org>
• STALE192d [PATCH -next 5/5] mm/mglru: factor lrugen state out of shrink_lruvec
  2025-12-09 · Chen Ridong <hidden>