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 v3 00/26] Introduce meminspect
  2026-07-08 05:37 · 8 replies in 7d · Mukesh Ojha <hidden>
• WARM1d [PATCH 0/8] mm/khugepaged: several cleanups
  2026-07-06 16:33 · 8 replies in 7d · Nico Pache <npache@redhat.com>
• HOTtoday [RFC PATCH 0/6] mm/hugetlb: Dynamic, NUMA-aware HugePage Cache & Free Page Reporting
  2026-07-07 06:42 · 5 replies in 7d · Sourav Panda <hidden>
• WARM1d [PATCH v9 00/15] userfaultfd: working set tracking for VM guest memory
  2026-07-06 08:48 · 9 replies in 7d · Kiryl Shutsemau <hidden>
• HOTtoday [PATCH v8 0/3] mm: clean up folio LRU and swap declarations
  2026-07-07 16:12 · 3 replies in 7d · Jianyue Wu <hidden>
• HOTtoday [PATCH v7 0/8] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings
  2026-07-07 19:47 · 2 replies in 7d · Stanislav Kinsburskii <hidden>
• HOTtoday [PATCH v7 0/6] alloc_tag: introduce IOCTL-based filtering for MAP
  2026-07-06 18:25 · 4 replies in 7d · Abhishek Bapat <hidden>
• HOTtoday [PATCH v19 00/40] DEPT(DEPendency Tracker)
  2026-07-06 06:21 · 3 replies in 7d · Byungchul Park <byungchul@sk.com>
• WARM1d [PATCH v6 0/4] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings
  2026-07-06 17:55 · 2 replies in 7d · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH v7 0/3] mm: clean up folio LRU and swap declarations
  2026-07-05 14:13 · 3 replies in 7d · Jianyue Wu <hidden>

Active reviewers (last 30 days)

• David Hildenbrand <david@kernel.org>
  31 attestations (14 Acked-by, 17 Suggested-by) · last on 2026-07-07
• Mike Rapoport (Microsoft) <rppt@kernel.org>
  27 attestations (12 Acked-by, 15 Reviewed-by) · last on 2026-07-06
• Baoquan He <hidden>
  12 attestations (12 Suggested-by) · last on 2026-07-07
• Johannes Weiner <hannes@cmpxchg.org>
  12 attestations (10 Acked-by, 2 Suggested-by) · last on 2026-07-07
• SeongJae Park <sj@kernel.org>
  9 attestations (3 Acked-by, 6 Reviewed-by) · last on 2026-07-06
• Barry Song <baohua@kernel.org>
  8 attestations (8 Suggested-by) · last on 2026-07-07
• Miaohe Lin <linmiaohe@huawei.com>
  8 attestations (8 Acked-by) · last on 2026-06-30
• Lorenzo Stoakes <ljs@kernel.org>
  7 attestations (7 Reviewed-by) · last on 2026-07-07
• Yosry Ahmed <yosry@kernel.org>
  7 attestations (1 Reported-by, 6 Suggested-by) · last on 2026-06-29
• Matthew Wilcox <willy@infradead.org>
  6 attestations (6 Suggested-by) · last on 2026-07-07

Recent patches

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

• HOTtoday [PATCH v3 20/26] mm/sparse: Register information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v3 19/26] mm/numa: Register node data information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v3 17/26] mm/mm_init: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v3 14/26] mm/init-mm: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v3 11/26] mm/swapfile: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v3 10/26] mm/show_mem: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v3 09/26] mm/page_alloc: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v3 03/26] mm/percpu: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• HOTtoday [PATCH v7 2/8] mm/hmm: add hmm_range_fault_unlocked_timeout() for mmap lock-drop support
  2026-07-07 · Stanislav Kinsburskii <hidden>
• HOTtoday [PATCH v7 1/8] mm/hmm: move page fault handling out of walk callbacks
  2026-07-07 · Stanislav Kinsburskii <hidden>
• HOTtoday REVIEWED: 7 (7M) [PATCH v8 3/3] mm: move reclaim-internal declarations out of swap.h
  2026-07-07 · Jianyue Wu <hidden>
• HOTtoday REVIEWED: 32 (32M) [PATCH v8 2/3] mm: rename swap.c to folio.c
  2026-07-07 · Jianyue Wu <hidden>
• HOTtoday REVIEWED: 24 (24M) [PATCH v8 1/3] mm/swap: colocate page-cluster sysctl with swap readahead
  2026-07-07 · Jianyue Wu <hidden>
• HOTtoday [PATCH 6/6] mm/hugetlb: support free page reporting for cached hugepages
  2026-07-07 · Sourav Panda <hidden>
• HOTtoday [PATCH 4/6] mm/hugetlb: add memory shrinker for cache
  2026-07-07 · Sourav Panda <hidden>
• HOTtoday [PATCH 2/6] mm/hugetlb: implement cache recycling and allocation
  2026-07-07 · Sourav Panda <hidden>
• HOTtoday [PATCH 3/6] mm/hugetlb: add sysfs interfaces for cache
  2026-07-07 · Sourav Panda <hidden>
• HOTtoday [PATCH 1/6] mm/hugetlb: add Kconfig and basic cache infrastructure
  2026-07-07 · Sourav Panda <hidden>
• HOTtoday REVIEWED: 9 (9M) [PATCH v7 4/6] alloc_tag: add accuracy based filtering to ioctl
  2026-07-06 · Abhishek Bapat <hidden>
• HOTtoday REVIEWED: 9 (9M) [PATCH v7 3/6] alloc_tag: add size-based filtering to ioctl
  2026-07-06 · Abhishek Bapat <hidden>
• HOTtoday REVIEWED: 9 (9M) [PATCH v7 2/6] alloc_tag: add ioctl filters to /proc/allocinfo
  2026-07-06 · Abhishek Bapat <hidden>
• HOTtoday REVIEWED: 2 (2M) [PATCH v7 1/6] alloc_tag: add ioctl to /proc/allocinfo
  2026-07-06 · Abhishek Bapat <hidden>
• WARM1d [PATCH v6 2/4] mm/hmm: add hmm_range_fault_unlocked() for mmap lock-drop support
  2026-07-06 · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH v6 1/4] mm/hmm: move page fault handling out of walk callbacks
  2026-07-06 · Stanislav Kinsburskii <hidden>
• WARM1d Re: [PATCH 5/8] mm/khugepaged: Refactor the PTE state checks into a helper
  2026-07-06 · Nico Pache <npache@redhat.com>
• WARM1d [PATCH 7/8] mm/khugepaged: clarify a comment regarding max_ptes_none check
  2026-07-06 · Nico Pache <npache@redhat.com>
• WARM1d [PATCH 6/8] mm/khugepaged: unmap pte before releasing vma write lock
  2026-07-06 · Nico Pache <npache@redhat.com>
• WARM1d [PATCH 5/8] mm/khugepaged: Refactor the PTE state checks into a helper
  2026-07-06 · Nico Pache <npache@redhat.com>
• WARM1d [PATCH 4/8] mm/khugepaged: fix outdated comments
  2026-07-06 · Nico Pache <npache@redhat.com>
• WARM1d [PATCH 3/8] mm/khugepaged: introduce a count_collapse_event() helper
  2026-07-06 · Nico Pache <npache@redhat.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.

• STALE189d 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
• STALE161d 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
• STALE169d 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
• STALE169d 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
• STALE169d 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
• STALE169d REVIEWED: 3 (3M) [PATCHv3 12/15] hugetlb: Remove VMEMMAP_SYNCHRONIZE_RCU
  2026-01-15 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE169d 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
• STALE167d 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
• STALE160d 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
• STALE160d 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.

• STALE183d [PATCH -next v2 3/7] mm/mglru: make calls to flush_reclaim_state() similar for MGLRU and non-MGLRU
  2025-12-24 · Chen Ridong <hidden>
• STALE183d [PATCH -next v2 5/7] mm/mglru: extend lru_gen_shrink_lruvec to support root reclaim
  2025-12-24 · Chen Ridong <hidden>
• STALE183d [PATCH -next v2 4/7] mm/mglru: rename should_abort_scan to lru_gen_should_abort_scan
  2025-12-24 · Chen Ridong <hidden>
• STALE189d [PATCH next v2 2/2] mm/huge_memory: Use per-VMA hugepage flag hints for exec THP COW
  2025-12-26 · Zhang Qilong <hidden>
• STALE186d [PATCH 22/28] arch, mm: consolidate initialization of nodes, zones and memory map
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE186d [PATCH 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE186d [PATCH 26/28] mm, arch: consolidate hugetlb CMA reservation
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE138d [PATCH v2 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE138d [PATCH v2 26/28] mm, arch: consolidate hugetlb CMA reservation
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE173d [RFC PATCH v3 2/8] mm: constify oom_control, scan_control, and alloc_context nodemask
  2026-01-08 · Gregory Price <gourry@gourry.net>