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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)

• WARM1d PENDING · 1 of 15 reviewed [PATCH 00/15] mm/hugetlb: various fixes
  2026-10-28 20:16 · 12 replies in 7d · David Hildenbrand (Arm) <david@kernel.org>
• HOTtoday [PATCH v2 0/6] mm/slab: Support selecting slab hardening features at boot
  2026-10-29 06:09 · 6 replies in 7d · Chris Down <chris@chrisdown.name>
• WARM3d SUPERSEDED [PATCH 0/8] mm/slab: Support selecting slab hardening features at boot
  2026-10-27 07:36 · 8 replies in 7d · Chris Down <chris@chrisdown.name>
• WARM1d [PATCH v3 0/8] memcg: dma-buf cgroup accounting and charge transfer
  2026-10-27 15:04 · 5 replies in 7d · Albert Esteve <hidden>
• WARM3d IN LINUX-NEXT [PATCH] mm/hugetlb_vmemmap: map the shared tail page writable
  2026-10-28 13:26 · 0 replies in 7d · Kiryl Shutsemau <hidden>
• WARM3d [PATCH 0/3] mseal sysmap: Choose system mapping sealing at boot
  2026-10-27 11:43 · 2 replies in 7d · Chris Down <chris@chrisdown.name>
• WARM1d [PATCH 0/2] mm/shmem: trace swapin results and allocation fallbacks
  2026-10-27 09:40 · 2 replies in 7d · Xuewen Wang <hidden>
• WARM1d [PATCH v2 0/3] sched/numa: refine memory tiering promotion heuristics
  2026-10-28 04:14 · 1 reply in 7d · Li Zhe <hidden>
• WARM1d [PATCH 0/2] mm/vmscan: remove obsolete offlined memcg reclaim handling
  2026-10-28 01:06 · 1 reply in 7d · T.J. Mercier <tjmercier@google.com>
• WARM3d PENDING · 13 of 18 reviewed [PATCHv7 RESEND 00/17] mm: Eliminate fake head pages from vmemmap optimization
  2026-10-27 17:51 · 1 reply in 7d · Kiryl Shutsemau (Meta) <kas@kernel.org>

Active reviewers (last 30 days)

• Zi Yan <ziy@nvidia.com>
  69 attestations (27 Acked-by, 42 Reviewed-by) · last on 2026-10-13
• David Hildenbrand (Arm) <david@kernel.org>
  42 attestations (40 Acked-by, 2 Reported-by) · last on 2026-10-28
• Suren Baghdasaryan <surenb@google.com>
  21 attestations (21 Reviewed-by) · last on 2026-10-13
• Gregory Price (Meta) <gourry@gourry.net>
  15 attestations (15 Reviewed-by) · last on 2026-10-13
• Marc Zyngier <maz@kernel.org>
  6 attestations (6 Acked-by) · last on 2026-10-13
• Josef Bacik <josef@toxicpanda.com>
  5 attestations (5 Reported-by) · last on 2026-10-28
• Vlastimil Babka <vbabka@kernel.org>
  3 attestations (3 Suggested-by) · last on 2026-10-29
• Kairui Song <kasong@tencent.com>
  3 attestations (3 Suggested-by) · last on 2026-10-21
• Claudio Imbrenda <imbrenda@linux.ibm.com>
  3 attestations (3 Acked-by) · last on 2026-10-13
• Anup Patel <anup@brainfault.org>
  3 attestations (3 Acked-by) · last on 2026-10-13

Recent patches

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

• HOTtoday [PATCH v2 6/6] slub_kunit: Add a test for the kmalloc_partition boot parameter
  2026-10-29 · Chris Down <chris@chrisdown.name>
• HOTtoday [PATCH v2 5/6] mm/slab: Support disabling KMALLOC_PARTITION_CACHES at boot
  2026-10-29 · Chris Down <chris@chrisdown.name>
• HOTtoday [PATCH v2 4/6] slub_kunit: Add a test for the slab_buckets boot parameter
  2026-10-29 · Chris Down <chris@chrisdown.name>
• HOTtoday [PATCH v2 3/6] mm/slab: Support disabling SLAB_BUCKETS at boot
  2026-10-29 · Chris Down <chris@chrisdown.name>
• HOTtoday [PATCH v2 2/6] mm/slab: Enable SLAB_FREELIST_RANDOM by default
  2026-10-29 · Chris Down <chris@chrisdown.name>
• HOTtoday [PATCH v2 1/6] mm/slab: Enable SLAB_FREELIST_HARDENED by default
  2026-10-29 · Chris Down <chris@chrisdown.name>
• WARM1d [PATCH 15/15] RFC: mm/hugetlb: delay anon folio rmap removal until after the TLB flush
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 14/15] RFC: mm/hugetlb: account restored reservations before freeing folios
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 13/15] mm/hugetlb: fix reservation leak on min_size= mounts
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 12/15] mm/hugetlb: keep surplus folios that are reserved
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 10/15] mm/hugetlb: count again if the reserve map shrank
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 09/15] mm/memfd: recheck the page cache before allocating a hugetlb folio
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 08/15] mm/hugetlb: serialize page-cache allocations with truncation
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 06/15] mm/hugetlb: fix mremap() racing with page migration
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 05/15] mm/hugetlb: keep surplus folios when the pool shrinks
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 04/15] mm/hugetlb: account temporary folios separately
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 03/15] mm/hugetlb: preserve reservations when shrinking on HIGHMEM
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM1d [PATCH 02/15] mm/hugetlb: compare against persistent count when freeing lowmem folios
  2026-10-28 · David Hildenbrand (Arm) <david@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH] mm/hugetlb_vmemmap: map the shared tail page writable
  2026-10-28 · Kiryl Shutsemau <hidden>
• WARM1d [PATCH v2 2/3] sched/numa: do not feed tiering promotions into task placement stats
  2026-10-28 · Li Zhe <hidden>
• WARM1d [PATCH 2/2] mm/mglru: stop rotating offlined memcgs to the old generation
  2026-10-28 · T.J. Mercier <tjmercier@google.com>
• WARM3d Re: [PATCHv7 13/18] mm: Drop fake head checks
  2026-10-27 · Kiryl Shutsemau <kas@kernel.org>
• COOLING4d [PATCH RFC 1/2] kcov: collect early boot coverage of init_task
  2026-10-27 · Yunseong Kim <hidden>
• WARM1d [PATCH v3 7/8] dma-buf: transfer memcg charges via DMA_BUF_IOCTL_XFER_CHARGE
  2026-10-27 · Albert Esteve <hidden>
• WARM1d [PATCH v3 4/8] security: dma-buf: Add dma_buf_charge_cgroup LSM hook
  2026-10-27 · Albert Esteve <hidden>
• WARM1d [PATCH v3 3/8] security: dma-buf: Add dma_buf_charge_task LSM hook
  2026-10-27 · Albert Esteve <hidden>
• WARM1d [PATCH v3 2/8] dma-heap: charge dma-buf memory via explicit memcg
  2026-10-27 · Albert Esteve <hidden>
• WARM1d [PATCH v3 1/8] memcg: Add MEMCG_DMABUF accounting infrastructure
  2026-10-27 · Albert Esteve <hidden>
• WARM3d [PATCH 2/3] mseal sysmap: Allow with CHECKPOINT_RESTORE, default off
  2026-10-27 · Chris Down <chris@chrisdown.name>
• WARM3d [PATCH 1/3] mseal sysmap: Add mseal_system_mappings= boot parameter
  2026-10-27 · Chris Down <chris@chrisdown.name>

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.

• STALE187d REVIEWED: 1 (1M) [PATCH v9] mm/damon: add node_eligible_mem_bp goal metric
  2026-04-26 · Ravi Jonnalagadda <hidden> · 1 Reviewed-by
• STALE187d REVIEWED: 1 (1M) [PATCH v9.1] mm/damon: add node_eligible_mem_bp goal metric
  2026-04-27 · Ravi Jonnalagadda <hidden> · 1 Reviewed-by
• STALE159d REVIEWED: 1 (1M) [PATCH mm-unstable v17 10/14] mm/khugepaged: introduce collapse_allowable_orders helper function +13 more in this series
  2026-05-11 · Nico Pache <hidden> · 1 Reviewed-by
• STALE152d REVIEWED: 1 (1M) [PATCH v5 16/18] userfaultfd: add UFFDIO_SET_MODE for runtime sync/async toggle +17 more in this series
  2026-05-26 · Kiryl Shutsemau <hidden> · 1 Reviewed-by
• STALE150d REVIEWED: 2 (2M) [PATCH v6 03/15] mm: rename uffd-wp PTE accessors to uffd +14 more in this series
  2026-05-29 · Kiryl Shutsemau (Meta) <kas@kernel.org> · 2 Reviewed-by
• STALE94d REVIEWED: 3 (3M) [PATCH v4 02/16] mm: hugetlb: Return -ENOSPC on memcg charge failure +15 more in this series
  2026-07-22 · Ackerley Tng via B4 Relay <devnull+ackerleytng.google.com@kernel.org> · 2 Reviewed-by, 1 Tested-by
• COLD34d REVIEWED: 1 (1M) [PATCH v3 1/4] mm: hugetlb: Track used_hpages when getting/putting pages from subpool +3 more in this series
  2026-09-16 · Ackerley Tng via B4 Relay <devnull+ackerleytng.google.com@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.

• STALE201d [PATCH RFC 01/13] mm/rmap: remove folio->_nr_pages_mapped +12 more in this series
  2026-04-12 · David Hildenbrand (Arm) <david@kernel.org>
• STALE186d [RFC 3/7] mm: add Kconfig options for page consistency checker +6 more in this series
  2026-04-24 · Sasha Levin <sashal@kernel.org>
• STALE161d [PATCH 1/5] mm: add basic madvise helpers and branch for THP setup +4 more in this series
  2026-05-01 · Luka Bai <hidden>
• STALE151d [PATCH v6 03/22] mm: swap: add an abstract API for locking out swapoff +21 more in this series
  2026-05-05 · Nhat Pham <nphamcs@gmail.com>
• STALE178d [PATCH 1/2] mm/page_counter: decouple peak_reset from peak_write +1 more in this series
  2026-05-06 · Thadeu Lima de Souza Cascardo <hidden>
• STALE171d [RFC PATCH 1/5] mm: zswap: decompress into a folio subpage +4 more in this series
  2026-05-08 · fujunjie <hidden>
• STALE159d [PATCH mm-unstable v17 08/14] mm/khugepaged: add per-order mTHP collapse failure statistics +13 more in this series
  2026-05-11 · Nico Pache <hidden>
• STALE165d [PATCH RFC 1/5] memcg: Track exported dma-buffers +4 more in this series
  2026-05-12 · Albert Esteve <hidden>
• STALE164d [PATCH v2 1/3] mm/hmm: move page fault handling out of walk callbacks +2 more in this series
  2026-05-13 · Stanislav Kinsburskii <hidden>
• STALE158d [RFC PATCH 1/7] mm/damon/core: refcount ops owner module to prevent rmmod UAF +6 more in this series
  2026-05-16 · Ravi Jonnalagadda <hidden>