memory management - misc · 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 Documentation/ABI/testing/sysfs-kernel-mm
• F Documentation/ABI/testing/sysfs-kernel-mm-cma
• F Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
• F Documentation/ABI/testing/sysfs-kernel-mm-numa
• F Documentation/admin-guide/mm/
• F Documentation/mm/
• F include/linux/cma.h
• F include/linux/dmapool.h
• F include/linux/ioremap.h
• F include/linux/memory-tiers.h
• F include/linux/page_idle.h
• F mm/backing-dev.c
• F mm/cma.c
• F mm/cma_debug.c
• F mm/cma_sysfs.c
• F mm/dmapool.c
• F mm/dmapool_test.c
• F mm/early_ioremap.c
• F mm/fadvise.c
• F mm/ioremap.c
• F mm/mapping_dirty_helpers.c
• F mm/memory-tiers.c
• F mm/page_idle.c
• F mm/pgalloc-track.h
• F mm/process_vm_access.c
• F tools/testing/selftests/mm/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v8 0/8] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings
  2026-07-10 21:26 · 2 replies in 7d · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH 00/19] mm/damon: introduce data attributes only monitoring
  2026-07-10 13:47 · 2 replies in 7d · SJ Park <sj@kernel.org>
• WARM2d IN LINUX-NEXT [PATCH v10 00/15] userfaultfd: working set tracking for VM guest memory
  2026-07-09 12:57 · 5 replies in 7d · Kiryl Shutsemau <hidden>
• WARM1d [RFC PATCH v1.3 00/19] mm/damon: introduce data attributes only monitoring
  2026-07-10 00:24 · 2 replies in 7d · SJ Park <sj@kernel.org>
• WARM1d [RFC PATCH v1.2 00/19] mm/damon: introduce data attributes only monitoring
  2026-07-09 14:06 · 2 replies in 7d · SJ Park <sj@kernel.org>
• 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>
• WARM2d [PATCH v8 0/6] alloc_tag: introduce IOCTL-based filtering for MAP
  2026-07-08 18:01 · 1 reply in 7d · Abhishek Bapat <hidden>
• COOLING5d [PATCH v9 00/15] userfaultfd: working set tracking for VM guest memory
  2026-07-06 10:49 · 5 replies in 7d · Kiryl Shutsemau <hidden>
• COOLING4d [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>
• COOLING4d [RFC PATCH v1.1 00/16] mm/damon: introduce data attributes only monitoring
  2026-07-06 14:19 · 2 replies in 7d · SJ Park <sj@kernel.org>

Active reviewers (last 30 days)

• Mike Rapoport (Microsoft) <rppt@kernel.org>
  14 attestations (4 Acked-by, 10 Reviewed-by) · last on 2026-07-09
• Hao Ge <hao.ge@linux.dev>
  3 attestations (3 Acked-by) · last on 2026-07-08
• Lorenzo Stoakes <ljs@kernel.org>
  2 attestations (1 Reviewed-by, 1 Suggested-by) · last on 2026-07-06
• Yosry Ahmed <yosry@kernel.org>
  2 attestations (2 Suggested-by) · last on 2026-06-29
• Nhat Pham <nphamcs@gmail.com>
  2 attestations (2 Suggested-by) · last on 2026-06-29
• Jo Van Bulck <hidden>
  1 attestation (1 Co-developed-by) · last on 2026-07-01
• Randy Dunlap <hidden>
  1 attestation (1 Acked-by) · last on 2026-06-29
• SJ Park <sj@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-06-29
• Vlastimil Babka (SUSE) <vbabka@kernel.org>
  1 attestation (1 Suggested-by) · last on 2026-06-23

Recent patches

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

• HOTtoday [PATCH v8 3/8] selftests/mm: add HMM test for mmap lock-dropping faults
  2026-07-10 · Stanislav Kinsburskii <hidden>
• HOTtoday [PATCH v8 2/8] mm/hmm: add hmm_range_fault_unlocked_timeout() for mmap lock-drop support
  2026-07-10 · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH 17/19] Docs/mm/damon/design: document attrs-only monitoring
  2026-07-10 · SJ Park <sj@kernel.org>
• WARM1d [PATCH 18/19] Docs/admin-guide/mm/damon/usage: document weight sysfs file
  2026-07-10 · SJ Park <sj@kernel.org>
• WARM1d [RFC PATCH v1.3 18/19] Docs/admin-guide/mm/damon/usage: document weight sysfs file
  2026-07-10 · SJ Park <sj@kernel.org>
• WARM1d [RFC PATCH v1.3 17/19] Docs/mm/damon/design: document attrs-only monitoring
  2026-07-10 · SJ Park <sj@kernel.org>
• WARM1d [RFC PATCH v1.2 18/19] Docs/admin-guide/mm/damon/usage: document weight sysfs file
  2026-07-09 · SJ Park <sj@kernel.org>
• WARM1d [RFC PATCH v1.2 17/19] Docs/mm/damon/design: document attrs-only monitoring
  2026-07-09 · SJ Park <sj@kernel.org>
• DORMANTno replies IN LINUX-NEXT: 11 (11M) Re: [PATCH v10 14/15] selftests/mm: add userfaultfd RWP tests
  2026-07-09 · Kiryl Shutsemau <hidden>
• WARM2d REVIEWED: 2 (2M) [PATCH v8 1/6] alloc_tag: add ioctl to /proc/allocinfo
  2026-07-08 · Abhishek Bapat <hidden>
• WARM2d IN LINUX-NEXT [PATCH v10 15/15] Documentation/userfaultfd: document RWP working set tracking
  2026-07-08 · Kiryl Shutsemau <hidden>
• WARM2d REVIEWED: 11 (11M) [PATCH v10 14/15] selftests/mm: add userfaultfd RWP tests
  2026-07-08 · Kiryl Shutsemau <hidden>
• WARM2d IN LINUX-NEXT: 11 (11M) [PATCH v10 11/15] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking
  2026-07-08 · Kiryl Shutsemau <hidden>
• WARM2d IN LINUX-NEXT: 11 (11M) [PATCH v10 09/15] userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing
  2026-07-08 · Kiryl Shutsemau <hidden>
• HOTtoday [PATCH v7 3/8] selftests/mm: add HMM tests for mmap lock-dropping faults
  2026-07-07 · Stanislav Kinsburskii <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>
• WARM2d [PATCH 5/6] Documentation/admin-guide/mm/hugetlbpage.rst: document cache interfaces
  2026-07-07 · Sourav Panda <hidden>
• WARM2d REVIEWED: 2 (2M) [PATCH v7 1/6] alloc_tag: add ioctl to /proc/allocinfo
  2026-07-06 · Abhishek Bapat <hidden>
• COOLING4d [PATCH v6 3/4] selftests/mm: add userfaultfd test for HMM unlocked path
  2026-07-06 · Stanislav Kinsburskii <hidden>
• COOLING4d [PATCH v6 2/4] mm/hmm: add hmm_range_fault_unlocked() for mmap lock-drop support
  2026-07-06 · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH 8/8] mm: Documentation: clarify where the mTHP stats live
  2026-07-06 · Nico Pache <npache@redhat.com>
• COOLING4d [RFC PATCH v1.1 15/16] Docs/admin-guide/mm/damon/usage: document weight sysfs file
  2026-07-06 · SJ Park <sj@kernel.org>
• COOLING4d [RFC PATCH v1.1 14/16] Docs/mm/damon/design: document attrs-only monitoring
  2026-07-06 · SJ Park <sj@kernel.org>
• COOLING5d REVIEWED: 11 (11M) [PATCH v9.1 14/15] selftests/mm: add userfaultfd RWP tests
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING5d [PATCH v9 15/15] Documentation/userfaultfd: document RWP working set tracking
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING5d REVIEWED: 11 (11M) [PATCH v9 14/15] selftests/mm: add userfaultfd RWP tests
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING5d REVIEWED: 11 (11M) [PATCH v9 11/15] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING5d REVIEWED: 11 (11M) [PATCH v9 09/15] userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING5d [RFC PATCH 14/16] Docs/mm/damon/design: document attrs-only monitoring
  2026-07-05 · SJ Park <sj@kernel.org>
• COOLING5d [RFC PATCH 15/16] Docs/admin-guide/mm/damon/usage: document weight sysfs file
  2026-07-05 · SJ Park <sj@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.

• STALE172d 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
• STALE163d 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
• STALE162d REVIEWED: 6 (6M) [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
• STALE162d REVIEWED: 3 (3M) [PATCHv5 16/17] hugetlb: Update vmemmap_dedup.rst
  2026-01-28 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE72d REVIEWED: 6 (6M) [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
• STALE72d REVIEWED: 3 (3M) [PATCHv6 16/17] hugetlb: Update vmemmap_dedup.rst
  2026-02-02 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE72d REVIEWED: 18 (18M) [PATCHv7 17/18] hugetlb: Update vmemmap_dedup.rst
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org> · 2 Reviewed-by
• STALE72d REVIEWED: 18 (18M) [PATCHv7 17/18] hugetlb: Update vmemmap_dedup.rst
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org> · 2 Reviewed-by
• STALE72d REVIEWED: 18 (18M) [PATCHv7.1 17/18] hugetlb: Update vmemmap_dedup.rst
  2026-03-02 · "Kiryl Shutsemau (Meta)" <kas@kernel.org> · 2 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2] Docs/mm/damon: document exclusivity of special-purpose modules
  2026-03-15 · SeongJae Park <sj@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.

• STALE177d [PATCH 03/12] Docs/mm/damon/design: update for nr_snapshots damos stat
  2025-12-16 · SeongJae Park <sj@kernel.org>
• STALE177d [PATCH 04/12] Docs/admin-guide/mm/damon/usage: update for nr_snapshots damos stat
  2025-12-16 · SeongJae Park <sj@kernel.org>
• STALE177d [PATCH 09/12] Docs/mm/damon/design: update for max_nr_snapshots
  2025-12-16 · SeongJae Park <sj@kernel.org>
• STALE177d [PATCH 10/12] Docs/admin-guide/mm/damon/usage: update for max_nr_snapshots
  2025-12-16 · SeongJae Park <sj@kernel.org>
• STALE189d [PATCH 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE141d [PATCH v2 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE172d [PATCHv3 15/15] hugetlb: Update vmemmap_dedup.rst
  2026-01-15 · Kiryl Shutsemau <kas@kernel.org>
• STALE173d [PATCH 1/8] Docs/mm/damon/index: simplify the intro
  2026-01-18 · SeongJae Park <sj@kernel.org>
• STALE173d [PATCH 2/8] Docs/mm/damon/design: link repology instead of Fedora package
  2026-01-18 · SeongJae Park <sj@kernel.org>
• STALE173d [PATCH 3/8] Docs/mm/damon/design: document DAMON sample modules
  2026-01-18 · SeongJae Park <sj@kernel.org>