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 [RFC PATCH 00/17] mm/damon: introduce data access-as-a-data attribute
  2026-07-25 21:02 · 3 replies in 7d · SJ Park <sj@kernel.org>
• HOTtoday [PATCH v2 0/5] selftests/mm: Handle unsupported and transient test conditions
  2026-07-24 10:25 · 5 replies in 7d · Muhammad Usama Anjum <hidden>
• WARM1d [PATCH RFC v4 0/12] mm: use per-VMA lock in __access_remote_vm for improved monitoring reliability
  2026-07-24 22:30 · 2 replies in 7d · Rik van Riel <riel@surriel.com>
• WARM1d [PATCH] selftests/mm: fix gup_longterm EINVAL error message
  2026-07-24 07:47 · 1 reply in 7d · zhaozhengzhuo <hidden>
• WARM1d [PATCH v11 0/8] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings
  2026-07-23 17:36 · 2 replies in 7d · Stanislav Kinsburskii <hidden>
• WARM2d [PATCH RESEND v1 0/5] selftests/mm: Handle unsupported and transient test conditions
  2026-07-22 09:12 · 5 replies in 7d · Muhammad Usama Anjum <hidden>
• WARM3d IN LINUX-NEXT [PATCH v10 0/8] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings
  2026-07-22 21:44 · 2 replies in 7d · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH v5 00/11] mm: PMD-level swap entries for anonymous THPs
  2026-07-22 15:22 · 2 replies in 7d · Usama Arif <usama.arif@linux.dev>
• WARM3d [PATCH] mm/page_idle: call folio_test_lru() after folio_get()
  2026-07-22 11:21 · 1 reply in 7d · Jiale Yao <hidden>
• WARM1d [PATCH v6 0/2] mm/memory_hotplug: optimize zone contiguous check when changing pfn range
  2026-07-23 08:45 · 1 reply in 7d · Yuan Liu <hidden>

Active reviewers (last 30 days)

• Mike Rapoport (Microsoft) <rppt@kernel.org>
  19 attestations (9 Acked-by, 10 Reviewed-by) · last on 2026-07-09
• Kevin Brodsky <hidden>
  10 attestations (5 Reviewed-by, 5 Tested-by) · last on 2026-07-06
• David Hildenbrand (arm) <david@kernel.org>
  7 attestations (2 Acked-by, 3 Co-developed-by, 1 Reviewed-by, 1 Suggested-by) · last on 2026-07-22
• Lorenzo Stoakes <ljs@kernel.org>
  5 attestations (3 Reviewed-by, 2 Suggested-by) · last on 2026-07-22
• Liam R. Howlett (Oracle) <liam@infradead.org>
  5 attestations (5 Acked-by) · last on 2026-07-06
• Sarthak Sharma <hidden>
  3 attestations (1 Reviewed-by, 2 Tested-by) · last on 2026-07-24
• SJ Park <sj@kernel.org>
  3 attestations (3 Reviewed-by) · last on 2026-07-10
• Sashiko AI review <sashiko-bot@kernel.org>
  2 attestations (2 Reported-by) · last on 2026-07-13
• Yosry Ahmed <yosry@kernel.org>
  2 attestations (2 Suggested-by) · last on 2026-07-13
• Hao Ge <hao.ge@linux.dev>
  2 attestations (2 Acked-by) · last on 2026-07-08

Recent patches

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

• HOTtoday [RFC PATCH 15/17] Docs/mm/damon/design: document probe preps
  2026-07-25 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH 16/17] Docs/admin-guide/mm/damon/usage: document probe preps sysfs files
  2026-07-25 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH 04/17] Docs/mm/damon/design: document pgidle_unset probe filter type
  2026-07-25 · SJ Park <sj@kernel.org>
• WARM1d [PATCH RFC v4 12/12] selftests/mm: add a slow-GUP content and COW test for mTHP
  2026-07-24 · Rik van Riel <riel@surriel.com>
• WARM1d [PATCH RFC v4 08/12] selftests/mm: cover /proc/pid/mem access to VM_PFNMAP memory
  2026-07-24 · Rik van Riel <riel@surriel.com>
• HOTtoday [PATCH v2 5/5] selftests/mm: retry migration failures for the full runtime
  2026-07-24 · Muhammad Usama Anjum <hidden>
• HOTtoday [PATCH v2 4/5] selftests/mm: skip hard dirty page-cache test on NFS
  2026-07-24 · Muhammad Usama Anjum <hidden>
• HOTtoday [PATCH v2 3/5] selftests/mm: skip khugepaged swap tests without swap
  2026-07-24 · Muhammad Usama Anjum <hidden>
• HOTtoday REVIEWED: 1 (0M) [PATCH v2 2/5] selftests/mm: skip guard hole-punch test if MADV_REMOVE is unsupported
  2026-07-24 · Muhammad Usama Anjum <hidden>
• HOTtoday REVIEWED: 1 (0M) [PATCH v2 1/5] selftests/mm: skip COW tmpfile cases when fallocate() is unsupported
  2026-07-24 · Muhammad Usama Anjum <hidden>
• WARM1d REVIEWED: 1 (0M) [PATCH v2] selftests/mm: fix gup_longterm EINVAL error message
  2026-07-24 · zhaozhengzhuo <hidden>
• WARM1d [PATCH] selftests/mm: fix gup_longterm EINVAL error message
  2026-07-24 · zhaozhengzhuo <hidden>
• WARM1d [PATCH v11 3/8] selftests/mm: add HMM test for mmap lock-dropping faults
  2026-07-23 · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH v11 2/8] mm/hmm: add hmm_range_fault_unlocked_timeout() for mmap lock-drop support
  2026-07-23 · Stanislav Kinsburskii <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v6 1/2] mm/memory_hotplug: optimize zone contiguous check when changing pfn range
  2026-07-23 · Yuan Liu <hidden>
• WARM3d [PATCH v4 01/16] mm: hugetlb: Track used_hpages when getting/putting pages from subpool
  2026-07-22 · Ackerley Tng via B4 Relay <devnull+ackerleytng.google.com@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v10 3/8] selftests/mm: add HMM test for mmap lock-dropping faults
  2026-07-22 · Stanislav Kinsburskii <hidden>
• WARM3d IN LINUX-NEXT [PATCH v10 2/8] mm/hmm: add hmm_range_fault_unlocked_timeout() for mmap lock-drop support
  2026-07-22 · Stanislav Kinsburskii <hidden>
• WARM1d [PATCH v5 11/11] selftests/mm: add PMD swap entry tests
  2026-07-22 · Usama Arif <usama.arif@linux.dev>
• WARM1d [PATCH v5 10/11] mm: install PMD swap entries on swap-out
  2026-07-22 · Usama Arif <usama.arif@linux.dev>
• DORMANTno replies IN LINUX-NEXT: 25 (25M) [PATCH v2 2/2] selftests/mm: Fix potential wild pointer access of getline due to missing init
  2026-07-22 · Chris Gellermann <hidden>
• WARM3d REVIEWED: 10 (10M) Re:Re: [PATCH] mm/page_idle: call folio_test_lru() after folio_get()
  2026-07-22 · jiale yao <hidden>
• WARM3d [PATCH] mm/page_idle: call folio_test_lru() after folio_get()
  2026-07-22 · Jiale Yao <hidden>
• WARM2d [PATCH RESEND v1 5/5] selftests/mm: retry migration failures for the full runtime
  2026-07-22 · Muhammad Usama Anjum <hidden>
• WARM2d [PATCH RESEND v1 4/5] selftests/mm: skip page-cache hwpoison tests on NFS
  2026-07-22 · Muhammad Usama Anjum <hidden>
• WARM2d [PATCH RESEND v1 3/5] selftests/mm: skip khugepaged swap tests without swap
  2026-07-22 · Muhammad Usama Anjum <hidden>
• WARM2d [PATCH RESEND v1 2/5] selftests/mm: skip guard hole-punch test if MADV_REMOVE is unsupported
  2026-07-22 · Muhammad Usama Anjum <hidden>
• WARM2d [PATCH RESEND v1 1/5] selftests/mm: skip COW tmpfile cases when fallocate() is unsupported
  2026-07-22 · Muhammad Usama Anjum <hidden>
• WARM3d [RFC PATCH 2/2] selftests/mm: add pc-dimm ACPI eject selftest for offline_migrate_max_passes
  2026-07-22 · Aboorva Devarajan <hidden>
• WARM3d [RFC PATCH 1/2] mm/memory_hotplug: bound offline retry loops with a configurable limit
  2026-07-22 · Aboorva Devarajan <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.

• STALE187d 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
• STALE178d 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
• STALE179d REVIEWED: 11 (11M) [PATCH v6 4/4] kho: document kexec-metadata tracking feature
  2026-01-27 · Breno Leitao <leitao@debian.org> · 1 Reviewed-by
• STALE177d 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
• STALE177d REVIEWED: 3 (3M) [PATCHv5 16/17] hugetlb: Update vmemmap_dedup.rst
  2026-01-28 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE87d 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
• STALE87d REVIEWED: 3 (3M) [PATCHv6 16/17] hugetlb: Update vmemmap_dedup.rst
  2026-02-02 · Kiryl Shutsemau <kas@kernel.org> · 1 Reviewed-by
• STALE87d REVIEWED: 18 (18M) [PATCHv7 17/18] hugetlb: Update vmemmap_dedup.rst
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org> · 2 Reviewed-by
• STALE87d REVIEWED: 18 (18M) [PATCHv7 17/18] hugetlb: Update vmemmap_dedup.rst
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org> · 2 Reviewed-by
• STALE87d REVIEWED: 18 (18M) [PATCHv7.1 17/18] hugetlb: Update vmemmap_dedup.rst
  2026-03-02 · "Kiryl Shutsemau (Meta)" <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.

• STALE204d [PATCH 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE156d [PATCH v2 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE197d [PATCH v2 4/4] tools/testing/selftests: add forked (un)/faulted VMA merge tests
  2026-01-05 · Lorenzo Stoakes <hidden>
• STALE197d [PATCH v2 2/4] tools/testing/selftests: add tests for !tgt, src mremap() merges
  2026-01-05 · Lorenzo Stoakes <hidden>
• STALE186d [PATCH 1/3] selftests/mm: add memory failure anonymous page test
  2026-01-07 · Miaohe Lin <linmiaohe@huawei.com>
• STALE186d [PATCH 2/3] selftests/mm: add memory failure clean pagecache test
  2026-01-07 · Miaohe Lin <linmiaohe@huawei.com>
• STALE186d [PATCH 3/3] selftests/mm: add memory failure dirty pagecache test
  2026-01-07 · Miaohe Lin <linmiaohe@huawei.com>
• STALE185d [PATCH v2 1/8] selftests/mm: default KDIR to build directory
  2026-01-07 · Kevin Brodsky <hidden>
• DORMANTno replies [PATCH v5 2/2] kho: Remove finalize state and clients
  2026-01-13 · Jason Miu <hidden>
• STALE169d [PATCH v8 2/2] mm/vmscan: select the closest preferred node in demote_folio_list()
  2026-01-14 · Bing Jiao <hidden>