memory management - page allocator · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>
• M Vlastimil Babka <vbabka@kernel.org>
• R Suren Baghdasaryan <surenb@google.com>
• R Michal Hocko <mhocko@suse.com>
• R Brendan Jackman <jackmanb@google.com>
• R Johannes Weiner <hannes@cmpxchg.org>
• R Zi Yan <ziy@nvidia.com>

Paths

• F include/linux/compaction.h
• F include/linux/gfp.h
• F include/linux/page-isolation.h
• F include/linux/pageblock-flags.h
• F mm/compaction.c
• F mm/debug_page_alloc.c
• F mm/debug_page_ref.c
• F mm/fail_page_alloc.c
• F mm/page_alloc.c
• F mm/page_ext.c
• F mm/page_frag_cache.c
• F mm/page_isolation.c
• F mm/page_owner.c
• F mm/page_poison.c
• F mm/page_reporting.c
• F mm/page_reporting.h
• F mm/show_mem.c
• F mm/shuffle.c
• F mm/shuffle.h

Last 30 days

Most active threads (last 7 days)

• WARM1d [PATCH v5 00/36] Private Memory NUMA Nodes
  2026-07-20 19:35 · 7 replies in 7d · Gregory Price <gourry@gourry.net>

Recent patches

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

• WARM1d [PATCH v5 26/36] mm: add NODE_PRIVATE_CAP_RECLAIM for opted-in private node reclaim
  2026-07-20 · Gregory Price <gourry@gourry.net>
• WARM1d [PATCH v5 12/36] mm/page_alloc: clear private node watermarks and system reserves
  2026-07-20 · Gregory Price <gourry@gourry.net>
• WARM1d [PATCH v5 11/36] mm/compaction: disallow compaction on private nodes
  2026-07-20 · Gregory Price <gourry@gourry.net>
• WARM1d [PATCH v5 05/36] mm: add ZONELIST_PRIVATE(_NOFALLBACK) for N_MEMORY_PRIVATE nodes.
  2026-07-20 · Gregory Price <gourry@gourry.net>
• WARM1d [PATCH v5 03/36] mm/page_alloc: let the bulk and folio allocators carry alloc_flags
  2026-07-20 · Gregory Price <gourry@gourry.net>
• WARM1d [PATCH v5 02/36] mm/page_alloc: refactor build_node_zonelist() out of build_zonelists()
  2026-07-20 · Gregory Price <gourry@gourry.net>
• WARM1d [PATCH v5 01/36] mm: refactor find_next_best_node to find_next_best_node_in
  2026-07-20 · Gregory Price <gourry@gourry.net>
• COOLING14d [PATCH v3 10/26] mm/show_mem: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• COOLING14d [PATCH v3 09/26] mm/page_alloc: Annotate static information into meminspect
  2026-07-08 · Mukesh Ojha <hidden>
• COLD16d [PATCH 6/6] mm/hugetlb: support free page reporting for cached hugepages
  2026-07-07 · Sourav Panda <hidden>
• COOLING11d [PATCH v4 3/4] swap: apply new pw_queue_on() interface
  2026-05-19 · Leonardo Bras <hidden>
• STALE87d [PATCH v2] mm/page_alloc: trace PCP refills and PCP zone lock usage
  2026-04-27 · Bunyod Suvonov <hidden>
• STALE88d [RFC 5/7] mm/page_alloc: integrate page consistency hooks
  2026-04-24 · Sasha Levin <sashal@kernel.org>
• STALE101d [PATCH v2 08/12] workqueue, mm: Support dynamic housekeeping mask updates
  2026-04-13 · Qiliang Yuan <hidden>
• DORMANTno replies [PATCH RFC 13/13] mm/rmap: support arbitrary folio mappings
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE103d [PATCH RFC 10/13] mm: re-consolidate folio->_pincount
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE103d [PATCH RFC 08/13] mm: re-consolidate folio->_entire_mapcount
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE103d [PATCH RFC 01/13] mm/rmap: remove folio->_nr_pages_mapped
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE65d [PATCH v2 09/25] mm/show_mem: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE65d [PATCH v2 08/25] mm/page_alloc: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE86d REVIEWED: 22 (21M) [PATCHv7 03/18] mm: Rename the 'compound_head' field in the 'struct page' to 'compound_info'
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE86d REVIEWED: 22 (21M) [PATCHv7 02/18] mm: Change the interface of prep_compound_tail()
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE86d REVIEWED: 22 (21M) [PATCHv7 03/18] mm: Rename the 'compound_head' field in the 'struct page' to 'compound_info'
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE86d REVIEWED: 22 (21M) [PATCHv7 02/18] mm: Change the interface of prep_compound_tail()
  2026-02-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE86d 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>
• STALE86d REVIEWED: 6 (6M) [PATCHv6 02/17] mm: Change the interface of prep_compound_tail()
  2026-02-02 · Kiryl Shutsemau <kas@kernel.org>
• STALE176d 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>
• STALE176d REVIEWED: 6 (6M) [PATCHv5 02/17] mm: Change the interface of prep_compound_tail()
  2026-01-28 · Kiryl Shutsemau <kas@kernel.org>
• STALE159d REVIEWED: 1 (0M) [PATCH mm-unstable v14 01/16] mm: introduce is_pmd_order helper
  2026-01-22 · Nico Pache <npache@redhat.com>
• STALE177d 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>

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.

• STALE186d 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
• STALE186d 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
• STALE177d 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
• STALE177d 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
• STALE176d REVIEWED: 6 (6M) [PATCHv5 02/17] mm: Change the interface of prep_compound_tail()
  2026-01-28 · Kiryl Shutsemau <kas@kernel.org> · 2 Reviewed-by
• STALE176d 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
• STALE86d REVIEWED: 6 (6M) [PATCHv6 02/17] mm: Change the interface of prep_compound_tail()
  2026-02-02 · Kiryl Shutsemau <kas@kernel.org> · 2 Reviewed-by
• STALE86d 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

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.

• STALE190d [RFC PATCH v3 2/8] mm: constify oom_control, scan_control, and alloc_context nodemask
  2026-01-08 · Gregory Price <gourry@gourry.net>
• STALE190d [RFC PATCH v3 3/8] mm: restrict slub, compaction, and page_alloc to sysram
  2026-01-08 · Gregory Price <gourry@gourry.net>
• STALE187d [PATCH v7 1/5] mm/page_ext: Add page_ext_get_phys()
  2026-01-14 · Mostafa Saleh <smostafa@google.com>
• STALE65d [PATCH v2 08/25] mm/page_alloc: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE65d [PATCH v2 09/25] mm/show_mem: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE103d [PATCH RFC 01/13] mm/rmap: remove folio->_nr_pages_mapped
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE103d [PATCH RFC 08/13] mm: re-consolidate folio->_entire_mapcount
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE103d [PATCH RFC 10/13] mm: re-consolidate folio->_pincount
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• DORMANTno replies [PATCH RFC 13/13] mm/rmap: support arbitrary folio mappings
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE88d [RFC 5/7] mm/page_alloc: integrate page consistency hooks
  2026-04-24 · Sasha Levin <sashal@kernel.org>