bitmap api · Maintained

Maintainers

• M Yury Norov <yury.norov@gmail.com>
• R Rasmus Villemoes <linux@rasmusvillemoes.dk>

Paths

• F include/linux/bitfield.h
• F include/linux/bitmap-str.h
• F include/linux/bitmap.h
• F include/linux/bits.h
• F include/linux/cpumask.h
• F include/linux/cpumask_types.h
• F include/linux/find.h
• F include/linux/hw_bitfield.h
• F include/linux/nodemask.h
• F include/linux/nodemask_types.h
• F include/uapi/linux/bits.h
• F include/vdso/bits.h
• F lib/bitmap-str.c
• F lib/bitmap.c
• F lib/cpumask.c
• F lib/find_bit.c
• F lib/find_bit_benchmark.c
• F lib/region_alloc_benchmark.c
• F lib/test_bitmap.c
• F lib/tests/cpumask_kunit.c
• F tools/include/linux/bitfield.h
• F tools/include/linux/bitmap.h
• F tools/include/linux/bits.h
• F tools/include/linux/find.h
• F tools/include/uapi/linux/bits.h
• F tools/include/vdso/bits.h
• F tools/lib/bitmap.c
• F tools/lib/find_bit.c

Last 30 days

Recent patches

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

• COLD26d IN MM [PATCH] lib: fix lock initialization in region allocation benchmark
  2026-09-11 · Yury Norov <yury.norov@gmail.com>
• COLD31d [PATCH v6 05/12] bitmap: Add bitmap_allocate() function
  2026-09-04 · Thierry Reding <thierry.reding@kernel.org>
• COLD47d SUPERSEDED [PATCH v5 04/10] bitmap: Add bitmap_allocate() function
  2026-08-14 · Thierry Reding <thierry.reding@kernel.org>
• COLD48d SUPERSEDED [PATCH v4 04/10] bitmap: Add bitmap_allocate() function
  2026-08-07 · Thierry Reding <thierry.reding@kernel.org>
• COLD16d [PATCH v5 04/36] numa: introduce N_MEMORY_PRIVATE
  2026-07-20 · Gregory Price <gourry@gourry.net>
• STALE75d [PATCH v3] lib: test bitmap vs IDA vs Maple Tree performance for region allocations
  2026-07-17 · Yury Norov <hidden>
• STALE76d [PATCH v2] nodemask: reduce bitmap width to nr_node_ids in __nodemask_pr_numnodes()
  2026-07-13 · lirongqing <hidden>
• STALE91d [PATCH] nodemask: use nr_node_ids instead of MAX_NUMNODES in __nodemask_pr_numnodes()
  2026-07-09 · lirongqing <hidden>
• STALE102d [PATCH 4/4] mm/page_alloc: initialize node_possible_map like the other node maps
  2026-07-01 · Sang-Heon Jeon <hidden>
• STALE62d SUPERSEDED [PATCH v3 05/11] bitmap: Add bitmap_allocate() function
  2026-07-01 · Thierry Reding <thierry.reding@kernel.org>
• STALE132d LANDED [PATCH] mm/nodemask: Correctly describe nodemask operation return types
  2026-05-29 · Joshua Hahn <joshua.hahnjy@gmail.com>
• STALE146d [PATCH 3/3] lib/bitmap: use bytes_to_page_end() helper
  2026-05-17 · Thorsten Blum <hidden>
• STALE198d [PATCH v4 22/25] tools: bitmap: add missing bitmap_copy() implementation
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE198d REVIEWED: 9 (9M) [PATCH v4 01/25] mm/vma: add vma_flags_empty(), vma_flags_and(), vma_flags_diff_pair()
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE205d SUPERSEDED: 9 (9M) [PATCH v3 01/23] mm/vma: add vma_flags_empty(), vma_flags_and(), vma_flags_diff_pair()
  2026-03-18 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE206d SUPERSEDED [PATCH v2 01/23] mm/vma: add vma_flags_empty(), vma_flags_and(), vma_flags_diff_pair()
  2026-03-16 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE213d SUPERSEDED [PATCH 01/20] mm/vma: add vma_flags_empty(), vma_flags_and(), vma_flags_diff_pair()
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE192d [PATCH 4/8] core: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE111d [RFC PATCH v4 01/27] numa: introduce N_MEMORY_PRIVATE node state
  2026-02-22 · Gregory Price <gourry@gourry.net>
• STALE158d [PATCH v2 03/10] bitmap: Add bitmap_allocate() function
  2026-01-22 · Thierry Reding <thierry.reding@kernel.org>
• STALE243d [PATCH v2 04/13] tools: bitmap: add missing bitmap_[subset(), andnot()]
  2026-01-22 · Lorenzo Stoakes <hidden>
• STALE262d SUPERSEDED [PATCH RESEND 03/12] tools: bitmap: add missing bitmap_[subset(), andnot()]
  2026-01-19 · Lorenzo Stoakes <hidden>
• STALE265d SUPERSEDED [PATCH 03/12] tools: bitmap: add missing bitmap_[subset(), andnot()]
  2026-01-19 · Lorenzo Stoakes <hidden>
• STALE268d [PATCH 1/3] nodemask: propagate boolean for nodes_and{,not}
  2026-01-14 · Yury Norov <hidden>
• STALE269d [RFC PATCH v3 1/8] numa,memory_hotplug: create N_PRIVATE (Private Nodes)
  2026-01-08 · Gregory Price <gourry@gourry.net>
• STALE580d [Patch v2 4/7] lib/interval_tree: add test case for interval_tree_iter_xxx() helpers
  2025-03-10 · Wei Yang <hidden>
• STALE584d [PATCH 4/7] lib/interval_tree: add test case for interval_tree_iter_xxx() helpers
  2025-03-04 · Wei Yang <hidden>
• STALE592d [PATCH RFC 3/4] mm/page_alloc_test: Add logic to isolate a node for testing
  2025-02-24 · Brendan Jackman <hidden>
• STALE639d [PATCH 1/3] mm/memblock: Modify the default failure behavior of memblock_alloc to panic
  2025-01-03 · Guo Weikang <hidden>
• STALE639d REVIEWED: 11 (11M) [PATCH v8] mm/memblock: Add memblock_alloc_or_panic interface
  2025-01-02 · Guo Weikang <hidden>

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.

• STALE198d [PATCH v4 22/25] tools: bitmap: add missing bitmap_copy() implementation
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE62d SUPERSEDED [PATCH v3 05/11] bitmap: Add bitmap_allocate() function
  2026-07-01 · Thierry Reding <thierry.reding@kernel.org>
• STALE102d [PATCH 4/4] mm/page_alloc: initialize node_possible_map like the other node maps
  2026-07-01 · Sang-Heon Jeon <hidden>