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

Most active threads (last 7 days)

• HOTtoday [PATCH v11 00/21] KVM: arm64: PMU: Use multiple host PMUs
  2026-09-20 11:16 · 1 reply in 7d · Akihiko Odaki <hidden>

Active reviewers (last 30 days)

• Fuad Tabba <fuad.tabba@linux.dev>
  2 attestations (2 Reviewed-by) · last on 2026-09-20

Recent patches

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

• HOTtoday REVIEWED: 1 (1M) [PATCH v11 12/21] tools headers: Use u* types for bitfield helpers
  2026-09-20 · Akihiko Odaki <hidden>
• COOLING7d REVIEWED: 1 (1M) [PATCH v10 11/20] tools headers: Use u* types for bitfield helpers
  2026-09-14 · Akihiko Odaki <hidden>
• HOTtoday [PATCH v5 04/36] numa: introduce N_MEMORY_PRIVATE
  2026-07-20 · Gregory Price <gourry@gourry.net>
• COLD54d [PATCH v9 07/16] tools headers: Use u* types for bitfield helpers
  2026-07-20 · Akihiko Odaki <hidden>
• COLD52d [PATCH v8 02/11] tools headers: Sync bitfield.h with the kernel
  2026-07-10 · Akihiko Odaki <hidden>
• STALE272d [PATCH v2 1/3] test_bitmap: extract benchmark module
  2025-12-22 · Tamir Duberstein <tamird@kernel.org>
• STALE572d [PATCH RFC 3/4] mm/page_alloc_test: Add logic to isolate a node for testing
  2025-02-24 · Brendan Jackman <hidden>
• STALE588d REVIEWED: 41 (38M) [PATCH v2 3/6] lib: Move KUnit tests into tests/ subdirectory
  2025-02-11 · Kees Cook <kees@kernel.org>
• STALE549d [PATCH 1/3] bitmap: remove _check_eq_u32_array
  2025-02-07 · Tamir Duberstein <hidden>
• STALE658d LANDED: 39 (38M) [PATCH v2 3/6] lib: Move KUnit tests into tests/ subdirectory
  2024-12-02 · David Gow <hidden>
• STALE590d REVIEWED: 39 (38M) [PATCH 3/6] lib: Move KUnit tests into tests/ subdirectory
  2024-10-11 · David Gow <hidden>
• STALE782d [PATCH 1/3] bitmap: convert test_bitmap to KUnit test
  2024-07-26 · Muhammad Usama Anjum <hidden>
• STALE711d [PATCH] lib: Move KUnit tests into tests/ subdirectory
  2024-07-20 · Kees Cook <kees@kernel.org>
• STALE760d [PATCH] tools: Copy linux/align.h into tools/
  2023-02-27 · Ackerley Tng <hidden>
• STALE1813d REVIEWED: 7 (7M) [PATCH 15/16] lib: bitmap: add performance test for bitmap_print_to_pagebuf
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 8 (8M) [PATCH 14/16] bitmap: unify find_bit operations
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 7 (7M) [PATCH 11/16] find: micro-optimize for_each_{set,clear}_bit()
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 7 (7M) [PATCH 10/16] include/linux: move for_each_bit() macros from bitops.h to find.h
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 7 (7M) [PATCH 09/16] cpumask: replace cpumask_next_* with cpumask_first_* where appropriate
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 7 (7M) [PATCH 08/16] tools: sync tools/bitmap with mother linux
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 7 (7M) [PATCH 06/16] cpumask: use find_first_and_bit()
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 8 (7M) [PATCH 05/16] lib: add find_first_and_bit()
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 26 (26M) [PATCH 04/16] arch: remove GENERIC_FIND_FIRST_BIT entirely
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1813d REVIEWED: 9 (9M) [PATCH 03/16] include: move find.h from asm_generic to linux
  2021-10-05 · Yury Norov <yury.norov@gmail.com>
• STALE1815d REVIEWED: 7 (7M) [PATCH 15/16] lib: bitmap: add performance test for bitmap_print_to_pagebuf
  2021-10-01 · Yury Norov <yury.norov@gmail.com>
• STALE1815d REVIEWED: 8 (8M) [PATCH 14/16] bitmap: unify find_bit operations
  2021-10-01 · Yury Norov <yury.norov@gmail.com>
• STALE1815d REVIEWED: 7 (7M) [PATCH 11/16] find: micro-optimize for_each_{set,clear}_bit()
  2021-10-01 · Yury Norov <yury.norov@gmail.com>
• STALE1815d REVIEWED: 7 (7M) [PATCH 10/16] include/linux: move for_each_bit() macros from bitops.h to find.h
  2021-10-01 · Yury Norov <yury.norov@gmail.com>
• STALE1815d REVIEWED: 7 (7M) [PATCH 09/16] cpumask: replace cpumask_next_* with cpumask_first_* where appropriate
  2021-10-01 · Yury Norov <yury.norov@gmail.com>
• STALE1815d REVIEWED: 7 (7M) [PATCH 08/16] tools: sync tools/bitmap with mother linux
  2021-10-01 · Yury Norov <yury.norov@gmail.com>

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.

• COLD52d [PATCH v8 02/11] tools headers: Sync bitfield.h with the kernel
  2026-07-10 · Akihiko Odaki <hidden>