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/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] bitmap: Properly initialise destination bitmap for scatter & gather test
  2026-07-09 11:40 · 0 replies in 7d · "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
• HOTtoday [PATCH 0/5] bitmap: align bitmap_find_next_zero_area_off() output with the rest of the API
  2026-07-09 02:03 · 1 reply in 7d · Yury Norov <hidden>
• WARM1d test_bitmap fails on ppc/ppc64 on kernels v7.1.3, v7.2-rc2
  2026-07-08 07:51 · 1 reply in 7d · Erhard Furtner <hidden>

Active reviewers (last 30 days)

• Erhard Furtner <hidden>
  1 attestation (1 Reported-by) · last on 2026-07-09

Recent patches

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

• HOTtoday [PATCH] bitmap: Properly initialise destination bitmap for scatter & gather test
  2026-07-09 · "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
• HOTtoday [PATCH 5/5] bitmap: Return size when no zero area is found
  2026-07-09 · Yury Norov <hidden>
• WARM1d Re: test_bitmap fails on ppc/ppc64 on kernels v7.1.3, v7.2-rc2
  2026-07-08 · "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
• WARM2d [PATCH v2 11/11] lib/bitmap-str: get rid of cpumap_print_to_pagebuf()
  2026-07-02 · Yury Norov <hidden>
• COOLING12d [PATCH 16/16] lib/bitmap-str: get rid of cpumap_print_to_pagebuf()
  2026-05-28 · Yury Norov <hidden>
• STALE104d [PATCH v4 22/25] tools: bitmap: add missing bitmap_copy() implementation
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE104d 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>
• STALE111d REVIEWED: 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>
• STALE112d [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>
• STALE119d [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>
• STALE97d [PATCH 4/8] core: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE128d [PATCH 12/12] bitmap: drop bitmap_print_to_pagebuf()
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 11/12] cpumask: switch cpumap_print_to_pagebuf() to using scnprintf()
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 07/12] mm: add rest_of_page() macro
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 06/12] bitmap: align test_bitmap output
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 05/12] bitmap: switch test to scnprintf("%*pbl")
  2026-02-19 · Yury Norov <hidden>
• STALE198d [PATCH v2 1/3] test_bitmap: extract benchmark module
  2025-12-22 · Tamir Duberstein <tamird@kernel.org>
• STALE105d [PATCH 02/17] cpumask: Introduce cpu_paravirt_mask
  2025-11-19 · Shrikanth Hegde <hidden>
• STALE232d [RFC PATCH v4 02/17] cpumask: Introduce cpu_paravirt_mask
  2025-11-19 · Shrikanth Hegde <hidden>
• STALE241d [RFC PATCH v3 02/10] cpumask: Introduce cpu_paravirt_mask
  2025-09-10 · Shrikanth Hegde <hidden>
• STALE331d [RFC v2 2/9] cpumask: Introduce cpu_avoid_mask
  2025-06-25 · Shrikanth Hegde <hidden>
• STALE475d [PATCH 1/3] bitmap: remove _check_eq_u32_array
  2025-02-07 · Tamir Duberstein <hidden>
• STALE499d [PATCH v2 06/13] cpumask: re-introduce cpumask_next{,_and}_wrap()
  2025-01-28 · Yury Norov <yury.norov@gmail.com>
• STALE499d [PATCH v2 05/13] cpumask: deprecate cpumask_next_wrap()
  2025-01-28 · Yury Norov <yury.norov@gmail.com>
• STALE540d [PATCH 06/14] cpumask: re-introduce cpumask_next{,_and}_wrap()
  2024-12-28 · Yury Norov <yury.norov@gmail.com>
• STALE540d [PATCH 05/14] cpumask: deprecate cpumask_next_wrap()
  2024-12-28 · Yury Norov <yury.norov@gmail.com>
• STALE546d REVIEWED: 45 (45M) [PATCH v7] mm/memblock: Add memblock_alloc_or_panic interface
  2024-12-22 · Guo Weikang <hidden>
• STALE564d [PATCH v6] mm/memblock: Add memblock_alloc_or_panic interface
  2024-12-22 · Guo Weikang <hidden>
• STALE564d [PATCH v5] mm/memblock: Add memblock_alloc_or_panic interface
  2024-12-22 · Guo Weikang <hidden>
• STALE564d [PATCH v4] mm/memblock: Add memblock_alloc_or_panic interface
  2024-12-22 · 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 v2 1/3] test_bitmap: extract benchmark module
  2025-12-22 · Tamir Duberstein <tamird@kernel.org>
• STALE128d [PATCH 05/12] bitmap: switch test to scnprintf("%*pbl")
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 06/12] bitmap: align test_bitmap output
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 07/12] mm: add rest_of_page() macro
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 11/12] cpumask: switch cpumap_print_to_pagebuf() to using scnprintf()
  2026-02-19 · Yury Norov <hidden>
• STALE128d [PATCH 12/12] bitmap: drop bitmap_print_to_pagebuf()
  2026-02-19 · Yury Norov <hidden>
• STALE97d [PATCH 4/8] core: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE119d [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>
• STALE104d [PATCH v4 22/25] tools: bitmap: add missing bitmap_copy() implementation
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• COOLING12d [PATCH 16/16] lib/bitmap-str: get rid of cpumap_print_to_pagebuf()
  2026-05-28 · Yury Norov <hidden>