[v4] bitmap: cleanup bitmap_*_region() implementation

[PATCH v4 0/8] bitmap: cleanup bitmap_*_region() implementation

Yury Norov posted 8 patches 2 years, 5 months ago

Diff against v1 v2 v2 v3 v5
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There is a newer version of this series

include/linux/bitmap.h |  63 ++++++++++++++++++-
lib/bitmap.c           | 140 -----------------------------------------
lib/test_bitmap.c      |  24 +++++++
3 files changed, 84 insertions(+), 143 deletions(-)

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[PATCH v4 0/8] bitmap: cleanup bitmap_*_region() implementation

Posted by Yury Norov 2 years, 5 months ago

bitmap_{allocate,find_free,release}_region() functions are implemented
on top of _reg_op() machinery. It duplicates existing generic functionality
with no benefits. In fact, generic alternatives may work even better
because they optimized for small_const_nbits() case and overall very well
optimized for performance and code generation.

This series drops _reg_op() entirely.

v2: https://lore.kernel.org/lkml/20230811005732.107718-2-yury.norov@gmail.com/T/
v3: https://lore.kernel.org/lkml/20230815233628.45016-2-yury.norov@gmail.com/T/
v4: address nits for v3.

Yury Norov (8):
  bitmap: align __reg_op() wrappers with modern coding style
  bitmap: add test for bitmap_*_regoon() functions
  bitmap: fix opencoded bitmap_allocate_region()
  bitmap: replace _reg_op(REG_OP_ALLOC) with bitmap_set()
  bitmap: replace _reg_op(REG_OP_RELEASE) with bitmap_clear()
  bitmap: replace _reg_op(REG_OP_ISFREE) with find_next_bit()
  bitmap: drop _reg_op() function
  bitmap: move bitmap_*_region functions to bitmap.h

 include/linux/bitmap.h |  63 ++++++++++++++++++-
 lib/bitmap.c           | 140 -----------------------------------------
 lib/test_bitmap.c      |  24 +++++++
 3 files changed, 84 insertions(+), 143 deletions(-)

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2.39.2