[PATCH 0/3] Improve bitmap_empty and bitmap_full

Jia He
2015-11-19T02:32:11Z

find_fisrt_{zero_}bit are too heavy for bitmap_{full,empty}. We don't
need to calculate and compare the position of bitmap. This set of patch
instroduces lightweight api and replaces the heavy one.

Jia He (3):
linux/bitmap: Move 2 mask macro from bitmap.h to bitops.h
lib: Introduce 2 find bit api: all_is_bit_{one,zero}
linux/bitmap: Replace find_fisrt_{zero_}bit with the new lightweight api

include/asm-generic/bitops/find.h | 3 +++
include/linux/bitmap.h | 7 ++----
include/linux/bitops.h | 4 ++++
lib/find_bit.c | 50 +++++++++++++++++++++++++++++++++++++++
4 files changed, 59 insertions(+), 5 deletions(-)

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2.5.0