[PATCH v2 0/3] Improve bitmap_empty and bitmap_full
From: Jia He
Date: Thu Nov 19 2015 - 01:49:30 EST
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.
v2: Move the declarations to linux/bitops.h for compilation
Jia He (3):
Move 2 mask macro from bitmap.h to bitops.h
Introduce 2 bit ops api: all_is_bit_{one,zero}
Replace find_fisrt_{zero_}bit with the new lightweight api
include/linux/bitmap.h | 7 ++-----
include/linux/bitops.h | 7 +++++++
lib/find_bit.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 59 insertions(+), 5 deletions(-)
--
2.5.0
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