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bitmap: refine and move BITMAP_{FIRST/LAST}_WORD_MASK

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According to linux kernel commit <89c1e79eb30> ("linux/bitmap.h: improve
BITMAP_{LAST,FIRST}_WORD_MASK"), these two macro could be improved.

This patch takes this change and also move them all in header file.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Wei Yang
2016-03-05 13:47:08 +00:00
committed by Michael Tokarev
parent 88071589e8
commit cb57fb3705
2 changed files with 2 additions and 7 deletions
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2
util/bitmap.c
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@@ -157,8 +157,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
return result != 0;
}
#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG))
void bitmap_set(unsigned long *map, long start, long nr)
{
unsigned long *p = map + BIT_WORD(start);