On Thu, Apr 25, 2019 at 11:28:31AM +0800, Wei Yang wrote:
>The value left in nr is the number of bits for the last word, which
>could be calculate the last word mask directly.
>
>Remove the unnecessary size.
Ping...
>
>Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
>---
> util/bitmap.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
>diff --git a/util/bitmap.c b/util/bitmap.c
>index cb618c65a5..5aa60b8717 100644
>--- a/util/bitmap.c
>+++ b/util/bitmap.c
>@@ -160,7 +160,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
> void bitmap_set(unsigned long *map, long start, long nr)
> {
> unsigned long *p = map + BIT_WORD(start);
>- const long size = start + nr;
> int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
> unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>
>@@ -174,7 +173,7 @@ void bitmap_set(unsigned long *map, long start, long nr)
> p++;
> }
> if (nr) {
>- mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>+ mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
> *p |= mask_to_set;
> }
> }
>@@ -221,7 +220,6 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
> void bitmap_clear(unsigned long *map, long start, long nr)
> {
> unsigned long *p = map + BIT_WORD(start);
>- const long size = start + nr;
> int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
> unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
>
>@@ -235,7 +233,7 @@ void bitmap_clear(unsigned long *map, long start, long nr)
> p++;
> }
> if (nr) {
>- mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
>+ mask_to_clear &= BITMAP_LAST_WORD_MASK(nr);
> *p &= ~mask_to_clear;
> }
> }
>--
>2.19.1
--
Wei Yang
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