Commit-ID: 98c032967a299ee4bf14ef19eded02b65df32e6f Gitweb: http://git.kernel.org/tip/98c032967a299ee4bf14ef19eded02b65df32e6f Author: Jiri Olsa <jo...@redhat.com> AuthorDate: Tue, 2 Aug 2016 13:33:02 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Tue, 2 Aug 2016 16:33:26 -0300
tools lib: Add bitmap_alloc function Adding bitmap_alloc function to dynamically allocate bitmap. Signed-off-by: Jiri Olsa <jo...@kernel.org> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Link: http://lkml.kernel.org/r/20160802113302.GA7479@krava Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/include/linux/bitmap.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index 28f5493..60c44b6 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -3,6 +3,7 @@ #include <string.h> #include <linux/bitops.h> +#include <stdlib.h> #define DECLARE_BITMAP(name,bits) \ unsigned long name[BITS_TO_LONGS(bits)] @@ -65,4 +66,13 @@ static inline int test_and_set_bit(int nr, unsigned long *addr) return (old & mask) != 0; } +/** + * bitmap_alloc - Allocate bitmap + * @nr: Bit to set + */ +static inline unsigned long *bitmap_alloc(int nbits) +{ + return calloc(1, BITS_TO_LONGS(nbits) * sizeof(unsigned long)); +} + #endif /* _PERF_BITOPS_H */
