tools lib: Add bitmap_alloc function (98c03296) · Commits · e / devices / android_kernel_fairphone_FP3

Adding bitmap_alloc function to dynamically allocate bitmap. Signed-off-by:

Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20160802113302.GA7479@krava Signed-off-by:

tools/include/linux/bitmap.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -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 */