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[PATCH 09/17] tools lib: Add bitmap_alloc function

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From: Jiri Olsa <jolsa@redhat.com>

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: Arnaldo Carvalho de Melo <acme@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 28f5493da491..60c44b615902 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 */
-- 
2.7.4

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[GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 09/17] tools lib: Add bitmap_alloc function Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 16/17] perf tests: objdump output can contain multi byte chunks Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 12/17] perf tests: Add test for bitmap_scnprintf function Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 01/17] perf evsel: Introduce constructor for cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 04/17] perf annotate: Rename symbol__annotate() to symbol__disassemble() Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 10/17] tools lib: Add bitmap_scnprintf function Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 03/17] perf target: str_error_r() always returns the buffer it receives Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  [PATCH 05/17] perf annotate: Introduce strerror for handling symbol__disassemble() errors Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-04 03:00 +0200
  Re: [GIT PULL 00/17] perf/core improvements and fixes Ingo Molnar <mingo@kernel.org> - 2016-08-04 11:30 +0200

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