Em Tue, Aug 02, 2016 at 01:33:02PM +0200, Jiri Olsa escreveu: > --- > Adding bitmap_alloc function to dynamically allocate bitmap.
Why should we deviate from the kernel way of doing things, where, AFAIK, there is no such bitmap_alloc() function? [acme@jouet linux]$ find . -type f | xargs grep -w bitmap_alloc [acme@jouet linux]$ - Arnaldo > Link: http://lkml.kernel.org/n/[email protected] > Signed-off-by: Jiri Olsa <[email protected]> > --- > 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 */ > -- > 2.4.11
