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perf tools: Don't use code surrounded by __KERNEL__

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We need to refactor code to be explicitely shared by the kernel and at
least the tools/ userspace programs, so, till we do that, copy the bare
minimum bitmap/bitops code needed by tools/perf.

Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2010-04-30 19:31:12 -03:00
parent bc4b473f1a
commit fb72014d98
7 changed files with 105 additions and 47 deletions
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38
tools/perf/util/include/linux/bitmap.h
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@@ -1,3 +1,35 @@
#include "../../../../include/linux/bitmap.h"
#include "../../../../include/asm-generic/bitops/find.h"
#include <linux/errno.h>
#ifndef _PERF_BITOPS_H
#define _PERF_BITOPS_H
#include <string.h>
#include <linux/bitops.h>
int __bitmap_weight(const unsigned long *bitmap, int bits);
#define BITMAP_LAST_WORD_MASK(nbits) \
( \
((nbits) % BITS_PER_LONG) ? \
(1UL<<((nbits) % BITS_PER_LONG))-1 : ~0UL \
)
#define small_const_nbits(nbits) \
(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
static inline void bitmap_zero(unsigned long *dst, int nbits)
{
if (small_const_nbits(nbits))
*dst = 0UL;
else {
int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
memset(dst, 0, len);
}
}
static inline int bitmap_weight(const unsigned long *src, int nbits)
{
if (small_const_nbits(nbits))
return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));
return __bitmap_weight(src, nbits);
}
#endif /* _PERF_BITOPS_H */