include/asm-generic/bitops/fls64.h

#ifndef _ASM_GENERIC_BITOPS_FLS64_H_
#define _ASM_GENERIC_BITOPS_FLS64_H_

#include <asm/types.h>

static inline int fls64(__u64 x)
{
	__u32 h = x >> 32;
	if (h)
		return fls(h) + 32;
	return fls(x);
}

#endif /* _ASM_GENERIC_BITOPS_FLS64_H_ */
[PATCH] bitops: generic fls64() This patch introduces the C-language equivalent of the function: int fls64(__u64 x); In include/asm-generic/bitops/fls64.h This code largely copied from: include/linux/bitops.h Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-03-26 01:39:10 -08:00			`#ifndef _ASM_GENERIC_BITOPS_FLS64_H_`
			`#define _ASM_GENERIC_BITOPS_FLS64_H_`

[PATCH] fix error: __u32 undeclared Build fix for s390 declare __u32 and __u64. Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-03-26 01:39:14 -08:00			`#include <asm/types.h>`

[PATCH] bitops: generic fls64() This patch introduces the C-language equivalent of the function: int fls64(__u64 x); In include/asm-generic/bitops/fls64.h This code largely copied from: include/linux/bitops.h Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-03-26 01:39:10 -08:00			`static inline int fls64(__u64 x)`
			`{`
			`__u32 h = x >> 32;`
			`if (h)`
			`return fls(h) + 32;`
			`return fls(x);`
			`}`

			`#endif /* _ASM_GENERIC_BITOPS_FLS64_H_ */`