[deliverable/linux.git] / include / asm-generic / page.h

#ifndef _ASM_GENERIC_PAGE_H
#define _ASM_GENERIC_PAGE_H

#ifdef __KERNEL__
#ifndef __ASSEMBLY__

#include <linux/compiler.h>

/* Pure 2^n version of get_order */
static __inline__ __attribute_const__ int get_order(unsigned long size)
{
	int order;

	size = (size - 1) >> (PAGE_SHIFT - 1);
	order = -1;
	do {
		size >>= 1;
		order++;
	} while (size);
	return order;
}

#endif	/* __ASSEMBLY__ */
#endif	/* __KERNEL__ */

#endif	/* _ASM_GENERIC_PAGE_H */
Commit	Line	Data
fd4fd5aa SR	1	#ifndef _ASM_GENERIC_PAGE_H
	2	#define _ASM_GENERIC_PAGE_H
	3
	4	#ifdef __KERNEL__
	5	#ifndef __ASSEMBLY__
	6
	7	#include <linux/compiler.h>
	8
	9	/* Pure 2^n version of get_order */
	10	static __inline__ __attribute_const__ int get_order(unsigned long size)
	11	{
	12	int order;
	13
	14	size = (size - 1) >> (PAGE_SHIFT - 1);
	15	order = -1;
	16	do {
	17	size >>= 1;
	18	order++;
	19	} while (size);
	20	return order;
	21	}
	22
	23	#endif /* __ASSEMBLY__ */
	24	#endif /* __KERNEL__ */
	25
	26	#endif /* _ASM_GENERIC_PAGE_H */