File: page.h

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linux-2.6 2.6.26-29
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#ifndef _ASM_GENERIC_PAGE_H
#define _ASM_GENERIC_PAGE_H

#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	/* _ASM_GENERIC_PAGE_H */