root/include/asm-generic/page.h

INCLUDED FROM

DEFINITIONS

1. get_order

#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 */