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#ifndef _LINUX_CALC64_H

#define _LINUX_CALC64_H

#include <linux/types.h>

#include <asm/div64.h>

/*

 * This is a generic macro which is used when the architecture

 * specific div64.h does not provide a optimized one.

 *

 * The 64bit dividend is divided by the divisor (data type long), the

 * result is returned and the remainder stored in the variable

 * referenced by remainder (data type long *). In contrast to the

 * do_div macro the dividend is kept intact.

 */

#ifndef div_long_long_rem

#define div_long_long_rem(dividend, divisor, remainder) \

        do_div_llr((dividend), divisor, remainder)

static inline unsigned long do_div_llr(const long long dividend,

                                       const long divisor, long *remainder)

{

        u64 result = dividend;

        *(remainder) = do_div(result, divisor);

        return (unsigned long) result;

}

#endif

/*

 * Sign aware variation of the above. On some architectures a

 * negative dividend leads to an divide overflow exception, which

 * is avoided by the sign check.

 */

static inline long div_long_long_rem_signed(const long long dividend,

                                            const long divisor, long *remainder)

{

        long res;

        if (unlikely(dividend < 0)) {

                res = -div_long_long_rem(-dividend, divisor, remainder);

                *remainder = -(*remainder);

        } else

                res = div_long_long_rem(dividend, divisor, remainder);

        return res;

}

#endif