1#include <linux/kernel.h>
 2#include <linux/gcd.h>
 3#include <linux/module.h>
 4#include <linux/lcm.h>
 5
 6/* Lowest common multiple */
 7unsigned long lcm(unsigned long a, unsigned long b)
 8{
 9	if (a && b)
10		return (a * b) / gcd(a, b);
11	else if (b)
12		return b;
13
14	return a;
15}
16EXPORT_SYMBOL_GPL(lcm);