return (j * 1000) / HZ; 
return (j * MSEC_PER_SEC) / HZ; 
static inline unsigned int jiffies_to_msecs(const unsigned long j){#if HZ <= 1000 && !(1000 % HZ)	return (1000 / HZ) * j;#elif HZ > 1000 && !(HZ % 1000)	return (j + (HZ / 1000) - 1)/(HZ / 1000);#else	return (j * 1000) / HZ;#endif}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/84f902c0903a98a315b45a4fba3d2ac0de388256/jiffies.h/clean/include/linux/jiffies.h