ttime_total      5198 block/bfq-iosched.c 	ttime->ttime_total = div_u64(7*ttime->ttime_total + 256*elapsed,  8);
ttime_total      5199 block/bfq-iosched.c 	ttime->ttime_mean = div64_ul(ttime->ttime_total + 128,
ttime_total       210 block/bfq-iosched.h 	u64 ttime_total;