ktime_divns 367 include/linux/hrtimer.h extern u64 ktime_divns(const ktime_t kt, s64 div); ktime_divns 809 kernel/hrtimer.c orun = ktime_divns(delta, incr); ktime_divns 73 kernel/time/tick-sched.c ticks = ktime_divns(delta, incr);