ktime_get_snapshot  104 include/linux/pps_kernel.h 	ktime_get_snapshot(&snap);
ktime_get_snapshot  281 include/linux/timekeeping.h extern void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot);
ktime_get_snapshot  995 kernel/time/timekeeping.c EXPORT_SYMBOL_GPL(ktime_get_snapshot);