vtime_guest_enter  107 include/linux/context_tracking.h 		vtime_guest_enter(current);
vtime_guest_enter   73 include/linux/vtime.h extern void vtime_guest_enter(struct task_struct *tsk);
vtime_guest_enter  789 kernel/sched/cputime.c EXPORT_SYMBOL_GPL(vtime_guest_enter);