290 	struct task_struct *t;  in thread_group_cputime()  local
304 		for_each_thread(tsk, t) {  in thread_group_cputime()
305 			task_cputime(t, &utime, &stime);  in thread_group_cputime()
308 			times->sum_exec_runtime += task_sched_runtime(t);  in thread_group_cputime()
755 void vtime_init_idle(struct task_struct *t, int cpu)  in vtime_init_idle()  argument
759 	write_seqlock_irqsave(&t->vtime_seqlock, flags);  in vtime_init_idle()
760 	t->vtime_snap_whence = VTIME_SYS;  in vtime_init_idle()
761 	t->vtime_snap = sched_clock_cpu(cpu);  in vtime_init_idle()
762 	write_sequnlock_irqrestore(&t->vtime_seqlock, flags);  in vtime_init_idle()
765 cputime_t task_gtime(struct task_struct *t)  in task_gtime()  argument
771 		seq = read_seqbegin(&t->vtime_seqlock);  in task_gtime()
773 		gtime = t->gtime;  in task_gtime()
774 		if (t->flags & PF_VCPU)  in task_gtime()
775 			gtime += vtime_delta(t);  in task_gtime()
777 	} while (read_seqretry(&t->vtime_seqlock, seq));  in task_gtime()
788 fetch_task_cputime(struct task_struct *t,  in fetch_task_cputime()  argument
800 		seq = read_seqbegin(&t->vtime_seqlock);  in fetch_task_cputime()
808 		if (t->vtime_snap_whence == VTIME_SLEEPING ||  in fetch_task_cputime()
809 		    is_idle_task(t))  in fetch_task_cputime()
812 		delta = vtime_delta(t);  in fetch_task_cputime()
818 		if (t->vtime_snap_whence == VTIME_USER || t->flags & PF_VCPU) {  in fetch_task_cputime()
821 			if (t->vtime_snap_whence == VTIME_SYS)  in fetch_task_cputime()
824 	} while (read_seqretry(&t->vtime_seqlock, seq));  in fetch_task_cputime()
828 void task_cputime(struct task_struct *t, cputime_t *utime, cputime_t *stime)  in task_cputime()  argument
832 	fetch_task_cputime(t, utime, stime, &t->utime,  in task_cputime()
833 			   &t->stime, &udelta, &sdelta);  in task_cputime()
840 void task_cputime_scaled(struct task_struct *t,  in task_cputime_scaled()  argument
845 	fetch_task_cputime(t, utimescaled, stimescaled,  in task_cputime_scaled()
846 			   &t->utimescaled, &t->stimescaled, &udelta, &sdelta);  in task_cputime_scaled()