graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)
{
	atomic_set(&t->tracing_graph_pause, 0);
	atomic_set(&t->trace_overrun, 0);
	t->ftrace_timestamp = 0;
	/* make curr_ret_stack visible before we add the ret_stack */
	smp_wmb();
	t->ret_stack = ret_stack;
}

Unknown