68 	if (!current->ret_stack)  in ftrace_push_return_trace()
87 	current->ret_stack[index].ret = ret;  in ftrace_push_return_trace()
88 	current->ret_stack[index].func = func;  in ftrace_push_return_trace()
89 	current->ret_stack[index].calltime = calltime;  in ftrace_push_return_trace()
91 	current->ret_stack[index].fp = frame_pointer;  in ftrace_push_return_trace()
94 	current->ret_stack[index].retp = retp;  in ftrace_push_return_trace()
177 	if (unlikely(current->ret_stack[index].fp != frame_pointer)) {  in ftrace_pop_return_trace()
181 		     current->ret_stack[index].fp,  in ftrace_pop_return_trace()
183 		     (void *)current->ret_stack[index].func,  in ftrace_pop_return_trace()
184 		     current->ret_stack[index].ret);  in ftrace_pop_return_trace()
190 	*ret = current->ret_stack[index].ret;  in ftrace_pop_return_trace()
191 	trace->func = current->ret_stack[index].func;  in ftrace_pop_return_trace()
192 	trace->calltime = current->ret_stack[index].calltime;  in ftrace_pop_return_trace()
275 		return &task->ret_stack[idx];  in ftrace_graph_get_ret_stack()
309 		if (task->ret_stack[i].retp == retp)  in ftrace_graph_ret_addr()
310 			return task->ret_stack[i].ret;  in ftrace_graph_ret_addr()
325 	if (!task->ret_stack || task_idx < *idx)  in ftrace_graph_ret_addr()
331 	return task->ret_stack[task_idx].ret;  in ftrace_graph_ret_addr()
396 		if (t->ret_stack == NULL) {  in alloc_retstack_tasklist()
402 			t->ret_stack = ret_stack_list[start++];  in alloc_retstack_tasklist()
443 		next->ret_stack[index].calltime += timestamp;  in ftrace_graph_probe_sched_switch()
489 graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)  in graph_init_task()  argument
495 	t->ret_stack = ret_stack;  in graph_init_task()
510 	if (t->ret_stack)  in ftrace_graph_init_idle_task()
511 		WARN_ON(t->ret_stack != per_cpu(idle_ret_stack, cpu));  in ftrace_graph_init_idle_task()
514 		struct ftrace_ret_stack *ret_stack;  in ftrace_graph_init_idle_task()  local
516 		ret_stack = per_cpu(idle_ret_stack, cpu);  in ftrace_graph_init_idle_task()
517 		if (!ret_stack) {  in ftrace_graph_init_idle_task()
518 			ret_stack =  in ftrace_graph_init_idle_task()
522 			if (!ret_stack)  in ftrace_graph_init_idle_task()
524 			per_cpu(idle_ret_stack, cpu) = ret_stack;  in ftrace_graph_init_idle_task()
526 		graph_init_task(t, ret_stack);  in ftrace_graph_init_idle_task()
534 	t->ret_stack = NULL;  in ftrace_graph_init_task()
539 		struct ftrace_ret_stack *ret_stack;  in ftrace_graph_init_task()  local
541 		ret_stack = kmalloc_array(FTRACE_RETFUNC_DEPTH,  in ftrace_graph_init_task()
544 		if (!ret_stack)  in ftrace_graph_init_task()
546 		graph_init_task(t, ret_stack);  in ftrace_graph_init_task()
552 	struct ftrace_ret_stack	*ret_stack = t->ret_stack;  in ftrace_graph_exit_task()  local
554 	t->ret_stack = NULL;  in ftrace_graph_exit_task()
558 	kfree(ret_stack);  in ftrace_graph_exit_task()
576 		if (!idle_task(cpu)->ret_stack)  in start_graph_tracing()