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()
154 	if (unlikely(current->ret_stack[index].fp != frame_pointer)) {  in ftrace_pop_return_trace()
158 		     current->ret_stack[index].fp,  in ftrace_pop_return_trace()
160 		     (void *)current->ret_stack[index].func,  in ftrace_pop_return_trace()
161 		     current->ret_stack[index].ret);  in ftrace_pop_return_trace()
167 	*ret = current->ret_stack[index].ret;  in ftrace_pop_return_trace()
168 	trace->func = current->ret_stack[index].func;  in ftrace_pop_return_trace()
169 	trace->calltime = current->ret_stack[index].calltime;  in ftrace_pop_return_trace()
252 		return &task->ret_stack[idx];  in ftrace_graph_get_ret_stack()
286 		if (task->ret_stack[i].retp == retp)  in ftrace_graph_ret_addr()
287 			return task->ret_stack[i].ret;  in ftrace_graph_ret_addr()
302 	if (!task->ret_stack || task_idx < *idx)  in ftrace_graph_ret_addr()
308 	return task->ret_stack[task_idx].ret;  in ftrace_graph_ret_addr()
369 		if (t->ret_stack == NULL) {  in alloc_retstack_tasklist()
376 			t->ret_stack = ret_stack_list[start++];  in alloc_retstack_tasklist()
417 		next->ret_stack[index].calltime += timestamp;  in ftrace_graph_probe_sched_switch()
463 graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)  in graph_init_task()  argument
470 	t->ret_stack = ret_stack;  in graph_init_task()
485 	if (t->ret_stack)  in ftrace_graph_init_idle_task()
486 		WARN_ON(t->ret_stack != per_cpu(idle_ret_stack, cpu));  in ftrace_graph_init_idle_task()
489 		struct ftrace_ret_stack *ret_stack;  in ftrace_graph_init_idle_task()  local
491 		ret_stack = per_cpu(idle_ret_stack, cpu);  in ftrace_graph_init_idle_task()
492 		if (!ret_stack) {  in ftrace_graph_init_idle_task()
493 			ret_stack =  in ftrace_graph_init_idle_task()
497 			if (!ret_stack)  in ftrace_graph_init_idle_task()
499 			per_cpu(idle_ret_stack, cpu) = ret_stack;  in ftrace_graph_init_idle_task()
501 		graph_init_task(t, ret_stack);  in ftrace_graph_init_idle_task()
509 	t->ret_stack = NULL;  in ftrace_graph_init_task()
514 		struct ftrace_ret_stack *ret_stack;  in ftrace_graph_init_task()  local
516 		ret_stack = kmalloc_array(FTRACE_RETFUNC_DEPTH,  in ftrace_graph_init_task()
519 		if (!ret_stack)  in ftrace_graph_init_task()
521 		graph_init_task(t, ret_stack);  in ftrace_graph_init_task()
527 	struct ftrace_ret_stack	*ret_stack = t->ret_stack;  in ftrace_graph_exit_task()  local
529 	t->ret_stack = NULL;  in ftrace_graph_exit_task()
533 	kfree(ret_stack);  in ftrace_graph_exit_task()
551 		if (!idle_task(cpu)->ret_stack)  in start_graph_tracing()