129 	if (!current->ret_stack)  in ftrace_push_return_trace()
139 	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {  in ftrace_push_return_trace()
140 		atomic_inc(&current->trace_overrun);  in ftrace_push_return_trace()
160 	if (current->curr_ret_stack < -1)  in ftrace_push_return_trace()
165 	index = ++current->curr_ret_stack;  in ftrace_push_return_trace()
167 		current->curr_ret_stack -= FTRACE_NOTRACE_DEPTH;  in ftrace_push_return_trace()
169 	current->ret_stack[index].ret = ret;  in ftrace_push_return_trace()
170 	current->ret_stack[index].func = func;  in ftrace_push_return_trace()
171 	current->ret_stack[index].calltime = calltime;  in ftrace_push_return_trace()
172 	current->ret_stack[index].subtime = 0;  in ftrace_push_return_trace()
173 	current->ret_stack[index].fp = frame_pointer;  in ftrace_push_return_trace()
174 	*depth = current->curr_ret_stack;  in ftrace_push_return_trace()
186 	index = current->curr_ret_stack;  in ftrace_pop_return_trace()
221 	if (unlikely(current->ret_stack[index].fp != frame_pointer)) {  in ftrace_pop_return_trace()
225 		     current->ret_stack[index].fp,  in ftrace_pop_return_trace()
227 		     (void *)current->ret_stack[index].func,  in ftrace_pop_return_trace()
228 		     current->ret_stack[index].ret);  in ftrace_pop_return_trace()
234 	*ret = current->ret_stack[index].ret;  in ftrace_pop_return_trace()
235 	trace->func = current->ret_stack[index].func;  in ftrace_pop_return_trace()
236 	trace->calltime = current->ret_stack[index].calltime;  in ftrace_pop_return_trace()
237 	trace->overrun = atomic_read(&current->trace_overrun);  in ftrace_pop_return_trace()
253 	current->curr_ret_stack--;  in ftrace_return_to_handler()
259 	if (current->curr_ret_stack < -1) {  in ftrace_return_to_handler()
260 		current->curr_ret_stack += FTRACE_NOTRACE_DEPTH;  in ftrace_return_to_handler()
321 	if (!ftrace_trace_task(current))  in trace_graph_entry()