9979 	READ_ONCE(event->overflow_handler)(event, data, regs);  in __perf_event_overflow()
12256 		 perf_overflow_handler_t overflow_handler,  in perf_event_alloc()  argument
12339 	if (!overflow_handler && parent_event) {  in perf_event_alloc()
12340 		overflow_handler = parent_event->overflow_handler;  in perf_event_alloc()
12352 	if (overflow_handler) {  in perf_event_alloc()
12353 		event->overflow_handler	= overflow_handler;  in perf_event_alloc()
12356 		event->overflow_handler = perf_event_output_backward;  in perf_event_alloc()
12359 		event->overflow_handler = perf_event_output_forward;  in perf_event_alloc()
13184 				 perf_overflow_handler_t overflow_handler,  in perf_event_create_kernel_counter()  argument
13201 				 overflow_handler, context, -1);  in perf_event_create_kernel_counter()
13749 	child_event->overflow_handler = parent_event->overflow_handler;  in inherit_event()