9565 	READ_ONCE(event->overflow_handler)(event, data, regs);  in __perf_event_overflow()
10437 	event->orig_overflow_handler = READ_ONCE(event->overflow_handler);  in perf_event_set_bpf_handler()
10438 	WRITE_ONCE(event->overflow_handler, bpf_overflow_handler);  in perf_event_set_bpf_handler()
10449 	WRITE_ONCE(event->overflow_handler, event->orig_overflow_handler);  in perf_event_free_bpf_handler()
11823 		 perf_overflow_handler_t overflow_handler,  in perf_event_alloc()  argument
11905 	if (!overflow_handler && parent_event) {  in perf_event_alloc()
11906 		overflow_handler = parent_event->overflow_handler;  in perf_event_alloc()
11909 		if (overflow_handler == bpf_overflow_handler) {  in perf_event_alloc()
11920 	if (overflow_handler) {  in perf_event_alloc()
11921 		event->overflow_handler	= overflow_handler;  in perf_event_alloc()
11924 		event->overflow_handler = perf_event_output_backward;  in perf_event_alloc()
11927 		event->overflow_handler = perf_event_output_forward;  in perf_event_alloc()
12757 				 perf_overflow_handler_t overflow_handler,  in perf_event_create_kernel_counter()  argument
12774 				 overflow_handler, context, -1);  in perf_event_create_kernel_counter()
13309 	child_event->overflow_handler = parent_event->overflow_handler;  in inherit_event()