162 static int o2hb_region_pin(const char *region_uuid);
163 static void o2hb_region_unpin(const char *region_uuid);
2378 static int o2hb_region_pin(const char *region_uuid)  in o2hb_region_pin()  argument
2393 		if (region_uuid) {  in o2hb_region_pin()
2394 			if (strcmp(region_uuid, uuid))  in o2hb_region_pin()
2431 static void o2hb_region_unpin(const char *region_uuid)  in o2hb_region_unpin()  argument
2444 		if (region_uuid) {  in o2hb_region_unpin()
2445 			if (strcmp(region_uuid, uuid))  in o2hb_region_unpin()
2460 static int o2hb_region_inc_user(const char *region_uuid)  in o2hb_region_inc_user()  argument
2468 	    ret = o2hb_region_pin(region_uuid);  in o2hb_region_inc_user()
2489 static void o2hb_region_dec_user(const char *region_uuid)  in o2hb_region_dec_user()  argument
2495 	    o2hb_region_unpin(region_uuid);  in o2hb_region_dec_user()
2511 int o2hb_register_callback(const char *region_uuid,  in o2hb_register_callback()  argument
2527 	if (region_uuid) {  in o2hb_register_callback()
2528 		ret = o2hb_region_inc_user(region_uuid);  in o2hb_register_callback()
2555 void o2hb_unregister_callback(const char *region_uuid,  in o2hb_unregister_callback()  argument
2567 	if (region_uuid)  in o2hb_unregister_callback()
2568 		o2hb_region_dec_user(region_uuid);  in o2hb_unregister_callback()