140 static int o2hb_region_pin(const char *region_uuid);
141 static void o2hb_region_unpin(const char *region_uuid);
2266 static int o2hb_region_pin(const char *region_uuid)  in o2hb_region_pin()  argument
2281 		if (region_uuid) {  in o2hb_region_pin()
2282 			if (strcmp(region_uuid, uuid))  in o2hb_region_pin()
2319 static void o2hb_region_unpin(const char *region_uuid)  in o2hb_region_unpin()  argument
2332 		if (region_uuid) {  in o2hb_region_unpin()
2333 			if (strcmp(region_uuid, uuid))  in o2hb_region_unpin()
2348 static int o2hb_region_inc_user(const char *region_uuid)  in o2hb_region_inc_user()  argument
2356 	    ret = o2hb_region_pin(region_uuid);  in o2hb_region_inc_user()
2377 static void o2hb_region_dec_user(const char *region_uuid)  in o2hb_region_dec_user()  argument
2383 	    o2hb_region_unpin(region_uuid);  in o2hb_region_dec_user()
2399 int o2hb_register_callback(const char *region_uuid,  in o2hb_register_callback()  argument
2415 	if (region_uuid) {  in o2hb_register_callback()
2416 		ret = o2hb_region_inc_user(region_uuid);  in o2hb_register_callback()
2443 void o2hb_unregister_callback(const char *region_uuid,  in o2hb_unregister_callback()  argument
2455 	if (region_uuid)  in o2hb_unregister_callback()
2456 		o2hb_region_dec_user(region_uuid);  in o2hb_unregister_callback()