310 bool afs_iterate_addresses(struct afs_addr_cursor *ac)  in afs_iterate_addresses()  argument
312 	_enter("%hu+%hd", ac->start, (short)ac->index);  in afs_iterate_addresses()
314 	if (!ac->alist)  in afs_iterate_addresses()
317 	if (ac->begun) {  in afs_iterate_addresses()
318 		ac->index++;  in afs_iterate_addresses()
319 		if (ac->index == ac->alist->nr_addrs)  in afs_iterate_addresses()
320 			ac->index = 0;  in afs_iterate_addresses()
322 		if (ac->index == ac->start) {  in afs_iterate_addresses()
323 			ac->error = -EDESTADDRREQ;  in afs_iterate_addresses()
328 	ac->begun = true;  in afs_iterate_addresses()
329 	ac->responded = false;  in afs_iterate_addresses()
330 	ac->addr = &ac->alist->addrs[ac->index];  in afs_iterate_addresses()
337 int afs_end_cursor(struct afs_addr_cursor *ac)  in afs_end_cursor()  argument
341 	alist = ac->alist;  in afs_end_cursor()
343 		if (ac->responded && ac->index != ac->start)  in afs_end_cursor()
344 			WRITE_ONCE(alist->index, ac->index);  in afs_end_cursor()
348 	ac->addr = NULL;  in afs_end_cursor()
349 	ac->alist = NULL;  in afs_end_cursor()
350 	ac->begun = false;  in afs_end_cursor()
351 	return ac->error;  in afs_end_cursor()
357 int afs_set_vl_cursor(struct afs_addr_cursor *ac, struct afs_cell *cell)  in afs_set_vl_cursor()  argument
385 	ac->alist = alist;  in afs_set_vl_cursor()
386 	ac->addr = NULL;  in afs_set_vl_cursor()
387 	ac->start = READ_ONCE(alist->index);  in afs_set_vl_cursor()
388 	ac->index = ac->start;  in afs_set_vl_cursor()
389 	ac->error = 0;  in afs_set_vl_cursor()
390 	ac->begun = false;  in afs_set_vl_cursor()