354 bool afs_iterate_addresses(struct afs_addr_cursor *ac)  in afs_iterate_addresses()  argument
359 	if (!ac->alist)  in afs_iterate_addresses()
362 	set = ac->alist->responded;  in afs_iterate_addresses()
363 	failed = ac->alist->failed;  in afs_iterate_addresses()
364 	_enter("%lx-%lx-%lx,%d", set, failed, ac->tried, ac->index);  in afs_iterate_addresses()
366 	ac->nr_iterations++;  in afs_iterate_addresses()
368 	set &= ~(failed | ac->tried);  in afs_iterate_addresses()
373 	index = READ_ONCE(ac->alist->preferred);  in afs_iterate_addresses()
380 	ac->index = index;  in afs_iterate_addresses()
381 	set_bit(index, &ac->tried);  in afs_iterate_addresses()
382 	ac->responded = false;  in afs_iterate_addresses()
389 int afs_end_cursor(struct afs_addr_cursor *ac)  in afs_end_cursor()  argument
393 	alist = ac->alist;  in afs_end_cursor()
395 		if (ac->responded &&  in afs_end_cursor()
396 		    ac->index != alist->preferred &&  in afs_end_cursor()
397 		    test_bit(ac->alist->preferred, &ac->tried))  in afs_end_cursor()
398 			WRITE_ONCE(alist->preferred, ac->index);  in afs_end_cursor()
400 		ac->alist = NULL;  in afs_end_cursor()
403 	return ac->error;  in afs_end_cursor()