if (prime_dir)
prime_ref_dir(dir, prefix);
- iter = xcalloc(1, sizeof(*iter));
+ CALLOC_ARRAY(iter, 1);
ref_iterator = &iter->base;
base_ref_iterator_init(ref_iterator, &cache_ref_iterator_vtable, 1);
ALLOC_GROW(iter->levels, 10, iter->levels_alloc);