Part of #22424.
@@ -425,7 +425,7 @@ storage_dir_remove_file(storage_dir_t *d,
}
if (unlink(ipath) == 0) {
- if (! BUG(d->usage < size)) {
+ if (d->usage_known && ! BUG(d->usage < size)) {
d->usage -= size;
} else {