static void dx_show_index(char * label, struct dx_entry *entries)
{
	int i, n = dx_get_count (entries);
	printk(KERN_DEBUG "%s index", label);
	for (i = 0; i < n; i++) {
		printk(KERN_CONT " %x->%lu",
		       i ? dx_get_hash(entries + i) : 0,
		       (unsigned long)dx_get_block(entries + i));
	}
	printk(KERN_CONT "\n");
}