/*
* It seems like __get_free_pages only ups the usage count
- * of the first page. This doesn't work with nopage mapping, so
- * up the usage count once more.
+ * of the first page. This doesn't work with fault mapping, so
+ * up the usage count once more (XXX: should use split_page or
+ * compound page).
*/
memset((void *)va->logical, 0x00, va->size);