* We can skip free pages. And we can only deal with pages on
* LRU.
*/
- ret = isolate_lru_page(page, &source);
+ ret = isolate_lru_page(page);
if (!ret) { /* Success */
+ list_add_tail(&page->lru, &source);
move_pages--;
} else {
/* Becasue we don't have big zone->lock. we should