spin_unlock_irq(&mapping->tree_lock);
swapcache_free(swap, page);
} else {
+ void (*freepage)(struct page *);
+
+ freepage = mapping->a_ops->freepage;
+
__remove_from_page_cache(page);
spin_unlock_irq(&mapping->tree_lock);
mem_cgroup_uncharge_cache_page(page);
+
+ if (freepage != NULL)
+ freepage(page);
}
return 1;
* back off and wait for congestion to clear because further reclaim
* will encounter the same problem
*/
- if (nr_dirty == nr_congested)
+ if (nr_dirty == nr_congested && nr_dirty != 0)
zone_set_flag(zone, ZONE_CONGESTED);
free_page_list(&free_pages);