vmscan: split LRU lists into anon & file sets

[safe/jmp/linux-2.6] / include / linux / vmstat.h

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 58334d4..ff5179f 100644 (file)
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -159,6 +159,16 @@ static inline unsigned long zone_page_state(struct zone *zone,
        return x;
 }
 
+extern unsigned long global_lru_pages(void);
+
+static inline unsigned long zone_lru_pages(struct zone *zone)
+{
+       return (zone_page_state(zone, NR_ACTIVE_ANON)
+               + zone_page_state(zone, NR_ACTIVE_FILE)
+               + zone_page_state(zone, NR_INACTIVE_ANON)
+               + zone_page_state(zone, NR_INACTIVE_FILE));
+}
+
 #ifdef CONFIG_NUMA
 /*
  * Determine the per node value of a stat item. This function