1 files changed, 20 insertions, 0 deletions

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 58334d439516..9cd3ab0f554d 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -41,6 +41,16 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
 #ifdef CONFIG_HUGETLB_PAGE
                 HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL,
 #endif
+#ifdef CONFIG_UNEVICTABLE_LRU
+                UNEVICTABLE_PGCULLED,   /* culled to noreclaim list */
+                UNEVICTABLE_PGSCANNED,  /* scanned for reclaimability */
+                UNEVICTABLE_PGRESCUED,  /* rescued from noreclaim list */
+                UNEVICTABLE_PGMLOCKED,
+                UNEVICTABLE_PGMUNLOCKED,
+                UNEVICTABLE_PGCLEARED,  /* on COW, page truncate */
+                UNEVICTABLE_PGSTRANDED, /* unable to isolate on unlock */
+                UNEVICTABLE_MLOCKFREED,
+#endif
                 NR_VM_EVENT_ITEMS
 };
 
@@ -159,6 +169,16 @@ 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