diff --git a/mm/vmscan.c b/mm/vmscan.c
index d254306..95c08a8 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2056,7 +2056,7 @@
 		+ global_page_state(NR_INACTIVE_FILE);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_HIBERNATION
 /*
  * Helper function for shrink_all_memory().  Tries to reclaim 'nr_pages' pages
  * from LRU lists system-wide, for given pass and priority.
@@ -2196,7 +2196,7 @@
 
 	return sc.nr_reclaimed;
 }
-#endif
+#endif /* CONFIG_HIBERNATION */
 
 /* It's optimal to keep kswapds on the same CPUs as their memory, but
    not required for correctness.  So if the last cpu in a node goes