diff --git a/mm/mmap.c b/mm/mmap.c
index 44bb4d8..28416f6 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -144,7 +144,7 @@
 		 */
 		free -= global_page_state(NR_SHMEM);
 
-		free += nr_swap_pages;
+		free += get_nr_swap_pages();
 
 		/*
 		 * Any slabs which are created with the