diff --git a/fs/direct-io.c b/fs/direct-io.c
index 02ccf766903c..c1e03ae961af 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -39,7 +39,7 @@
 
 /*
  * How many user pages to map in one call to get_user_pages().  This determines
- * the size of a structure on the stack.
+ * the size of a structure in the slab cache
  */
 #define DIO_PAGES	64