diff -ruN linux-3.9-rc3-orig/Documentation/filesystems/ext4.txt linux-3.9-rc3/Documentation/filesystems/ext4.txt
--- linux-3.9-rc3-orig/Documentation/filesystems/ext4.txt	2013-03-17 23:59:32.000000000 +0100
+++ linux-3.9-rc3/Documentation/filesystems/ext4.txt	2013-03-21 18:27:19.246017488 +0100
@@ -65,7 +65,7 @@
     note that ext4 enables write barriers by default, while ext3 does
     not enable write barriers by default.  So it is useful to use
     explicitly specify whether barriers are enabled or not when via the
-    '-o barriers=[0|1]' mount option for both ext3 and ext4 filesystems
+    '-o barrier=[0|1]' mount option for both ext3 and ext4 filesystems
     for a fair comparison.  When tuning ext3 for best benchmark numbers,
     it is often worthwhile to try changing the data journaling mode; '-o
     data=writeback' can be faster for some workloads.  (Note however that