Branch b1_6

b=15927
i=johann
i=huanghua

Add ChangeLog entry.

lustre/ChangeLog

@@ -38,6 +38,12 @@ tbd Sun Microsystems, Inc.
 	* Output of lfs quota has been made less detailed by default,
 	  old (verbose) output can be obtained by using -v option.
 
+Severity   : normal
+Bugzilla   : 15927
+Frequency  : rare
+Description: replace ptlrpcd with the statahead thread to interpret the async
+             statahead RPC callback
+
 Severity   : normal
 Bugzilla   : 16611
 Frequency  : on recovery