From 58d746213d3defb84947ff1407e6cb0eabb26f38 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Tue, 14 Feb 2012 17:41:57 -0500
Subject: [PATCH] Improve fsync documentation by stating that -W _0_ turns of
 write caching.

---
 doc/src/sgml/wal.sgml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
index 1d1924bc8d..0afb9d6af6 100644
--- a/doc/src/sgml/wal.sgml
+++ b/doc/src/sgml/wal.sgml
@@ -73,7 +73,7 @@
       <para>
         On <productname>Linux</>, IDE drives can be queried using
         <command>hdparm -I</command>; write caching is enabled if there is
-        a <literal>*</> next to <literal>Write cache</>.  <command>hdparm -W</>
+        a <literal>*</> next to <literal>Write cache</>.  <command>hdparm -W 0</>
         can be used to turn off write caching.  SCSI drives can be queried
         using <ulink url="http://sg.danny.cz/sg/sdparm.html"><application>sdparm</></ulink>.
         Use <command>sdparm --get=WCE</command> to check
-- 
2.39.5