Index: doc/src/sgml/wal.sgml
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RCS file: /cvsroot/pgsql/doc/src/sgml/wal.sgml,v
retrieving revision 1.55
diff -c -c -r1.55 wal.sgml
*** doc/src/sgml/wal.sgml	10 Dec 2008 11:05:49 -0000	1.55
--- doc/src/sgml/wal.sgml	18 Dec 2008 22:15:53 -0000
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*** 138,145 ****
     <tip>
      <para>
       Because <acronym>WAL</acronym> restores database file
!      contents after a crash, it is not necessary to use a
!      journaled filesystem for reliability.  In fact, journaling
       overhead can reduce performance, especially if journaling
       causes file system <emphasis>data</emphasis> to be flushed
       to disk.  Fortunately, data flushing during journaling can
--- 138,145 ----
     <tip>
      <para>
       Because <acronym>WAL</acronym> restores database file
!      contents after a crash, journaled filesystems are necessary for
!      reliable storage of the data files or WAL files.  In fact, journaling
       overhead can reduce performance, especially if journaling
       causes file system <emphasis>data</emphasis> to be flushed
       to disk.  Fortunately, data flushing during journaling can