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From: Rick Macklem <rmacklem@FreeBSD.org>
Date: Tue, 25 Dec 2012 22:34:43 +0000 (UTC)
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Subject: svn commit: r244689 - head/usr.sbin/mountd
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Author: rmacklem
Date: Tue Dec 25 22:34:43 2012
New Revision: 244689
URL: http://svnweb.freebsd.org/changeset/base/244689

Log:
  Attempt to clarify that for ZFS, all file systems under
  the NFSv4 root must be exported. This is because ZFS
  checks exports itself.
  This is a content change.
  
  MFC after:	2 weeks

Modified:
  head/usr.sbin/mountd/exports.5

Modified: head/usr.sbin/mountd/exports.5
==============================================================================
--- head/usr.sbin/mountd/exports.5	Tue Dec 25 20:23:53 2012	(r244688)
+++ head/usr.sbin/mountd/exports.5	Tue Dec 25 22:34:43 2012	(r244689)
@@ -28,7 +28,7 @@
 .\"     @(#)exports.5	8.3 (Berkeley) 3/29/95
 .\" $FreeBSD$
 .\"
-.Dd July 12, 2011
+.Dd December 23, 2012
 .Dt EXPORTS 5
 .Os
 .Sh NAME
@@ -311,12 +311,15 @@ For the third form which specifies the N
 specifies the location within the server's file system tree which is the
 root of the NFSv4 tree.
 All entries of this form must specify the same directory path.
-This location can be any directory and does not
+For file systems other than ZFS,
+this location can be any directory and does not
 need to be within an exported file system. If it is not in an exported
 file system, a very limited set of operations are permitted, so that an
 NFSv4 client can traverse the tree to an exported file system.
 Although parts of the NFSv4 tree can be non-exported, the entire NFSv4 tree
 must consist of local file systems capable of being exported via NFS.
+All ZFS file systems in the subtree below the NFSv4 tree root must be
+exported.
 NFSv4 does not use the mount protocol and does permit clients to cross server
 mount point boundaries, although not all clients are capable of crossing the
 mount points.