svn commit: r316793 - head/sbin/mount_nfs

[Rick Macklem]

Author: rmacklem
Date: Thu Apr 13 22:05:24 2017
New Revision: 316793
URL: https://svnweb.freebsd.org/changeset/base/316793

Log:
  Document the "oneopenown" option added by r316792.
  
  This is a content change.
  
  MFC after:	2 weeks

Modified:
  head/sbin/mount_nfs/mount_nfs.8

Modified: head/sbin/mount_nfs/mount_nfs.8
==============================================================================
--- head/sbin/mount_nfs/mount_nfs.8	Thu Apr 13 21:54:19 2017	(r316792)
+++ head/sbin/mount_nfs/mount_nfs.8	Thu Apr 13 22:05:24 2017	(r316793)
@@ -28,7 +28,7 @@
 .\"	@(#)mount_nfs.8	8.3 (Berkeley) 3/29/95
 .\" $FreeBSD$
 .\"
-.Dd September 10, 2016
+.Dd April 13, 2017
 .Dt MOUNT_NFS 8
 .Os
 .Sh NAME
@@ -201,6 +201,14 @@ The only minor version currently support
 This option is only meaningful when used with the
 .Cm nfsv4
 option.
+.It Cm oneopenown
+Make a minor version 1 of the NFS Version 4 protocol mount use a single OpenOwner
+for all Opens.
+This may be useful for a server with a very low limit on OpenOwners, such as
+AmazonEFS.
+It can only be used with an NFSv4.1 mount.
+It may not work correctly when Delegations are being issued by a server,
+but note that the AmazonEFS server does not issued delegations at this time.
 .It Cm pnfs
 Enable support for parallel NFS (pNFS) for minor version 1 of the
 NFS Version 4 protocol.