From 7d920166178e6f8b13da9200f7a8edbcc6e4a7aa Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 2 Aug 2011 12:20:43 +0200
Subject: [PATCH] add nfs4 support

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jim Rees <rees@umich.edu>
---
 common.rc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/common.rc b/common.rc
index a5378ddf..2cbcb73a 100644
--- a/common.rc
+++ b/common.rc
@@ -558,7 +558,13 @@ _fs_type()
 	exit 1
     fi
 
-    _df_device $1 | $AWK_PROG '{ print $2 }'
+    #
+    # The Linux kernel shows NFSv4 filesystems in df output as
+    # filesystem type nfs4, although we mounted it as nfs earlier.
+    # Fix the filesystem type up here so that the callers don't
+    # have to bother with this quirk.
+    #
+    _df_device $1 | $AWK_PROG '{ print $2 }' | sed -e 's/nfs4/nfs/'
 }
 
 # return the FS mount options of a mounted device
-- 
2.39.5