[18/59] nfs: Add "lookupcache" to displayed mount options

[Greg KH]

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Patrick J. LoPresti <lopresti@xxxxxxxxx>

commit 9b00c64318cc337846a7a08a5678f5f19aeff188 upstream.

Running "cat /proc/mounts" fails to display the "lookupcache" option.
This oversight cost me a bunch of wasted time recently.

The following simple patch fixes it.

Signed-off-by: Patrick LoPresti <lopresti@xxxxxxxxx>
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 fs/nfs/super.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -616,6 +616,13 @@ static void nfs_show_mount_options(struc
 
 	if (nfss->options & NFS_OPTION_FSCACHE)
 		seq_printf(m, ",fsc");
+
+	if (nfss->flags & NFS_MOUNT_LOOKUP_CACHE_NONEG) {
+		if (nfss->flags & NFS_MOUNT_LOOKUP_CACHE_NONE)
+			seq_printf(m, ",lookupcache=none");
+		else
+			seq_printf(m, ",lookupcache=pos");
+	}
 }
 
 /*


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