NFS: Fix /proc/mount for legacy binary interface

Add a flag so we know if we mounted the NFS server using the legacy
binary interface.  If we used the legacy interface, then we should not
show the mountd options.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index f9df16de4a56..f1ae39f6cb02 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -546,6 +546,9 @@ static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
 {
         struct sockaddr *sap = (struct sockaddr *)&nfss->mountd_address;
 
+        if (nfss->flags & NFS_MOUNT_LEGACY_INTERFACE)
+                return;
+
         switch (sap->sa_family) {
         case AF_INET: {
                 struct sockaddr_in *sin = (struct sockaddr_in *)sap;
@@ -1780,6 +1783,7 @@ static int nfs_validate_mount_data(void *options,
                  * can deal with.
                  */
                 args->flags             = data->flags & NFS_MOUNT_FLAGMASK;
+                args->flags             |= NFS_MOUNT_LEGACY_INTERFACE;
                 args->rsize             = data->rsize;
                 args->wsize             = data->wsize;
                 args->timeo             = data->timeo;