NFS: Ensure we display the minor version correctly in /proc/mounts etc.

The 'minorversion' mount option is now deprecated, so we need to display
the minor version number in the 'vers=' format.

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

1 files changed, 10 insertions, 2 deletions

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ab58bb9b6115..7f0c93f8afe3 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -640,7 +640,6 @@ static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
         struct nfs_client *clp = nfss->nfs_client;
 
         seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
-        seq_printf(m, ",minorversion=%u", clp->cl_minorversion);
 }
 #else
 static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
@@ -649,6 +648,15 @@ static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
 }
 #endif
 
+static void nfs_show_nfs_version(struct seq_file *m,
+                unsigned int version,
+                unsigned int minorversion)
+{
+        seq_printf(m, ",vers=%u", version);
+        if (version == 4)
+                seq_printf(m, ".%u", minorversion);
+}
+
 /*
  * Describe the mount options in force on this server representation
  */
@@ -676,7 +684,7 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
         u32 version = clp->rpc_ops->version;
         int local_flock, local_fcntl;
 
-        seq_printf(m, ",vers=%u", version);
+        nfs_show_nfs_version(m, version, clp->cl_minorversion);
         seq_printf(m, ",rsize=%u", nfss->rsize);
         seq_printf(m, ",wsize=%u", nfss->wsize);
         if (nfss->bsize != 0)