From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 18 Jun 2010 16:23:58 +0000 (-0400)
Subject: NFSv4: Ensure that /proc/self/mountinfo displays the minor version number
X-Git-Tag: firefly_0821_release~10186^2~1415
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b395558f18e209a31ee1bd7719c59003200838c5;p=firefly-linux-kernel-4.4.55.git

NFSv4: Ensure that /proc/self/mountinfo displays the minor version number

commit 0be8189f2c87fcc747d6a4a657a0b6e2161b2318 upstream.

Currently, we do not display the minor version mount parameter in the
/proc mount info.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 4bf23f6f93cf..a53b9e5068cd 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -534,6 +534,22 @@ static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
 	}
 }
 
+#ifdef CONFIG_NFS_V4
+static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
+				    int showdefaults)
+{
+	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,
+				    int showdefaults)
+{
+}
+#endif
+
 /*
  * Describe the mount options in force on this server representation
  */
@@ -595,11 +611,9 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
 
 	if (version != 4)
 		nfs_show_mountd_options(m, nfss, showdefaults);
+	else
+		nfs_show_nfsv4_options(m, nfss, showdefaults);
 
-#ifdef CONFIG_NFS_V4
-	if (clp->rpc_ops->version == 4)
-		seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
-#endif
 	if (nfss->options & NFS_OPTION_FSCACHE)
 		seq_printf(m, ",fsc");
 }