1 files changed, 11 insertions, 0 deletions

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index bd3ba1d323ea..d01def299d40 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -742,6 +742,16 @@ int nfs_show_options(struct seq_file *m, struct dentry *root)
 EXPORT_SYMBOL_GPL(nfs_show_options);
 
 #if IS_ENABLED(CONFIG_NFS_V4)
+static void show_lease(struct seq_file *m, struct nfs_server *server)
+{
+        struct nfs_client *clp = server->nfs_client;
+        unsigned long expire;
+
+        seq_printf(m, ",lease_time=%ld", clp->cl_lease_time / HZ);
+        expire = clp->cl_last_renewal + clp->cl_lease_time;
+        seq_printf(m, ",lease_expired=%ld",
+                   time_after(expire, jiffies) ?  0 : (jiffies - expire) / HZ);
+}
 #ifdef CONFIG_NFS_V4_1
 static void show_sessions(struct seq_file *m, struct nfs_server *server)
 {
@@ -850,6 +860,7 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root)
                 seq_printf(m, ",acl=0x%x", nfss->acl_bitmask);
                 show_sessions(m, nfss);
                 show_pnfs(m, nfss);
+                show_lease(m, nfss);
         }
 #endif