1 files changed, 26 insertions, 0 deletions

diff --git a/security/dummy.c b/security/dummy.c
index 3ccfbbe973b6..a3b29d0d00e5 100644
--- a/security/dummy.c
+++ b/security/dummy.c
@@ -245,6 +245,29 @@ static void dummy_sb_post_pivotroot (struct nameidata *old_nd, struct nameidata
         return;
 }
 
+static int dummy_sb_get_mnt_opts(const struct super_block *sb, char ***mount_options,
+                                 int **flags, int *num_opts)
+{
+        *mount_options = NULL;
+        *flags = NULL;
+        *num_opts = 0;
+        return 0;
+}
+
+static int dummy_sb_set_mnt_opts(struct super_block *sb, char **mount_options,
+                                 int *flags, int num_opts)
+{
+        if (unlikely(num_opts))
+                return -EOPNOTSUPP;
+        return 0;
+}
+
+static void dummy_sb_clone_mnt_opts(const struct super_block *oldsb,
+                                    struct super_block *newsb)
+{
+        return;
+}
+
 static int dummy_inode_alloc_security (struct inode *inode)
 {
         return 0;
@@ -998,6 +1021,9 @@ void security_fixup_ops (struct security_operations *ops)
         set_to_dummy_if_null(ops, sb_post_addmount);
         set_to_dummy_if_null(ops, sb_pivotroot);
         set_to_dummy_if_null(ops, sb_post_pivotroot);
+        set_to_dummy_if_null(ops, sb_get_mnt_opts);
+        set_to_dummy_if_null(ops, sb_set_mnt_opts);
+        set_to_dummy_if_null(ops, sb_clone_mnt_opts);
         set_to_dummy_if_null(ops, inode_alloc_security);
         set_to_dummy_if_null(ops, inode_free_security);
         set_to_dummy_if_null(ops, inode_init_security);