convert get_sb_single() users

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index ffcd04f..ddb1f41 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -415,16 +415,16 @@
 	return ret;
 }
 
-static int openprom_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *openprom_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, openprom_fill_super, mnt);
+	return mount_single(fs_type, flags, data, openprom_fill_super)
 }
 
 static struct file_system_type openprom_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "openpromfs",
-	.get_sb		= openprom_get_sb,
+	.mount		= openprom_mount,
 	.kill_sb	= kill_anon_super,
 };