v4.19.13 snapshot.
diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h
new file mode 100644
index 0000000..d0d7d96
--- /dev/null
+++ b/include/linux/anon_inodes.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/linux/anon_inodes.h
+ *
+ * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
+ *
+ */
+
+#ifndef _LINUX_ANON_INODES_H
+#define _LINUX_ANON_INODES_H
+
+struct file_operations;
+
+struct file *anon_inode_getfile(const char *name,
+ const struct file_operations *fops,
+ void *priv, int flags);
+int anon_inode_getfd(const char *name, const struct file_operations *fops,
+ void *priv, int flags);
+
+#endif /* _LINUX_ANON_INODES_H */
+