v4.19.13 snapshot.
diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h
new file mode 100644
index 0000000..286fd96
--- /dev/null
+++ b/include/net/netns/nftables.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NETNS_NFTABLES_H_
+#define _NETNS_NFTABLES_H_
+
+#include <linux/list.h>
+
+struct netns_nftables {
+ struct list_head tables;
+ struct list_head commit_list;
+ struct mutex commit_mutex;
+ unsigned int base_seq;
+ u8 gencursor;
+ u8 validate_state;
+};
+
+#endif