v4.19.13 snapshot.
diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
new file mode 100644
index 0000000..7ec10b9
--- /dev/null
+++ b/net/sunrpc/netns.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __SUNRPC_NETNS_H__
+#define __SUNRPC_NETNS_H__
+
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+
+struct cache_detail;
+
+struct sunrpc_net {
+ struct proc_dir_entry *proc_net_rpc;
+ struct cache_detail *ip_map_cache;
+ struct cache_detail *unix_gid_cache;
+ struct cache_detail *rsc_cache;
+ struct cache_detail *rsi_cache;
+
+ struct super_block *pipefs_sb;
+ struct rpc_pipe *gssd_dummy;
+ struct mutex pipefs_sb_lock;
+
+ struct list_head all_clients;
+ spinlock_t rpc_client_lock;
+
+ struct rpc_clnt *rpcb_local_clnt;
+ struct rpc_clnt *rpcb_local_clnt4;
+ spinlock_t rpcb_clnt_lock;
+ unsigned int rpcb_users;
+ unsigned int rpcb_is_af_local : 1;
+
+ struct mutex gssp_lock;
+ struct rpc_clnt *gssp_clnt;
+ int use_gss_proxy;
+ int pipe_version;
+ atomic_t pipe_users;
+ struct proc_dir_entry *use_gssp_proc;
+};
+
+extern unsigned int sunrpc_net_id;
+
+int ip_map_cache_create(struct net *);
+void ip_map_cache_destroy(struct net *);
+
+#endif