Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 136 insertions, 0 deletions

diff --git a/kernel/net/sunrpc/sunrpc_syms.c b/kernel/net/sunrpc/sunrpc_syms.c
new file mode 100644
index 000000000..ee5d3d253
--- /dev/null
+++ b/kernel/net/sunrpc/sunrpc_syms.c
@@ -0,0 +1,136 @@
+/*
+ * linux/net/sunrpc/sunrpc_syms.c
+ *
+ * Symbols exported by the sunrpc module.
+ *
+ * Copyright (C) 1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/uio.h>
+#include <linux/unistd.h>
+#include <linux/init.h>
+
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/svcsock.h>
+#include <linux/sunrpc/auth.h>
+#include <linux/workqueue.h>
+#include <linux/sunrpc/rpc_pipe_fs.h>
+#include <linux/sunrpc/xprtsock.h>
+
+#include "netns.h"
+
+int sunrpc_net_id;
+EXPORT_SYMBOL_GPL(sunrpc_net_id);
+
+static __net_init int sunrpc_init_net(struct net *net)
+{
+	int err;
+	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+	err = rpc_proc_init(net);
+	if (err)
+		goto err_proc;
+
+	err = ip_map_cache_create(net);
+	if (err)
+		goto err_ipmap;
+
+	err = unix_gid_cache_create(net);
+	if (err)
+		goto err_unixgid;
+
+	err = rpc_pipefs_init_net(net);
+	if (err)
+		goto err_pipefs;
+
+	INIT_LIST_HEAD(&sn->all_clients);
+	spin_lock_init(&sn->rpc_client_lock);
+	spin_lock_init(&sn->rpcb_clnt_lock);
+	return 0;
+
+err_pipefs:
+	unix_gid_cache_destroy(net);
+err_unixgid:
+	ip_map_cache_destroy(net);
+err_ipmap:
+	rpc_proc_exit(net);
+err_proc:
+	return err;
+}
+
+static __net_exit void sunrpc_exit_net(struct net *net)
+{
+	rpc_pipefs_exit_net(net);
+	unix_gid_cache_destroy(net);
+	ip_map_cache_destroy(net);
+	rpc_proc_exit(net);
+}
+
+static struct pernet_operations sunrpc_net_ops = {
+	.init = sunrpc_init_net,
+	.exit = sunrpc_exit_net,
+	.id = &sunrpc_net_id,
+	.size = sizeof(struct sunrpc_net),
+};
+
+static int __init
+init_sunrpc(void)
+{
+	int err = rpc_init_mempool();
+	if (err)
+		goto out;
+	err = rpcauth_init_module();
+	if (err)
+		goto out2;
+
+	cache_initialize();
+
+	err = register_pernet_subsys(&sunrpc_net_ops);
+	if (err)
+		goto out3;
+
+	err = register_rpc_pipefs();
+	if (err)
+		goto out4;
+
+	sunrpc_debugfs_init();
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+	rpc_register_sysctl();
+#endif
+	svc_init_xprt_sock();	/* svc sock transport */
+	init_socket_xprt();	/* clnt sock transport */
+	return 0;
+
+out4:
+	unregister_pernet_subsys(&sunrpc_net_ops);
+out3:
+	rpcauth_remove_module();
+out2:
+	rpc_destroy_mempool();
+out:
+	return err;
+}
+
+static void __exit
+cleanup_sunrpc(void)
+{
+	rpcauth_remove_module();
+	cleanup_socket_xprt();
+	svc_cleanup_xprt_sock();
+	sunrpc_debugfs_exit();
+	unregister_rpc_pipefs();
+	rpc_destroy_mempool();
+	unregister_pernet_subsys(&sunrpc_net_ops);
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+	rpc_unregister_sysctl();
+#endif
+	rcu_barrier(); /* Wait for completion of call_rcu()'s */
+}
+MODULE_LICENSE("GPL");
+fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
+module_exit(cleanup_sunrpc);