Merge branch 'tipc'

Paul Gortmaker says:

====================
This is a rework of the content sent earlier[1], with the following changes:

	-drop the Kconfig --> modparam conversion patch; this was
	 requested to be replaced[2] with a dynamic port quantity resizing.
	 Ying and Erik were discussing how best to achieve this, and then
	 vacation schedules got in the way, so implementing that will
	 come (hopefully) in the next round.

	-rework the sk_rcvbuf patch to allow memory resizing via sysctl
	 as per what Ying and Neil discussed[3]

	-add 4 more seemingly straigtforward and relatively small changes
	 from Ying (the last 4 in the series).

	-add cosmetic UAPI comment update patch from Ying.

That said, the largest change is still the one where we make use of
the fact that linux supports kernel threads and do the server like
operations within kernel threads.  As Jon says:

   We remove the last remnants of the TIPC native API, to make it
   possible to simplify locking policy and solve a problem with lost
   topology events.

   First, we introduce a socket-based alternative to the native API.

   Second, we convert the two remaining users of the native API, the
   TIPC internal topology server and the configuarion server, to use the
   new API.

   Third, we remove the remaining code pertaining to the native API.

I have re-tested this collection of commits between 32 and 64 bit x86
machines using the standard tipc test suite, and build tested for ppc.

[1] http://patchwork.ozlabs.org/patch/247687/
[2] http://patchwork.ozlabs.org/patch/247680/
[3] http://patchwork.ozlabs.org/patch/247688/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 64 insertions, 0 deletions

diff --git a/net/tipc/sysctl.c b/net/tipc/sysctl.c
new file mode 100644
index 00000000000..f3fef93325a
--- /dev/null
+++ b/net/tipc/sysctl.c
@@ -0,0 +1,64 @@
+/*
+ * net/tipc/sysctl.c: sysctl interface to TIPC subsystem
+ *
+ * Copyright (c) 2013, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "core.h"
+
+#include <linux/sysctl.h>
+
+static struct ctl_table_header *tipc_ctl_hdr;
+
+static struct ctl_table tipc_table[] = {
+	{
+		.procname	= "tipc_rmem",
+		.data		= &sysctl_tipc_rmem,
+		.maxlen		= sizeof(sysctl_tipc_rmem),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{}
+};
+
+int tipc_register_sysctl(void)
+{
+	tipc_ctl_hdr = register_net_sysctl(&init_net, "net/tipc", tipc_table);
+	if (tipc_ctl_hdr == NULL)
+		return -ENOMEM;
+	return 0;
+}
+
+void tipc_unregister_sysctl(void)
+{
+	unregister_net_sysctl_table(tipc_ctl_hdr);
+}