netdev - [PATCH 1/2] fix lockdep warning

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Date:	Mon, 3 Oct 2011 12:56:38 +0200
From:	Hans Schillstrom <hans.schillstrom@...csson.com>
To:	<horms@...ge.net.au>, <ja@....bg>, <wensong@...ux-vs.org>,
	<lvs-devel@...r.kernel.org>, <netdev@...r.kernel.org>,
	<netfilter-devel@...r.kernel.org>
CC:	<hans@...illstrom.com>,
	Hans Schillstrom <hans.schillstrom@...csson.com>
Subject: [PATCH 1/2] fix lockdep warning

From: Hans Schillstrom <hans@...illstrom.com>

rs_lock needs a key to make lock dep happy.

Signed-off-by: Hans Schillstrom <hans.schillstrom@...csson.com>

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 2b771dc..a1af72f 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -57,6 +57,7 @@ static DEFINE_MUTEX(__ip_vs_mutex);
 
 /* lock for service table */
 static DEFINE_RWLOCK(__ip_vs_svc_lock);
+static struct lock_class_key ip_vs_rs_key;
 
 /* sysctl variables */
 
@@ -3680,6 +3681,7 @@ int __net_init ip_vs_control_net_init(struct net *net)
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
 	ipvs->rs_lock = __RW_LOCK_UNLOCKED(ipvs->rs_lock);
+	__rwlock_init(&ipvs->rs_lock, "ipvs->rs_lock", &ip_vs_rs_key);
 
 	/* Initialize rs_table */
 	for (idx = 0; idx < IP_VS_RTAB_SIZE; idx++)
-- 
1.7.4.4

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