From a8c9486b816f74d4645144db9e8fa2f711c1fc4b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 1 Oct 2010 16:15:08 +0000
Subject: ipmr: RCU protection for mfc_cache_array

Use RCU & RTNL protection for mfc_cache_array[]

ipmr_cache_find() is called under rcu_read_lock();

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/mroute.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/linux/mroute.h')

diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index fa04b246c9ae..0fa7a3a874c8 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -213,6 +213,7 @@ struct mfc_cache {
 			unsigned char ttls[MAXVIFS];	/* TTL thresholds		*/
 		} res;
 	} mfc_un;
+	struct rcu_head	rcu;
 };
 
 #define MFC_STATIC		1
-- 
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