[PATCH 2/2] ipvs: remove extra rcu lock

[Simon Horman <horms@xxxxxxxxxxxx>]

From: Julian Anastasov <ja@xxxxxx>

In 3.7 we added code that uses ipv4_update_pmtu but after commit
c5ae7d4192 (ipv4: must use rcu protection while calling fib_lookup)
the RCU lock is not needed.

Signed-off-by: Julian Anastasov <ja@xxxxxx>
Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
---
 net/netfilter/ipvs/ip_vs_core.c |    2 --
 1 file changed, 2 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 18b4bc5..61f49d2 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1394,10 +1394,8 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, 
unsigned int hooknum)
                        skb_reset_network_header(skb);
                        IP_VS_DBG(12, "ICMP for IPIP %pI4->%pI4: mtu=%u\n",
                                &ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr, mtu);
-                       rcu_read_lock();
                        ipv4_update_pmtu(skb, dev_net(skb->dev),
                                         mtu, 0, 0, 0, 0);
-                       rcu_read_unlock();
                        /* Client uses PMTUD? */
                        if (!(cih->frag_off & htons(IP_DF)))
                                goto ignore_ipip;
-- 
1.7.10.4

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