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ipv4: Cache net in iptunnel_xmit

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Store net in a variable in ip_tunnel_xmit so it does not need
to be recomputed when it is used again.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2015-10-07 16:48:41 -05:00 committed by David S. Miller
parent 792883303c
commit f859b0f662
1 changed files with 2 additions and 2 deletions
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4
net/ipv4/ip_tunnel_core.c
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@ -53,6 +53,7 @@ int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
__u8 tos, __u8 ttl, __be16 df, bool xnet)
{
int pkt_len = skb->len - skb_inner_network_offset(skb);
struct net *net = dev_net(rt->dst.dev);
struct iphdr *iph;
int err;
@ -76,8 +77,7 @@ int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
iph->daddr = dst;
iph->saddr = src;
iph->ttl = ttl;
__ip_select_ident(dev_net(rt->dst.dev), iph,
skb_shinfo(skb)->gso_segs ?: 1);
__ip_select_ident(net, iph, skb_shinfo(skb)->gso_segs ?: 1);
err = ip_local_out(sk, skb);
if (unlikely(net_xmit_eval(err)))