ipv4: Cache net in iptunnel_xmit (f859b0f6) · Commits · 戴 / test

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:

net/ipv4/ip_tunnel_core.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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)))