diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2015-10-07 16:48:42 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-08 04:26:59 -0700 |
| commit | 77589ce0f84dd99cc946fd71fe6fb44dd8220d0a (patch) | |
| tree | 27c8a96e43cebfbe89c5cc8e3961c412137b8b36 | |
| parent | f859b0f662493e4f53d462f5759e3c4302933077 (diff) | |
ipv4: Cache net in ip_build_and_send_pkt and ip_queue_xmit
Compute net and store it in a variable in the functions
ip_build_and_send_pkt and ip_queue_xmit so that it does not need to be
recomputed next time it is needed.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/ip_output.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 10366ee03bec..a7012f2fa68a 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -139,6 +139,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk, { struct inet_sock *inet = inet_sk(sk); struct rtable *rt = skb_rtable(skb); + struct net *net = sock_net(sk); struct iphdr *iph; /* Build the IP header. */ @@ -157,7 +158,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk, iph->id = 0; } else { iph->frag_off = 0; - __ip_select_ident(sock_net(sk), iph, 1); + __ip_select_ident(net, iph, 1); } if (opt && opt->opt.optlen) { @@ -382,6 +383,7 @@ static void ip_copy_addrs(struct iphdr *iph, const struct flowi4 *fl4) int ip_queue_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl) { struct inet_sock *inet = inet_sk(sk); + struct net *net = sock_net(sk); struct ip_options_rcu *inet_opt; struct flowi4 *fl4; struct rtable *rt; @@ -412,7 +414,7 @@ int ip_queue_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl) * keep trying until route appears or the connection times * itself out. */ - rt = ip_route_output_ports(sock_net(sk), fl4, sk, + rt = ip_route_output_ports(net, fl4, sk, daddr, inet->inet_saddr, inet->inet_dport, inet->inet_sport, @@ -449,7 +451,7 @@ packet_routed: ip_options_build(skb, &inet_opt->opt, inet->inet_daddr, rt, 0); } - ip_select_ident_segs(sock_net(sk), skb, sk, + ip_select_ident_segs(net, skb, sk, skb_shinfo(skb)->gso_segs ?: 1); /* TODO : should we use skb->sk here instead of sk ? */ @@ -462,7 +464,7 @@ packet_routed: no_route: rcu_read_unlock(); - IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTNOROUTES); + IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES); kfree_skb(skb); return -EHOSTUNREACH; } |