summaryrefslogtreecommitdiffstats
path: root/net/ipv4/tcp_ipv4.c
diff options
context:
space:
mode:
authorPavel Emelyanov <xemul@openvz.org>2008-07-16 20:20:58 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-16 20:20:58 -0700
commita86b1e3019455283a677c2485cfeda2dc36df3eb (patch)
tree452f1ec6cba2a131d189be91a6f4ec1d50092827 /net/ipv4/tcp_ipv4.c
parentc5346fe396f5e22bbfb3ec037c43891c3c57d3e6 (diff)
downloadlinux-a86b1e3019455283a677c2485cfeda2dc36df3eb.tar.gz
linux-a86b1e3019455283a677c2485cfeda2dc36df3eb.tar.bz2
linux-a86b1e3019455283a677c2485cfeda2dc36df3eb.zip
inet: prepare struct net for TCP MIB accounting
This is the same as the first patch in the set, but preparing the net for TCP_XXX_STATS - save the struct net on the stack where required and possible. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 7797d528701b..db3bf9be076f 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -544,6 +544,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
#ifdef CONFIG_TCP_MD5SIG
struct tcp_md5sig_key *key;
#endif
+ struct net *net;
/* Never send a reset in response to a reset. */
if (th->rst)
@@ -594,7 +595,8 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
sizeof(struct tcphdr), IPPROTO_TCP, 0);
arg.csumoffset = offsetof(struct tcphdr, check) / 2;
- ip_send_reply(dev_net(skb->dst->dev)->ipv4.tcp_sock, skb,
+ net = dev_net(skb->dst->dev);
+ ip_send_reply(net->ipv4.tcp_sock, skb,
&arg, arg.iov[0].iov_len);
TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
@@ -619,6 +621,7 @@ static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
];
} rep;
struct ip_reply_arg arg;
+ struct net *net = dev_net(skb->dev);
memset(&rep.th, 0, sizeof(struct tcphdr));
memset(&arg, 0, sizeof(arg));
@@ -668,7 +671,7 @@ static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
if (oif)
arg.bound_dev_if = oif;
- ip_send_reply(dev_net(skb->dev)->ipv4.tcp_sock, skb,
+ ip_send_reply(net->ipv4.tcp_sock, skb,
&arg, arg.iov[0].iov_len);
TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
@@ -1505,6 +1508,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
struct tcphdr *th;
struct sock *sk;
int ret;
+ struct net *net = dev_net(skb->dev);
if (skb->pkt_type != PACKET_HOST)
goto discard_it;
@@ -1539,7 +1543,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
TCP_SKB_CB(skb)->flags = iph->tos;
TCP_SKB_CB(skb)->sacked = 0;
- sk = __inet_lookup(dev_net(skb->dev), &tcp_hashinfo, iph->saddr,
+ sk = __inet_lookup(net, &tcp_hashinfo, iph->saddr,
th->source, iph->daddr, th->dest, inet_iif(skb));
if (!sk)
goto no_tcp_socket;