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| author | Pavel Emelyanov <xemul@openvz.org> | 2008-07-16 20:20:58 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-16 20:20:58 -0700 |
| commit | a86b1e3019455283a677c2485cfeda2dc36df3eb (patch) | |
| tree | 452f1ec6cba2a131d189be91a6f4ec1d50092827 /net/ipv4/tcp_ipv4.c | |
| parent | c5346fe396f5e22bbfb3ec037c43891c3c57d3e6 (diff) | |
| download | linux-stable-a86b1e3019455283a677c2485cfeda2dc36df3eb.tar.gz linux-stable-a86b1e3019455283a677c2485cfeda2dc36df3eb.tar.bz2 linux-stable-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.c | 10 |
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; |