From a86b1e3019455283a677c2485cfeda2dc36df3eb Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Wed, 16 Jul 2008 20:20:58 -0700 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- net/ipv4/tcp_ipv4.c | 10 +++++++--- net/ipv6/tcp_ipv6.c | 3 ++- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 7797d52870..db3bf9be07 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; diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 30dbab7cc3..fc5f716620 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1617,6 +1617,7 @@ static int tcp_v6_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; @@ -1648,7 +1649,7 @@ static int tcp_v6_rcv(struct sk_buff *skb) TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(ipv6_hdr(skb)); TCP_SKB_CB(skb)->sacked = 0; - sk = __inet6_lookup(dev_net(skb->dev), &tcp_hashinfo, + sk = __inet6_lookup(net, &tcp_hashinfo, &ipv6_hdr(skb)->saddr, th->source, &ipv6_hdr(skb)->daddr, ntohs(th->dest), inet6_iif(skb)); -- 2.39.5