diff options
| author | Denis V. Lunev <den@openvz.org> | 2008-04-03 14:19:38 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-03 14:19:38 -0700 |
| commit | 14c0c8e8e0fb85e7a57e88606c009377746b39d9 (patch) | |
| tree | 1ec620ca94f56974f03107ac95673b4df889f5a5 /net/ipv4/tcp_ipv4.c | |
| parent | a4aa834a9165150252c5cd953faab4de29d51b87 (diff) | |
| download | blackbird-op-linux-14c0c8e8e0fb85e7a57e88606c009377746b39d9.tar.gz blackbird-op-linux-14c0c8e8e0fb85e7a57e88606c009377746b39d9.zip | |
[TCP]: Replace socket with sock for reset sending.
Replace tcp_socket with tcp_sock. This is more effective (less
derefferences on fast paths). Additionally, the approach is unified to
one used in ICMP.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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, 6 insertions, 4 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index ef141b841d2f..1d77f37d7708 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -89,7 +89,7 @@ int sysctl_tcp_low_latency __read_mostly; #define ICMP_MIN_LENGTH 8 /* Socket used for sending RSTs */ -static struct socket *tcp_socket __read_mostly; +static struct sock *tcp_sock __read_mostly; void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb); @@ -598,7 +598,7 @@ 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(tcp_socket->sk, skb, &arg, arg.iov[0].iov_len); + ip_send_reply(tcp_sock, skb, &arg, arg.iov[0].iov_len); TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); TCP_INC_STATS_BH(TCP_MIB_OUTRSTS); @@ -693,7 +693,7 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk, if (twsk) arg.bound_dev_if = twsk->tw_sk.tw_bound_dev_if; - ip_send_reply(tcp_socket->sk, skb, &arg, arg.iov[0].iov_len); + ip_send_reply(tcp_sock, skb, &arg, arg.iov[0].iov_len); TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); } @@ -2490,9 +2490,11 @@ struct proto tcp_prot = { void __init tcp_v4_init(void) { - if (inet_csk_ctl_sock_create(&tcp_socket, PF_INET, SOCK_RAW, + struct socket *__tcp_socket; + if (inet_csk_ctl_sock_create(&__tcp_socket, PF_INET, SOCK_RAW, IPPROTO_TCP) < 0) panic("Failed to create the TCP control socket.\n"); + tcp_sock = __tcp_socket->sk; } EXPORT_SYMBOL(ipv4_specific); |
