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 <[EMAIL PROTECTED]>
---
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 2a5881c..9d47870 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);
}
@@ -2493,9 +2493,11 @@ 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);
--
1.5.3.rc5
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