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-rw-r--r--include/net/tcp.h1
-rw-r--r--net/ipv4/tcp_input.c17
-rw-r--r--net/ipv4/tcp_output.c15
3 files changed, 8 insertions, 25 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 9416236..b192380 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -848,7 +848,6 @@ extern __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb,
/* tcp_output.c */
-extern void __tcp_data_snd_check(struct sock *sk, struct sk_buff *skb);
extern void __tcp_push_pending_frames(struct sock *sk, struct tcp_sock *tp,
unsigned int cur_mss, int nonagle);
extern int tcp_may_send_now(struct sock *sk, struct tcp_sock *tp);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5774243..b27be2f 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3346,12 +3346,9 @@ static inline void tcp_check_space(struct sock *sk)
}
}
-static __inline__ void tcp_data_snd_check(struct sock *sk)
+static __inline__ void tcp_data_snd_check(struct sock *sk, struct tcp_sock *tp)
{
- struct sk_buff *skb = sk->sk_send_head;
-
- if (skb != NULL)
- __tcp_data_snd_check(sk, skb);
+ tcp_push_pending_frames(sk, tp);
tcp_check_space(sk);
}
@@ -3645,7 +3642,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
*/
tcp_ack(sk, skb, 0);
__kfree_skb(skb);
- tcp_data_snd_check(sk);
+ tcp_data_snd_check(sk, tp);
return 0;
} else { /* Header too small */
TCP_INC_STATS_BH(TCP_MIB_INERRS);
@@ -3711,7 +3708,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
if (TCP_SKB_CB(skb)->ack_seq != tp->snd_una) {
/* Well, only one small jumplet in fast path... */
tcp_ack(sk, skb, FLAG_DATA);
- tcp_data_snd_check(sk);
+ tcp_data_snd_check(sk, tp);
if (!tcp_ack_scheduled(tp))
goto no_ack;
}
@@ -3789,7 +3786,7 @@ step5:
/* step 7: process the segment text */
tcp_data_queue(sk, skb);
- tcp_data_snd_check(sk);
+ tcp_data_snd_check(sk, tp);
tcp_ack_snd_check(sk);
return 0;
@@ -4099,7 +4096,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
/* Do step6 onward by hand. */
tcp_urg(sk, skb, th);
__kfree_skb(skb);
- tcp_data_snd_check(sk);
+ tcp_data_snd_check(sk, tp);
return 0;
}
@@ -4290,7 +4287,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
/* tcp_data could move socket to TIME-WAIT */
if (sk->sk_state != TCP_CLOSE) {
- tcp_data_snd_check(sk);
+ tcp_data_snd_check(sk, tp);
tcp_ack_snd_check(sk);
}
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e292e11..ce1d7cf 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -894,24 +894,11 @@ void __tcp_push_pending_frames(struct sock *sk, struct tcp_sock *tp,
struct sk_buff *skb = sk->sk_send_head;
if (skb) {
- if (!tcp_skb_is_last(sk, skb))
- nonagle = TCP_NAGLE_PUSH;
- if (!tcp_snd_test(sk, skb, cur_mss, nonagle) ||
- tcp_write_xmit(sk, cur_mss, nonagle))
+ if (tcp_write_xmit(sk, cur_mss, nonagle))
tcp_check_probe_timer(sk, tp);
}
}
-void __tcp_data_snd_check(struct sock *sk, struct sk_buff *skb)
-{
- struct tcp_sock *tp = tcp_sk(sk);
-
- if (after(TCP_SKB_CB(skb)->end_seq, tp->snd_una + tp->snd_wnd) ||
- tcp_packets_in_flight(tp) >= tp->snd_cwnd ||
- tcp_write_xmit(sk, tcp_current_mss(sk, 1), tp->nonagle))
- tcp_check_probe_timer(sk, tp);
-}
-
/* This function returns the amount that we can raise the
* usable window based on the following constraints
*
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