diff options
-rw-r--r-- | include/net/tcp.h | 1 | ||||
-rw-r--r-- | net/ipv4/tcp_input.c | 17 | ||||
-rw-r--r-- | net/ipv4/tcp_output.c | 15 |
3 files changed, 8 insertions, 25 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 9416236cc395..b19238027da8 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, | |||
848 | 848 | ||
849 | /* tcp_output.c */ | 849 | /* tcp_output.c */ |
850 | 850 | ||
851 | extern void __tcp_data_snd_check(struct sock *sk, struct sk_buff *skb); | ||
852 | extern void __tcp_push_pending_frames(struct sock *sk, struct tcp_sock *tp, | 851 | extern void __tcp_push_pending_frames(struct sock *sk, struct tcp_sock *tp, |
853 | unsigned int cur_mss, int nonagle); | 852 | unsigned int cur_mss, int nonagle); |
854 | extern int tcp_may_send_now(struct sock *sk, struct tcp_sock *tp); | 853 | 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 577424323d59..b27be2f819ac 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) | |||
3346 | } | 3346 | } |
3347 | } | 3347 | } |
3348 | 3348 | ||
3349 | static __inline__ void tcp_data_snd_check(struct sock *sk) | 3349 | static __inline__ void tcp_data_snd_check(struct sock *sk, struct tcp_sock *tp) |
3350 | { | 3350 | { |
3351 | struct sk_buff *skb = sk->sk_send_head; | 3351 | tcp_push_pending_frames(sk, tp); |
3352 | |||
3353 | if (skb != NULL) | ||
3354 | __tcp_data_snd_check(sk, skb); | ||
3355 | tcp_check_space(sk); | 3352 | tcp_check_space(sk); |
3356 | } | 3353 | } |
3357 | 3354 | ||
@@ -3645,7 +3642,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb, | |||
3645 | */ | 3642 | */ |
3646 | tcp_ack(sk, skb, 0); | 3643 | tcp_ack(sk, skb, 0); |
3647 | __kfree_skb(skb); | 3644 | __kfree_skb(skb); |
3648 | tcp_data_snd_check(sk); | 3645 | tcp_data_snd_check(sk, tp); |
3649 | return 0; | 3646 | return 0; |
3650 | } else { /* Header too small */ | 3647 | } else { /* Header too small */ |
3651 | TCP_INC_STATS_BH(TCP_MIB_INERRS); | 3648 | TCP_INC_STATS_BH(TCP_MIB_INERRS); |
@@ -3711,7 +3708,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb, | |||
3711 | if (TCP_SKB_CB(skb)->ack_seq != tp->snd_una) { | 3708 | if (TCP_SKB_CB(skb)->ack_seq != tp->snd_una) { |
3712 | /* Well, only one small jumplet in fast path... */ | 3709 | /* Well, only one small jumplet in fast path... */ |
3713 | tcp_ack(sk, skb, FLAG_DATA); | 3710 | tcp_ack(sk, skb, FLAG_DATA); |
3714 | tcp_data_snd_check(sk); | 3711 | tcp_data_snd_check(sk, tp); |
3715 | if (!tcp_ack_scheduled(tp)) | 3712 | if (!tcp_ack_scheduled(tp)) |
3716 | goto no_ack; | 3713 | goto no_ack; |
3717 | } | 3714 | } |
@@ -3789,7 +3786,7 @@ step5: | |||
3789 | /* step 7: process the segment text */ | 3786 | /* step 7: process the segment text */ |
3790 | tcp_data_queue(sk, skb); | 3787 | tcp_data_queue(sk, skb); |
3791 | 3788 | ||
3792 | tcp_data_snd_check(sk); | 3789 | tcp_data_snd_check(sk, tp); |
3793 | tcp_ack_snd_check(sk); | 3790 | tcp_ack_snd_check(sk); |
3794 | return 0; | 3791 | return 0; |
3795 | 3792 | ||
@@ -4099,7 +4096,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, | |||
4099 | /* Do step6 onward by hand. */ | 4096 | /* Do step6 onward by hand. */ |
4100 | tcp_urg(sk, skb, th); | 4097 | tcp_urg(sk, skb, th); |
4101 | __kfree_skb(skb); | 4098 | __kfree_skb(skb); |
4102 | tcp_data_snd_check(sk); | 4099 | tcp_data_snd_check(sk, tp); |
4103 | return 0; | 4100 | return 0; |
4104 | } | 4101 | } |
4105 | 4102 | ||
@@ -4290,7 +4287,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, | |||
4290 | 4287 | ||
4291 | /* tcp_data could move socket to TIME-WAIT */ | 4288 | /* tcp_data could move socket to TIME-WAIT */ |
4292 | if (sk->sk_state != TCP_CLOSE) { | 4289 | if (sk->sk_state != TCP_CLOSE) { |
4293 | tcp_data_snd_check(sk); | 4290 | tcp_data_snd_check(sk, tp); |
4294 | tcp_ack_snd_check(sk); | 4291 | tcp_ack_snd_check(sk); |
4295 | } | 4292 | } |
4296 | 4293 | ||
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index e292e11c7319..ce1d7cfbecfc 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, | |||
894 | struct sk_buff *skb = sk->sk_send_head; | 894 | struct sk_buff *skb = sk->sk_send_head; |
895 | 895 | ||
896 | if (skb) { | 896 | if (skb) { |
897 | if (!tcp_skb_is_last(sk, skb)) | 897 | if (tcp_write_xmit(sk, cur_mss, nonagle)) |
898 | nonagle = TCP_NAGLE_PUSH; | ||
899 | if (!tcp_snd_test(sk, skb, cur_mss, nonagle) || | ||
900 | tcp_write_xmit(sk, cur_mss, nonagle)) | ||
901 | tcp_check_probe_timer(sk, tp); | 898 | tcp_check_probe_timer(sk, tp); |
902 | } | 899 | } |
903 | } | 900 | } |
904 | 901 | ||
905 | void __tcp_data_snd_check(struct sock *sk, struct sk_buff *skb) | ||
906 | { | ||
907 | struct tcp_sock *tp = tcp_sk(sk); | ||
908 | |||
909 | if (after(TCP_SKB_CB(skb)->end_seq, tp->snd_una + tp->snd_wnd) || | ||
910 | tcp_packets_in_flight(tp) >= tp->snd_cwnd || | ||
911 | tcp_write_xmit(sk, tcp_current_mss(sk, 1), tp->nonagle)) | ||
912 | tcp_check_probe_timer(sk, tp); | ||
913 | } | ||
914 | |||
915 | /* This function returns the amount that we can raise the | 902 | /* This function returns the amount that we can raise the |
916 | * usable window based on the following constraints | 903 | * usable window based on the following constraints |
917 | * | 904 | * |