diff options
| author | Tony Luck <tony.luck@intel.com> | 2005-10-20 10:41:44 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-10-20 10:41:44 -0700 |
| commit | 9cec58dc138d6fcad9f447a19c8ff69f6540e667 (patch) | |
| tree | 4fe1cca94fdba8b705c87615bee06d3346f687ce /net/ipv4/tcp_output.c | |
| parent | 17e5ad6c0ce5a970e2830d0de8bdd60a2f077d38 (diff) | |
| parent | ac9b9c667c2e1194e22ebe0a441ae1c37aaa9b90 (diff) | |
Update from upstream with manual merge of Yasunori Goto's
changes to swiotlb.c made in commit 281dd25cdc0d6903929b79183816d151ea626341
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index c10e4435e3b1..7114031fdc70 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -190,7 +190,7 @@ void tcp_select_initial_window(int __space, __u32 mss, } /* Set initial window to value enough for senders, - * following RFC1414. Senders, not following this RFC, + * following RFC2414. Senders, not following this RFC, * will be satisfied with 2. */ if (mss > (1<<*rcv_wscale)) { @@ -435,6 +435,17 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss int nsize, old_factor; u16 flags; + if (unlikely(len >= skb->len)) { + if (net_ratelimit()) { + printk(KERN_DEBUG "TCP: seg_size=%u, mss=%u, seq=%u, " + "end_seq=%u, skb->len=%u.\n", len, mss_now, + TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq, + skb->len); + WARN_ON(1); + } + return 0; + } + nsize = skb_headlen(skb) - len; if (nsize < 0) nsize = 0; @@ -459,9 +470,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss flags = TCP_SKB_CB(skb)->flags; TCP_SKB_CB(skb)->flags = flags & ~(TCPCB_FLAG_FIN|TCPCB_FLAG_PSH); TCP_SKB_CB(buff)->flags = flags; - TCP_SKB_CB(buff)->sacked = - (TCP_SKB_CB(skb)->sacked & - (TCPCB_LOST | TCPCB_EVER_RETRANS | TCPCB_AT_TAIL)); + TCP_SKB_CB(buff)->sacked = TCP_SKB_CB(skb)->sacked; TCP_SKB_CB(skb)->sacked &= ~TCPCB_AT_TAIL; if (!skb_shinfo(skb)->nr_frags && skb->ip_summed != CHECKSUM_HW) { @@ -499,11 +508,26 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss tcp_skb_pcount(buff); tp->packets_out -= diff; + + if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED) + tp->sacked_out -= diff; + if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS) + tp->retrans_out -= diff; + if (TCP_SKB_CB(skb)->sacked & TCPCB_LOST) { tp->lost_out -= diff; tp->left_out -= diff; } + if (diff > 0) { + /* Adjust Reno SACK estimate. */ + if (!tp->rx_opt.sack_ok) { + tp->sacked_out -= diff; + if ((int)tp->sacked_out < 0) + tp->sacked_out = 0; + tcp_sync_left_out(tp); + } + tp->fackets_out -= diff; if ((int)tp->fackets_out < 0) tp->fackets_out = 0; @@ -1595,7 +1619,7 @@ void tcp_send_fin(struct sock *sk) * was unread data in the receive queue. This behavior is recommended * by draft-ietf-tcpimpl-prob-03.txt section 3.10. -DaveM */ -void tcp_send_active_reset(struct sock *sk, unsigned int __nocast priority) +void tcp_send_active_reset(struct sock *sk, gfp_t priority) { struct tcp_sock *tp = tcp_sk(sk); struct sk_buff *skb; |