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| author |   Ingo Molnar <mingo@elte.hu> | 2011-03-09 10:38:55 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-03-09 10:38:59 +0100 |
| commit | c8b44163b754612fc4769fe1c5df00e98fc9d3c6 (patch) | |
| tree | 77706ff1f2a72ed294885b6cf0a7c0de0f92d6df /net/ipv4/tcp_input.c | |
| parent | x86: Really print supported CPUs if PROCESSOR_SELECT=y (diff) | |
| parent | Linux 2.6.38-rc8 (diff) | |
| download | wireguard-linux-c8b44163b754612fc4769fe1c5df00e98fc9d3c6.tar.xz wireguard-linux-c8b44163b754612fc4769fe1c5df00e98fc9d3c6.zip | |
Merge commit 'v2.6.38-rc8' into x86/asm
Merge reason: Update with the latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to '')
| -rw-r--r-- | net/ipv4/tcp_input.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index eb7f82ebf4a3..65f6c0406245 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1222,7 +1222,7 @@ static int tcp_check_dsack(struct sock *sk, struct sk_buff *ack_skb, } /* D-SACK for already forgotten data... Do dumb counting. */ - if (dup_sack && + if (dup_sack && tp->undo_marker && tp->undo_retrans && !after(end_seq_0, prior_snd_una) && after(end_seq_0, tp->undo_marker)) tp->undo_retrans--; @@ -1299,7 +1299,8 @@ static u8 tcp_sacktag_one(struct sk_buff *skb, struct sock *sk, /* Account D-SACK for retransmitted packet. */ if (dup_sack && (sacked & TCPCB_RETRANS)) { - if (after(TCP_SKB_CB(skb)->end_seq, tp->undo_marker)) + if (tp->undo_marker && tp->undo_retrans && + after(TCP_SKB_CB(skb)->end_seq, tp->undo_marker)) tp->undo_retrans--; if (sacked & TCPCB_SACKED_ACKED) state->reord = min(fack_count, state->reord); |