diff options
| author | Ilpo Järvinen <[email protected]> | 2007-07-15 07:19:29 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2007-07-15 07:19:29 +0000 |
| commit | 0a9f2a467d8dacaf7e97469dba99ed2d07287d80 (patch) | |
| tree | 392b7ddccc4172a903147e6bf2217da6a8831c70 /net/ipv4/tcp_input.c | |
| parent | [IPV6]: Call inet6addr_chain notifiers on link down (diff) | |
| download | kernel-0a9f2a467d8dacaf7e97469dba99ed2d07287d80.tar.gz kernel-0a9f2a467d8dacaf7e97469dba99ed2d07287d80.zip | |
[TCP]: Verify the presence of RETRANS bit when leaving FRTO
For yet unknown reason, something cleared SACKED_RETRANS bit
underneath FRTO.
Signed-off-by: Ilpo Järvinen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 69f9f1ef3ef6..4e5884ac8f29 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1398,7 +1398,9 @@ static void tcp_enter_frto_loss(struct sock *sk, int allowed_segments, int flag) * waiting for the first ACK and did not get it)... */ if ((tp->frto_counter == 1) && !(flag&FLAG_DATA_ACKED)) { - tp->retrans_out += tcp_skb_pcount(skb); + /* For some reason this R-bit might get cleared? */ + if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS) + tp->retrans_out += tcp_skb_pcount(skb); /* ...enter this if branch just for the first segment */ flag |= FLAG_DATA_ACKED; } else { |