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| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2007-10-02 00:27:42 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 01:53:59 +0200 |
| commit | 95eacd27e2a0924f1435654c06712cee6be099ad (patch) | |
| tree | 4e044b983176ed0a3141d733c6d9ff6d61e954e2 /net/ipv4/tcp_input.c | |
| parent | [TCP]: No fackets_out/highest_sack tuning when SACK isn't enabled (diff) | |
| download | linux-95eacd27e2a0924f1435654c06712cee6be099ad.tar.xz linux-95eacd27e2a0924f1435654c06712cee6be099ad.zip | |
[TCP]: fix comments that got messed up during code move
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/ipv4/tcp_input.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 4b27739031fb..904289d2b6bb 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1467,8 +1467,9 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ return flag; } -/* F-RTO can only be used if TCP has never retransmitted anything other than - * head (SACK enhanced variant from Appendix B of RFC4138 is more robust here) +/* If we receive more dupacks than we expected counting segments + * in assumption of absent reordering, interpret this as reordering. + * The only another reason could be bug in receiver TCP. */ static void tcp_check_reno_reordering(struct sock *sk, const int addend) { @@ -1516,6 +1517,9 @@ static inline void tcp_reset_reno_sack(struct tcp_sock *tp) tp->sacked_out = 0; } +/* F-RTO can only be used if TCP has never retransmitted anything other than + * head (SACK enhanced variant from Appendix B of RFC4138 is more robust here) + */ int tcp_use_frto(struct sock *sk) { const struct tcp_sock *tp = tcp_sk(sk); |