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| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2007-10-01 15:27:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:53:58 -0700 |
| commit | dc86967b54aaf64fb053cce83c05a4476d48583b (patch) | |
| tree | a87709ce0ce71151e0c6de25304762b2f63c0e8b /net | |
| parent | 8336793baf962163c9fab5a3f39614295fdbab27 (diff) | |
| download | linux-3.10-dc86967b54aaf64fb053cce83c05a4476d48583b.tar.gz linux-3.10-dc86967b54aaf64fb053cce83c05a4476d48583b.tar.bz2 linux-3.10-dc86967b54aaf64fb053cce83c05a4476d48583b.zip | |
[TCP]: No fackets_out/highest_sack tuning when SACK isn't enabled
This was found due to bug report from Cedric Le Goater though
it turned this turned out to be unrelated bug.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp_output.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 94c80113df7..6199abeb0f5 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -660,7 +660,7 @@ static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned static void tcp_adjust_fackets_out(struct tcp_sock *tp, struct sk_buff *skb, int decr) { - if (!tp->sacked_out) + if (!tp->sacked_out || tcp_is_reno(tp)) return; if (!before(tp->highest_sack, TCP_SKB_CB(skb)->seq)) @@ -712,7 +712,8 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss TCP_SKB_CB(buff)->end_seq = TCP_SKB_CB(skb)->end_seq; TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(buff)->seq; - if (tp->sacked_out && (TCP_SKB_CB(skb)->seq == tp->highest_sack)) + if (tcp_is_sack(tp) && tp->sacked_out && + (TCP_SKB_CB(skb)->seq == tp->highest_sack)) tp->highest_sack = TCP_SKB_CB(buff)->seq; /* PSH and FIN should only be set in the second packet. */ @@ -1718,7 +1719,7 @@ static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *skb, int m BUG_ON(tcp_skb_pcount(skb) != 1 || tcp_skb_pcount(next_skb) != 1); - if (WARN_ON(tp->sacked_out && + if (WARN_ON(tcp_is_sack(tp) && tp->sacked_out && (TCP_SKB_CB(next_skb)->seq == tp->highest_sack))) return; |