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| author | David S. Miller <davem@davemloft.net> | 2005-07-05 15:20:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-07-05 15:20:55 -0700 |
| commit | cb83199a29dc0408423d6df432f28cc67fcadaf4 (patch) | |
| tree | 3f6101b6657da5131d19a507ae264675799527df | |
| parent | a56476962e92a6c389a1a561274d4a27607b7b5f (diff) | |
| download | linux-3.10-cb83199a29dc0408423d6df432f28cc67fcadaf4.tar.gz linux-3.10-cb83199a29dc0408423d6df432f28cc67fcadaf4.tar.bz2 linux-3.10-cb83199a29dc0408423d6df432f28cc67fcadaf4.zip | |
[TCP]: Do not call tcp_tso_acked() if no work to do.
In tcp_clean_rtx_queue(), if the TSO packet is not even partially
acked, do not waste time calling tcp_tso_acked().
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/tcp_input.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 1dba7fd438d..b948e4eb39b 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2038,7 +2038,8 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p, s32 *seq_usrtt * the other end. */ if (after(scb->end_seq, tp->snd_una)) { - if (tcp_skb_pcount(skb) > 1) + if (tcp_skb_pcount(skb) > 1 && + after(tp->snd_una, scb->seq)) acked |= tcp_tso_acked(sk, skb, now, &seq_rtt); break; |