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Message-Id: <11951338543774-git-send-email-ilpo.jarvinen@helsinki.fi> Date: Thu, 15 Nov 2007 15:37:30 +0200 From: "Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi> To: David Miller <davem@...emloft.net> Cc: netdev@...r.kernel.org Subject: [PATCH 06/10] [TCP]: Prior_fackets can be replaced by highest_sack seq Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi> --- net/ipv4/tcp_input.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index b7af304..29fff81 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1251,7 +1251,6 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ struct sk_buff *cached_skb; int num_sacks = (ptr[1] - TCPOLEN_SACK_BASE)>>3; int reord = tp->packets_out; - int prior_fackets; int flag = 0; int found_dup_sack = 0; int cached_fack_count; @@ -1264,7 +1263,6 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ tp->fackets_out = 0; tp->highest_sack = tcp_write_queue_head(sk); } - prior_fackets = tp->fackets_out; found_dup_sack = tcp_check_dsack(tp, ack_skb, sp, num_sacks, prior_snd_una); @@ -1457,7 +1455,8 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ /* New sack for not retransmitted frame, * which was in hole. It is reordering. */ - if (fack_count < prior_fackets) + if (before(TCP_SKB_CB(skb)->seq, + tcp_highest_sack_seq(tp))) reord = min(fack_count, reord); /* SACK enhanced F-RTO (RFC4138; Appendix B) */ -- 1.5.0.6 - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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