From d0410051164bbbc597e15f068b53c06a954ae0d4 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ilpo=20J=C3=A4rvinen?= Date: Mon, 2 Jul 2007 22:07:22 -0700 Subject: [PATCH] [TCP]: SACK fastpath did override adjusted fackets_out MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Do same adjustment to SACK fastpath counters provided that they're valid. Signed-off-by: Ilpo Järvinen Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 53232dd6fb4..20aea1595c4 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -699,6 +699,14 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss tp->fackets_out -= diff; if ((int)tp->fackets_out < 0) tp->fackets_out = 0; + /* SACK fastpath might overwrite it unless dealt with */ + if (tp->fastpath_skb_hint != NULL && + after(TCP_SKB_CB(tp->fastpath_skb_hint)->seq, + TCP_SKB_CB(skb)->seq)) { + tp->fastpath_cnt_hint -= diff; + if ((int)tp->fastpath_cnt_hint < 0) + tp->fastpath_cnt_hint = 0; + } } } -- 2.41.1