From: Adrian Bunk <bunk@kernel.org>
Date: Fri, 12 Oct 2007 21:03:25 +0000 (+0200)
Subject: Revert "TCP: Fix TCP handling of SACK in bidirectional flows"
X-Git-Tag: v2.6.16.55~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3a05e4826e0ec19fa9f805e81ea3589887922d9d;p=karo-tx-linux.git

Revert "TCP: Fix TCP handling of SACK in bidirectional flows"

This reverts commit 3198d0f16dec0c87071cf26f3f11af9c8f0a009b.
---

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index cdeca2d5c115..412e3d214d7c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1909,10 +1909,7 @@ tcp_fastretrans_alert(struct sock *sk, u32 prior_snd_una,
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
-	int is_dupack = (tp->snd_una == prior_snd_una &&
-			 (!(flag&FLAG_NOT_DUP) ||
-			  ((flag&FLAG_DATA_SACKED) &&
-			   (tp->fackets_out > tp->reordering))));
+	int is_dupack = (tp->snd_una == prior_snd_una && !(flag&FLAG_NOT_DUP));
 
 	/* Some technical things:
 	 * 1. Reno does not count dupacks (sacked_out) automatically. */