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[TCP] tcp_vegas: Fix slow start
author
Thomas Young
<tyo@ee.mu.oz.au>
Wed, 4 Jan 2006 21:59:32 +0000
(13:59 -0800)
committer
David S. Miller
<davem@davemloft.net>
Wed, 4 Jan 2006 21:59:32 +0000
(13:59 -0800)
Vegas' slow start was only adding one MSS per RTT rather than one for
every ack. Slow start behavior should now match Reno.
Signed-off-by: Thomas Young <tyo@ee.mu.oz.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_vegas.c
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diff --git
a/net/ipv4/tcp_vegas.c
b/net/ipv4/tcp_vegas.c
index 13e7e6e8df161ef009250b58c520717dfdf153cc..3b7403495052e31efb9bbaa4c33e740fd99685f2 100644
(file)
--- a/
net/ipv4/tcp_vegas.c
+++ b/
net/ipv4/tcp_vegas.c
@@
-330,6
+330,10
@@
static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack,
vegas->cntRTT = 0;
vegas->minRTT = 0x7fffffff;
}
+ /* Use normal slow start */
+ else if (tp->snd_cwnd <= tp->snd_ssthresh)
+ tcp_slow_start(tp);
+
}
/* Extract info for Tcp socket info provided via netlink. */