From: Eric Dumazet <edumazet@google.com>
Date: Sat, 2 Feb 2013 05:23:16 +0000 (+0000)
Subject: tcp: fix an infinite loop in tcp_slow_start()
X-Git-Tag: v3.8-rc7~2^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=973ec449bb4f2b8c514bacbcb4d9506fc31c8ce3;p=pandora-kernel.git

tcp: fix an infinite loop in tcp_slow_start()

Since commit 9dc274151a548 (tcp: fix ABC in tcp_slow_start()),
a nul snd_cwnd triggers an infinite loop in tcp_slow_start()

Avoid this infinite loop and log a one time error for further
analysis. FRTO code is suspected to cause this bug.

Reported-by: Pasi Kärkkäinen <pasik@iki.fi>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed