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Message-Id: <1209424951-13450-2-git-send-email-johnwheffner@gmail.com> Date: Mon, 28 Apr 2008 16:22:31 -0700 From: John Heffner <johnwheffner@...il.com> To: davem@...emloft.net Cc: netdev@...r.kernel.org, John Heffner <johnwheffner@...il.com> Subject: [PATCH 2/2] [NET]: Limit cwnd growth when deferring for GSO This fixes inappropriately large cwnd growth on sender-limited flows when GSO is enabled, limiting cwnd growth to 64k. Signed-off-by: John Heffner <johnwheffner@...il.com> --- net/ipv4/tcp_cong.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index bfb1996..6a25082 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c @@ -287,7 +287,8 @@ int tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight) left = tp->snd_cwnd - in_flight; if (sk_can_gso(sk) && - left * sysctl_tcp_tso_win_divisor < tp->snd_cwnd) + left * sysctl_tcp_tso_win_divisor < tp->snd_cwnd && + left * tp->mss_cache < sk->sk_gso_max_size) return 1; return left <= tcp_max_burst(tp); } -- 1.5.2.5 ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ -- 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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