diff options
| author | John Heffner <johnwheffner@gmail.com> | 2008-04-29 03:13:52 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-06-16 13:19:57 -0700 |
| commit | 413b0a22cad909f8cf86299ecf37d34df5d1eb38 (patch) | |
| tree | de85fc8fe4ce5a2ff7690c6ac04a74fcded8a049 /net | |
| parent | 73c00341a340bda4aea6a5d765686e37d9f23441 (diff) | |
tcp: Limit cwnd growth when deferring for GSO
[ upstream commit: 246eb2af060fc32650f07203c02bdc0456ad76c7 ]
This fixes inappropriately large cwnd growth on sender-limited flows
when GSO is enabled, limiting cwnd growth to 64k.
[ Backport to 2.6.25 by replacing sk->sk_gso_max_size with 65536 -DaveM ]
Signed-off-by: John Heffner <johnwheffner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'net')
| -rw-r--r-- | 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 bfb1996bd99f..fde71461e227 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 < 65536) return 1; return left <= tcp_max_burst(tp); } |