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| author | John Heffner <johnwheffner@gmail.com> | 2008-04-29 03:13:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-29 03:13:02 -0700 |
| commit | ce447eb91409225f8a488f6b7b2a1bdf7b2d884f (patch) | |
| tree | e47dc116d1ba834c9a568133cfb7855bdb493950 | |
| parent | d0313587547092af7f5ee8a576793e1e5d61be89 (diff) | |
| download | linux-ce447eb91409225f8a488f6b7b2a1bdf7b2d884f.tar.gz linux-ce447eb91409225f8a488f6b7b2a1bdf7b2d884f.tar.bz2 linux-ce447eb91409225f8a488f6b7b2a1bdf7b2d884f.zip | |
tcp: Allow send-limited cwnd to grow up to max_burst when gso disabled
This changes the logic in tcp_is_cwnd_limited() so that cwnd may grow
up to tcp_max_burst() even when sk_can_gso() is false, or when
sysctl_tcp_tso_win_divisor != 0.
Signed-off-by: John Heffner <johnwheffner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/tcp_cong.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index 3a6be23d222f..bfb1996bd99f 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c @@ -285,14 +285,11 @@ int tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight) if (in_flight >= tp->snd_cwnd) return 1; - if (!sk_can_gso(sk)) - return 0; - left = tp->snd_cwnd - in_flight; - if (sysctl_tcp_tso_win_divisor) - return left * sysctl_tcp_tso_win_divisor < tp->snd_cwnd; - else - return left <= tcp_max_burst(tp); + if (sk_can_gso(sk) && + left * sysctl_tcp_tso_win_divisor < tp->snd_cwnd) + return 1; + return left <= tcp_max_burst(tp); } EXPORT_SYMBOL_GPL(tcp_is_cwnd_limited); |