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authorEric Dumazet <eric.dumazet@gmail.com>2011-10-13 18:24:42 +0000
committerDavid S. Miller <davem@davemloft.net>2011-10-19 16:53:30 -0400
commit06a59ecb921de1d44efcf2cdf543bc689fe2e0d8 (patch)
treecfd9b3c5ce0e82941ebbe115ef069f19a4755457 /net
parentfddf86fc4699a5fbabe6b8bda67613dbd57cbe47 (diff)
downloadlinux-06a59ecb921de1d44efcf2cdf543bc689fe2e0d8.tar.bz2
tcp: use TCP_INIT_CWND in tcp_fixup_sndbuf()
Initial cwnd being 10 (TCP_INIT_CWND) instead of 3, change tcp_fixup_sndbuf() to get more than 16384 bytes (sysctl_tcp_wmem[1]) in initial sk_sndbuf Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_input.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c1653fe47255..1e848b26c2b9 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -267,11 +267,9 @@ static void tcp_fixup_sndbuf(struct sock *sk)
{
int sndmem = SKB_TRUESIZE(tcp_sk(sk)->rx_opt.mss_clamp + MAX_TCP_HEADER);
- if (sk->sk_sndbuf < 3 * sndmem) {
- sk->sk_sndbuf = 3 * sndmem;
- if (sk->sk_sndbuf > sysctl_tcp_wmem[2])
- sk->sk_sndbuf = sysctl_tcp_wmem[2];
- }
+ sndmem *= TCP_INIT_CWND;
+ if (sk->sk_sndbuf < sndmem)
+ sk->sk_sndbuf = min(sndmem, sysctl_tcp_wmem[2]);
}
/* 2. Tuning advertised window (window_clamp, rcv_ssthresh)