diff options
| author | Eric Dumazet | 2017-11-07 09:29:28 +0100 |
|---|---|---|
| committer | David S. Miller | 2017-11-10 06:34:58 +0100 |
| commit | 356d1833b638bd465672aefeb71def3ab93fc17d (patch) | |
| tree | 68354249261e8de8d367bfc21bb2969ecb9053d6 /net/ipv4/tcp_output.c | |
| parent | net: allow per netns sysctl_rmem and sysctl_wmem for protos (diff) | |
| download | kernel-qcow2-linux-356d1833b638bd465672aefeb71def3ab93fc17d.tar.gz kernel-qcow2-linux-356d1833b638bd465672aefeb71def3ab93fc17d.tar.xz kernel-qcow2-linux-356d1833b638bd465672aefeb71def3ab93fc17d.zip | |
tcp: Namespace-ify sysctl_tcp_rmem and sysctl_tcp_wmem
Note that when a new netns is created, it inherits its
sysctl_tcp_rmem and sysctl_tcp_wmem from initial netns.
This change is needed so that we can refine TCP rcvbuf autotuning,
to take RTT into consideration.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Wei Wang <weiwan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index a9d917e4dad5..9b98d35aa0d8 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -220,7 +220,7 @@ void tcp_select_initial_window(const struct sock *sk, int __space, __u32 mss, (*rcv_wscale) = 0; if (wscale_ok) { /* Set window scaling on max possible window */ - space = max_t(u32, space, sysctl_tcp_rmem[2]); + space = max_t(u32, space, sock_net(sk)->ipv4.sysctl_tcp_rmem[2]); space = max_t(u32, space, sysctl_rmem_max); space = min_t(u32, space, *window_clamp); while (space > U16_MAX && (*rcv_wscale) < TCP_MAX_WSCALE) { |