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| author | Eric Dumazet <edumazet@google.com> | 2017-10-26 21:55:08 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-27 16:35:43 +0900 |
| commit | 0c12654ac6d9004b9538b2a969b2b59e9a5ed831 (patch) | |
| tree | 3e4254c0dd76f695a78741e9662f9ecd4337d489 /net/ipv4/tcp_input.c | |
| parent | 6496f6bde0c323fba5e8c5b5cbf3a7bf28dad7ed (diff) | |
| download | linux-0c12654ac6d9004b9538b2a969b2b59e9a5ed831.tar.gz linux-0c12654ac6d9004b9538b2a969b2b59e9a5ed831.tar.bz2 linux-0c12654ac6d9004b9538b2a969b2b59e9a5ed831.zip | |
tcp: Namespace-ify sysctl_tcp_app_win
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index fd77037ac800..6af4b58ac6d5 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -79,7 +79,6 @@ #include <linux/unaligned/access_ok.h> #include <linux/static_key.h> -int sysctl_tcp_app_win __read_mostly = 31; int sysctl_tcp_adv_win_scale __read_mostly = 1; EXPORT_SYMBOL(sysctl_tcp_adv_win_scale); @@ -428,6 +427,7 @@ static void tcp_fixup_rcvbuf(struct sock *sk) */ void tcp_init_buffer_space(struct sock *sk) { + int tcp_app_win = sock_net(sk)->ipv4.sysctl_tcp_app_win; struct tcp_sock *tp = tcp_sk(sk); int maxwin; @@ -446,14 +446,14 @@ void tcp_init_buffer_space(struct sock *sk) if (tp->window_clamp >= maxwin) { tp->window_clamp = maxwin; - if (sysctl_tcp_app_win && maxwin > 4 * tp->advmss) + if (tcp_app_win && maxwin > 4 * tp->advmss) tp->window_clamp = max(maxwin - - (maxwin >> sysctl_tcp_app_win), + (maxwin >> tcp_app_win), 4 * tp->advmss); } /* Force reservation of one segment. */ - if (sysctl_tcp_app_win && + if (tcp_app_win && tp->window_clamp > 2 * tp->advmss && tp->window_clamp + tp->advmss > maxwin) tp->window_clamp = max(2 * tp->advmss, maxwin - tp->advmss); |