diff options
| author |   Stefan Baranoff <sbaranoff@gmail.com> | 2018-07-10 17:31:10 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-12 14:33:45 -0700 |
| commit | 70b7ff130224d2d22a158c7f4aa5e7fb1c95949d (patch) | |
| tree | 40c2c3b49333960955008e2a5ac29752025a461e /net/ipv4/tcp.c | |
| parent | tcp: fix sequence numbers for repaired sockets re-using TIME-WAIT sockets (diff) | |
| download | linux-dev-70b7ff130224d2d22a158c7f4aa5e7fb1c95949d.tar.xz linux-dev-70b7ff130224d2d22a158c7f4aa5e7fb1c95949d.zip | |
tcp: allow user to create repair socket without window probes
Under rare conditions where repair code may be used it is possible that
window probes are either unnecessary or undesired. If the user knows that
window probes are not wanted or needed this change allows them to skip
sending them when a socket comes out of repair.
Signed-off-by: Stefan Baranoff <sbaranoff@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 0d43705dd001..8e5e2ca9ab1b 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2823,14 +2823,16 @@ static int do_tcp_setsockopt(struct sock *sk, int level, case TCP_REPAIR: if (!tcp_can_repair_sock(sk)) err = -EPERM; - else if (val == 1) { - tp->repair = 1; + /* 1 for normal repair, 2 for no window probes */ + else if (val == 1 || val == 2) { + tp->repair = val; sk->sk_reuse = SK_FORCE_REUSE; tp->repair_queue = TCP_NO_QUEUE; } else if (val == 0) { tp->repair = 0; sk->sk_reuse = SK_NO_REUSE; - tcp_send_window_probe(sk); + if (tp->repair == 1) + tcp_send_window_probe(sk); } else err = -EINVAL; |