diff options
| author | Wei Wang <weiwan@google.com> | 2019-01-25 10:53:19 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-27 13:29:43 -0800 |
| commit | 31954cd8bb667030b1c0d3d77f28fe71f06999f9 (patch) | |
| tree | f00b43f2669ac70db625d8babe06e89cd0a731e2 /net/dccp/input.c | |
| parent | fb1b69999130e9800c4e341a2b0f0991cdd8fcfc (diff) | |
| download | lwn-31954cd8bb667030b1c0d3d77f28fe71f06999f9.tar.gz lwn-31954cd8bb667030b1c0d3d77f28fe71f06999f9.zip | |
tcp: Refactor pingpong code
Instead of using pingpong as a single bit information, we refactor the
code to treat it as a counter. When interactive session is detected,
we set pingpong count to TCP_PINGPONG_THRESH. And when pingpong count
is >= TCP_PINGPONG_THRESH, we consider the session in pingpong mode.
This patch is a pure refactor and sets foundation for the next patch.
This patch itself does not change any pingpong logic.
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/input.c')
| -rw-r--r-- | net/dccp/input.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dccp/input.c b/net/dccp/input.c index 85d6c879383d..8d03707abdac 100644 --- a/net/dccp/input.c +++ b/net/dccp/input.c @@ -480,7 +480,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk, sk_wake_async(sk, SOCK_WAKE_IO, POLL_OUT); } - if (sk->sk_write_pending || icsk->icsk_ack.pingpong || + if (sk->sk_write_pending || inet_csk_in_pingpong_mode(sk) || icsk->icsk_accept_queue.rskq_defer_accept) { /* Save one ACK. Data will be ready after * several ticks, if write_pending is set. |