diff options
| author | David S. Miller <davem@davemloft.net> | 2020-04-30 13:24:01 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-30 13:24:01 -0700 |
| commit | 1b2e788490deef5e570ebe604b5cc50f82877c11 (patch) | |
| tree | 2160cfb6274072fcc4350afbbd5aa7ebf1580a4c /net/ipv4/tcp_output.c | |
| parent | 3857c776240f0edef8639d7833626ab2ee7c7723 (diff) | |
| parent | a70437cc09a11771870e9f6bfc0ba1237161daa8 (diff) | |
Merge branch 'tcp-sack-compression-changes'
Eric Dumazet says:
====================
tcp: sack compression changes
Patch series refines SACK compression.
We had issues with missing SACK when TCP option space is tight.
Uses hrtimer slack to improve performance.
====================
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 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index ba4482130f08..c414aeb1efa9 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -184,10 +184,10 @@ static inline void tcp_event_ack_sent(struct sock *sk, unsigned int pkts, { struct tcp_sock *tp = tcp_sk(sk); - if (unlikely(tp->compressed_ack > TCP_FASTRETRANS_THRESH)) { + if (unlikely(tp->compressed_ack)) { NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPACKCOMPRESSED, - tp->compressed_ack - TCP_FASTRETRANS_THRESH); - tp->compressed_ack = TCP_FASTRETRANS_THRESH; + tp->compressed_ack); + tp->compressed_ack = 0; if (hrtimer_try_to_cancel(&tp->compressed_ack_timer) == 1) __sock_put(sk); } |