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| author | Eric Dumazet <edumazet@google.com> | 2017-05-16 14:00:00 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-17 16:06:01 -0400 |
| commit | 385e20706facd376f27863bd55b7cc7720d3f27b (patch) | |
| tree | b3e6e53158d3348cd6d6b7b473adfe2f1c5a8d6c /net/ipv4/tcp_recovery.c | |
| parent | 9d4f97f97bb8adc47f569d995402c33de9a4fa19 (diff) | |
| download | linux-stable-385e20706facd376f27863bd55b7cc7720d3f27b.tar.gz linux-stable-385e20706facd376f27863bd55b7cc7720d3f27b.tar.bz2 linux-stable-385e20706facd376f27863bd55b7cc7720d3f27b.zip | |
tcp: use tp->tcp_mstamp in output path
Idea is to later convert tp->tcp_mstamp to a full u64 counter
using usec resolution, so that we can later have fine
grained TCP TS clock (RFC 7323), regardless of HZ value.
We try to refresh tp->tcp_mstamp only when necessary.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_recovery.c')
| -rw-r--r-- | net/ipv4/tcp_recovery.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/net/ipv4/tcp_recovery.c b/net/ipv4/tcp_recovery.c index 362b8c75bfab..cd72b3d3879e 100644 --- a/net/ipv4/tcp_recovery.c +++ b/net/ipv4/tcp_recovery.c @@ -166,7 +166,6 @@ void tcp_rack_reo_timeout(struct sock *sk) u32 timeout, prior_inflight; prior_inflight = tcp_packets_in_flight(tp); - skb_mstamp_get(&tp->tcp_mstamp); tcp_rack_detect_loss(sk, &timeout); if (prior_inflight != tcp_packets_in_flight(tp)) { if (inet_csk(sk)->icsk_ca_state != TCP_CA_Recovery) { |