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authorEric Dumazet <edumazet@google.com>2017-05-16 14:00:00 -0700
committerDavid S. Miller <davem@davemloft.net>2017-05-17 16:06:01 -0400
commit385e20706facd376f27863bd55b7cc7720d3f27b (patch)
treeb3e6e53158d3348cd6d6b7b473adfe2f1c5a8d6c /net/ipv4/tcp_recovery.c
parent9d4f97f97bb8adc47f569d995402c33de9a4fa19 (diff)
downloadop-kernel-dev-385e20706facd376f27863bd55b7cc7720d3f27b.zip
op-kernel-dev-385e20706facd376f27863bd55b7cc7720d3f27b.tar.gz
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.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/net/ipv4/tcp_recovery.c b/net/ipv4/tcp_recovery.c
index 362b8c7..cd72b3d 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) {
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