tree b3e6e53158d3348cd6d6b7b473adfe2f1c5a8d6c
parent 9d4f97f97bb8adc47f569d995402c33de9a4fa19
author Eric Dumazet <edumazet@google.com> 1494968400 -0700
committer David S. Miller <davem@davemloft.net> 1495051561 -0400

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>