Re: [PATCH net-next 01/15] tcp: use tp->tcp_mstamp in output path

2017-05-17 Thread Soheil Hassas Yeganeh
On Tue, May 16, 2017 at 5:00 PM, Eric Dumazet wrote: > 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. > > Sign

[PATCH net-next 01/15] tcp: use tp->tcp_mstamp in output path

2017-05-16 Thread Eric Dumazet
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 --- net/ipv4/tcp_ipv4.c | 1 + net/