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tcp: use tcp_jiffies32 to feed tp->lsndtime

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Use tcp_jiffies32 instead of tcp_time_stamp to feed
tp->lsndtime.

tcp_time_stamp will soon be a litle bit more expensive
than simply reading 'jiffies'.

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>
This commit is contained in:
Eric Dumazet
2017-05-16 14:00:03 -07:00
committed by David S. Miller
parent d011b9a448
commit d635fbe27e
6 changed files with 9 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
net/ipv4/tcp_output.c
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@@ -160,7 +160,7 @@ static void tcp_event_data_sent(struct tcp_sock *tp,
struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
const u32 now = tcp_time_stamp;
const u32 now = tcp_jiffies32;
if (tcp_packets_in_flight(tp) == 0)
tcp_ca_event(sk, CA_EVENT_TX_START);
@@ -1918,7 +1918,7 @@ static bool tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb,
/* Avoid bursty behavior by allowing defer
* only if the last write was recent.
*/
if ((s32)(tcp_time_stamp - tp->lsndtime) > 0)
if ((s32)(tcp_jiffies32 - tp->lsndtime) > 0)
goto send_now;
in_flight = tcp_packets_in_flight(tp);