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tcp_westwood: use tcp_jiffies32 instead of tcp_time_stamp 

This CC does not need 1 ms tcp_time_stamp and can use
the jiffy based 'timestamp'.

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 14:00:11 -07:00 committed by David S. Miller
parent 594208afe4
commit ad5ad69e6b
1 changed files with 3 additions and 3 deletions
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6
net/ipv4/tcp_westwood.c
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@ -68,7 +68,7 @@ static void tcp_westwood_init(struct sock *sk)
w->cumul_ack = 0;
w->reset_rtt_min = 1;
w->rtt_min = w->rtt = TCP_WESTWOOD_INIT_RTT;
w->rtt_win_sx = tcp_time_stamp;
w->rtt_win_sx = tcp_jiffies32;
w->snd_una = tcp_sk(sk)->snd_una;
w->first_ack = 1;
}
@ -116,7 +116,7 @@ static void tcp_westwood_pkts_acked(struct sock *sk,
static void westwood_update_window(struct sock *sk)
{
struct westwood *w = inet_csk_ca(sk);
s32 delta = tcp_time_stamp - w->rtt_win_sx;
s32 delta = tcp_jiffies32 - w->rtt_win_sx;
/* Initialize w->snd_una with the first acked sequence number in order
* to fix mismatch between tp->snd_una and w->snd_una for the first
@ -140,7 +140,7 @@ static void westwood_update_window(struct sock *sk)
westwood_filter(w, delta);
w->bk = 0;
w->rtt_win_sx = tcp_time_stamp;
w->rtt_win_sx = tcp_jiffies32;
}
}