Commit:     16e906812f885cf16d95577dba260db6375ba571
Parent:     4953f0fcc06a125f87874743d968c0e185c8b296
Author:     Ilpo Järvinen <[EMAIL PROTECTED]>
AuthorDate: Thu Oct 11 17:32:31 2007 -0700
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Thu Oct 11 17:32:31 2007 -0700

    [TCP]: Add bytes_acked (ABC) clearing to FRTO too
    I was reading tcp_enter_loss while looking for Cedric's bug and
    noticed bytes_acked adjustment is missing from FRTO side.
    Since bytes_acked will only be used in tcp_cong_avoid, I think
    it's safe to assume RTO would be spurious. During FRTO cwnd
    will be not controlled by tcp_cong_avoid and if FRTO calls for
    conventional recovery, cwnd is adjusted and the result of wrong
    assumption is cleared from bytes_acked. If RTO was in fact
    spurious, we did normal ABC already and can continue without
    any additional adjustments.
    Signed-off-by: Ilpo Järvinen <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
 net/ipv4/tcp_input.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 101054c..e40857e 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1687,6 +1687,7 @@ static void tcp_enter_frto_loss(struct sock *sk, int 
allowed_segments, int flag)
        tp->snd_cwnd_cnt = 0;
        tp->snd_cwnd_stamp = tcp_time_stamp;
        tp->frto_counter = 0;
+       tp->bytes_acked = 0;
        tp->reordering = min_t(unsigned int, tp->reordering,
@@ -2824,6 +2825,7 @@ static void tcp_conservative_spur_to_response(struct 
tcp_sock *tp)
        tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
        tp->snd_cwnd_cnt = 0;
+       tp->bytes_acked = 0;
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at

Reply via email to