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| author | Eric Dumazet | 2014-03-10 01:36:02 +0100 |
|---|---|---|
| committer | David S. Miller | 2014-03-10 21:15:54 +0100 |
| commit | 431a91242d8d7876d33ab91b1f3ccdcd56b14f66 (patch) | |
| tree | 3469a5bca9cc5ee4c3397eb9b19fe2ca2e8f6c18 /net/ipv4/tcp_input.c | |
| parent | hyperv: Change the receive buffer size for legacy hosts (diff) | |
| download | kernel-qcow2-linux-431a91242d8d7876d33ab91b1f3ccdcd56b14f66.tar.gz kernel-qcow2-linux-431a91242d8d7876d33ab91b1f3ccdcd56b14f66.tar.xz kernel-qcow2-linux-431a91242d8d7876d33ab91b1f3ccdcd56b14f66.zip | |
tcp: timestamp SYN+DATA messages
All skb in socket write queue should be properly timestamped.
In case of FastOpen, we special case the SYN+DATA 'message' as we
queue in socket wrote queue the two fallback skbs:
1) SYN message by itself.
2) DATA segment by itself.
We should make sure these skbs have proper timestamps.
Add a WARN_ON_ONCE() to eventually catch future violations.
Fixes: 740b0f1841f6 ("tcp: switch rtt estimations to usec resolution")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index b99003f556d8..e1661f46fd19 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3067,6 +3067,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets, flag |= FLAG_RETRANS_DATA_ACKED; } else { last_ackt = skb->skb_mstamp; + WARN_ON_ONCE(last_ackt.v64 == 0); if (!first_ackt.v64) first_ackt = last_ackt; |