diff options
| author |   David S. Miller <davem@davemloft.net> | 2018-07-03 10:26:50 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-03 10:29:26 +0900 |
| commit | 5cd3da4ba2397ef07226ca2aa5094ed21ff8198f (patch) | |
| tree | caa3c5968df02c296e9644a98c00e759d011b44c /net/ipv4/tcp_input.c | |
| parent | Merge branch 'hns3-a-few-code-improvements' (diff) | |
| parent | Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md (diff) | |
| download | linux-dev-5cd3da4ba2397ef07226ca2aa5094ed21ff8198f.tar.xz linux-dev-5cd3da4ba2397ef07226ca2aa5094ed21ff8198f.zip | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Simple overlapping changes in stmmac driver.
Adjust skb_gro_flush_final_remcsum function signature to make GRO list
changes in net-next, as per Stephen Rothwell's example merge
resolution.
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 | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index a4731995e899..814ea43dd12f 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -266,7 +266,7 @@ static void __tcp_ecn_check_ce(struct sock *sk, const struct sk_buff *skb) * it is probably a retransmit. */ if (tp->ecn_flags & TCP_ECN_SEEN) - tcp_enter_quickack_mode(sk, 1); + tcp_enter_quickack_mode(sk, 2); break; case INET_ECN_CE: if (tcp_ca_needs_ecn(sk)) @@ -274,7 +274,7 @@ static void __tcp_ecn_check_ce(struct sock *sk, const struct sk_buff *skb) if (!(tp->ecn_flags & TCP_ECN_DEMAND_CWR)) { /* Better not delay acks, sender can have a very low cwnd */ - tcp_enter_quickack_mode(sk, 1); + tcp_enter_quickack_mode(sk, 2); tp->ecn_flags |= TCP_ECN_DEMAND_CWR; } tp->ecn_flags |= TCP_ECN_SEEN; @@ -3185,6 +3185,15 @@ static int tcp_clean_rtx_queue(struct sock *sk, u32 prior_fack, if (tcp_is_reno(tp)) { tcp_remove_reno_sacks(sk, pkts_acked); + + /* If any of the cumulatively ACKed segments was + * retransmitted, non-SACK case cannot confirm that + * progress was due to original transmission due to + * lack of TCPCB_SACKED_ACKED bits even if some of + * the packets may have been never retransmitted. + */ + if (flag & FLAG_RETRANS_DATA_ACKED) + flag &= ~FLAG_ORIG_SACK_ACKED; } else { int delta; |