diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp_input.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index c28976a7e59..3f2f09091bc 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3273,18 +3273,15 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets, if (tcp_is_reno(tp)) { tcp_remove_reno_sacks(sk, pkts_acked); } else { + int delta; + /* Non-retransmitted hole got filled? That's reordering */ if (reord < prior_fackets) tcp_update_reordering(sk, tp->fackets_out - reord, 0); - /* No need to care for underflows here because - * the lost_skb_hint gets NULLed if we're past it - * (or something non-trivial happened) - */ - if (tcp_is_fack(tp)) - tp->lost_cnt_hint -= pkts_acked; - else - tp->lost_cnt_hint -= prior_sacked - tp->sacked_out; + delta = tcp_is_fack(tp) ? pkts_acked : + prior_sacked - tp->sacked_out; + tp->lost_cnt_hint -= min(tp->lost_cnt_hint, delta); } tp->fackets_out -= min(pkts_acked, tp->fackets_out); |