diff options
Diffstat (limited to 'net/dccp/feat.c')
| -rw-r--r-- | net/dccp/feat.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/dccp/feat.c b/net/dccp/feat.c index c847c80d1b9..f94c7c9d1a7 100644 --- a/net/dccp/feat.c +++ b/net/dccp/feat.c @@ -74,6 +74,18 @@ static int dccp_hdlr_seq_win(struct sock *sk, u64 seq_win, bool rx) static int dccp_hdlr_ack_ratio(struct sock *sk, u64 ratio, bool rx) { +#ifndef __CCID2_COPES_GRACEFULLY_WITH_DYNAMIC_ACK_RATIO_UPDATES__ + /* + * FIXME: This is required until several problems in the CCID-2 code are + * resolved. The CCID-2 code currently does not cope well; using dynamic + * Ack Ratios greater than 1 caused instabilities. These were manifest + * in hangups and long RTO timeouts (1...3 seconds). Until this has been + * stabilised, it is safer not to activate dynamic Ack Ratio changes. + */ + dccp_pr_debug("Not changing %s Ack Ratio from 1 to %u\n", + rx ? "RX" : "TX", (u16)ratio); + ratio = 1; +#endif if (rx) dccp_sk(sk)->dccps_r_ack_ratio = ratio; else |