diff options
| author | David S. Miller <davem@davemloft.net> | 2018-08-09 11:52:36 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-08-09 11:52:36 -0700 |
| commit | a736e074680745faa5dc6be8dd3c58ad4850aab9 (patch) | |
| tree | 620e6d20cfce3806399fbefa8d911cc848463f9b /net/dccp | |
| parent | 192e91d244e376b32d90ffbf78c87a0fb35a4040 (diff) | |
| parent | 112cbae26d18e75098d95cc234cfa5059de8d479 (diff) | |
| download | linux-a736e074680745faa5dc6be8dd3c58ad4850aab9.tar.bz2 | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Overlapping changes in RXRPC, changing to ktime_get_seconds() whilst
adding some tracepoints.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
| -rw-r--r-- | net/dccp/ccids/ccid2.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c index 2b75df469220..842a9c7c73a3 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c @@ -229,14 +229,16 @@ static void ccid2_cwnd_restart(struct sock *sk, const u32 now) struct ccid2_hc_tx_sock *hc = ccid2_hc_tx_sk(sk); u32 cwnd = hc->tx_cwnd, restart_cwnd, iwnd = rfc3390_bytes_to_packets(dccp_sk(sk)->dccps_mss_cache); + s32 delta = now - hc->tx_lsndtime; hc->tx_ssthresh = max(hc->tx_ssthresh, (cwnd >> 1) + (cwnd >> 2)); /* don't reduce cwnd below the initial window (IW) */ restart_cwnd = min(cwnd, iwnd); - cwnd >>= (now - hc->tx_lsndtime) / hc->tx_rto; - hc->tx_cwnd = max(cwnd, restart_cwnd); + while ((delta -= hc->tx_rto) >= 0 && cwnd > restart_cwnd) + cwnd >>= 1; + hc->tx_cwnd = max(cwnd, restart_cwnd); hc->tx_cwnd_stamp = now; hc->tx_cwnd_used = 0; |