diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2018-09-06 14:14:25 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2018-09-06 14:14:24 -0700 |
| commit | c44da670c28766ea7fa8b46453e9111965bf2eb2 (patch) | |
| tree | 79d7b94b76dc3eb27d74ef7be44e2f88e1dc39f8 /net/dccp/ccids/ccid2.c | |
| parent | 356bd90ee7d4caac787e2c4c9da68b585b7cf48b (diff) | |
| parent | b87d31674ac9e8203f3a30b53f6a697bf5cf36b6 (diff) | |
Merge "Merge android-4.4.153 (5e24b4e) into msm-4.4"
Diffstat (limited to 'net/dccp/ccids/ccid2.c')
| -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 86a2ed0fb219..161dfcf86126 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c @@ -228,14 +228,16 @@ 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; |