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| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-09-26 16:54:31 +0300 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-09-26 16:54:31 +0300 |
| commit | aaccf3c97418f169afdbb5855e9cbcbda34e90fd (patch) | |
| tree | 5d4207e67958bdbc23288cf30178692f5534e1a0 /net/dccp/ccids/ccid2.c | |
| parent | f39684524b391c5a7ed0ac44db4fec3357af1c5d (diff) | |
| parent | 6bf4ca7fbc85d80446ac01c0d1d77db4d91a6d84 (diff) | |
| download | linux-aaccf3c97418f169afdbb5855e9cbcbda34e90fd.tar.xz | |
Merge tag 'v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Sync with upstream (which now contains fbdev-v4.19 changes) to
prepare a base for fbdev-v4.20 changes.
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 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; |