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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-12 12:51:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-12 12:51:05 +0100 |
| commit | c1ed47355467d03639b750570b4324f7c1eed68c (patch) | |
| tree | ad1994abec3acf822ccd4b74b1121599e5b1c148 /net/ipv4/tcp_rate.c | |
| parent | 72b663a99c074a8d073e7ecdae446cfb024ef551 (diff) | |
| parent | 9dbe416b656bb015fc49fc17961000ffa418838a (diff) | |
| download | linux-c1ed47355467d03639b750570b4324f7c1eed68c.tar.bz2 | |
Merge tag 'fixes-for-v4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.15-rc4
We have a few fixes on dwc3:
- one fix which only happens with some implementations where we need to
wait longer for some commands to finish.
- Another fix for high-bandwidth isochronous endpoint programming making
sure that we send the correct DATA tokens in the correct sequence
- A couple PM fixes on dwc3-of-simple
The other synopsys controller driver (dwc2) got a fix for FIFO size
programming.
Other than these, we have a couple Kconfig fixes making sure that
dependencies are properly setup.
Diffstat (limited to 'net/ipv4/tcp_rate.c')
| -rw-r--r-- | net/ipv4/tcp_rate.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv4/tcp_rate.c b/net/ipv4/tcp_rate.c index 3330a370d306..c61240e43923 100644 --- a/net/ipv4/tcp_rate.c +++ b/net/ipv4/tcp_rate.c @@ -106,7 +106,7 @@ void tcp_rate_skb_delivered(struct sock *sk, struct sk_buff *skb, /* Update the connection delivery information and generate a rate sample. */ void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost, - struct rate_sample *rs) + bool is_sack_reneg, struct rate_sample *rs) { struct tcp_sock *tp = tcp_sk(sk); u32 snd_us, ack_us; @@ -124,8 +124,12 @@ void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost, rs->acked_sacked = delivered; /* freshly ACKed or SACKed */ rs->losses = lost; /* freshly marked lost */ - /* Return an invalid sample if no timing information is available. */ - if (!rs->prior_mstamp) { + /* Return an invalid sample if no timing information is available or + * in recovery from loss with SACK reneging. Rate samples taken during + * a SACK reneging event may overestimate bw by including packets that + * were SACKed before the reneg. + */ + if (!rs->prior_mstamp || is_sack_reneg) { rs->delivered = -1; rs->interval_us = -1; return; |