From: Eric Dumazet <eduma...@google.com>
Date: Sat, 24 Nov 2018 09:12:24 -0800
> When a qdisc setup including pacing FQ is dismantled and recreated,
> some TCP packets are sent earlier than instructed by TCP stack.
>
> TCP can be fooled when ACK comes back, because the following
> operation can return a negative value.
>
> tcp_time_stamp(tp) - tp->rx_opt.rcv_tsecr;
>
> Some paths in TCP stack were not dealing properly with this,
> this patch addresses four of them.
>
> Fixes: ab408b6dc744 ("tcp: switch tcp and sch_fq to new earliest departure
> time model")
> Signed-off-by: Eric Dumazet <eduma...@google.com>
Applied, thanks Eric.
