From: Florian Westphal <[email protected]>
Date: Mon, 21 Nov 2016 14:18:36 +0100
> highspeed, illinois, scalable, veno and yeah congestion control algorithms
> don't provide a 'cwnd_undo' function. This makes the stack default to a
> 'reno undo' which doubles cwnd. However, the ssthresh implementation of
> these algorithms do not halve the slowstart threshold. This causes similar
> issue as the one fixed for dctcp in ce6dd23329b1e ("dctcp: avoid bogus
> doubling of cwnd after loss").
>
> In light of this it seems better to remove the fallback and make undo_cwnd
> mandatory.
>
> First patch fixes those spots where reno undo seems incorrect by providing
> .cwnd_undo functions, second patch removes the fallback.
Series applied, thanks for following up on this.
