netdev - Re: [PATCH net-next v2] tcp: avoid reducing cwnd when ACK+DSACK is received

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Date:	Thu, 8 Jan 2015 10:52:28 -0500
From:	Neal Cardwell <ncardwell@...gle.com>
To:	Sébastien Barré <sebastien.barre@...ouvain.be>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	David Miller <davem@...emloft.net>,
	Netdev <netdev@...r.kernel.org>,
	Gregory Detal <gregory.detal@...ouvain.be>,
	Nandita Dukkipati <nanditad@...gle.com>,
	Yuchung Cheng <ycheng@...gle.com>
Subject: Re: [PATCH net-next v2] tcp: avoid reducing cwnd when ACK+DSACK is received

On Thu, Jan 8, 2015 at 10:49 AM, Neal Cardwell <ncardwell@...gle.com> wrote:
> On Thu, Jan 8, 2015 at 10:39 AM, Sébastien Barré
> <sebastien.barre@...ouvain.be> wrote:
>> What do you and Neal think ?
>
> My preference is to have the whole expression detecting the case where
> the receiver got the probe packet encoded in a single expression.

If we do store it in a bool, then "is_tlp_dupack" is no longer quite
accurate (we're expanding the check to include ACKs that are not
dupacks), so I'd suggest a name like "is_probe_rcvd".

neal
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