netdev - Re: [PATCH v2 net-next 0/2] mptcp: adjust tcp rcvspace on rx

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Message-ID: <20200527115545.GH2915@breakpoint.cc>
Date:   Wed, 27 May 2020 13:55:45 +0200
From:   Florian Westphal <fw@...len.de>
To:     David Miller <davem@...emloft.net>
Cc:     fw@...len.de, netdev@...r.kernel.org, matthieu.baerts@...sares.net,
        mathew.j.martineau@...ux.intel.com, pabeni@...hat.com
Subject: Re: [PATCH v2 net-next 0/2] mptcp: adjust tcp rcvspace on rx

David Miller <davem@...emloft.net> wrote:
> From: Florian Westphal <fw@...len.de>
> Date: Mon, 25 May 2020 20:15:06 +0200
> 
> > These two patches improve mptcp throughput by making sure tcp grows
> > the receive buffer when we move skbs from subflow socket to the
> > mptcp socket.
> > 
> > The second patch moves mptcp receive buffer increase to the recvmsg
> > path, i.e. we only change its size when userspace processes/consumes
> > the data.  This is done by using the largest rcvbuf size of the active
> > subflows.
> 
> What's the follow-up wrt. Christoph's feedback on patch #2?

Please drop these patches, I have no idea (yet?) how to address it.