netdev - Re: What's the status of TCP friends?

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Message-ID: <1394978619.9668.14.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Sun, 16 Mar 2014 07:03:39 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Zheng Liu <gnehzuil.liu@...il.com>
Cc:	netdev <netdev@...r.kernel.org>, Li Yu <bingtian.ly@...bao.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Bruce Brutus Curtis <brutus@...gle.com>,
	Weiping Pan <panweiping3@...il.com>
Subject: Re: What's the status of TCP friends?

On Sun, 2014-03-16 at 17:07 +0800, Zheng Liu wrote:
> Hi all,
> 
> Until now the TCP friends patch set doesn't be applied.  Now what's the
> status of TCP friends?  Is it applicable to be merged into upstream
> kernel?  Any problem that needs to be fixed?  Please let me know if I
> can help.

Well, last attempts showed that while the idea sounded cool,
implementation opened many races and added quite a lot of complexity in
fast path.

We have AF_UNIX with a lot of problems in it, do we really want to bring
these AF_UNIX problems to AF_INET ?

I would rather spend time on AF_UNIX if it doesn't fit your needs right
now, or consider jumping to KDBUS modern design.

Using AF_INET for IPC is poor choice.


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