linux-kernel - Re: [PATCH 8/8] net: Implement socketat.

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Message-Id: <1285242055.5036.9.camel@bigi>
Date:	Thu, 23 Sep 2010 07:40:55 -0400
From:	jamal <hadi@...erus.ca>
To:	Pavel Emelyanov <xemul@...allels.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org,
	Linux Containers <containers@...ts.osdl.org>,
	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	Daniel Lezcano <daniel.lezcano@...e.fr>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Ulrich Drepper <drepper@...il.com>,
	Al Viro <viro@...IV.linux.org.uk>,
	David Miller <davem@...emloft.net>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Ben Greear <greearb@...delatech.com>,
	Matt Helsley <matthltc@...ibm.com>,
	Jonathan Corbet <corbet@....net>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Jan Engelhardt <jengelh@...ozas.de>,
	Patrick McHardy <kaber@...sh.net>
Subject: Re: [PATCH 8/8] net: Implement socketat.

On Thu, 2010-09-23 at 15:33 +0400, Pavel Emelyanov wrote:

> This particular usecase is unneeded once you have the "enter" ability.

Is that cheaper from a syscall count/cost?
i.e do I have to enter every time i want to write/read this fd?
How does poll/select work in that enter scenario?

cheers,
jamal

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