netdev - Re: [RFC][PATCH] ns: Syscalls for better namespace sharing control.

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Date:	Fri, 26 Feb 2010 13:42:06 -0800
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Pavel Emelyanov <xemul@...allels.com>
Cc:	hadi@...erus.ca, Daniel Lezcano <dlezcano@...ibm.com>,
	Patrick McHardy <kaber@...sh.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	containers@...ts.linux-foundation.org,
	Netfilter Development Mailinglist 
	<netfilter-devel@...r.kernel.org>,
	Ben Greear <greearb@...delatech.com>,
	Serge Hallyn <serue@...ibm.com>,
	Matt Helsley <matthltc@...ibm.com>
Subject: Re: [RFC][PATCH] ns: Syscalls for better namespace sharing control.

Pavel Emelyanov <xemul@...allels.com> writes:

>>> Yet another set of per-namespace IDs along with CLONE_NEWXXX ones?
>>> I currently have a way to create all namespaces we have with one
>>> syscall. Why don't we have an ability to enter them all with one syscall?
>> 
>> The CLONE_NEWXXX series of bits has been an royal pain to work with,
>> and it appears to be unnecessary complications for no gain.
>
> That's the answer for the "Yet another set..." question.
> How about the "Why don't we have..." one?

I am not certain which question you are asking:

Why don't we have an ability to enter all namespaces with one syscall
invocation?

Why don't we have a syscall that allows us to enter every namespace?

Eric

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