To: Kirill Korotaev <dev@openvz.org>
Cc: Linus Torvalds <torvalds@osdl.org>, akpm@osdl.org,
       linux-kernel@vger.kernel.org, frankeh@watson.ibm.com, clg@fr.ibm.com,
       haveblue@us.ibm.com, greg@kroah.com, alan@lxorguk.ukuu.org.uk,
       serue@us.ibm.com, arjan@infradead.org, riel@redhat.com,
       kuznet@ms2.inr.ac.ru, saw@sawoct.com, devel@openvz.org,
       "Dmitry Mishin" <dim@sw.ru>, Andi Kleen <ak@suse.de>
Subject: Re: [PATCH 1/4] Virtualization/containers: introduction
References: <43E7C65F.3050609@openvz.org>
From: ebiederm@xmission.com (Eric W. Biederman)
Date: Mon, 06 Feb 2006 20:34:33 -0700
In-Reply-To: <43E7C65F.3050609@openvz.org> (Kirill Korotaev's message of
 "Tue, 07 Feb 2006 00:57:51 +0300")
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Kirill Korotaev <dev@openvz.org> writes:

> Hello,
>
> I tried to take into account all the comments from you guys (thanks a lot for
> them!) and prepared a new version of virtualization patches. I will send only 4
> patches today, just not to overflow everyone and keep it clear/tidy/possible to
> review.
>
> This patch introduces some abstract container kernel structure and a number of
> operations on it.

>
> The important properties of the proposed container implementation:
> - each container has unique ID in the system
What namespace does this ID live in?

> - each process in the kernel can belong to one container only
Reasonable.

> - effective container pointer (econtainer()) is used on the task to avoid
> insertion of additional argument "container" to all functions where it is
> required.

Why is that desirable?

> - kernel compilation with disabled virtualization should result in old good
> linux kernel
A reasonable goal.

Why do we need a container structure to hold pointers to other pointers?

> Patches following this one will be used for virtualization of the kernel
> resources based on this container infrastructure, including those VPID patches I
> sent before. Every virtualized resource can be given separate config option if
> needed (just give me to know if it is desired).
>
> Signed-Off-By: Kirill Korotaev <dev@openvz.org>
>
> Kirill
>
> P.S. I understand that this virtualization spam can be unintersting for some of
> you, just give me to know if you want to be removed from CC.

May I please be added to the CC list.

We are never going to form a consensus if all of the people doing implementations don't
talk.

Eric
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