linux-kernel - Re: [rfc v2 0/7] procfs fdinfo extension v2

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Message-ID: <20120524184159.GA26259@moon>
Date:	Thu, 24 May 2012 22:41:59 +0400
From:	Cyrill Gorcunov <gorcunov@...nvz.org>
To:	Matt Helsley <matthltc@...ibm.com>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pavel Emelyanov <xemul@...allels.com>,
	James Bottomley <jbottomley@...allels.com>,
	ebiederm@...ssion.com, tj@...nel.org, skinsbursky@...nvz.org
Subject: Re: [rfc v2 0/7] procfs fdinfo extension v2

On Thu, May 24, 2012 at 10:23:47PM +0400, Cyrill Gorcunov wrote:
> > 
> > As best I can tell your reply last time only fleshed out the details
> > of *how* you would like it to work, not *why it needs to* work that way:
> > 
> > 	http://lkml.org/lkml/2011/11/30/27

Matt, as to "why it needs to work that way" -- this approach will simply
work well without a need to patch mainline kernel much, since almost everything
needed for transparent restore already in kernel except "ptrace with frozen cgroup",
(we even restore without frozen cgroup but with a couple of nasty tricks in crtools
utility now). But if there some other approach which we've missed, I would
really appreciate if you share it.

	Cyrill
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