linux-kernel - Re: [RFC] c/r: prctl: Add ability to set new mm_struct::exe

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Message-ID: <20120229153132.GG11326@moon>
Date:	Wed, 29 Feb 2012 19:31:32 +0400
From:	Cyrill Gorcunov <gorcunov@...nvz.org>
To:	Pavel Emelyanov <xemul@...allels.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Kees Cook <keescook@...omium.org>, Tejun Heo <tj@...nel.org>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: [RFC] c/r: prctl: Add ability to set new mm_struct::exe_file

On Wed, Feb 29, 2012 at 07:23:07PM +0400, Pavel Emelyanov wrote:
> On 02/29/2012 07:16 PM, Cyrill Gorcunov wrote:
> > Hi guys,
> > 
> > at restore time we would like to have a way for /proc/pid/exe
> > symlink recovering. So I thought extending prctl might be
> > a good idea.
> > 
> > Still maybe there some other good and 'right' way to do it,
> > so I would like to gather opinions.
> 
> If using the prctl for this, then taking a given file descriptor
> (with fcheck) instead of taking path and opening it in kernel is
> better.
> 

Sounds like a plan. Thanks Pavel!

	Cyrill
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