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

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Message-ID: <20120308193638.GI21812@moon>
Date:	Thu, 8 Mar 2012 23:36:38 +0400
From:	Cyrill Gorcunov <gorcunov@...nvz.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Matt Helsley <matthltc@...ibm.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Pavel Emelyanov <xemul@...allels.com>,
	Kees Cook <keescook@...omium.org>, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] c/r: prctl: Add ability to set new mm_struct::exe_file v3

On Thu, Mar 08, 2012 at 08:25:59PM +0100, Oleg Nesterov wrote:
> >
> > Sure, I can drop num_exe_file_vmas != 0 case and refuse to
> > setup new exe symlink if there some VM_EXECUTABLE remains
> > unmapped. Sounds good?
> 
> Personally I like this. This is simple and _understable_, even
> if ->num_exe_file_vmas has no meaning after PR_SET_MM_EXE.
> 
> But please-please document the new special case in the changelog.
> 

Sure, will update, thanks.

	Cyrill
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