linux-kernel - Re: prctl(PR_SET

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Date:	Thu, 21 Feb 2013 14:18:41 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Cyrill Gorcunov <gorcunov@...nvz.org>
Cc:	Amnon Shiloh <u3557@...o.sublimeip.com>,
	Steven Rostedt <rostedt@...dmis.org>, u3557@...lix.com.au,
	Oleg Nesterov <oleg@...hat.com>,
	Pedro Alves <palves@...hat.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Jan Kratochvil <jan.kratochvil@...hat.com>,
	Pavel Emelyanov <xemul@...allels.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	linux-kernel@...r.kernel.org
Subject: Re: prctl(PR_SET_MM)

On Thu, 21 Feb 2013 12:00:28 +0400
Cyrill Gorcunov <gorcunov@...nvz.org> wrote:

> From: Amnon Shiloh <u3557@...o.sublimeip.com>
> Subject: prctl: Make PR_SET_MM being depend on own CONFIG_MM_FIELDS_SETTING
> 
> ...
> 
> Signed-off-by: Amnon Shiloh <u3557@...o.sublimeip.com>

The "..." makes me sad.

If/when this patch gets sent for real, please explain the reasons? 
AFAICT it permits the enabling of prctl(PR_SET_MM) in
CONFIG_CHECKPOINT_RESTORE=n kernels.  If that was indeed the intent,
why?

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