linux-kernel - Re: x86: Remove STACKPROTECTOR

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Message-ID: <20091023143549.GB8305@elte.hu>
Date:	Fri, 23 Oct 2009 16:35:49 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	linux-kernel@...r.kernel.org, Dave Jones <davej@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, esandeen@...hat.com,
	cebbert@...hat.com, "H. Peter Anvin" <hpa@...or.com>,
	Eric Sandeen <sandeen@...hat.com>
Subject: Re: x86: Remove STACKPROTECTOR_ALL


* Arjan van de Ven <arjan@...radead.org> wrote:

> 
> >From 87296b9275e3561822e1322f9d9aa6c73424e672 Mon Sep 17 00:00:00 2001
> From: Arjan van de Ven <arjan@...ux.intel.com>
> Date: Fri, 23 Oct 2009 07:27:31 -0700
> Subject: [PATCH] x86: remove STACKPROTECTOR_ALL
> 
> STACKPROTECTOR_ALL has a really high overhead (runtime and stack footprint)
> and is not really worth it protection wise (the normal STACKPROTECTOR is
> in effect for all functions with buffers already), so lets just remove
> the option entirely.
> 
> Reported-by: Dave Jones <davej@...hat.com>
> Signed-off-by: Arjan van de Ven <arjan@...ux.intel.com>
> ---
>  arch/x86/Kconfig  |    4 ----
>  arch/x86/Makefile |    1 -
>  2 files changed, 0 insertions(+), 5 deletions(-)

Applied, thanks Arjan!

	Ingo
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