linux-kernel - Re: [PATCH] x86: make SMP locks handling interact properly with CONFIG_DEBUG

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Date:	Wed, 4 Jul 2007 18:15:58 +0200
From:	Andi Kleen <ak@...e.de>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Jan Beulich <jbeulich@...ell.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, patches@...-64.org
Subject: Re: [PATCH] x86: make SMP locks handling interact properly with	CONFIG_DEBUG_RODATA (2nd try)

On Wednesday 04 July 2007 17:41:39 Jeremy Fitzhardinge wrote:
> Jan Beulich wrote:
> > Instead of suppressing the change of .text to become readonly, make
> > the SMP locks patching code properly adjust/restore the page access
> > rights.
> >   
> 
> I guess we'll need to do the same thing for paravirt_ops patching?

Not if the patching happens early enough at boot. That's true for Xen
and lguest, but I'm not sure about VMI

-Andi

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