linux-kernel - Re: [PATCH] x86: tighten kernel image page access rights

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Date:	Thu, 29 Mar 2007 08:17:48 +0100
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	"Andi Kleen" <ak@...e.de>
Cc:	<linux-kernel@...r.kernel.org>, <patches@...-64.org>
Subject: Re: [PATCH] x86: tighten kernel image page access rights

>>> Andi Kleen <ak@...e.de> 28.03.07 21:07 >>>
>
>> +#ifdef CONFIG_HOTPLUG_CPU
>> +	/* It must still be possible to apply SMP alternatives. */
>> +	if (num_possible_cpus() <= 1)
>
>It would be better to temporarily change the pages where the alternatives
>are applied while that is done and keep it otherwise ro

I had considered that, but not done so due to the larger resulting patch.
Are you okay with doing this as a follow-up step?

Jan
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