linux-kernel - Re: [PATCH] Remove default_ldt, and simplify ldt-setting.

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Date:	Thu, 24 Aug 2006 16:09:14 -0700
From:	Zachary Amsden <zach@...are.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>
Subject: Re: [PATCH] Remove default_ldt, and simplify ldt-setting.

Jeremy Fitzhardinge wrote:
> (This is the replacement for kill-default_ldt.patch.)
>
> Remove default_ldt, and simplify ldt-setting.
>
> This patch removes the default_ldt[] array, as it has been unused
> since iBCS stopped being supported.  This means it is now possible to
> actually set an empty LDT segment.
>
> In order to deal with this, the set_ldt_desc/load_LDT pair has been
> replaced with a single set_ldt() operation which is responsible for
> both setting up the LDT descriptor in the GDT, and reloading the LDT
> register.  If there are no LDT entries, the LDT register is loaded
> with a NULL descriptor.
>
> Signed-off-by: Jeremy Fitzhardinge <jeremy@...source.com>
> Cc: Andi Kleen <ak@...e.de>
> Cc: Zachary Amsden <zach@...are.com>

Acked-by: Zachary Amsden <zach@...are.com>

This looks good.

Zach
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