]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] i386: remove default_ldt, and simplify ldt-setting.
authorJeremy Fitzhardinge <jeremy@goop.org>
Thu, 7 Dec 2006 01:14:01 +0000 (02:14 +0100)
committerAndi Kleen <andi@basil.nowhere.org>
Thu, 7 Dec 2006 01:14:01 +0000 (02:14 +0100)
commite5e3a0428968dcc1f9318ce1c941a918e99f8b84
treefa2dcb620a22ba197371ac08944628993958ba1e
parente2764a1e306c986053a52b33748c33463cf888de
[PATCH] i386: 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@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Acked-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
arch/i386/kernel/ldt.c
arch/i386/kernel/traps.c
include/asm-i386/desc.h
include/asm-i386/mmu_context.h