x86: remove open-coded save/load segment operations

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This removes a pile of buggy open-coded implementations of savesegment
and loadsegment.

(They are buggy because they don't have memory barriers to prevent
them from being reordered with respect to memory accesses.)

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Jeremy Fitzhardinge 2008-06-25 00:19:00 -04:00 • committed by Ingo Molnar

parent af2b1c609f

commit ada8570823

2 changed files with 17 additions and 14 deletions

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3

arch/x86/kernel/cpu/common_64.c

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28

arch/x86/kernel/process_64.c

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