i386: avoid temporarily inconsistent pte-s

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One more of these issues (which were considered fixed a few releases
back): other than on x86-64, i386 allows set_fixmap() to replace
already present mappings. Consequently, on PAE, care must be taken to
not update the high half of a pte while the low half is still holding
the old value.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

 arch/x86/mm/pgtable_32.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

...

This commit is contained in:

Jan Beulich 2007-10-17 18:04:33 +02:00 • committed by Thomas Gleixner

parent d72b1b4f41

commit aa506dc7b1

1 changed files with 1 additions and 2 deletions

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3

arch/x86/mm/pgtable_32.c

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