xen: allow set_pte_at on init_mm to be lockless

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The usual pagetable locking protocol doesn't seem to apply to updates
to init_mm, so don't rely on preemption being disabled in xen_set_pte_at
on init_mm.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Jeremy Fitzhardinge 2008-04-02 10:54:10 -07:00 • committed by Ingo Molnar

parent 41e332b2a2

commit 2bd50036b5

1 changed files with 10 additions and 2 deletions

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arch/x86/xen/mmu.c

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