Commit c2f71ee2 authored Feb 04, 2008 by Andi Kleen Committed by Ingo Molnar Feb 04, 2008

x86: add gbpages support to lookup_address



[ tglx@linutronix.de: fix bootup crash on sparse mappings. ]

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

parent 61e19a34

arch/x86/mm/pageattr.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -209,6 +209,11 @@ pte_t lookup_address(unsigned long address, int level)
		pud = pud_offset(pgd, address);
		if (pud_none(*pud))
		return NULL;

		*level = PG_LEVEL_1G;
		if (pud_large(pud) \|\| !pud_present(pud))
		return (pte_t *)pud;

		pmd = pmd_offset(pud, address);
		if (pmd_none(*pmd))
		return NULL;