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x86: unify pmd_bad

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Impact: cleanup

Unify and demacro pmd_bad.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge
2009-02-05 11:31:11 -08:00
parent a61bb29af4
commit 99510238bb
3 changed files with 5 additions and 7 deletions
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5
arch/x86/include/asm/pgtable.h
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@@ -514,6 +514,11 @@ static inline pte_t *pte_offset_kernel(pmd_t *pmd, unsigned long address)
return (pte_t *)pmd_page_vaddr(*pmd) + pte_index(address);
}
static inline int pmd_bad(pmd_t pmd)
{
return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}
#if PAGETABLE_LEVELS > 2
static inline int pud_present(pud_t pud)
{