x86: unify pmd_bad
Impact: cleanup
Unify and demacro pmd_bad.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 38882f6..72bf53e 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -514,6 +514,11 @@
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)
{