1 files changed, 6 insertions, 0 deletions

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 4ec24b6d0994..a7dbb05075d2 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -504,6 +504,12 @@ static inline struct page *pud_page(pud_t pud)
 {
         return pfn_to_page(pud_val(pud) >> PAGE_SHIFT);
 }
+
+/* Find an entry in the second-level page table.. */
+static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
+{
+        return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
+}
 #endif  /* PAGETABLE_LEVELS > 2 */
 
 #if PAGETABLE_LEVELS > 3