- pgd_t *pgd;
- pmd_t *pmd;
- pte_t large_pte;
-
- pgd = pgd_offset_k(address);
- pmd = pmd_offset(pgd, address);
- BUG_ON(pmd_val(*pmd) & _PAGE_PSE);
- pgprot_val(ref_prot) |= _PAGE_PSE;
- large_pte = mk_pte_phys(__pa(address) & LARGE_PAGE_MASK, ref_prot);
- set_pte((pte_t *)pmd, large_pte);
+ pgd_t *pgd;
+ pud_t *pud;
+ pmd_t *pmd;
+ pte_t large_pte;
+
+ pgd = pgd_offset_k(address);
+ BUG_ON(pgd_none(*pgd));
+ pud = pud_offset(pgd,address);
+ BUG_ON(pud_none(*pud));
+ pmd = pmd_offset(pud, address);
+ BUG_ON(pmd_val(*pmd) & _PAGE_PSE);
+ pgprot_val(ref_prot) |= _PAGE_PSE;
+ large_pte = mk_pte_phys(__pa(address) & LARGE_PAGE_MASK, ref_prot);
+ set_pte((pte_t *)pmd, large_pte);