Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

[sfrench/cifs-2.6.git] / include / asm-powerpc / pgtable.h

diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h
index e38931379a723541eeb2504df1195b36622ec191..e9f1f4627e6bab35cd34910e3bf4bb05763b85ff 100644 (file)
--- a/include/asm-powerpc/pgtable.h
+++ b/include/asm-powerpc/pgtable.h
@@ -188,9 +188,13 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot)
 #define pte_pfn(x)             ((unsigned long)((pte_val(x)>>PTE_RPN_SHIFT)))
 #define pte_page(x)            pfn_to_page(pte_pfn(x))
 
+#define PMD_BAD_BITS           (PTE_TABLE_SIZE-1)
+#define PUD_BAD_BITS           (PMD_TABLE_SIZE-1)
+
 #define pmd_set(pmdp, pmdval)  (pmd_val(*(pmdp)) = (pmdval))
 #define pmd_none(pmd)          (!pmd_val(pmd))
-#define        pmd_bad(pmd)            (pmd_val(pmd) == 0)
+#define        pmd_bad(pmd)            (!is_kernel_addr(pmd_val(pmd)) \
+                                || (pmd_val(pmd) & PMD_BAD_BITS))
 #define        pmd_present(pmd)        (pmd_val(pmd) != 0)
 #define        pmd_clear(pmdp)         (pmd_val(*(pmdp)) = 0)
 #define pmd_page_kernel(pmd)   (pmd_val(pmd) & ~PMD_MASKED_BITS)
@@ -198,7 +202,8 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot)
 
 #define pud_set(pudp, pudval)  (pud_val(*(pudp)) = (pudval))
 #define pud_none(pud)          (!pud_val(pud))
-#define pud_bad(pud)           ((pud_val(pud)) == 0)
+#define        pud_bad(pud)            (!is_kernel_addr(pud_val(pud)) \
+                                || (pud_val(pud) & PUD_BAD_BITS))
 #define pud_present(pud)       (pud_val(pud) != 0)
 #define pud_clear(pudp)                (pud_val(*(pudp)) = 0)
 #define pud_page(pud)          (pud_val(pud) & ~PUD_MASKED_BITS)
@@ -468,11 +473,6 @@ extern pgd_t swapper_pg_dir[];
 
 extern void paging_init(void);
 
-#ifdef CONFIG_HUGETLB_PAGE
-#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \
-       free_pgd_range(tlb, addr, end, floor, ceiling)
-#endif
-
 /*
  * This gets called at the end of handling a page fault, when
  * the kernel has put a new PTE into the page table for the process.