CONFIG_HIGHPTE vs. sub-page page tables.

[powerpc.git] / include / asm-um / pgalloc.h

diff --git a/include/asm-um/pgalloc.h b/include/asm-um/pgalloc.h
index 4f3e62b..9062a6e 100644 (file)
--- a/include/asm-um/pgalloc.h
+++ b/include/asm-um/pgalloc.h
@@ -18,6 +18,7 @@
        set_pmd(pmd, __pmd(_PAGE_TABLE +                        \
                ((unsigned long long)page_to_pfn(pte) <<        \
                        (unsigned long long) PAGE_SHIFT)))
+#define pmd_pgtable(pmd) pmd_page(pmd)
 
 /*
  * Allocate and free page tables.
@@ -26,19 +27,24 @@ extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
 extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
+extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
        free_page((unsigned long) pte);
 }
 
-static inline void pte_free(struct mm_struct *mm, struct page *pte)
+static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
 {
+       pgtable_page_dtor(pte);
        __free_page(pte);
 }
 
-#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
+#define __pte_free_tlb(tlb,pte)                                \
+do {                                                   \
+       pgtable_page_dtor(pte);                         \
+       tlb_remove_page((tlb),(pte));                   \
+} while (0)
 
 #ifdef CONFIG_3_LEVEL_PGTABLES