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-rw-r--r--include/asm-x86/page_32.h2
-rw-r--r--include/asm-x86/page_64.h2
-rw-r--r--include/asm-x86/pgalloc_32.h6
-rw-r--r--include/asm-x86/pgalloc_64.h22
4 files changed, 25 insertions, 7 deletions
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index a6fd10f230d..ba715d9798b 100644
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -50,6 +50,8 @@ typedef unsigned long phys_addr_t;
typedef union { pteval_t pte, pte_low; } pte_t;
typedef pte_t boot_pte_t;
+typedef struct page *pgtable_t;
+
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_X86_PAE */
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index dcf0c074607..f7393bc516e 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -71,6 +71,8 @@ typedef unsigned long pgdval_t;
typedef unsigned long pgprotval_t;
typedef unsigned long phys_addr_t;
+typedef struct page *pgtable_t;
+
typedef struct { pteval_t pte; } pte_t;
#define vmemmap ((struct page *)VMEMMAP_START)
diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h
index bab12718a91..6bea6e5b5ee 100644
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -31,6 +31,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *p
paravirt_alloc_pt(mm, pfn);
set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE));
}
+#define pmd_pgtable(pmd) pmd_page(pmd)
/*
* Allocate and free page tables.
@@ -39,15 +40,16 @@ 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);
}
diff --git a/include/asm-x86/pgalloc_64.h b/include/asm-x86/pgalloc_64.h
index 4f6220db22b..8d6722320dc 100644
--- a/include/asm-x86/pgalloc_64.h
+++ b/include/asm-x86/pgalloc_64.h
@@ -12,6 +12,8 @@
#define pgd_populate(mm, pgd, pud) \
set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)))
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
{
set_pmd(pmd, __pmd(_PAGE_TABLE | (page_to_pfn(pte) << PAGE_SHIFT)));
@@ -91,12 +93,17 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long ad
return (pte_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
-static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
- void *p = (void *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
+ struct page *page;
+ void *p;
+
+ p = (void *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
if (!p)
return NULL;
- return virt_to_page(p);
+ page = virt_to_page(p);
+ pgtable_page_ctor(page);
+ return page;
}
/* Should really implement gc for free page table pages. This could be
@@ -108,12 +115,17 @@ 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)
#define __pmd_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))
#define __pud_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))