x86: move pte functions into common asm/pgalloc.h

Common definitions for 2-level pagetable functions.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 2d89b7a..9c09893 100644 (file)
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -662,12 +662,6 @@ int memory_add_physaddr_to_nid(u64 start)
 EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #endif
 
-void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
-{
-       pgtable_page_dtor(pte);
-       tlb_remove_page(tlb, pte);
-}
-
 void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
 {
        tlb_remove_page(tlb, virt_to_page(pmd));

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index ed16b77..8376532 100644 (file)
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -21,6 +21,13 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
        return pte;
 }
 
+void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
+{
+       pgtable_page_dtor(pte);
+       paravirt_release_pt(page_to_pfn(pte));
+       tlb_remove_page(tlb, pte);
+}
+
 #ifdef CONFIG_X86_64
 static inline void pgd_list_add(pgd_t *pgd)
 {

diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index b46893e..b9e3dac 100644 (file)
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -173,13 +173,6 @@ void reserve_top_address(unsigned long reserve)
        __VMALLOC_RESERVE += reserve;
 }
 
-void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
-{
-       pgtable_page_dtor(pte);
-       paravirt_release_pt(page_to_pfn(pte));
-       tlb_remove_page(tlb, pte);
-}
-
 #ifdef CONFIG_X86_PAE
 
 void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)

diff --git a/include/asm-x86/pgalloc.h b/include/asm-x86/pgalloc.h
index 2877359..0d15e21 100644 (file)
--- a/include/asm-x86/pgalloc.h
+++ b/include/asm-x86/pgalloc.h
@@ -24,6 +24,22 @@ extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
 extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
 
+/* Should really implement gc for free page table pages. This could be
+   done with a reference count in struct page. */
+
+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
+{
+       BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
+       free_page((unsigned long)pte);
+}
+
+static inline void pte_free(struct mm_struct *mm, struct page *pte)
+{
+       __free_page(pte);
+}
+
+extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte);
+
 #ifdef CONFIG_X86_32
 # include "pgalloc_32.h"
 #else

diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h
index c4e7faa..96a09f5 100644 (file)
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -17,24 +17,6 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *p
 }
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
-/*
- * Allocate and free page tables.
- */
-
-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, pgtable_t pte)
-{
-       pgtable_page_dtor(pte);
-       __free_page(pte);
-}
-
-
-extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte);
-
 #ifdef CONFIG_X86_PAE
 /*
  * In the PAE case we free the pmds as part of the pgd.

diff --git a/include/asm-x86/pgalloc_64.h b/include/asm-x86/pgalloc_64.h
index 23f8750..fc3414d 100644 (file)
--- a/include/asm-x86/pgalloc_64.h
+++ b/include/asm-x86/pgalloc_64.h
@@ -47,22 +47,6 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud)
        free_page((unsigned long)pud);
 }
 
-/* Should really implement gc for free page table pages. This could be
-   done with a reference count in struct page. */
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
-       BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
-       free_page((unsigned long)pte); 
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
-{
-       pgtable_page_dtor(pte);
-       __free_page(pte);
-} 
-
-extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte);
 extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd);
 extern void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud);