[PATCH 4 of 7] x86: move pte functions into common asm/pgalloc.h

[Jeremy Fitzhardinge <jeremy@goop.org>]

Common definitions for 2-level pagetable functions.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
---
 arch/x86/mm/pgtable.c        |    6 ++++++
 arch/x86/mm/pgtable_32.c     |    6 ------
 include/asm-x86/pgalloc.h    |   16 ++++++++++++++++
 include/asm-x86/pgalloc_32.h |   17 -----------------
 include/asm-x86/pgalloc_64.h |   19 -------------------
 5 files changed, 22 insertions(+), 42 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -843,11 +843,6 @@
 }
 #endif
 
-void __pte_free_tlb(struct mmu_gather *tlb, struct page *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
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -16,6 +16,12 @@
 	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
 #endif
 	return pte;
+}
+
+void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
+{
+	paravirt_release_pt(page_to_pfn(pte));
+	tlb_remove_page(tlb, pte);
 }
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -178,12 +178,6 @@
 	__VMALLOC_RESERVE += reserve;
 }
 
-void __pte_free_tlb(struct mmu_gather *tlb, struct page *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
--- a/include/asm-x86/pgalloc.h
+++ b/include/asm-x86/pgalloc.h
@@ -24,6 +24,22 @@
 pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address);
 struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address);
 
+/* 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(pte_t *pte)
+{
+	BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
+	free_page((unsigned long)pte);
+}
+
+static inline void pte_free(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
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -15,23 +15,6 @@
 	paravirt_alloc_pt(mm, pfn);
 	set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE));
 }
-
-/*
- * Allocate and free page tables.
- */
-
-static inline void pte_free_kernel(pte_t *pte)
-{
-	free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct page *pte)
-{
-	__free_page(pte);
-}
-
-
-extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte);
 
 #ifdef CONFIG_X86_PAE
 /*
diff --git a/include/asm-x86/pgalloc_64.h b/include/asm-x86/pgalloc_64.h
--- a/include/asm-x86/pgalloc_64.h
+++ b/include/asm-x86/pgalloc_64.h
@@ -45,21 +45,6 @@
 	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(pte_t *pte)
-{
-	BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
-	free_page((unsigned long)pte); 
-}
-
-static inline void pte_free(struct page *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);