ARM: Pass VMA to copy_user_highpage() implementations

Our copy_user_highpage() implementations may require cache maintainence.
Ensure that implementations have all necessary details to perform this
maintainence.

Signed-off-by: Russell King <[e-mail]>

arch/arm/include/asm/page.h

···
 #endif
 
 struct page;
+struct vm_area_struct;
 
 struct cpu_user_fns {
 	void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
 	void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
-			unsigned long vaddr);
+			unsigned long vaddr, struct vm_area_struct *vma);
 };
 
 #ifdef MULTI_USER
···
 
 extern void __cpu_clear_user_highpage(struct page *page, unsigned long vaddr);
 extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
-			unsigned long vaddr);
+			unsigned long vaddr, struct vm_area_struct *vma);
 #endif
 
 #define clear_user_highpage(page,vaddr)		\
···
 
 #define __HAVE_ARCH_COPY_USER_HIGHPAGE
 #define copy_user_highpage(to,from,vaddr,vma)	\
-	__cpu_copy_user_highpage(to, from, vaddr)
+	__cpu_copy_user_highpage(to, from, vaddr, vma)
 
 #define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
 extern void copy_page(void *to, const void *from);

arch/arm/mm/copypage-feroceon.c

···
 }
 
 void feroceon_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto, *kfrom;
 

arch/arm/mm/copypage-v3.c

···
 }
 
 void v3_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto, *kfrom;
 

arch/arm/mm/copypage-v4mc.c

···
 }
 
 void v4_mc_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto = kmap_atomic(to, KM_USER1);
 

arch/arm/mm/copypage-v4wb.c

···
 }
 
 void v4wb_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto, *kfrom;
 

arch/arm/mm/copypage-v4wt.c

···
 }
 
 void v4wt_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto, *kfrom;
 

arch/arm/mm/copypage-v6.c

···
  * attack the kernel's existing mapping of these pages.
  */
 static void v6_copy_user_highpage_nonaliasing(struct page *to,
-	struct page *from, unsigned long vaddr)
+	struct page *from, unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto, *kfrom;
 
···
  * Copy the page, taking account of the cache colour.
  */
 static void v6_copy_user_highpage_aliasing(struct page *to,
-	struct page *from, unsigned long vaddr)
+	struct page *from, unsigned long vaddr, struct vm_area_struct *vma)
 {
 	unsigned int offset = CACHE_COLOUR(vaddr);
 	unsigned long kfrom, kto;

arch/arm/mm/copypage-xsc3.c

···
 }
 
 void xsc3_mc_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto, *kfrom;
 

arch/arm/mm/copypage-xscale.c

···
 }
 
 void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto = kmap_atomic(to, KM_USER1);