1 files changed, 18 insertions, 7 deletions

diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
index 230210822961..186a68a794a9 100644
--- a/arch/arm/mm/copypage-v4wb.c
+++ b/arch/arm/mm/copypage-v4wb.c
@@ -8,11 +8,10 @@
  * published by the Free Software Foundation.
  */
 #include <linux/init.h>
-
-#include <asm/page.h>
+#include <linux/highmem.h>
 
 /*
- * ARMv4 optimised copy_user_page
+ * ARMv4 optimised copy_user_highpage
  *
  * We flush the destination cache lines just before we write the data into the
  * corresponding address.  Since the Dcache is read-allocate, this removes the
@@ -21,10 +20,10 @@
  *
  * Note: We rely on all ARMv4 processors implementing the "invalidate D line"
  * instruction.  If your processor does not supply this, you have to write your
- * own copy_user_page that does the right thing.
+ * own copy_user_highpage that does the right thing.
  */
-void __attribute__((naked))
-v4wb_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
+static void __attribute__((naked))
+v4wb_copy_user_page(void *kto, const void *kfrom)
 {
         asm("\
         stmfd   sp!, {r4, lr}                   @ 2\n\
@@ -48,6 +47,18 @@ v4wb_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
         : "I" (PAGE_SIZE / 64));
 }
 
+void v4wb_copy_user_highpage(struct page *to, struct page *from,
+        unsigned long vaddr)
+{
+        void *kto, *kfrom;
+
+        kto = kmap_atomic(to, KM_USER0);
+        kfrom = kmap_atomic(from, KM_USER1);
+        v4wb_copy_user_page(kto, kfrom);
+        kunmap_atomic(kfrom, KM_USER1);
+        kunmap_atomic(kto, KM_USER0);
+}
+
 /*
  * ARMv4 optimised clear_user_page
  *
@@ -79,5 +90,5 @@ v4wb_clear_user_page(void *kaddr, unsigned long vaddr)
 
 struct cpu_user_fns v4wb_user_fns __initdata = {
         .cpu_clear_user_page    = v4wb_clear_user_page,
-        .cpu_copy_user_page     = v4wb_copy_user_page,
+        .cpu_copy_user_highpage = v4wb_copy_user_highpage,
 };