x64/page.h: convert some macros to inlines

Convert clear_page/copy_page macros to inline functions for type-checking.
Andrew wants to extirpate these ugly macros. (Ingo too. Thomas as well.
Please send us more "kill ugly macros" patches! :-)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 16 insertions, 5 deletions

diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index d400167c5509..068b5e4cea4c 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -43,11 +43,22 @@
 extern unsigned long end_pfn;
 extern unsigned long end_pfn_map;
 
-void clear_page(void *);
-void copy_page(void *, void *);
-
-#define clear_user_page(page, vaddr, pg)        clear_page(page)
-#define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
+void clear_page(void *page);
+void copy_page(void *to, void *from);
+
+struct page;
+
+static void inline clear_user_page(void *page, unsigned long vaddr,
+                                struct page *pg)
+{
+        clear_page(page);
+}
+
+static void inline copy_user_page(void *to, void *from, unsigned long vaddr,
+                                struct page *topage)
+{
+        copy_page(to, from);
+}
 
 #define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
         alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)