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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>
This commit is contained in:
Randy Dunlap 2008-01-30 13:31:09 +01:00 committed by Ingo Molnar
parent b23be399da
commit 6b4b05bd79
2 changed files with 48 additions and 10 deletions
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39
include/asm-x86/page_32.h
View File

@ -12,12 +12,21 @@
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/string.h>
#ifdef CONFIG_X86_USE_3DNOW
#include <asm/mmx.h>
#define clear_page(page) mmx_clear_page((void *)(page))
#define copy_page(to,from) mmx_copy_page(to,from)
static inline void clear_page(void *page)
{
mmx_clear_page(page);
}
static inline void copy_page(void *to, void *from)
{
mmx_copy_page(to, from);
}
#else
@ -26,13 +35,31 @@
* Maybe the K6-III ?
*/
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE)
static inline void clear_page(void *page)
{
memset(page, 0, PAGE_SIZE);
}
static inline void copy_page(void *to, void *from)
{
memcpy(to, from, PAGE_SIZE);
}
#endif
#define clear_user_page(page, vaddr, pg) clear_page(page)
#define copy_user_page(to, from, vaddr, pg) copy_page(to, 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)

19
include/asm-x86/page_64.h
View File

@ -43,11 +43,22 @@
extern unsigned long end_pfn;
extern unsigned long end_pfn_map;
void clear_page(void *);
void copy_page(void *, void *);
void clear_page(void *page);
void copy_page(void *to, void *from);
#define clear_user_page(page, vaddr, pg) clear_page(page)
#define copy_user_page(to, from, vaddr, pg) copy_page(to, 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)