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ARM: Pass VMA to copy_user_highpage() implementations

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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 <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2009-10-05 15:17:45 +01:00
parent 8a0382f6fc
commit f00a75c094
9 changed files with 13 additions and 12 deletions
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7
arch/arm/include/asm/page.h
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@@ -117,11 +117,12 @@
#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
@@ -137,7 +138,7 @@ extern struct cpu_user_fns cpu_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) \
@@ -145,7 +146,7 @@ extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
#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);