diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-31 16:32:19 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-11-27 23:53:48 +0000 |
| commit | 303c6443659bc1dc911356f5de149f48ff1d97b8 (patch) | |
| tree | 75da0aef28ec8e843cdeb24c96349bdf812e2740 /arch/arm/include | |
| parent | 063b0a4207e43acbeff3d4b09f43e750e0212b48 (diff) | |
| download | linux-303c6443659bc1dc911356f5de149f48ff1d97b8.tar.gz linux-303c6443659bc1dc911356f5de149f48ff1d97b8.tar.bz2 linux-303c6443659bc1dc911356f5de149f48ff1d97b8.zip | |
[ARM] clearpage: provide our own clear_user_highpage()
For similar reasons as copy_user_page(), we want to avoid the
additional kmap_atomic if it's unnecessary.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/page.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h index 1581b8cf8f33..77747df713b4 100644 --- a/arch/arm/include/asm/page.h +++ b/arch/arm/include/asm/page.h @@ -111,7 +111,7 @@ struct page; struct cpu_user_fns { - void (*cpu_clear_user_page)(void *p, unsigned long user); + 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); }; @@ -119,20 +119,21 @@ struct cpu_user_fns { #ifdef MULTI_USER extern struct cpu_user_fns cpu_user; -#define __cpu_clear_user_page cpu_user.cpu_clear_user_page +#define __cpu_clear_user_highpage cpu_user.cpu_clear_user_highpage #define __cpu_copy_user_highpage cpu_user.cpu_copy_user_highpage #else -#define __cpu_clear_user_page __glue(_USER,_clear_user_page) +#define __cpu_clear_user_highpage __glue(_USER,_clear_user_highpage) #define __cpu_copy_user_highpage __glue(_USER,_copy_user_highpage) -extern void __cpu_clear_user_page(void *p, unsigned long 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); #endif -#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) +#define clear_user_highpage(page,vaddr) \ + __cpu_clear_user_highpage(page, vaddr) #define __HAVE_ARCH_COPY_USER_HIGHPAGE #define copy_user_highpage(to,from,vaddr,vma) \ |