From d2bab05ac1f9a2f5ddcd2f3256237e5c47fc127f Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 10 May 2005 14:23:01 +0100 Subject: [PATCH] ARM: Move copy/clear user_page locking into implementation Move the locking for copy_user_page() and clear_user_page() into the implementations which require locking. For simple memcpy/ memset based implementations, the locking is extra overhead which is not necessary, and prevents preemption occuring. Signed-off-by: Russell King --- include/asm-arm/page.h | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/asm-arm/page.h b/include/asm-arm/page.h index d26d1574d97..019c45d7573 100644 --- a/include/asm-arm/page.h +++ b/include/asm-arm/page.h @@ -114,19 +114,8 @@ extern void __cpu_copy_user_page(void *to, const void *from, unsigned long user); #endif -#define clear_user_page(addr,vaddr,pg) \ - do { \ - preempt_disable(); \ - __cpu_clear_user_page(addr, vaddr); \ - preempt_enable(); \ - } while (0) - -#define copy_user_page(to,from,vaddr,pg) \ - do { \ - preempt_disable(); \ - __cpu_copy_user_page(to, from, vaddr); \ - preempt_enable(); \ - } while (0) +#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) +#define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr) #define clear_page(page) memzero((void *)(page), PAGE_SIZE) extern void copy_page(void *to, const void *from); -- cgit v1.2.3-70-g09d2