lkml.org 
[lkml]   [2008]   [Jan]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] [28/36] CPA: Remove unnecessary masking of address
Date

virt_to_page does not care about the bits below the page granuality.
So don't mask them.

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>

---
arch/x86/mm/pageattr_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/arch/x86/mm/pageattr_64.c
===================================================================
--- linux.orig/arch/x86/mm/pageattr_64.c
+++ linux/arch/x86/mm/pageattr_64.c
@@ -204,7 +204,7 @@ __change_page_attr(unsigned long address

kpte = lookup_address(address, &level);
if (!kpte) return 0;
- kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK);
+ kpte_page = virt_to_page(kpte);
BUG_ON(PageCompound(kpte_page));
BUG_ON(PageLRU(kpte_page));


\
 
 \ /
  Last update: 2008-01-16 23:29    [W:0.119 / U:10.112 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site