From a3ae91b0a02a4ca0088f30d572c848f5d522573a Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:50 +0100
Subject: [PATCH] x86: cpa: remove unnecessary masking of address

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>
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pageattr_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index b21a874c2dd3..4d172881af70 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -148,7 +148,7 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
 	if (!kpte)
 		return 0;
 
-	kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK);
+	kpte_page = virt_to_page(kpte);
 	BUG_ON(PageLRU(kpte_page));
 	BUG_ON(PageCompound(kpte_page));
 	if (pgprot_val(prot) != pgprot_val(ref_prot)) {
-- 
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