[tip:x86/urgent] Xen: Add virt_to_pfn helper function

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Commit-ID:  b40bf53effc0338ad7926aa1abce703af372cbd4
Gitweb:     http://git.kernel.org/tip/b40bf53effc0338ad7926aa1abce703af372cbd4
Author:     Alex Nixon <alex.nixon@xxxxxxxxxx>
AuthorDate: Mon, 9 Feb 2009 12:05:46 -0800
Committer:  Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
CommitDate: Wed, 8 Apr 2009 11:51:46 -0700

Xen: Add virt_to_pfn helper function

Signed-off-by: Alex Nixon <alex.nixon@xxxxxxxxxx>


---
 arch/x86/include/asm/xen/page.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 1a918dd..018a0a4 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -124,7 +124,8 @@ static inline unsigned long mfn_to_local_pfn(unsigned long mfn)
 
 /* VIRT <-> MACHINE conversion */
 #define virt_to_machine(v)	(phys_to_machine(XPADDR(__pa(v))))
-#define virt_to_mfn(v)		(pfn_to_mfn(PFN_DOWN(__pa(v))))
+#define virt_to_pfn(v)          (PFN_DOWN(__pa(v)))
+#define virt_to_mfn(v)		(pfn_to_mfn(virt_to_pfn(v)))
 #define mfn_to_virt(m)		(__va(mfn_to_pfn(m) << PAGE_SHIFT))
 
 static inline unsigned long pte_mfn(pte_t pte)
--
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