linux-kernel - [PATCH 08 of 36] x86: unify pmd

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Date:	Thu, 05 Feb 2009 11:30:50 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	the arch/x86 maintainers <x86@...nel.org>
Subject: [PATCH 08 of 36] x86: unify pmd_present

Impact: cleanup

Unify and demacro pmd_present.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
 arch/x86/include/asm/pgtable.h    |    5 +++++
 arch/x86/include/asm/pgtable_32.h |    1 -
 arch/x86/include/asm/pgtable_64.h |    1 -
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -483,6 +483,11 @@
 	return pte_flags(pte) & _PAGE_HIDDEN;
 }
 
+static inline int pmd_present(pmd_t pmd)
+{
+	return pmd_val(pmd) & _PAGE_PRESENT;
+}
+
 #if PAGETABLE_LEVELS > 2
 static inline int pud_present(pud_t pud)
 {
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
--- a/arch/x86/include/asm/pgtable_32.h
+++ b/arch/x86/include/asm/pgtable_32.h
@@ -87,7 +87,6 @@
 
 /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */
 #define pmd_none(x)	(!(unsigned long)pmd_val((x)))
-#define pmd_present(x)	(pmd_val((x)) & _PAGE_PRESENT)
 #define pmd_bad(x) ((pmd_val(x) & (PTE_FLAGS_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
 
 #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -207,7 +207,6 @@
 #define pmd_offset(dir, address) ((pmd_t *)pud_page_vaddr(*(dir)) + \
 				  pmd_index(address))
 #define pmd_none(x)	(!pmd_val((x)))
-#define pmd_present(x)	(pmd_val((x)) & _PAGE_PRESENT)
 #define pfn_pmd(nr, prot) (__pmd(((nr) << PAGE_SHIFT) | pgprot_val((prot))))
 #define pmd_pfn(x)  ((pmd_val((x)) & __PHYSICAL_MASK) >> PAGE_SHIFT)
 


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