linux-kernel - [PATCH 05 of 36] x86: unify pte

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Date:	Thu, 05 Feb 2009 11:30:47 -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 05 of 36] x86: unify pte_hidden

Impact: cleanup

Unify and demacro pte_hidden.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
 arch/x86/include/asm/pgtable.h    |    5 +++++
 arch/x86/include/asm/pgtable_32.h |    6 ------
 arch/x86/include/asm/pgtable_64.h |    6 ------
 3 files changed, 5 insertions(+), 12 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
@@ -478,6 +478,11 @@
 	return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE);
 }
 
+static inline int pte_hidden(pte_t pte)
+{
+	return pte_flags(pte) & _PAGE_HIDDEN;
+}
+
 #endif	/* __ASSEMBLY__ */
 
 #ifdef CONFIG_X86_32
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
@@ -85,12 +85,6 @@
 /* The boot page tables (all created as a single array) */
 extern unsigned long pg0[];
 
-#ifdef CONFIG_KMEMCHECK
-#define pte_hidden(x)	((x).pte_low & (_PAGE_HIDDEN))
-#else
-#define pte_hidden(x)	0
-#endif
-
 /* 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)
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
@@ -168,12 +168,6 @@
 	return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
 }
 
-#ifdef CONFIG_KMEMCHECK
-#define pte_hidden(x)	(pte_val((x)) & (_PAGE_HIDDEN))
-#else
-#define pte_hidden(x)	0
-#endif
-
 #define pages_to_mb(x)	((x) >> (20 - PAGE_SHIFT))   /* FIXME: is this right? */
 
 /*


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