linux-kernel - [PATCH 3 of 5] x86/pgtable.h: demacro ptep_set_access

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Date:	Fri, 01 Feb 2008 15:25:26 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>, Andi Kleen <ak@...e.de>,
	Jan Beulich <jbeulich@...ell.com>,
	Eduardo Pereira Habkost <ehabkost@...hat.com>,
	Ian Campbell <ijc@...lion.org.uk>,
	H Peter Anvin <hpa@...or.com>, Zach Amsden <zach@...are.com>
Subject: [PATCH 3 of 5] x86/pgtable.h: demacro ptep_set_access_flags

Signed-off-by: Jeremy Fitzhardinge <jeremy@...source.com>
---
 include/asm-x86/pgtable.h |   24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -287,6 +287,8 @@
 #define pte_update_defer(mm, addr, ptep)	do { } while (0)
 #endif
 
+#include <asm/tlbflush.h>
+
 /*
  * We only update the dirty/accessed state if we set
  * the dirty bit by hand in the kernel, since the hardware
@@ -295,16 +297,18 @@
  * bit at the same time.
  */
 #define  __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
-#define ptep_set_access_flags(vma, address, ptep, entry, dirty)		\
-({									\
-	int __changed = !pte_same(*(ptep), entry);			\
-	if (__changed && dirty) {					\
-		*ptep = entry;						\
-		pte_update_defer((vma)->vm_mm, (address), (ptep));	\
-		flush_tlb_page(vma, address);				\
-	}								\
-	__changed;							\
-})
+static inline int ptep_set_access_flags(struct vm_area_struct *vma,
+					unsigned long address, pte_t *ptep,
+					pte_t entry, int dirty)
+{
+	int changed = !pte_same(*ptep, entry);
+	if (changed && dirty) {
+		*ptep = entry;
+		pte_update_defer(vma->vm_mm, address, ptep);
+		flush_tlb_page(vma, address);
+	}
+	return changed;
+}
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define ptep_test_and_clear_young(vma, addr, ptep) ({			\


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