linux-kernel - [PATCH 3/4] Trivial move of ptep_set_access

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Date:	Thu, 03 Aug 2006 17:43:57 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@....de>
Subject: [PATCH 3/4] Trivial move of ptep_set_access_flags

Move ptep_set_access_flags to be closer to the other ptep accessors,
and make the indentation standard.

Signed-off-by: Zachary Amsden <zach@...are.com>
Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>

diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal working-2.6.18-rc2-mm1-zach-2/include/asm-i386/pgtable.h working-2.6.18-rc2-mm1-zach-3/include/asm-i386/pgtable.h
--- working-2.6.18-rc2-mm1-zach-2/include/asm-i386/pgtable.h	2006-08-03 17:28:26.000000000 +1000
+++ working-2.6.18-rc2-mm1-zach-3/include/asm-i386/pgtable.h	2006-08-03 17:29:59.000000000 +1000
@@ -246,6 +246,22 @@ static inline pte_t pte_mkhuge(pte_t pte
 # include <asm/pgtable-2level.h>
 #endif
 
+/*
+ * We only update the dirty/accessed state if we set
+ * the dirty bit by hand in the kernel, since the hardware
+ * will do the accessed bit for us, and we don't want to
+ * race with other CPU's that might be updating the dirty
+ * bit at the same time.
+ */
+#define  __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
+#define ptep_set_access_flags(vma, address, ptep, entry, dirty)		\
+do {									\
+	if (dirty) {							\
+		(ptep)->pte_low = (entry).pte_low;			\
+		flush_tlb_page(vma, address);				\
+	}								\
+} while (0)
+
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
 static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
 {
@@ -415,23 +431,8 @@ extern void noexec_setup(const char *str
 /*
  * The i386 doesn't have any external MMU info: the kernel page
  * tables contain all the necessary information.
- *
- * Also, we only update the dirty/accessed state if we set
- * the dirty bit by hand in the kernel, since the hardware
- * will do the accessed bit for us, and we don't want to
- * race with other CPU's that might be updating the dirty
- * bit at the same time.
  */
 #define update_mmu_cache(vma,address,pte) do { } while (0)
-#define  __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
-#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
-	do {								  \
-		if (__dirty) {						  \
-			(__ptep)->pte_low = (__entry).pte_low;	  	  \
-			flush_tlb_page(__vma, __address);		  \
-		}							  \
-	} while (0)
-
 #endif /* !__ASSEMBLY__ */
 
 #ifdef CONFIG_FLATMEM

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