Commit f9fbf1a3 authored Mar 17, 2008 by Jeremy Fitzhardinge Committed by Ingo Molnar Apr 24, 2008

x86/pgtable.h: demacro ptep_test_and_clear_young



Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent ee5aa8d3

arch/x86/mm/pgtable.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -280,3 +280,18 @@ int ptep_set_access_flags(struct vm_area_struct *vma,

		return changed;
		}

		int ptep_test_and_clear_young(struct vm_area_struct *vma,
		unsigned long addr, pte_t *ptep)
		{
		int ret = 0;

		if (pte_young(*ptep))
		ret = test_and_clear_bit(_PAGE_BIT_ACCESSED,
		&ptep->pte);

		if (ret)
		pte_update(vma->vm_mm, addr, ptep);

		return ret;
		}

include/asm-x86/pgtable.h

+2 −9

Original line number	Diff line number	Diff line
		@@ -394,15 +394,8 @@ extern int ptep_set_access_flags(struct vm_area_struct *vma,
		pte_t entry, int dirty);

		#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
		#define ptep_test_and_clear_young(vma, addr, ptep) ({ \
		int __ret = 0; \
		if (pte_young(*(ptep))) \
		__ret = test_and_clear_bit(_PAGE_BIT_ACCESSED, \
		&(ptep)->pte); \
		if (__ret) \
		pte_update((vma)->vm_mm, addr, ptep); \
		__ret; \
		})
		extern int ptep_test_and_clear_young(struct vm_area_struct *vma,
		unsigned long addr, pte_t *ptep);

		#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
		#define ptep_clear_flush_young(vma, address, ptep) \