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Commit f9fbf1a3 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Ingo Molnar
Browse files

x86/pgtable.h: demacro ptep_test_and_clear_young 



Signed-off-by: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas 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)			\