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-rw-r--r--include/asm-s390/pgtable.h43
1 files changed, 19 insertions, 24 deletions
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index 26215a976127..1039bf6b657f 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -707,16 +707,19 @@ static inline void __ptep_ipte(unsigned long address, pte_t *ptep)
707 pte_val(*ptep) = _PAGE_TYPE_EMPTY; 707 pte_val(*ptep) = _PAGE_TYPE_EMPTY;
708} 708}
709 709
710static inline pte_t 710static inline void ptep_invalidate(unsigned long address, pte_t *ptep)
711ptep_clear_flush(struct vm_area_struct *vma,
712 unsigned long address, pte_t *ptep)
713{ 711{
714 pte_t pte = *ptep;
715 pte_t *shadow_pte = get_shadow_pte(ptep);
716
717 __ptep_ipte(address, ptep); 712 __ptep_ipte(address, ptep);
718 if (shadow_pte) 713 ptep = get_shadow_pte(ptep);
719 __ptep_ipte(address, shadow_pte); 714 if (ptep)
715 __ptep_ipte(address, ptep);
716}
717
718static inline pte_t ptep_clear_flush(struct vm_area_struct *vma,
719 unsigned long address, pte_t *ptep)
720{
721 pte_t pte = *ptep;
722 ptep_invalidate(address, ptep);
720 return pte; 723 return pte;
721} 724}
722 725
@@ -726,21 +729,14 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
726 set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte)); 729 set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
727} 730}
728 731
729static inline void 732#define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \
730ptep_establish(struct vm_area_struct *vma, 733({ \
731 unsigned long address, pte_t *ptep, 734 int __changed = !pte_same(*(__ptep), __entry); \
732 pte_t entry) 735 if (__changed) { \
733{ 736 ptep_invalidate(__addr, __ptep); \
734 ptep_clear_flush(vma, address, ptep); 737 set_pte_at((__vma)->vm_mm, __addr, __ptep, __entry); \
735 set_pte(ptep, entry); 738 } \
736} 739 __changed; \
737
738#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
739({ \
740 int __changed = !pte_same(*(__ptep), __entry); \
741 if (__changed) \
742 ptep_establish(__vma, __address, __ptep, __entry); \
743 __changed; \
744}) 740})
745 741
746/* 742/*
@@ -940,7 +936,6 @@ extern int remove_shared_memory(unsigned long start, unsigned long size);
940#define __HAVE_ARCH_MEMMAP_INIT 936#define __HAVE_ARCH_MEMMAP_INIT
941extern void memmap_init(unsigned long, int, unsigned long, unsigned long); 937extern void memmap_init(unsigned long, int, unsigned long, unsigned long);
942 938
943#define __HAVE_ARCH_PTEP_ESTABLISH
944#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS 939#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
945#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG 940#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
946#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH 941#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH