parisc: Purge TLB before setting PTE

[karo-tx-linux.git] / arch / parisc / include / asm / pgtable.h

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index c2c43f71468498828f924ebc54b9aa3f189ba95e..3a4ed9f91d5727a5293780967411328ae8cc6310 100644 (file)
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -65,9 +65,9 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
                unsigned long flags;                            \
                spin_lock_irqsave(&pa_tlb_lock, flags);         \
                old_pte = *ptep;                                \
-               set_pte(ptep, pteval);                          \
                if (pte_inserted(old_pte))                      \
                        purge_tlb_entries(mm, addr);            \
+               set_pte(ptep, pteval);                          \
                spin_unlock_irqrestore(&pa_tlb_lock, flags);    \
        } while (0)
 
@@ -478,8 +478,8 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned
                spin_unlock_irqrestore(&pa_tlb_lock, flags);
                return 0;
        }
-       set_pte(ptep, pte_mkold(pte));
        purge_tlb_entries(vma->vm_mm, addr);
+       set_pte(ptep, pte_mkold(pte));
        spin_unlock_irqrestore(&pa_tlb_lock, flags);
        return 1;
 }
@@ -492,9 +492,9 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 
        spin_lock_irqsave(&pa_tlb_lock, flags);
        old_pte = *ptep;
-       set_pte(ptep, __pte(0));
        if (pte_inserted(old_pte))
                purge_tlb_entries(mm, addr);
+       set_pte(ptep, __pte(0));
        spin_unlock_irqrestore(&pa_tlb_lock, flags);
 
        return old_pte;
@@ -504,8 +504,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
        unsigned long flags;
        spin_lock_irqsave(&pa_tlb_lock, flags);
-       set_pte(ptep, pte_wrprotect(*ptep));
        purge_tlb_entries(mm, addr);
+       set_pte(ptep, pte_wrprotect(*ptep));
        spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }