sparc: huge_ptep_set_* functions need to call set_huge_pte_at()

Modifying the huge pte's requires that all the underlying pte's be
modified.

Version 2: added missing flush_tlb_page()

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 2 deletions

diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 8c5eed6d267f..9661e9bc7bb6 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -61,14 +61,20 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
                                            unsigned long addr, pte_t *ptep)
 {
-        ptep_set_wrprotect(mm, addr, ptep);
+        pte_t old_pte = *ptep;
+        set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
                                              unsigned long addr, pte_t *ptep,
                                              pte_t pte, int dirty)
 {
-        return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+        int changed = !pte_same(*ptep, pte);
+        if (changed) {
+                set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+                flush_tlb_page(vma, addr);
+        }
+        return changed;
 }
 
 static inline pte_t huge_ptep_get(pte_t *ptep)