Modifying the huge pte's requires that all the underlying pte's be
modified.
Signed-off-by: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: sparclinux@xxxxxxxxxxxxxxx
---
arch/sparc/include/asm/hugetlb.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 8c5eed6..ef3fce5 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -61,14 +61,18 @@ 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);
+ return changed;
}
static inline pte_t huge_ptep_get(pte_t *ptep)
--
1.8.0.1
--
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