[PATCH v2 04/14] mm: filemap: filemap_fault_recheck_pte_none() use pte_offset_map_ro_nolock()

[Qi Zheng]

In filemap_fault_recheck_pte_none(), we just do pte_none() check, so
convert it to using pte_offset_map_ro_nolock().

Signed-off-by: Qi Zheng <zhengqi.a...@bytedance.com>
---
 mm/filemap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index 0f13126b43b08..c98da9af6b9bd 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3234,8 +3234,8 @@ static vm_fault_t filemap_fault_recheck_pte_none(struct 
vm_fault *vmf)
        if (!(vmf->flags & FAULT_FLAG_ORIG_PTE_VALID))
                return 0;
 
-       ptep = pte_offset_map_nolock(vma->vm_mm, vmf->pmd, vmf->address,
-                                    &vmf->ptl);
+       ptep = pte_offset_map_ro_nolock(vma->vm_mm, vmf->pmd, vmf->address,
+                                       &vmf->ptl);
        if (unlikely(!ptep))
                return VM_FAULT_NOPAGE;
 
-- 
2.20.1