diff mbox series

[v3,04/14] mm: filemap: filemap_fault_recheck_pte_none() use pte_offset_map_ro_nolock()

Message ID 20240904084022.32728-5-zhengqi.arch@bytedance.com (mailing list archive)
State New, archived
Headers show
Series introduce pte_offset_map_{ro|rw}_nolock() | expand

Commit Message

Qi Zheng Sept. 4, 2024, 8:40 a.m. UTC 
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.arch@bytedance.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
---
 mm/filemap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/mm/filemap.c b/mm/filemap.c
index 20346df53df3b..216405ba497ea 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3251,8 +3251,8 @@  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;