1 files changed, 1 insertions, 2 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ab89d6f382d..bb7dc405634 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2315,8 +2315,7 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
          * from page cache lookup which is in HPAGE_SIZE units.
          */
         address = address & huge_page_mask(h);
-        pgoff = ((address - vma->vm_start) >> PAGE_SHIFT)
-                + (vma->vm_pgoff >> PAGE_SHIFT);
+        pgoff = vma_hugecache_offset(h, vma, address);
         mapping = (struct address_space *)page_private(page);
 
         /*