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-rw-r--r--mm/hugetlb.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ab89d6f382d1..bb7dc405634f 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);
/*