diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 38df8d824569..cad5e46339f6 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5340,6 +5340,7 @@ void hugetlb_unshare_all_pmds(struct vm_area_struct *vma)
 	if (start >= end)
 		return;
 
+	flush_cache_range(vma, start, end);
 	/*
 	 * No need to call adjust_range_if_pmd_sharing_possible(), because
 	 * we have already done the PUD_SIZE alignment.