diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index e0fda15..db861d8 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -699,6 +699,11 @@
 		dst_pte = huge_pte_alloc(dst, addr);
 		if (!dst_pte)
 			goto nomem;
+
+		/* If the pagetables are shared don't copy or take references */
+		if (dst_pte == src_pte)
+			continue;
+
 		spin_lock(&dst->page_table_lock);
 		spin_lock(&src->page_table_lock);
 		if (!pte_none(*src_pte)) {