diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index bb3328f46126..ff8d6f6af896 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -811,13 +811,36 @@ static void __init pmd_swap_soft_dirty_tests(struct pgtable_debug_args *args) {
 static void __init pte_swap_exclusive_tests(struct pgtable_debug_args *args)
 {
 #ifdef __HAVE_ARCH_PTE_SWP_EXCLUSIVE
-	pte_t pte = pfn_pte(args->fixed_pte_pfn, args->page_prot);
+	unsigned long max_swap_offset;
+	swp_entry_t entry, entry2;
+	pte_t pte;
 
 	pr_debug("Validating PTE swap exclusive\n");
+
+	/* See generic_max_swapfile_size(): probe the maximum offset */
+	max_swap_offset = swp_offset(pte_to_swp_entry(swp_entry_to_pte(swp_entry(0, ~0UL))));
+
+	/* Create a swp entry with all possible bits set */
+	entry = swp_entry((1 << MAX_SWAPFILES_SHIFT) - 1, max_swap_offset);
+
+	pte = swp_entry_to_pte(entry);
+	WARN_ON(pte_swp_exclusive(pte));
+	WARN_ON(!is_swap_pte(pte));
+	entry2 = pte_to_swp_entry(pte);
+	WARN_ON(memcmp(&entry, &entry2, sizeof(entry)));
+
 	pte = pte_swp_mkexclusive(pte);
 	WARN_ON(!pte_swp_exclusive(pte));
+	WARN_ON(!is_swap_pte(pte));
+	WARN_ON(pte_swp_soft_dirty(pte));
+	entry2 = pte_to_swp_entry(pte);
+	WARN_ON(memcmp(&entry, &entry2, sizeof(entry)));
+
 	pte = pte_swp_clear_exclusive(pte);
 	WARN_ON(pte_swp_exclusive(pte));
+	WARN_ON(!is_swap_pte(pte));
+	entry2 = pte_to_swp_entry(pte);
+	WARN_ON(memcmp(&entry, &entry2, sizeof(entry)));
 #endif /* __HAVE_ARCH_PTE_SWP_EXCLUSIVE */
 }