diff --git a/sys/vm/vm_radix.h b/sys/vm/vm_radix.h
--- a/sys/vm/vm_radix.h
+++ b/sys/vm/vm_radix.h
@@ -257,6 +257,19 @@
 	return (VM_RADIX_PCTRIE_ITER_STEP_GE(pages));
 }
 
+/*
+ * Initialize an iterator pointing to the page with the greatest pindex that is
+ * less than or equal to the specified pindex, or NULL if there are no such
+ * pages.  Return the page.
+ *
+ * Requires that access be externally synchronized by a lock.
+ */
+static __inline vm_page_t
+vm_radix_iter_lookup_le(struct pctrie_iter *pages, vm_pindex_t index)
+{
+	return (VM_RADIX_PCTRIE_ITER_LOOKUP_LE(pages, index));
+}
+
 /*
  * Update the iterator to point to the page with the pindex that is one greater
  * than the current pindex, or NULL if there is no such page.  Return the page.