diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -1610,6 +1610,29 @@
 		vm_object_set_writeable_dirty(object);
 }
 
+/*
+ *      vm_page_insert_batch:
+ *
+ *      Inserts page array "ma" into the specified object
+ *      starting at offset "pindex".
+ *
+ *      The object must be locked.
+ */
+static __always_inline int
+vm_page_insert_batch(vm_object_t object, struct pctrie_iter *it,
+    vm_page_t *ma, vm_pindex_t pindex, int npages)
+{
+	int ninserted;
+
+	VM_OBJECT_ASSERT_WLOCKED(object);
+
+	ninserted = vm_radix_insert_batch(it, ma, pindex, npages);
+	if (ninserted > 0)
+		vm_page_insert_radixdone_batch(object, ma, ninserted);
+
+	return (ninserted);
+}
+
 /*
  * Do the work to remove a page from its object.  The caller is responsible for
  * updating the page's fields to reflect this removal.
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
@@ -79,6 +79,18 @@
 	return (VM_RADIX_PCTRIE_ITER_INSERT(pages, page));
 }
 
+/*
+ * Inserts an array of pages into the trie.
+ * Panics if any of the keys already exist.
+ * Returns the number of inserted pages.
+ */
+static __inline int
+vm_radix_insert_batch(struct pctrie_iter *it, vm_page_t *ma,
+    vm_pindex_t pindex, int npages)
+{
+	return (VM_RADIX_PCTRIE_INSERT_BATCH(it, ma, pindex, npages));
+}
+
 /*
  * Insert the page into the vm_radix tree with its pindex as the key.  Panic if
  * the pindex already exists.  Return zero on success or a non-zero error on