diff --git a/core/lib/Drupal/Core/Cache/DatabaseBackend.php b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
index db5c2f0..8630330 100644
--- a/core/lib/Drupal/Core/Cache/DatabaseBackend.php
+++ b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
@@ -19,7 +19,7 @@
  *
  * @ingroup cache
  */
-class DatabaseBackend implements CacheBackendInterface {
+class DatabaseBackend implements CacheBackendInterface, ConfigurablePermanentTtlInterface {
 
   /**
    * @var string
@@ -42,6 +42,11 @@ class DatabaseBackend implements CacheBackendInterface {
   protected $checksumProvider;
 
   /**
+   * The minimum permanent TTL.
+   */
+  protected $minimumPermanentTtl = CacheBackendInterface::CACHE_PERMANENT;
+
+  /**
    * Constructs a DatabaseBackend object.
    *
    * @param \Drupal\Core\Database\Connection $connection
@@ -194,8 +199,10 @@ protected function doSetMultiple(array $items) {
     $values = array();
 
     foreach ($items as $cid => $item) {
+      if (!isset($item['expire'] || $item['expire'] === CacheBackendInterface::CACHE_PERMANENT))  {
+        $item['expire'] = $this->maximumPermanentTtl;
+      }
       $item += array(
-        'expire' => CacheBackendInterface::CACHE_PERMANENT,
         'tags' => array(),
       );
 
@@ -356,6 +363,13 @@ public function removeBin() {
   }
 
   /**
+   * {@inheritdoc}
+   */
+  function setMinimumPermamentTtl($ttl) {
+    $this->minimumPermanentTtl = $ttl;
+  }
+
+  /**
    * Check if the cache bin exists and create it if not.
    */
   protected function ensureBinExists() {