3818 zpool status -x should report pools with removed l2arc devices
Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com>
Reviewed by: George Wilson <gwilson@zfsmail.com>

*** 20,29 ****
--- 20,30 ----
   */
  
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2012 by Delphix. All rights reserved.
+  * Copyright (c) 2013 Steven Hartland. All rights reserved.
   */
  
  /*
   * This file contains the functions which analyze the status of a pool.  This
   * include both the status of an active pool, as well as the status exported
*** 148,157 ****
--- 149,168 ----
                      vs->vs_write_errors +
                      vs->vs_checksum_errors))
                          return (B_TRUE);
          }
  
+         /*
+          * Check any L2 cache devs
+          */
+         if (nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_L2CACHE, &child,
+             &children) == 0) {
+                 for (c = 0; c < children; c++)
+                         if (find_vdev_problem(child[c], func))
+                                 return (B_TRUE);
+         }
+ 
          return (B_FALSE);
  }
  
  /*
   * Active pool health status.