8115 parallel zfs mount

@@ -23,10 +23,11 @@
  * Use is subject to license terms.
  */
 /*
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  * Copyright (c) 2017 by Delphix. All rights reserved.
+ * Copyright 2017 RackTop Systems.
  */
 
 #ifndef _SYS_TASKQ_IMPL_H
 #define _SYS_TASKQ_IMPL_H
 

@@ -33,10 +34,11 @@
 #include <sys/taskq.h>
 #include <sys/inttypes.h>
 #include <sys/vmem.h>
 #include <sys/list.h>
 #include <sys/kstat.h>
+#include <sys/rwlock.h>
 
 #ifdef  __cplusplus
 extern "C" {
 #endif