8115 parallel zfs mount

@@ -20,10 +20,11 @@
  */
 /*
  * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2011 Bayard G. Bell. All rights reserved.
  * Copyright 2013 Joyent, Inc. All rights reserved.
+ * Copyright (c) 2017 by Delphix. All rights reserved.
  */
 
 /*
  * VFS operations for High Sierra filesystem
  */

@@ -148,11 +149,11 @@
 static vfsdef_t vfw = {
         VFSDEF_VERSION,
         "hsfs",
         hsfsinit,
         /* We don't suppport remounting */
-        VSW_HASPROTO|VSW_STATS|VSW_CANLOFI,
+        VSW_HASPROTO|VSW_STATS|VSW_CANLOFI|VSW_MOUNTDEV,
         &hsfs_proto_opttbl
 };
 
 static struct modlfs modlfs = {
         &mod_fsops, "filesystem for HSFS", &vfw