11945 pool import performance regression due to repeated libshare initialization
Reviewed by: Sanjay Nadkarni <sanjay.nadkarni@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>
Reviewed by: Dan McDonald <danmcd@joyent.com>
Reviewed by: Jason King <jason.brian.king@gmail.com>

@@ -19,11 +19,11 @@
  * CDDL HEADER END
  */
 
 /*
  * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2014 Nexenta Systems, Inc.  All rights reserved.
+ * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
  * Copyright (c) 2016 by Delphix. All rights reserved.
  */
 
 /*
  * Share control API

@@ -1150,10 +1150,24 @@
                 free(impl_handle);
 
         }
 }
 
+/*
+ * sa_service(sa_handle_t handle)
+ *
+ * Returns the service for which the handle is currently initialized.
+ */
+int
+sa_service(sa_handle_t handle)
+{
+        if (handle == NULL)
+                return (0);
+
+        return (((sa_handle_impl_t)handle)->sa_service);
+}
+
 /*
  * sa_get_protocols(char **protocol)
  *      Get array of protocols that are supported
  *      Returns pointer to an allocated and NULL terminated
  *      array of strings.  Caller must free.