3756 want lz4 support for metadata compression

@@ -20,10 +20,11 @@
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  * Copyright (c) 2013 by Delphix. All rights reserved.
+ * Copyright (c) 2013 Martin Matuska. All rights reserved.
  */
 
 #include <sys/zfs_context.h>
 #include <sys/dmu.h>
 #include <sys/dmu_impl.h>

@@ -2680,11 +2681,11 @@
 
         if (db->db_blkid == DMU_SPILL_BLKID)
                 wp_flag = WP_SPILL;
         wp_flag |= (db->db_state == DB_NOFILL) ? WP_NOFILL : 0;
 
-        dmu_write_policy(os, dn, db->db_level, wp_flag, &zp);
+        dmu_write_policy(os, dn, db->db_level, wp_flag, &zp, txg);
         DB_DNODE_EXIT(db);
 
         if (db->db_level == 0 && dr->dt.dl.dr_override_state == DR_OVERRIDDEN) {
                 ASSERT(db->db_state != DB_NOFILL);
                 dr->dr_zio = zio_write(zio, os->os_spa, txg,