1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 /*
  27  * Copyright (c) 2012 by Delphix. All rights reserved.
  28  */
  29 
  30 /* LINTLIBRARY */
  31 /* PROTOLIB1 */
  32 
  33 #include <sys/zfs_context.h>
  34 #include <sys/list.h>
  35 #include <sys/list_impl.h>
  36 #include <sys/sysmacros.h>
  37 #include <sys/debug.h>
  38 #include <sys/dmu_traverse.h>
  39 #include <sys/dnode.h>
  40 #include <sys/dsl_prop.h>
  41 #include <sys/dsl_dataset.h>
  42 #include <sys/spa.h>
  43 #include <sys/spa_impl.h>
  44 #include <sys/space_map.h>
  45 #include <sys/vdev.h>
  46 #include <sys/vdev_impl.h>
  47 #include <sys/zap.h>
  48 #include <sys/zio.h>
  49 #include <sys/zio_compress.h>
  50 #include <sys/zil.h>
  51 #include <sys/bplist.h>
  52 #include <sys/zfs_znode.h>
  53 #include <sys/arc.h>
  54 #include <sys/dbuf.h>
  55 #include <sys/zio_checksum.h>
  56 #include <sys/ddt.h>
  57 #include <sys/sa.h>
  58 #include <sys/zfs_sa.h>
  59 #include <sys/zfeature.h>
  60 #include <sys/dmu_tx.h>
  61 #include <sys/dsl_destroy.h>
  62 #include <sys/dsl_userhold.h>
  63 
  64 extern uint64_t metaslab_gang_bang;
  65 extern uint64_t metaslab_df_alloc_threshold;
  66 extern boolean_t zfeature_checks_disable;