Illumos #1748: desire support for reguid in zfs

[zfs.git] / module / zfs / vdev.c

diff --git a/module/zfs/vdev.c b/module/zfs/vdev.c
index 9f044b6..18d2d5c 100644 (file)
--- a/module/zfs/vdev.c
+++ b/module/zfs/vdev.c
@@ -21,6 +21,8 @@
 
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
+ * Copyright (c) 2011 by Delphix. All rights reserved.
  */
 
 #include <sys/zfs_context.h>
@@ -291,6 +293,7 @@ vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, vdev_ops_t *ops)
        if (spa->spa_root_vdev == NULL) {
                ASSERT(ops == &vdev_root_ops);
                spa->spa_root_vdev = vd;
+               spa->spa_load_guid = spa_generate_guid(NULL);
        }
 
        if (guid == 0 && ops != &vdev_hole_ops) {
@@ -492,7 +495,7 @@ vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, uint_t id,
                    &vd->vdev_removing);
        }
 
-       if (parent && !parent->vdev_parent) {
+       if (parent && !parent->vdev_parent && alloctype != VDEV_ALLOC_ATTACH) {
                ASSERT(alloctype == VDEV_ALLOC_LOAD ||
                    alloctype == VDEV_ALLOC_ADD ||
                    alloctype == VDEV_ALLOC_SPLIT ||
@@ -669,6 +672,8 @@ vdev_top_transfer(vdev_t *svd, vdev_t *tvd)
        svd->vdev_ms_shift = 0;
        svd->vdev_ms_count = 0;
 
+       if (tvd->vdev_mg)
+               ASSERT3P(tvd->vdev_mg, ==, svd->vdev_mg);
        tvd->vdev_mg = svd->vdev_mg;
        tvd->vdev_ms = svd->vdev_ms;