2750 	vdev_t *oldvd, *newvd, *pvd;  in ztest_vdev_attach_detach()  local
2787 	oldvd = rvd->vdev_child[top];  in ztest_vdev_attach_detach()
2789 		ASSERT(oldvd->vdev_ops == &vdev_mirror_ops);  in ztest_vdev_attach_detach()
2790 		ASSERT(oldvd->vdev_children >= zs->zs_mirrors);  in ztest_vdev_attach_detach()
2791 		oldvd = oldvd->vdev_child[leaf / ztest_opts.zo_raidz];  in ztest_vdev_attach_detach()
2794 		ASSERT(oldvd->vdev_ops == &vdev_raidz_ops);  in ztest_vdev_attach_detach()
2795 		ASSERT(oldvd->vdev_children == ztest_opts.zo_raidz);  in ztest_vdev_attach_detach()
2796 		oldvd = oldvd->vdev_child[leaf % ztest_opts.zo_raidz];  in ztest_vdev_attach_detach()
2803 	while (oldvd->vdev_children != 0) {  in ztest_vdev_attach_detach()
2805 		ASSERT(oldvd->vdev_children >= 2);  in ztest_vdev_attach_detach()
2806 		oldvd = oldvd->vdev_child[ztest_random(oldvd->vdev_children)];  in ztest_vdev_attach_detach()
2809 	oldguid = oldvd->vdev_guid;  in ztest_vdev_attach_detach()
2810 	oldsize = vdev_get_min_asize(oldvd);  in ztest_vdev_attach_detach()
2811 	oldvd_is_log = oldvd->vdev_top->vdev_islog;  in ztest_vdev_attach_detach()
2812 	(void) strcpy(oldpath, oldvd->vdev_path);  in ztest_vdev_attach_detach()
2813 	pvd = oldvd->vdev_parent;  in ztest_vdev_attach_detach()
2873 	else if (newvd == oldvd)  in ztest_vdev_attach_detach()
2879 	else if (ashift > oldvd->vdev_top->vdev_ashift)  in ztest_vdev_attach_detach()