+vdev_remove(vdev_t *vd, uint64_t txg)
+{
+ spa_t *spa = vd->vdev_spa;
+ objset_t *mos = spa->spa_meta_objset;
+ dmu_tx_t *tx;
+ int m;
+
+ tx = dmu_tx_create_assigned(spa_get_dsl(spa), txg);
+
+ if (vd->vdev_dtl_smo.smo_object) {
+ ASSERT3U(vd->vdev_dtl_smo.smo_alloc, ==, 0);
+ (void) dmu_object_free(mos, vd->vdev_dtl_smo.smo_object, tx);
+ vd->vdev_dtl_smo.smo_object = 0;
+ }
+
+ if (vd->vdev_ms != NULL) {
+ for (m = 0; m < vd->vdev_ms_count; m++) {
+ metaslab_t *msp = vd->vdev_ms[m];
+
+ if (msp == NULL || msp->ms_smo.smo_object == 0)
+ continue;
+
+ ASSERT3U(msp->ms_smo.smo_alloc, ==, 0);
+ (void) dmu_object_free(mos, msp->ms_smo.smo_object, tx);
+ msp->ms_smo.smo_object = 0;
+ }
+ }
+
+ if (vd->vdev_ms_array) {
+ (void) dmu_object_free(mos, vd->vdev_ms_array, tx);
+ vd->vdev_ms_array = 0;
+ vd->vdev_ms_shift = 0;
+ }
+ dmu_tx_commit(tx);
+}
+
+void