fs/zfs/vdev.c

431 vdev_add_child(vdev_t *pvd, vdev_t *cvd)
434 	uint64_t id = cvd->vdev_id;
436 	spa_t *spa = cvd->vdev_spa;
439 	ASSERT(cvd->vdev_parent == NULL);
441 	cvd->vdev_parent = pvd;
459 	pvd->vdev_child[id] = cvd;
461 	cvd->vdev_top = (pvd->vdev_top ? pvd->vdev_top: cvd);
462 	ASSERT(cvd->vdev_top->vdev_parent->vdev_parent == NULL);
468 		pvd->vdev_guid_sum += cvd->vdev_guid_sum;
472 vdev_remove_child(vdev_t *pvd, vdev_t *cvd)
475 	uint_t id = cvd->vdev_id;
477 	ASSERT(cvd->vdev_parent == pvd);
483 	ASSERT(pvd->vdev_child[id] == cvd);
486 	cvd->vdev_parent = NULL;
502 		pvd->vdev_guid_sum -= cvd->vdev_guid_sum;
511 	vdev_t **newchild, *cvd;
528 			if ((cvd = pvd->vdev_child[c]) != NULL) {
529 				newchild[newc] = cvd;
530 				cvd->vdev_id = newc++;
1102 vdev_add_parent(vdev_t *cvd, vdev_ops_t *ops)
1104 	spa_t *spa = cvd->vdev_spa;
1105 	vdev_t *pvd = cvd->vdev_parent;
1110 	mvd = vdev_alloc_common(spa, cvd->vdev_id, 0, ops);
1112 	mvd->vdev_asize = cvd->vdev_asize;
1113 	mvd->vdev_min_asize = cvd->vdev_min_asize;
1114 	mvd->vdev_max_asize = cvd->vdev_max_asize;
1115 	mvd->vdev_psize = cvd->vdev_psize;
1116 	mvd->vdev_ashift = cvd->vdev_ashift;
1117 	mvd->vdev_logical_ashift = cvd->vdev_logical_ashift;
1118 	mvd->vdev_physical_ashift = cvd->vdev_physical_ashift;
1119 	mvd->vdev_state = cvd->vdev_state;
1120 	mvd->vdev_crtxg = cvd->vdev_crtxg;
1122 	vdev_remove_child(pvd, cvd);
1124 	cvd->vdev_id = mvd->vdev_children;
1125 	vdev_add_child(mvd, cvd);
1126 	vdev_top_update(cvd->vdev_top, cvd->vdev_top);
1129 		vdev_top_transfer(cvd, mvd);
1138 vdev_remove_parent(vdev_t *cvd)
1140 	vdev_t *mvd = cvd->vdev_parent;
1143 	ASSERT(spa_config_held(cvd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL);
1149 	cvd->vdev_ashift = mvd->vdev_ashift;
1150 	cvd->vdev_logical_ashift = mvd->vdev_logical_ashift;
1151 	cvd->vdev_physical_ashift = mvd->vdev_physical_ashift;
1153 	vdev_remove_child(mvd, cvd);
1157 	 * If cvd will replace mvd as a top-level vdev, preserve mvd's guid.
1163 		uint64_t guid_delta = mvd->vdev_guid - cvd->vdev_guid;
1164 		cvd->vdev_orig_guid = cvd->vdev_guid;
1165 		cvd->vdev_guid += guid_delta;
1166 		cvd->vdev_guid_sum += guid_delta;
1168 	cvd->vdev_id = mvd->vdev_id;
1169 	vdev_add_child(pvd, cvd);
1170 	vdev_top_update(cvd->vdev_top, cvd->vdev_top);
1172 	if (cvd == cvd->vdev_top)
1173 		vdev_top_transfer(mvd, cvd);
2595 			vdev_t *cvd = vd->vdev_child[c];
2596 			mutex_enter(&cvd->vdev_dtl_lock);
2597 			space_reftree_add_map(&reftree, cvd->vdev_dtl[s], 1);
2598 			mutex_exit(&cvd->vdev_dtl_lock);
2824 			vdev_t *cvd = vd->vdev_child[c];
2827 			if (vdev_resilver_needed(cvd, &cmin, &cmax)) {
3674 			vdev_t *cvd = rvd->vdev_child[c];
3675 			vdev_stat_t *cvs = &cvd->vdev_stat;
3681 			cvs->vs_scan_removing = cvd->vdev_removing;
4326 	vdev_t *cvd, *pvd = vd->vdev_parent;
4331 	cvd = pvd->vdev_child[0];
4333 		vdev_remove_parent(cvd);
4334 		cvd->vdev_splitting = B_TRUE;
4336 	vdev_propagate_state(cvd);
4343 		vdev_t *cvd = vd->vdev_child[c];
4345 		vdev_deadman(cvd);