269 	mirror_child_t *mc;  in vdev_mirror_map_init()  local
328 			mc = &mm->mm_child[c];  in vdev_mirror_map_init()
330 			mc->mc_vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[c]));  in vdev_mirror_map_init()
331 			mc->mc_offset = DVA_GET_OFFSET(&dva[c]);  in vdev_mirror_map_init()
332 			if (mc->mc_vd == NULL) {  in vdev_mirror_map_init()
375 			mc = &mm->mm_child[c];  in vdev_mirror_map_init()
376 			mc->mc_vd = vd->vdev_child[c];  in vdev_mirror_map_init()
377 			mc->mc_offset = zio->io_offset;  in vdev_mirror_map_init()
379 			if (vdev_mirror_rebuilding(mc->mc_vd))  in vdev_mirror_map_init()
380 				mm->mm_rebuilding = mc->mc_rebuilding = B_TRUE;  in vdev_mirror_map_init()
444 	mirror_child_t *mc = zio->io_private;  in vdev_mirror_child_done()  local
446 	mc->mc_error = zio->io_error;  in vdev_mirror_child_done()
447 	mc->mc_tried = 1;  in vdev_mirror_child_done()
448 	mc->mc_skipped = 0;  in vdev_mirror_child_done()
497 vdev_mirror_child_readable(mirror_child_t *mc)  in vdev_mirror_child_readable()  argument
499 	vdev_t *vd = mc->mc_vd;  in vdev_mirror_child_readable()
502 		return (vdev_draid_readable(vd, mc->mc_offset));  in vdev_mirror_child_readable()
508 vdev_mirror_child_missing(mirror_child_t *mc, uint64_t txg, uint64_t size)  in vdev_mirror_child_missing()  argument
510 	vdev_t *vd = mc->mc_vd;  in vdev_mirror_child_missing()
513 		return (vdev_draid_missing(vd, mc->mc_offset, txg, size));  in vdev_mirror_child_missing()
540 		mirror_child_t *mc;  in vdev_mirror_child_select()  local
542 		mc = &mm->mm_child[c];  in vdev_mirror_child_select()
543 		if (mc->mc_tried || mc->mc_skipped)  in vdev_mirror_child_select()
546 		if (mc->mc_vd == NULL ||  in vdev_mirror_child_select()
547 		    !vdev_mirror_child_readable(mc)) {  in vdev_mirror_child_select()
548 			mc->mc_error = SET_ERROR(ENXIO);  in vdev_mirror_child_select()
549 			mc->mc_tried = 1;	/* don't even try */  in vdev_mirror_child_select()
550 			mc->mc_skipped = 1;  in vdev_mirror_child_select()
554 		if (vdev_mirror_child_missing(mc, txg, 1)) {  in vdev_mirror_child_select()
555 			mc->mc_error = SET_ERROR(ESTALE);  in vdev_mirror_child_select()
556 			mc->mc_skipped = 1;  in vdev_mirror_child_select()
557 			mc->mc_speculative = 1;  in vdev_mirror_child_select()
561 		if (mc->mc_vd->vdev_ops == &vdev_draid_spare_ops) {  in vdev_mirror_child_select()
567 		mc->mc_load = vdev_mirror_load(mm, mc->mc_vd, mc->mc_offset);  in vdev_mirror_child_select()
568 		if (mc->mc_load > lowest_load)  in vdev_mirror_child_select()
571 		if (mc->mc_load < lowest_load) {  in vdev_mirror_child_select()
572 			lowest_load = mc->mc_load;  in vdev_mirror_child_select()
608 	mirror_child_t *mc;  in vdev_mirror_io_start()  local
633 				mc = &mm->mm_child[c];  in vdev_mirror_io_start()
636 				if (!vdev_mirror_child_readable(mc)) {  in vdev_mirror_io_start()
637 					mc->mc_error = SET_ERROR(ENXIO);  in vdev_mirror_io_start()
638 					mc->mc_tried = 1;  in vdev_mirror_io_start()
639 					mc->mc_skipped = 1;  in vdev_mirror_io_start()
643 				mc->mc_abd = first ? zio->io_abd :  in vdev_mirror_io_start()
647 				    mc->mc_vd, mc->mc_offset, mc->mc_abd,  in vdev_mirror_io_start()
650 				    vdev_mirror_child_done, mc));  in vdev_mirror_io_start()
672 		mc = &mm->mm_child[c];  in vdev_mirror_io_start()
684 		    mm->mm_rebuilding && !mc->mc_rebuilding) {  in vdev_mirror_io_start()
689 		    mc->mc_vd, mc->mc_offset, zio->io_abd, zio->io_size,  in vdev_mirror_io_start()
691 		    vdev_mirror_child_done, mc));  in vdev_mirror_io_start()
703 		mirror_child_t *mc = &mm->mm_child[c];  in vdev_mirror_worst_error()  local
704 		int s = mc->mc_speculative;  in vdev_mirror_worst_error()
705 		error[s] = zio_worst_error(error[s], mc->mc_error);  in vdev_mirror_worst_error()
715 	mirror_child_t *mc;  in vdev_mirror_io_done()  local
725 		mc = &mm->mm_child[c];  in vdev_mirror_io_done()
727 		if (mc->mc_error) {  in vdev_mirror_io_done()
728 			if (!mc->mc_skipped)  in vdev_mirror_io_done()
730 		} else if (mc->mc_tried) {  in vdev_mirror_io_done()
794 		mc = &mm->mm_child[c];  in vdev_mirror_io_done()
797 		    mc->mc_vd, mc->mc_offset, zio->io_abd, zio->io_size,  in vdev_mirror_io_done()
799 		    vdev_mirror_child_done, mc));  in vdev_mirror_io_done()
822 				mc = &mm->mm_child[c];  in vdev_mirror_io_done()
823 				if (mc->mc_error || !mc->mc_tried)  in vdev_mirror_io_done()
826 				if (abd_cmp(mc->mc_abd, best_abd) != 0)  in vdev_mirror_io_done()
835 				    mc->mc_vd->vdev_ops ==  in vdev_mirror_io_done()
837 					pref_abd = mc->mc_abd;  in vdev_mirror_io_done()
843 				if (mc->mc_abd == zio->io_abd)  in vdev_mirror_io_done()
844 					best_abd = mc->mc_abd;  in vdev_mirror_io_done()
857 				mc = &mm->mm_child[c];  in vdev_mirror_io_done()
858 				if (mc->mc_error || !mc->mc_tried)  in vdev_mirror_io_done()
860 				if (mc->mc_abd == zio->io_abd) {  in vdev_mirror_io_done()
861 					best_abd = mc->mc_abd;  in vdev_mirror_io_done()
870 			mc = &mm->mm_child[c];  in vdev_mirror_io_done()
871 			if (mc->mc_abd != zio->io_abd)  in vdev_mirror_io_done()
872 				abd_free(mc->mc_abd);  in vdev_mirror_io_done()
873 			mc->mc_abd = NULL;  in vdev_mirror_io_done()
897 			mc = &mm->mm_child[c];  in vdev_mirror_io_done()
899 			if (mc->mc_error == 0) {  in vdev_mirror_io_done()
900 				vdev_ops_t *ops = mc->mc_vd->vdev_ops;  in vdev_mirror_io_done()
902 				if (mc->mc_tried)  in vdev_mirror_io_done()
920 				    !vdev_dtl_contains(mc->mc_vd, DTL_PARTIAL,  in vdev_mirror_io_done()
923 				mc->mc_error = SET_ERROR(ESTALE);  in vdev_mirror_io_done()
927 			    mc->mc_vd, mc->mc_offset,  in vdev_mirror_io_done()