493 			bpobj_t *subbpo = kmem_alloc(sizeof (bpobj_t),  in bpobj_iterate_impl()  local
495 			err = bpobj_open(subbpo, bpo->bpo_os, subobj);  in bpobj_iterate_impl()
497 				kmem_free(subbpo, sizeof (bpobj_t));  in bpobj_iterate_impl()
501 			if (subbpo->bpo_havesubobj &&  in bpobj_iterate_impl()
502 			    subbpo->bpo_phys->bpo_subobjs != 0) {  in bpobj_iterate_impl()
503 				dmu_prefetch(subbpo->bpo_os,  in bpobj_iterate_impl()
504 				    subbpo->bpo_phys->bpo_subobjs, 0, 0, 0,  in bpobj_iterate_impl()
508 			list_insert_head(&stack, bpi_alloc(subbpo, bpi, i));  in bpobj_iterate_impl()
509 			mutex_enter(&subbpo->bpo_lock);  in bpobj_iterate_impl()
674 	bpobj_t subbpo;  in bpobj_enqueue_subobj()  local
690 	VERIFY3U(0, ==, bpobj_open(&subbpo, bpo->bpo_os, subobj));  in bpobj_enqueue_subobj()
691 	if (bpobj_is_empty(&subbpo)) {  in bpobj_enqueue_subobj()
693 		bpobj_close(&subbpo);  in bpobj_enqueue_subobj()
697 	VERIFY3U(0, ==, bpobj_space(&subbpo, &used, &comp, &uncomp));  in bpobj_enqueue_subobj()
715 	subsubobjs = subbpo.bpo_phys->bpo_subobjs;  in bpobj_enqueue_subobj()
736 		uint64_t numsubsub = subbpo.bpo_phys->bpo_num_subobjs;  in bpobj_enqueue_subobj()
758 		dmu_buf_will_dirty(subbpo.bpo_dbuf, tx);  in bpobj_enqueue_subobj()
759 		subbpo.bpo_phys->bpo_subobjs = 0;  in bpobj_enqueue_subobj()
765 		uint64_t numbps = subbpo.bpo_phys->bpo_num_blkptrs;  in bpobj_enqueue_subobj()
783 		bpobj_close(&subbpo);  in bpobj_enqueue_subobj()
786 		bpobj_close(&subbpo);  in bpobj_enqueue_subobj()
814 	bpobj_t subbpo;  in bpobj_prefetch_subobj()  local
825 	if (bpobj_open(&subbpo, bpo->bpo_os, subobj) != 0)  in bpobj_prefetch_subobj()
827 	if (bpobj_is_empty(&subbpo)) {  in bpobj_prefetch_subobj()
828 		bpobj_close(&subbpo);  in bpobj_prefetch_subobj()
831 	subsubobjs = subbpo.bpo_phys->bpo_subobjs;  in bpobj_prefetch_subobj()
832 	bpobj_close(&subbpo);  in bpobj_prefetch_subobj()