609 	struct scsi_data_buffer *sdb;  in scsi_mq_free_sgtables()  local
611 	if (cmd->sdb.table.nents)  in scsi_mq_free_sgtables()
612 		sg_free_table_chained(&cmd->sdb.table, true);  in scsi_mq_free_sgtables()
614 		sdb = cmd->request->next_rq->special;  in scsi_mq_free_sgtables()
615 		if (sdb)  in scsi_mq_free_sgtables()
616 			sg_free_table_chained(&sdb->table, true);  in scsi_mq_free_sgtables()
647 	if (cmd->sdb.table.nents)  in scsi_release_buffers()
648 		sg_free_table_chained(&cmd->sdb.table, false);  in scsi_release_buffers()
650 	memset(&cmd->sdb, 0, sizeof(cmd->sdb));  in scsi_release_buffers()
1115 static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb)  in scsi_init_sgtable()  argument
1122 	if (unlikely(sg_alloc_table_chained(&sdb->table,  in scsi_init_sgtable()
1123 			blk_rq_nr_phys_segments(req), sdb->table.sgl)))  in scsi_init_sgtable()
1130 	count = blk_rq_map_sg(req->q, req, sdb->table.sgl);  in scsi_init_sgtable()
1131 	BUG_ON(count > sdb->table.nents);  in scsi_init_sgtable()
1132 	sdb->table.nents = count;  in scsi_init_sgtable()
1133 	sdb->length = blk_rq_payload_bytes(req);  in scsi_init_sgtable()
1158 	error = scsi_init_sgtable(rq, &cmd->sdb);  in scsi_init_io()
1324 		memset(&cmd->sdb, 0, sizeof(cmd->sdb));  in scsi_setup_scsi_cmnd()
2020 	cmd->sdb.table.sgl = sg;  in scsi_mq_prep_fn()