2847     void *cb_opaque;  member
2871     req->cb(req->cb_opaque, ret);  in scsi_block_sgio_complete()
2953     req->cb_opaque = opaque;  in scsi_block_do_sgio()
2968                                         BlockCompletionFunc *cb, void *cb_opaque,  in scsi_block_dma_readv()  argument
2973                               SG_DXFER_FROM_DEV, cb, cb_opaque);  in scsi_block_dma_readv()
2978                                          BlockCompletionFunc *cb, void *cb_opaque,  in scsi_block_dma_writev()  argument
2983                               SG_DXFER_TO_DEV, cb, cb_opaque);  in scsi_block_dma_writev()
3122                            BlockCompletionFunc *cb, void *cb_opaque,  in scsi_dma_readv()  argument
3127     return blk_aio_preadv(s->qdev.conf.blk, offset, iov, 0, cb, cb_opaque);  in scsi_dma_readv()
3132                             BlockCompletionFunc *cb, void *cb_opaque,  in scsi_dma_writev()  argument
3137     return blk_aio_pwritev(s->qdev.conf.blk, offset, iov, 0, cb, cb_opaque);  in scsi_dma_writev()