Il 17/02/2013 07:37, Asias He ha scritto: >> > static int __virtblk_add_req(struct virtqueue *vq, >> > - struct virtblk_req *vbr) >> > + struct virtblk_req *vbr, >> > + struct scatterlist *data_sg, >> > + unsigned data_nents) >> > { >> > struct scatterlist sg; >> > enum dma_data_direction dir; >> > int ret; >> > >> > + int type = vbr->out_hdr.type & ~VIRTIO_BLK_T_OUT; >> > unsigned int nents = 2; >> > unsigned int nsg = 2; >> > >> > - if (vbr->nents) { >> > + if (type == VIRTIO_BLK_T_SCSI_CMD) { >> > + BUG_ON(use_bio); > Do we really need the BUG_ON? Even if with use_bio=1, > VIRTIO_BLK_T_SCSI_CMD cmd can be fired. See this: I stand corrected... will send the patch with this removed. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html