220 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,  in blk_fill_sghdr_rq()  argument
223 	struct scsi_request *req = scsi_req(rq);  in blk_fill_sghdr_rq()
235 	rq->timeout = msecs_to_jiffies(hdr->timeout);  in blk_fill_sghdr_rq()
236 	if (!rq->timeout)  in blk_fill_sghdr_rq()
237 		rq->timeout = q->sg_timeout;  in blk_fill_sghdr_rq()
238 	if (!rq->timeout)  in blk_fill_sghdr_rq()
239 		rq->timeout = BLK_DEFAULT_SG_TIMEOUT;  in blk_fill_sghdr_rq()
240 	if (rq->timeout < BLK_MIN_SG_TIMEOUT)  in blk_fill_sghdr_rq()
241 		rq->timeout = BLK_MIN_SG_TIMEOUT;  in blk_fill_sghdr_rq()
246 static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr,  in blk_complete_sghdr_rq()  argument
249 	struct scsi_request *req = scsi_req(rq);  in blk_complete_sghdr_rq()
289 	struct request *rq;  in sg_io()  local
314 	rq = blk_get_request(q, writing ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0);  in sg_io()
315 	if (IS_ERR(rq))  in sg_io()
316 		return PTR_ERR(rq);  in sg_io()
317 	req = scsi_req(rq);  in sg_io()
325 	ret = blk_fill_sghdr_rq(q, rq, hdr, mode);  in sg_io()
334 		ret = import_iovec(rq_data_dir(rq), hdr->dxferp,  in sg_io()
342 		ret = blk_rq_map_user_iov(q, rq, NULL, &i, GFP_KERNEL);  in sg_io()
345 		ret = blk_rq_map_user(q, rq, NULL, hdr->dxferp, hdr->dxfer_len,  in sg_io()
351 	bio = rq->bio;  in sg_io()
360 	blk_execute_rq(q, bd_disk, rq, at_head);  in sg_io()
364 	ret = blk_complete_sghdr_rq(rq, hdr, bio);  in sg_io()
369 	blk_put_request(rq);  in sg_io()
411 	struct request *rq;  in sg_scsi_ioctl()  local
440 	rq = blk_get_request(q, in_len ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0);  in sg_scsi_ioctl()
441 	if (IS_ERR(rq)) {  in sg_scsi_ioctl()
442 		err = PTR_ERR(rq);  in sg_scsi_ioctl()
445 	req = scsi_req(rq);  in sg_scsi_ioctl()
470 		rq->timeout = FORMAT_UNIT_TIMEOUT;  in sg_scsi_ioctl()
474 		rq->timeout = START_STOP_TIMEOUT;  in sg_scsi_ioctl()
477 		rq->timeout = MOVE_MEDIUM_TIMEOUT;  in sg_scsi_ioctl()
480 		rq->timeout = READ_ELEMENT_STATUS_TIMEOUT;  in sg_scsi_ioctl()
483 		rq->timeout = READ_DEFECT_DATA_TIMEOUT;  in sg_scsi_ioctl()
487 		rq->timeout = BLK_DEFAULT_SG_TIMEOUT;  in sg_scsi_ioctl()
491 	if (bytes && blk_rq_map_kern(q, rq, buffer, bytes, GFP_NOIO)) {  in sg_scsi_ioctl()
496 	blk_execute_rq(q, disk, rq, 0);  in sg_scsi_ioctl()
512 	blk_put_request(rq);  in sg_scsi_ioctl()
525 	struct request *rq;  in __blk_send_generic()  local
528 	rq = blk_get_request(q, REQ_OP_SCSI_OUT, 0);  in __blk_send_generic()
529 	if (IS_ERR(rq))  in __blk_send_generic()
530 		return PTR_ERR(rq);  in __blk_send_generic()
531 	rq->timeout = BLK_DEFAULT_SG_TIMEOUT;  in __blk_send_generic()
532 	scsi_req(rq)->cmd[0] = cmd;  in __blk_send_generic()
533 	scsi_req(rq)->cmd[4] = data;  in __blk_send_generic()
534 	scsi_req(rq)->cmd_len = 6;  in __blk_send_generic()
535 	blk_execute_rq(q, bd_disk, rq, 0);  in __blk_send_generic()
536 	err = scsi_req(rq)->result ? -EIO : 0;  in __blk_send_generic()
537 	blk_put_request(rq);  in __blk_send_generic()