60 static int scsi_get_idlun(struct request_queue *q, int __user *p)  in scsi_get_idlun()  argument
65 static int scsi_get_bus(struct request_queue *q, int __user *p)  in scsi_get_bus()  argument
70 static int sg_get_timeout(struct request_queue *q)  in sg_get_timeout()  argument
72 	return jiffies_to_clock_t(q->sg_timeout);  in sg_get_timeout()
75 static int sg_set_timeout(struct request_queue *q, int __user *p)  in sg_set_timeout()  argument
80 		q->sg_timeout = clock_t_to_jiffies(timeout);  in sg_set_timeout()
85 static int max_sectors_bytes(struct request_queue *q)  in max_sectors_bytes()  argument
87 	unsigned int max_sectors = queue_max_sectors(q);  in max_sectors_bytes()
94 static int sg_get_reserved_size(struct request_queue *q, int __user *p)  in sg_get_reserved_size()  argument
96 	int val = min_t(int, q->sg_reserved_size, max_sectors_bytes(q));  in sg_get_reserved_size()
101 static int sg_set_reserved_size(struct request_queue *q, int __user *p)  in sg_set_reserved_size()  argument
111 	q->sg_reserved_size = min(size, max_sectors_bytes(q));  in sg_set_reserved_size()
119 static int sg_emulated_host(struct request_queue *q, int __user *p)  in sg_emulated_host()  argument
230 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,  in blk_fill_sghdr_rq()  argument
245 		rq->timeout = q->sg_timeout;  in blk_fill_sghdr_rq()
289 static int sg_io(struct request_queue *q, struct gendisk *bd_disk,  in sg_io()  argument
303 	if (hdr->dxfer_len > (queue_max_hw_sectors(q) << 9))  in sg_io()
321 	rq = blk_get_request(q, writing ? WRITE : READ, GFP_KERNEL);  in sg_io()
332 	ret = blk_fill_sghdr_rq(q, rq, hdr, mode);  in sg_io()
350 		ret = blk_rq_map_user_iov(q, rq, NULL, &i, GFP_KERNEL);  in sg_io()
353 		ret = blk_rq_map_user(q, rq, NULL, hdr->dxferp, hdr->dxfer_len,  in sg_io()
371 	blk_execute_rq(q, bd_disk, rq, at_head);  in sg_io()
419 int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,  in sg_scsi_ioctl()  argument
444 		buffer = kzalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN);  in sg_scsi_ioctl()
450 	rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_RECLAIM);  in sg_scsi_ioctl()
501 	if (bytes && blk_rq_map_kern(q, rq, buffer, bytes, __GFP_RECLAIM)) {  in sg_scsi_ioctl()
510 	blk_execute_rq(q, disk, rq, 0);  in sg_scsi_ioctl()
536 static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk,  in __blk_send_generic()  argument
542 	rq = blk_get_request(q, WRITE, __GFP_RECLAIM);  in __blk_send_generic()
550 	err = blk_execute_rq(q, bd_disk, rq, 0);  in __blk_send_generic()
556 static inline int blk_send_start_stop(struct request_queue *q,  in blk_send_start_stop()  argument
559 	return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data);  in blk_send_start_stop()
562 int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mode,  in scsi_cmd_ioctl()  argument
567 	if (!q)  in scsi_cmd_ioctl()
578 			err = scsi_get_idlun(q, arg);  in scsi_cmd_ioctl()
581 			err = scsi_get_bus(q, arg);  in scsi_cmd_ioctl()
584 			err = sg_set_timeout(q, arg);  in scsi_cmd_ioctl()
587 			err = sg_get_timeout(q);  in scsi_cmd_ioctl()
590 			err = sg_get_reserved_size(q, arg);  in scsi_cmd_ioctl()
593 			err = sg_set_reserved_size(q, arg);  in scsi_cmd_ioctl()
596 			err = sg_emulated_host(q, arg);  in scsi_cmd_ioctl()
604 			err = sg_io(q, bd_disk, &hdr, mode);  in scsi_cmd_ioctl()
652 			err = sg_io(q, bd_disk, &hdr, mode);  in scsi_cmd_ioctl()
676 			err = sg_scsi_ioctl(q, bd_disk, mode, arg);  in scsi_cmd_ioctl()
679 			err = blk_send_start_stop(q, bd_disk, 0x03);  in scsi_cmd_ioctl()
682 			err = blk_send_start_stop(q, bd_disk, 0x02);  in scsi_cmd_ioctl()