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
227 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,  in blk_fill_sghdr_rq()  argument
242 		rq->timeout = q->sg_timeout;  in blk_fill_sghdr_rq()
286 static int sg_io(struct request_queue *q, struct gendisk *bd_disk,  in sg_io()  argument
300 	if (hdr->dxfer_len > (queue_max_hw_sectors(q) << 9))  in sg_io()
318 	rq = blk_get_request(q, writing ? WRITE : READ, GFP_KERNEL);  in sg_io()
330 	if (blk_fill_sghdr_rq(q, rq, hdr, mode))  in sg_io()
347 		ret = blk_rq_map_user_iov(q, rq, NULL, &i, GFP_KERNEL);  in sg_io()
350 		ret = blk_rq_map_user(q, rq, NULL, hdr->dxferp, hdr->dxfer_len,  in sg_io()
368 	blk_execute_rq(q, bd_disk, rq, at_head);  in sg_io()
416 int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,  in sg_scsi_ioctl()  argument
441 		buffer = kzalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN);  in sg_scsi_ioctl()
447 	rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_WAIT);  in sg_scsi_ioctl()
498 	if (bytes && blk_rq_map_kern(q, rq, buffer, bytes, __GFP_WAIT)) {  in sg_scsi_ioctl()
507 	blk_execute_rq(q, disk, rq, 0);  in sg_scsi_ioctl()
533 static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk,  in __blk_send_generic()  argument
539 	rq = blk_get_request(q, WRITE, __GFP_WAIT);  in __blk_send_generic()
547 	err = blk_execute_rq(q, bd_disk, rq, 0);  in __blk_send_generic()
553 static inline int blk_send_start_stop(struct request_queue *q,  in blk_send_start_stop()  argument
556 	return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data);  in blk_send_start_stop()
559 int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mode,  in scsi_cmd_ioctl()  argument
564 	if (!q)  in scsi_cmd_ioctl()
575 			err = scsi_get_idlun(q, arg);  in scsi_cmd_ioctl()
578 			err = scsi_get_bus(q, arg);  in scsi_cmd_ioctl()
581 			err = sg_set_timeout(q, arg);  in scsi_cmd_ioctl()
584 			err = sg_get_timeout(q);  in scsi_cmd_ioctl()
587 			err = sg_get_reserved_size(q, arg);  in scsi_cmd_ioctl()
590 			err = sg_set_reserved_size(q, arg);  in scsi_cmd_ioctl()
593 			err = sg_emulated_host(q, arg);  in scsi_cmd_ioctl()
601 			err = sg_io(q, bd_disk, &hdr, mode);  in scsi_cmd_ioctl()
649 			err = sg_io(q, bd_disk, &hdr, mode);  in scsi_cmd_ioctl()
673 			err = sg_scsi_ioctl(q, bd_disk, mode, arg);  in scsi_cmd_ioctl()
676 			err = blk_send_start_stop(q, bd_disk, 0x03);  in scsi_cmd_ioctl()
679 			err = blk_send_start_stop(q, bd_disk, 0x02);  in scsi_cmd_ioctl()