Re: ide-cd bug (MODE_SENSE/CDROM_SEND_PACKET)

[Samuel Rydh <samuel@ibrium.se>]

On Tue, Mar 23, 2004 at 11:48:47AM +0100, Jens Axboe wrote:
> Could you check if this works for you?
> 
> ===== drivers/block/elevator.c 1.53 vs edited =====
> --- 1.53/drivers/block/elevator.c	Mon Jan 19 07:38:36 2004
> +++ edited/drivers/block/elevator.c	Tue Mar 23 11:47:53 2004
> @@ -210,10 +210,14 @@
>  			rq = NULL;
>  			break;
>  		} else if (ret == BLKPREP_KILL) {
> +			int nr_bytes = rq->hard_nr_sectors << 9;
> +
> +			if (!nr_bytes)
> +				nr_bytes = rq->data_len;
> +
>  			blkdev_dequeue_request(rq);
>  			rq->flags |= REQ_QUIET;
> -			while (end_that_request_first(rq, 0, rq->nr_sectors))
> -				;
> +			end_that_request_chunk(rq, 0, nr_bytes);
>  			end_that_request_last(rq);
>  		} else {
>  			printk("%s: bad return=%d\n", __FUNCTION__, ret);
> 

Yes, this fixes the problem.

/Samuel