From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@osdl.org>
Subject: Re: 2.6.20-rc6: known unfixed regressions (v2) (part 2)
Date: Mon, 29 Jan 2007 19:08:47 -0800
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To: Mike Christie <michaelc@cs.wisc.edu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>, Mike Galbraith <efault@gmx.de>, Uwe Bugla <uwe.bugla@gmx.de>, Adrian Bunk <bunk@stusta.de>, gd@spherenet.de, alan@lxorguk.ukuu.org.uk, linux-ide@vger.kernel.org, B.Zolnierkiewicz@elka.pw.edu.pl, Jeff Garzik <jgarzik@pobox.com>, Jens Axboe <jens.axboe@oracle.com>, James Bottomley <James.Bottomley@SteelEye.com>, FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, Boaz Harrosh <bharrosh@panasas.com>

On Mon, 29 Jan 2007 20:50:58 -0600
Mike Christie <michaelc@cs.wisc.edu> wrote:

> With the attached patch, nero finds the cd drives and I can burn disks.
> There is no errors from the ide layer like before.
> 
> 
> [use-old-timeout-calc.patch  text/x-patch (399B)]
> diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
> index 2528a0c..aded9a0 100644
> --- a/block/scsi_ioctl.c
> +++ b/block/scsi_ioctl.c
> @@ -271,7 +271,7 @@ static int sg_io(struct file *file, requ
>  
>  	rq->cmd_type = REQ_TYPE_BLOCK_PC;
>  
> -	rq->timeout = jiffies_to_msecs(hdr->timeout);
> +	rq->timeout = (hdr->timeout * HZ) / 1000;

Yes, that was a buggy conversion - it should have been msecs_to_jiffies().