linux-kernel - Re: 2.6.19-rc1 regression: unable to read dvd's

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Message-Id: <1160664290.6207.2.camel@Homer.simpson.net>
Date:	Thu, 12 Oct 2006 14:44:50 +0000
From:	Mike Galbraith <efault@....de>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Alex Romosan <romosan@...orax.lbl.gov>,
	linux-kernel@...r.kernel.org, olaf@...fle.de
Subject: Re: 2.6.19-rc1 regression: unable to read dvd's

On Thu, 2006-10-12 at 14:21 +0200, Jens Axboe wrote:

> Mike/Alex/Olaf, can you give this a spin? Totally untested here, but I
> think it should fix it.

Yup, all better here.  Thanks.

	-Mike

> diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
> index 69bbb62..e7513e5 100644
> --- a/drivers/ide/ide-cd.c
> +++ b/drivers/ide/ide-cd.c
> @@ -597,7 +597,7 @@ static void cdrom_prepare_request(ide_dr
>  	struct cdrom_info *cd = drive->driver_data;
>  
>  	ide_init_drive_cmd(rq);
> -	rq->cmd_type = REQ_TYPE_BLOCK_PC;
> +	rq->cmd_type = REQ_TYPE_ATA_PC;
>  	rq->rq_disk = cd->disk;
>  }
>  
> @@ -2023,7 +2023,8 @@ ide_do_rw_cdrom (ide_drive_t *drive, str
>  		}
>  		info->last_block = block;
>  		return action;
> -	} else if (rq->cmd_type == REQ_TYPE_SENSE) {
> +	} else if (rq->cmd_type == REQ_TYPE_SENSE ||
> +		   rq->cmd_type == REQ_TYPE_ATA_PC) {
>  		return cdrom_do_packet_command(drive);
>  	} else if (blk_pc_request(rq)) {
>  		return cdrom_do_block_pc(drive, rq);
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 26f7856..d370d2c 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -157,6 +157,7 @@ enum rq_cmd_type_bits {
>  	REQ_TYPE_ATA_CMD,
>  	REQ_TYPE_ATA_TASK,
>  	REQ_TYPE_ATA_TASKFILE,
> +	REQ_TYPE_ATA_PC,
>  };
>  
>  /*
> 

-
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