Re: [BUG] Linux-2.6.31-rc1-git9 Cannot Recognize Empty DVD Media

[Jens Axboe <jens.axboe@oracle.com>]

On Thu, Jul 09 2009, FUJITA Tomonori wrote:
> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Subject: [PATCH] block: call blk_scsi_ioctl_init()
> 
> Currently, blk_scsi_ioctl_init() is not called so
> blk_default_cmd_filter isn't initalized. Some commands are not blocked
> wrongly.
> 
> This fixes a regression introduced:
> 
> commit 018e0446890661504783f92388ecce7138c1566d
> Author: Jens Axboe <jens.axboe@oracle.com>
> Date:   Fri Jun 26 16:27:10 2009 +0200
> 
>     block: get rid of queue-private command filter
> 
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> ---
>  block/scsi_ioctl.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
> index f0e0ce0..e5b1001 100644
> --- a/block/scsi_ioctl.c
> +++ b/block/scsi_ioctl.c
> @@ -680,3 +680,4 @@ int __init blk_scsi_ioctl_init(void)
>  	blk_set_cmd_filter_defaults(&blk_default_cmd_filter);
>  	return 0;
>  }
> +fs_initcall(blk_scsi_ioctl_init);
> -- 
> 1.6.0.6

You beat me to it, it was the missing call as I suspected. This
works, I verified it myself. Applied to for-linus, going upstream
soon.

-- 
Jens Axboe