linux-kernel - Re: [PATCH 04/24] compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES

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Date:   Thu, 12 Dec 2019 01:20:28 +0000
From:   Damien Le Moal <Damien.LeMoal@....com>
To:     Arnd Bergmann <arnd@...db.de>, Jens Axboe <axboe@...nel.dk>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Hannes Reinecke <hare@...e.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "y2038@...ts.linaro.org" <y2038@...ts.linaro.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Christoph Hellwig <hch@....de>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>
Subject: Re: [PATCH 04/24] compat_ioctl: block: handle
 BLKGETZONESZ/BLKGETNRZONES

On 2019/12/12 5:44, Arnd Bergmann wrote:
> These were added to blkdev_ioctl() in v4.20 but not blkdev_compat_ioctl,
> so add them now.
> 
> Cc: <stable@...r.kernel.org> # v4.20+
> Fixes: 72cd87576d1d ("block: Introduce BLKGETZONESZ ioctl")
> Fixes: 65e4e3eee83d ("block: Introduce BLKGETNRZONES ioctl")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  block/compat_ioctl.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
> index 830f91e05fe3..f5c1140b8624 100644
> --- a/block/compat_ioctl.c
> +++ b/block/compat_ioctl.c
> @@ -356,6 +356,8 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
>  	case BLKRRPART:
>  	case BLKREPORTZONE:
>  	case BLKRESETZONE:
> +	case BLKGETZONESZ:
> +	case BLKGETNRZONES:
>  		return blkdev_ioctl(bdev, mode, cmd,
>  				(unsigned long)compat_ptr(arg));
>  	case BLKBSZSET_32:
> 

Reviewed-by: Damien Le Moal <damien.lemoal@....com>

-- 
Damien Le Moal
Western Digital Research