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Subject: Re: [PATCH 18/19] z2ram: use separate gendisk for the different modes
To:     Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Denis Efremov <efremov@linux.com>,
        "David S. Miller" <davem@davemloft.net>,
        Song Liu <song@kernel.org>, Al Viro <viro@zeniv.linux.org.uk>,
        Finn Thain <fthain@telegraphics.com.au>,
        Michael Schmitz <schmitzmic@gmail.com>,
        linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-ide@vger.kernel.org, linux-raid@vger.kernel.org,
        linux-scsi@vger.kernel.org, linux-m68k@lists.linux-m68k.org
References: <20200903080119.441674-1-hch@lst.de>
 <20200903080119.441674-19-hch@lst.de>
From:   Hannes Reinecke <hare@suse.de>
Message-ID: <c4d3abbf-ee71-d07b-58b2-72340a777b35@suse.de>
Date:   Fri, 4 Sep 2020 12:30:06 +0200
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On 9/3/20 10:01 AM, Christoph Hellwig wrote:
> Use separate gendisks (which share a tag_set) for the different operating
> modes instead of redirecting the gendisk lookup using a probe callback.
> This avoids potential problems with aliased block_device instances and
> will eventually allow for removing the blk_register_region framework.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   drivers/block/z2ram.c | 100 ++++++++++++++++++++++++------------------
>   1 file changed, 58 insertions(+), 42 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
hare@suse.de                              +49 911 74053 688
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