linux-kernel - Re: [PATCH 18/19] z2ram: use separate gendisk for the different modes

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Message-ID: <c4d3abbf-ee71-d07b-58b2-72340a777b35@suse.de>
Date:   Fri, 4 Sep 2020 12:30:06 +0200
From:   Hannes Reinecke <hare@...e.de>
To:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Denis Efremov <efremov@...ux.com>,
        "David S. Miller" <davem@...emloft.net>,
        Song Liu <song@...nel.org>, Al Viro <viro@...iv.linux.org.uk>,
        Finn Thain <fthain@...egraphics.com.au>,
        Michael Schmitz <schmitzmic@...il.com>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-ide@...r.kernel.org, linux-raid@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-m68k@...ts.linux-m68k.org
Subject: Re: [PATCH 18/19] z2ram: use separate gendisk for the different modes

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@....de>
> ---
>   drivers/block/z2ram.c | 100 ++++++++++++++++++++++++------------------
>   1 file changed, 58 insertions(+), 42 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.de>

Cheers,

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