linux-kernel - Re: [PATCH v12 08/13] dm-zoned: ensure only power of 2 zone sizes are allowed

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Message-ID: <YxFLWcY/xSqyqORO@redhat.com>
Date:   Thu, 1 Sep 2022 20:16:25 -0400
From:   Mike Snitzer <snitzer@...hat.com>
To:     Pankaj Raghav <p.raghav@...sung.com>
Cc:     agk@...hat.com, snitzer@...nel.org, axboe@...nel.dk,
        damien.lemoal@...nsource.wdc.com, hch@....de, bvanassche@....org,
        pankydev8@...il.com, Johannes.Thumshirn@....com,
        linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
        linux-block@...r.kernel.org, dm-devel@...hat.com,
        gost.dev@...sung.com, jaegeuk@...nel.org, matias.bjorling@....com,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: Re: [PATCH v12 08/13] dm-zoned: ensure only power of 2 zone sizes
 are allowed

On Tue, Aug 23 2022 at  8:18P -0400,
Pankaj Raghav <p.raghav@...sung.com> wrote:

> From: Luis Chamberlain <mcgrof@...nel.org>
> 
> dm-zoned relies on the assumption that the zone size is a
> power-of-2(po2) and the zone capacity is same as the zone size.
> 
> Ensure only po2 devices can be used as dm-zoned target until a native
> support for zoned devices with non-po2 zone size is added.
> 
> Reviewed-by: Hannes Reinecke <hare@...e.de>
> Reviewed-by: Damien Le Moal <damien.lemoal@...nsource.wdc.com>
> Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
> Signed-off-by: Pankaj Raghav <p.raghav@...sung.com>

Reviewed-by: Mike Snitzer <snitzer@...nel.org>