linux-kernel - Re: [PATCH v13 04/13] nvmet: Allow ZNS target to support non-power_of

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Message-ID: <435aa30a-9d1e-e8e6-6a14-6f5f612cf083@nvidia.com>
Date:   Wed, 14 Sep 2022 17:16:27 +0000
From:   Chaitanya Kulkarni <chaitanyak@...dia.com>
To:     Pankaj Raghav <p.raghav@...sung.com>, "hch@....de" <hch@....de>,
        "agk@...hat.com" <agk@...hat.com>,
        "damien.lemoal@...nsource.wdc.com" <damien.lemoal@...nsource.wdc.com>,
        "axboe@...nel.dk" <axboe@...nel.dk>,
        "snitzer@...nel.org" <snitzer@...nel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Johannes.Thumshirn@....com" <Johannes.Thumshirn@....com>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "pankydev8@...il.com" <pankydev8@...il.com>,
        "matias.bjorling@....com" <matias.bjorling@....com>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "bvanassche@....org" <bvanassche@....org>,
        "gost.dev@...sung.com" <gost.dev@...sung.com>,
        "dm-devel@...hat.com" <dm-devel@...hat.com>,
        "hare@...e.de" <hare@...e.de>,
        "jaegeuk@...nel.org" <jaegeuk@...nel.org>,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: Re: [PATCH v13 04/13] nvmet: Allow ZNS target to support
 non-power_of_2 zone sizes

On 9/12/2022 1:21 AM, Pankaj Raghav wrote:
> A generic bdev_zone_no() helper is added to calculate zone number for a
> given sector in a block device. This helper internally uses disk_zone_no()
> to find the zone number.
> 
> Use the helper bdev_zone_no() to calculate nr of zones. This let's us
> make modifications to the math if needed in one place and adds now
> support for zoned devices with non po2 zone size.
> 
> Reviewed by: Adam Manzanares <a.manzanares@...sung.com>
> Reviewed-by: Bart Van Assche <bvanassche@....org>
> Reviewed-by: Hannes Reinecke <hare@...e.de>
> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@....com>
> Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
> Signed-off-by: Pankaj Raghav <p.raghav@...sung.com>


Reviewed-by: Chaitanya Kulkarni <kch@...dia.com>

-ck