linux-kernel - Re: [dm-devel] [PATCH v7 01/13] block: make blkdev_nr_zones and blk_queue_zone

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Date:   Wed, 15 Jun 2022 13:18:31 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Pankaj Raghav <p.raghav@...sung.com>, hch@....de,
        snitzer@...hat.com, damien.lemoal@...nsource.wdc.com,
        axboe@...nel.dk
Cc:     pankydev8@...il.com, gost.dev@...sung.com,
        jiangbo.365@...edance.com, linux-nvme@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        dm-devel@...hat.com, jonathan.derrick@...ux.dev,
        Johannes.Thumshirn@....com, dsterba@...e.com, jaegeuk@...nel.org,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: Re: [dm-devel] [PATCH v7 01/13] block: make blkdev_nr_zones and
 blk_queue_zone_no generic for npo2 zsze

On 6/15/22 03:19, Pankaj Raghav wrote:
> Adapt blkdev_nr_zones and blk_queue_zone_no function so that it can
> also work for non-power-of-2 zone sizes.
> 
> As the existing deployments of zoned devices had power-of-2
> assumption, power-of-2 optimized calculation is kept for those devices.
> 
> There are no direct hot paths modified and the changes just
> introduce one new branch per call.
Reviewed-by: Bart Van Assche <bvanassche@....org>