linux-kernel - Re: [PATCH v12 06/13] null_blk: allow zoned devices with non power-of-2 zone sizes

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Message-ID: <d4f7f08a-e55b-c1a3-52b3-210b9f5b0a43@acm.org>
Date:   Thu, 25 Aug 2022 14:49:43 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Pankaj Raghav <p.raghav@...sung.com>, agk@...hat.com,
        snitzer@...nel.org, axboe@...nel.dk,
        damien.lemoal@...nsource.wdc.com, hch@....de
Cc:     pankydev8@...il.com, Johannes.Thumshirn@....com,
        linux-block@...r.kernel.org, dm-devel@...hat.com, hare@...e.de,
        jaegeuk@...nel.org, linux-kernel@...r.kernel.org,
        matias.bjorling@....com, gost.dev@...sung.com,
        linux-nvme@...ts.infradead.org,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: Re: [PATCH v12 06/13] null_blk: allow zoned devices with non
 power-of-2 zone sizes

On 8/23/22 05:18, Pankaj Raghav wrote:
> Convert the power-of-2(po2) based calculation with zone size to be generic
> in null_zone_no with optimization for po2 zone sizes.
> 
> The nr_zones calculation in null_init_zoned_dev has been replaced with a
> division without special handling for po2 zone sizes as this function is
> called only during the initialization and will not be invoked in the hot
> path.

Reviewed-by: Bart Van Assche <bvanassche@....org>