linux-kernel - Re: [PATCH 02/16] block: add blk_queue_zone_aligned and bdev_zone

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Date:   Wed, 4 May 2022 09:55:12 -0700
From:   Hannes Reinecke <hare@...e.de>
To:     undisclosed-recipients:;
Subject: Re: [PATCH 02/16] block: add blk_queue_zone_aligned and
 bdev_zone_aligned helper

On 4/27/22 09:02, Pankaj Raghav wrote:
> Checking if a given sector is aligned to a zone is a very common
> operation that is performed for zoned devices. Add
> blk_queue_zone_aligned helper to check for this instead of opencoding it
> everywhere.
> 
> The helper is made to be generic so that it can also check for alignment
> for non non-power-of-2 zone size devices.
> 
> As the existing deployments of zoned devices had power-of-2
> assumption, power-of-2 optimized calculation is done for devices with
> power-of-2 zone size
> 
> Reviewed-by: Luis Chamberlain <mcgrof@...nel.org>
> Signed-off-by: Pankaj Raghav <p.raghav@...sung.com>
> ---
>   include/linux/blkdev.h | 31 +++++++++++++++++++++++++++++++
>   1 file changed, 31 insertions(+)
> 
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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