Re: [PATCH v2 06/28] block: Remember zone capacity when revalidating zones

Hannes Reinecke
2024-03-27T07:05:40Z

On 3/25/24 05:44, Damien Le Moal wrote:
> In preparation for adding zone write plugging, modify
> blk_revalidate_disk_zones() to get the capacity of zones of a zoned
> block device. This capacity value as a number of 512B sectors is stored
> in the gendisk zone_capacity field.
>
> Given that host-managed SMR disks (including zoned UFS drives) and all
> known NVMe ZNS devices have the same zone capacity for all zones
> blk_revalidate_disk_zones() returns an error if different capacities are
> detected for different zones.
>
> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
> ---
> block/blk-zoned.c | 15 +++++++++++++++
> include/linux/blkdev.h | 1 +
> 2 files changed, 16 insertions(+)
>
That again. We should never have allowed zones with different sizes.
Anyway.

Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
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