[dm-devel] [PATCH v3 04/11] block: Introduce blkdev_nr_zones() helper

[Hannes Reinecke]

On 10/12/18 4:30 AM, Damien Le Moal wrote:
> Introduce the blkdev_nr_zones() helper function to get the total
> number of zones of a zoned block device. This number is always 0 for a
> regular block device (q->limits.zoned == BLK_ZONED_NONE case).
> 
> Replace hard-coded number of zones calculation in dmz_get_zoned_device()
> with a call to this helper.
> 
> Signed-off-by: Damien Le Moal <damien.lemoal at wdc.com>
> Reviewed-by: Christoph Hellwig <hch at lst.de>
> ---
>   block/blk-zoned.c            | 27 +++++++++++++++++++++++++++
>   drivers/md/dm-zoned-target.c |  3 +--
>   include/linux/blkdev.h       |  5 +++++
>   3 files changed, 33 insertions(+), 2 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.com>

Cheers,

Hannes
-- 
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