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block: refactor blkdev_report_zones() code

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In preparation for implementing cached report zone, split the main part
of the code of blkdev_report_zones() into the helper function
blkdev_do_report_zones(), with this new helper taking as argument a
struct blk_report_zones_args pointer instead of a report callback
function and its private argument.

No functional changes.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Damien Le Moal
2025-11-05 06:22:42 +09:00
committed by Jens Axboe
parent 0bf0e2e466
commit 1af3f4e0c4
1 changed files with 16 additions and 8 deletions
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24
block/blk-zoned.c
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@@ -205,6 +205,21 @@ struct blk_report_zones_args {
void *data;
};
static int blkdev_do_report_zones(struct block_device *bdev, sector_t sector,
unsigned int nr_zones,
struct blk_report_zones_args *args)
{
struct gendisk *disk = bdev->bd_disk;
if (!bdev_is_zoned(bdev) || WARN_ON_ONCE(!disk->fops->report_zones))
return -EOPNOTSUPP;
if (!nr_zones || sector >= get_capacity(disk))
return 0;
return disk->fops->report_zones(disk, sector, nr_zones, args);
}
/**
* blkdev_report_zones - Get zones information
* @bdev: Target block device
@@ -227,19 +242,12 @@ struct blk_report_zones_args {
int blkdev_report_zones(struct block_device *bdev, sector_t sector,
unsigned int nr_zones, report_zones_cb cb, void *data)
{
struct gendisk *disk = bdev->bd_disk;
struct blk_report_zones_args args = {
.cb = cb,
.data = data,
};
if (!bdev_is_zoned(bdev) || WARN_ON_ONCE(!disk->fops->report_zones))
return -EOPNOTSUPP;
if (!nr_zones || sector >= get_capacity(disk))
return 0;
return disk->fops->report_zones(disk, sector, nr_zones, &args);
return blkdev_do_report_zones(bdev, sector, nr_zones, &args);
}
EXPORT_SYMBOL_GPL(blkdev_report_zones);