Re: [PATCH 08/17] block: pass a gendisk to blk_queue_set_zoned

[Damien Le Moal <damien.lemoal@opensource.wdc.com>]

On 7/4/22 21:44, Christoph Hellwig wrote:
> Prepare for storing the zone related field in struct gendisk instead
> of struct request_queue.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

> ---
>  block/blk-settings.c           | 9 +++++----
>  block/partitions/core.c        | 2 +-
>  drivers/block/null_blk/zoned.c | 2 +-
>  drivers/nvme/host/zns.c        | 2 +-
>  drivers/scsi/sd.c              | 6 +++---
>  drivers/scsi/sd_zbc.c          | 2 +-
>  include/linux/blkdev.h         | 2 +-
>  7 files changed, 13 insertions(+), 12 deletions(-)
> 
> diff --git a/block/blk-settings.c b/block/blk-settings.c
> index 6ccceb421ed2f..35b7bba306a83 100644
> --- a/block/blk-settings.c
> +++ b/block/blk-settings.c
> @@ -893,18 +893,19 @@ static bool disk_has_partitions(struct gendisk *disk)
>  }
>  
>  /**
> - * blk_queue_set_zoned - configure a disk queue zoned model.
> + * disk_set_zoned - configure the zoned model for a disk
>   * @disk:	the gendisk of the queue to configure
>   * @model:	the zoned model to set
>   *
> - * Set the zoned model of the request queue of @disk according to @model.
> + * Set the zoned model of @disk to @model.
> + *
>   * When @model is BLK_ZONED_HM (host managed), this should be called only
>   * if zoned block device support is enabled (CONFIG_BLK_DEV_ZONED option).
>   * If @model specifies BLK_ZONED_HA (host aware), the effective model used
>   * depends on CONFIG_BLK_DEV_ZONED settings and on the existence of partitions
>   * on the disk.
>   */
> -void blk_queue_set_zoned(struct gendisk *disk, enum blk_zoned_model model)
> +void disk_set_zoned(struct gendisk *disk, enum blk_zoned_model model)
>  {
>  	struct request_queue *q = disk->queue;
>  
> @@ -948,7 +949,7 @@ void blk_queue_set_zoned(struct gendisk *disk, enum blk_zoned_model model)
>  		blk_queue_clear_zone_settings(q);
>  	}
>  }
> -EXPORT_SYMBOL_GPL(blk_queue_set_zoned);
> +EXPORT_SYMBOL_GPL(disk_set_zoned);
>  
>  int bdev_alignment_offset(struct block_device *bdev)
>  {
> diff --git a/block/partitions/core.c b/block/partitions/core.c
> index 7dc487f5b03cd..1a45b1dd64918 100644
> --- a/block/partitions/core.c
> +++ b/block/partitions/core.c
> @@ -330,7 +330,7 @@ static struct block_device *add_partition(struct gendisk *disk, int partno,
>  	case BLK_ZONED_HA:
>  		pr_info("%s: disabling host aware zoned block device support due to partitions\n",
>  			disk->disk_name);
> -		blk_queue_set_zoned(disk, BLK_ZONED_NONE);
> +		disk_set_zoned(disk, BLK_ZONED_NONE);
>  		break;
>  	case BLK_ZONED_NONE:
>  		break;
> diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c
> index 2fdd7b20c224e..b47bbd114058d 100644
> --- a/drivers/block/null_blk/zoned.c
> +++ b/drivers/block/null_blk/zoned.c
> @@ -159,7 +159,7 @@ int null_register_zoned_dev(struct nullb *nullb)
>  	struct nullb_device *dev = nullb->dev;
>  	struct request_queue *q = nullb->q;
>  
> -	blk_queue_set_zoned(nullb->disk, BLK_ZONED_HM);
> +	disk_set_zoned(nullb->disk, BLK_ZONED_HM);
>  	blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
>  	blk_queue_required_elevator_features(q, ELEVATOR_F_ZBD_SEQ_WRITE);
>  
> diff --git a/drivers/nvme/host/zns.c b/drivers/nvme/host/zns.c
> index 9f81beb4df4ef..0ed15c2fd56de 100644
> --- a/drivers/nvme/host/zns.c
> +++ b/drivers/nvme/host/zns.c
> @@ -109,7 +109,7 @@ int nvme_update_zone_info(struct nvme_ns *ns, unsigned lbaf)
>  		goto free_data;
>  	}
>  
> -	blk_queue_set_zoned(ns->disk, BLK_ZONED_HM);
> +	disk_set_zoned(ns->disk, BLK_ZONED_HM);
>  	blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
>  	blk_queue_max_open_zones(q, le32_to_cpu(id->mor) + 1);
>  	blk_queue_max_active_zones(q, le32_to_cpu(id->mar) + 1);
> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
> index cb587e488601c..eb02d939dd448 100644
> --- a/drivers/scsi/sd.c
> +++ b/drivers/scsi/sd.c
> @@ -2934,15 +2934,15 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
>  
>  	if (sdkp->device->type == TYPE_ZBC) {
>  		/* Host-managed */
> -		blk_queue_set_zoned(sdkp->disk, BLK_ZONED_HM);
> +		disk_set_zoned(sdkp->disk, BLK_ZONED_HM);
>  	} else {
>  		sdkp->zoned = zoned;
>  		if (sdkp->zoned == 1) {
>  			/* Host-aware */
> -			blk_queue_set_zoned(sdkp->disk, BLK_ZONED_HA);
> +			disk_set_zoned(sdkp->disk, BLK_ZONED_HA);
>  		} else {
>  			/* Regular disk or drive managed disk */
> -			blk_queue_set_zoned(sdkp->disk, BLK_ZONED_NONE);
> +			disk_set_zoned(sdkp->disk, BLK_ZONED_NONE);
>  		}
>  	}
>  
> diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
> index 6acc4f406eb8c..0f5823b674685 100644
> --- a/drivers/scsi/sd_zbc.c
> +++ b/drivers/scsi/sd_zbc.c
> @@ -929,7 +929,7 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, u8 buf[SD_BUF_SIZE])
>  		/*
>  		 * This can happen for a host aware disk with partitions.
>  		 * The block device zone model was already cleared by
> -		 * blk_queue_set_zoned(). Only free the scsi disk zone
> +		 * disk_set_zoned(). Only free the scsi disk zone
>  		 * information and exit early.
>  		 */
>  		sd_zbc_free_zone_info(sdkp);
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index b9baee910b825..ddf8353488fc8 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -291,7 +291,7 @@ struct queue_limits {
>  typedef int (*report_zones_cb)(struct blk_zone *zone, unsigned int idx,
>  			       void *data);
>  
> -void blk_queue_set_zoned(struct gendisk *disk, enum blk_zoned_model model);
> +void disk_set_zoned(struct gendisk *disk, enum blk_zoned_model model);
>  
>  #ifdef CONFIG_BLK_DEV_ZONED
>  


-- 
Damien Le Moal
Western Digital Research