Re: [PATCH 05/17] block: export blkdev_zone_mgmt_all

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On 7/4/22 21:44, Christoph Hellwig wrote:
> Export blkdev_zone_mgmt_all so that the nvme target can use it instead
> of duplicating the functionality.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>

> ---
>  block/blk-zoned.c      | 10 +++++-----
>  include/linux/blkdev.h |  2 ++
>  2 files changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/block/blk-zoned.c b/block/blk-zoned.c
> index 90a5c9cc80ab3..7fbe395fa51fc 100644
> --- a/block/blk-zoned.c
> +++ b/block/blk-zoned.c
> @@ -185,8 +185,8 @@ static int blk_zone_need_reset_cb(struct blk_zone *zone, unsigned int idx,
>  	}
>  }
>  
> -static int blkdev_zone_reset_all_emulated(struct block_device *bdev,
> -					  gfp_t gfp_mask)
> +int blkdev_zone_mgmt_all(struct block_device *bdev, unsigned int op,
> +			 gfp_t gfp_mask)
>  {
>  	struct request_queue *q = bdev_get_queue(bdev);
>  	sector_t capacity = get_capacity(bdev->bd_disk);
> @@ -213,8 +213,7 @@ static int blkdev_zone_reset_all_emulated(struct block_device *bdev,
>  			continue;
>  		}
>  
> -		bio = blk_next_bio(bio, bdev, 0, REQ_OP_ZONE_RESET | REQ_SYNC,
> -				   gfp_mask);
> +		bio = blk_next_bio(bio, bdev, 0, op | REQ_SYNC, gfp_mask);
>  		bio->bi_iter.bi_sector = sector;
>  		sector += zone_sectors;
>  
> @@ -231,6 +230,7 @@ static int blkdev_zone_reset_all_emulated(struct block_device *bdev,
>  	kfree(need_reset);
>  	return ret;
>  }
> +EXPORT_SYMBOL_GPL(blkdev_zone_mgmt_all);
>  
>  static int blkdev_zone_reset_all(struct block_device *bdev, gfp_t gfp_mask)
>  {
> @@ -295,7 +295,7 @@ int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op,
>  	 */
>  	if (op == REQ_OP_ZONE_RESET && sector == 0 && nr_sectors == capacity) {
>  		if (!blk_queue_zone_resetall(q))
> -			return blkdev_zone_reset_all_emulated(bdev, gfp_mask);
> +			return blkdev_zone_mgmt_all(bdev, op, gfp_mask);
>  		return blkdev_zone_reset_all(bdev, gfp_mask);
>  	}
>  
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 270cd0c552924..b9baee910b825 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -302,6 +302,8 @@ unsigned int blkdev_nr_zones(struct gendisk *disk);
>  extern int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op,
>  			    sector_t sectors, sector_t nr_sectors,
>  			    gfp_t gfp_mask);
> +int blkdev_zone_mgmt_all(struct block_device *bdev, unsigned int op,
> +			 gfp_t gfp_mask);
>  int blk_revalidate_disk_zones(struct gendisk *disk,
>  			      void (*update_driver_data)(struct gendisk *disk));
>  


-- 
Damien Le Moal
Western Digital Research

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