[PATCH V2 8/9] nvmet: add zns bdev config support

[Damien Le Moal]

On 2020/11/30 12:30, Chaitanya Kulkarni wrote:
> For zbd based bdev backend we need to override the ns->blksize_shift
> with the physical block size instead of using the logical block size
> so that SMR drives will not result in an error.
> 
> Update the nvmet_bdev_ns_enable() to reflect that.
> 
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at wdc.com>
> ---
>  drivers/nvme/target/io-cmd-bdev.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
> index 125dde3f410e..e1f6d59dd341 100644
> --- a/drivers/nvme/target/io-cmd-bdev.c
> +++ b/drivers/nvme/target/io-cmd-bdev.c
> @@ -86,6 +86,9 @@ int nvmet_bdev_ns_enable(struct nvmet_ns *ns)
>  	if (IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY_T10))
>  		nvmet_bdev_ns_enable_integrity(ns);
>  
> +	if (bdev_is_zoned(ns->bdev) && !nvmet_bdev_zns_enable(ns))
> +		return -EINVAL;
> +
>  	return 0;
>  }
>  
> 

I think this should be merged with patch 9. I do not see the point in having
this as a separate patch.

-- 
Damien Le Moal
Western Digital Research