Re: [PATCH v11 3/3] ublk: enable zoned storage support

[Ming Lei]

On Fri, Aug 4, 2023 at 8:34 PM Andreas Hindborg (Samsung)
<nmi@xxxxxxxxxxxx> wrote:
>
> From: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>
>
> Add zoned storage support to ublk: report_zones and operations:
>  - REQ_OP_ZONE_OPEN
>  - REQ_OP_ZONE_CLOSE
>  - REQ_OP_ZONE_FINISH
>  - REQ_OP_ZONE_RESET
>  - REQ_OP_ZONE_APPEND
>
> The zone append feature uses the `addr` field of `struct ublksrv_io_cmd` to
> communicate ALBA back to the kernel. Therefore ublk must be used with the
> user copy feature (UBLK_F_USER_COPY) for zoned storage support to be
> available. Without this feature, ublk will not allow zoned storage support.
>
> Signed-off-by: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>

Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx>
Tested-by: Ming Lei <ming.lei@xxxxxxxxxx>

Thanks,