Re: [Qemu-devel] [Qemu-block] [PATCH v5 0/4] virtio/block: handle zoned backing devices

[Stefan Hajnoczi]

On Fri, Aug 23, 2019 at 03:49:23PM -0400, Dmitry Fomichev wrote:
> Dmitry Fomichev (4):
>   block: Add zoned device model property
>   raw: Recognize zoned backing devices
>   block/ide/scsi: Set BLK_PERM_SUPPORT_ZONED
>   raw: Don't open ZBDs if backend can't handle them

The overall approach looks good.

I wonder if bdrv_get_zoned_info() is really needed since zone_model is
part of BlockLimits and is already fetched via bdrv_refresh_limits().
Was it introduced because the block limits haven't been or cannot be
fetched when zone_model is queried the first time?  It would be nice to
get rid of bdrv_get_zoned_info() if possible.

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