Re: [Qemu-devel] [PATCH v3 02/38] blockdev: Allow creation of BDS trees without BB

[Eric Blake <eblake@redhat.com>]

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On 06/03/2015 01:43 PM, Max Reitz wrote:
> If the "id" field is missing from the options given to blockdev-add,
> just omit the BlockBackend and create the BlockDriverState tree alone.
> 
> However, if "id" is missing, "node-name" must be specified; otherwise,
> the BDS tree would no longer be accessible.
> 
> Many BDS options which are not parsed by bdrv_open() (like caching)
> cannot be specified for these BB-less BDS trees yet. A future patch will
> remove this limitation.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  blockdev.c                 | 44 +++++++++++++++++++++++++++++++-------------
>  qapi/block-core.json       | 13 +++++++++----
>  tests/qemu-iotests/087     |  2 +-
>  tests/qemu-iotests/087.out |  4 ++--
>  4 files changed, 43 insertions(+), 20 deletions(-)
> 

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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