Re: [Qemu-devel] [PATCH v3 18/38] block: Fail requests to empty BlockBackend

[Eric Blake]

On 06/03/2015 01:43 PM, Max Reitz wrote:
> If there is no BlockDriverState in a BlockBackend or if the tray of the
> guest device is open, fail all requests (where that is possible) with
> -ENOMEDIUM.
> 
> The reason the status of the guest device is taken into account is
> because once the guest device's tray is opened, any request on the same
> BlockBackend as the guest uses should fail. If the BDS tree is supposed
> to be usable even after ejecting it from the guest, a different
> BlockBackend must be used.
> 
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  block/block-backend.c | 55 
> ++++++++++++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 54 insertions(+), 1 deletion(-)
> 

Reviewed-by: Eric Blake <address@hidden>

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

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