Re: [Qemu-devel] [PATCH 3/4] qcow2: Add overlap-check.template option

[Eric Blake <eblake@redhat.com>]

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On 08/20/2014 01:22 PM, Eric Blake wrote:
> On 08/20/2014 11:59 AM, Max Reitz wrote:
>> Being able to set the overlap-check option to a string and then refine
>> it via the overlap-check.* options is a nice idea for the command line
>> but does not work so well for non-flattened dicts. In that case, one can
>> only specify either but not both, so add a field to overlap-check.*
>> which does the same as directly specifying overlap-check but can be used
>> in conjunction with the other fields in non-flattened dicts.
>>
>> Signed-off-by: Max Reitz <mreitz@redhat.com>
>> ---
>>  block/qcow2.c | 24 ++++++++++++++++++++++--
>>  block/qcow2.h |  1 +
>>  2 files changed, 23 insertions(+), 2 deletions(-)

> 
> Okay, I see where this is headed.  The QMP will allow either
> 'overlap-check':'all' (resolve all defaults according to a template
> name), or 'overlap-check':{'template':'all','inactive-l1':'none'} (that
> is, a struct, where the struct also sets a default but also provides
> per-item overrides).  It took me a couple of reads of this in tandem
> with 4/4, but it looks correct.

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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