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Re: [libvirt] storage: inconsistent in 'format' scheme between document and implementation



On Thu, May 21, 2009 at 5:01 PM, Daniel Veillard <veillard redhat com> wrote:
> On Thu, May 21, 2009 at 03:57:28PM +0900, Ryota Ozaki wrote:
>> Hi,
>>
>> I've found a problem that a 'format' element in storage-{pool,vol} XML
>> doesn't behave as described in the document.
>>
>> The document says that a format of {pool,vol} is specified as the value of
>> a format element, like:
>>
>>       <target>
>>           <path>/var/lib/virt/images/sparse.img</path>
>>           <format>qcow2</format>
>>           <permissions>
>>
>> However, the implementation doesn't follow this:
>>
>>     if (options->formatFromString) {
>>         char *format = virXPathString(conn,
>> "string(/volume/target/format/@type)", ctxt);
> [...]
>> The implementation assumes that a format of {pool,vol} is specified as
>> the attribute of a format element, like:
>>
>>       <target>
>>           <path>/var/lib/virt/images/sparse.img</path>
>>           <format type='qcow2' />
>>           <permissions>
>>
>> Thus, we need to fix either the document or the implementation.
>> (I guess the implementation is correct, right?)
>>
>
>  Right, moreover the schemas docs/schemas/storagepool.rng makes it
>  clear too it's a type attribute:

Yes, I also checked that.

BTW, is the schema file used by libvirtd or drivers? This is just interest.

Thanks,
  ozaki-r

>
> ...
>  <define name='sourcefmtfs'>
>    <optional>
>      <element name='format'>
>        <attribute name='type'>
>          <choice>
>            <value>auto</value>
>            <value>ext2</value>
> ...
>
>  I have updated the doc to clear this,
>
>   thanks !
>
> Daniel
>
>
> --
> Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
> daniel veillard com  | Rpmfind RPM search engine http://rpmfind.net/
> http://veillard.com/ | virtualization library  http://libvirt.org/
>


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