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Re: [libvirt] [PATCH v2 6/8] blockcopy: add a way to parse disk source

On 08/26/2014 09:41 AM, Peter Krempa wrote:
> On 08/26/14 13:21, Eric Blake wrote:
>> The new blockcopy API wants to reuse only a subset of the disk
>> hotplug parser - namely, we only care about the embedded
>> virStorageSourcePtr inside a <disk> XML.  Strange as it may
>> seem, it was easier to just parse an entire disk definition,
>> then throw away everything but the embedded source, than it
>> was to disentangle the source parsing code from the rest of
>> the overall disk parsing function.  All that I needed was a
>> couple of tweaks and a new internal flag that determines
>> whether the normally-mandatory target element can be
>> gracefully skipped.
>> While adding the new flag, I noticed we had a verify() that
>> was incomplete after several recent internal flag additions;
>> move that up higher in the code to make it harder to forget
>> to modify on the next flag addition.

"While adding" should have been my clue...

>> +        & DUMPXML_FLAGS) == 0);
>> +
> Again, code tweaks and unrelated fixes ...

to split the cleanup.

> I'd really prefer the unrelated tweaks posted separately.

You're absolutely right about splitting it.

> Again, what you have works so ACK to this patch even if you decide
> against splitting it up.

I'll push the cleanups now, but save the meat for v3 (I'm rebasing the
series on top of my change to support type='block' in the older API).

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

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