[libvirt] Re: [PATCH] Fix raw storage volume creation for allocation < capacity.

Daniel Veillard veillard at redhat.com
Fri Jun 19 07:44:16 UTC 2009


On Thu, Jun 18, 2009 at 03:13:06PM -0400, Cole Robinson wrote:
> Cole Robinson wrote:
> > CreateXMLFrom changes accidentally caused all raw volume creation to be
> > fully allocated (as though allocation == capacity). Fix this.
> > 
> > Also force CreateXMLFrom to maintain the previous behavior: sparseness
> > should still be maintained since we search for holes when copying, and the
> > clone behavior hasn't been tested with anything but the broken behavior.
[...]
> > +    /* Make sure allocation is at least as large as the destination cap,
> > +     * to make absolutely sure we copy all possible contents */
> > +    if (newvol->allocation < origvol->capacity;
> > +        newvol->allocation = origvol->capacity;
> > +
> 
> Of course the tweak I make at the last second is completely invalid
> syntax :(. Besides needing the obvious fix above, the patch does work as
> expected.

  Heh, ACK to tyhe fixed fix :-)

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
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http://veillard.com/ | virtualization library  http://libvirt.org/




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