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Re: [Libvir] <disk> <shareable/> has no effect



On Wed, Nov 21, 2007 at 11:14:18AM -0500, Daniel Veillard wrote:
> On Fri, Nov 16, 2007 at 10:09:19AM -0500, Daniel Veillard wrote:
> > On Wed, Nov 14, 2007 at 06:55:31PM +0100, Markus Armbruster wrote:
> > > Looks like <shareable/> within <disk> has no effect.  I ran virsh
> > > dumpxml, inserted the <shareable/>, redefined the domain, and ran
> > > virsh dumpxml again.  No shareable.  I even ran virsh undefine and
> > > virsh define again, same thing.
> > > 
> > 
> >   Strange, I noticed that there were no test of the conversion for 
> > "w!" to and from <shareable/>, so I added tests based on yours but
> > they work as expected in the conversion routines as tested. So I admit
> > I'm a bit lost to what could have caused the problem. Since the 
> > xml dump includes the "w!" I would assume the part going from 
> > the XML file for creation of the domain worked as expected, but it's
> > when dumping back the domain that you got the missing  <shareable/>,
> > right ? Was the domain running at that point ? If on RHEL-5(.1) and
> > for a defined but non-running domain, the dump routine could use a 
> > different path.
> 
>   Okay, checked and confirmed if you build from a defined domain 
> it uses the xm_internal.c backend and in xenXMDomainFormatXML we
> forgot to check for 'w!' and dump the <shareable/> element. The
> fix is trivial, enclosed, and I will commit it tomorrow unless
> someone disagrees,

Xen allows both '!' and 'w!'  to mean shareable, so you need to
check for both. Aside from that, its fine.

Regards,
Dan.
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