On Thu, 26 Mar 2015 14:37:13 +0100 Paolo Bonzini <pbonz...@redhat.com> wrote:
> > > On 26/03/2015 11:29, Igor Mammedov wrote: > > What value of ref, one would use to decide if deletion is possible? > > > > In generic case object can have ref > 1 but still be eligible for deleting > > via object-del. > > Right, for example devices are unparented with ref > 1. > > Still, it could be a sane default implementation. It doesn't even need > a function pointer until someone comes up with an object that has > different needs. Not in case of memory backend, its 'ref' in unused state is 2 since it contains at least one child, backend object is owner of MemoryRegion. > Paolo
