On Wed, Jun 05, 2013 at 10:33:05AM -0500, Anthony Liguori wrote: > "Michael S. Tsirkin" <[email protected]> writes: > > > On Wed, Jun 05, 2013 at 07:53:05AM -0500, Anthony Liguori wrote: > >> "Michael S. Tsirkin" <[email protected]> writes: > >> > >> > On Wed, Jun 05, 2013 at 11:50:52AM +0200, Andreas Färber wrote: > >> >> Am 04.06.2013 20:51, schrieb Paolo Bonzini: > >> >> > This series changes all PCI devices (the sole to support hotplug > >> >> > _and_ use MemoryRegions) to do memory_region_del_subregion at > >> >> > unrealize time, and memory_region_destroy at instance_finalize > >> >> > time. > >> >> > >> >> The general idea looks good. > >> >> > >> >> Could you please follow-up with a patch that switches from exit to > >> >> unrealize? > >> > > >> > What do you guys think about changing the name to something > >> > else e.g. "free" or "destroy"? > >> > >> exit/unrealize != free/destroy. > >> > >> You don't actually free anything. See 00/39 in this series for a > >> precise description. > > > > That's where I got this. It says: > > "instance_finalize will reclaim the memory" > > I'm not sure what you're talking about. > > There are two callbacks: exit and instance_finalize. > > exit() is called to disconnect the device to the guest. Andreas is > proposing renaming it to unrealize. > > Ideally, reset() would be implemented as a combination of calls to > unrealize() + realize() (or exit() + init() as they are named today). > > Nothing should be freed in exit. > > instance_finalize is only called once, before the object is freed(). It > should be used to release resources associated with the object. > > Paolo is using this to destroy memory regions. Normally this callback > is never used because child objects are automatically handled by QOM. > > "finalize" is the standard name of the hook that gets called before > garbage collection as Andreas previously pointed out.
I am simply asking for function names to tell us what they do, not when they are called. > It's this way in > Java, Python, C#, etc. Well bringing in idioms from more languages just serves to confuse readers even more. > Regards, > > Anthony Liguori > > > > >> > http://dictionary.cambridge.org/spellcheck/american-english/?q=unrealize > >> > >> English is a fluid language. I wouldn't worry too much about that. > >> > >> Regards, > >> > >> Anthony Liguori > > > > Well I am not worried about English at all. > > I'm just confused by the function naming, and > > I think it can be improved. > > > > Can we have names actually say what a function is > > doing? There's no need to use ambiguous terms and then > > document what they mean. > > > > > >> > I can do it easily if people agree. > >> > > >> >> use BUS(), PCI_DEVICE() etc. to hide this. > >> >> > >> >> Andreas > >> >> > >> >> -- > >> >> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany > >> >> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
