Re: [Qemu-devel] [PATCH] machine: replace underscores in machine's property names

[Marcel Apfelbaum <marcel.a@redhat.com>]

On Fri, 2014-07-18 at 16:15 +0200, Andreas Färber wrote:
> Am 17.07.2014 19:00, schrieb Paolo Bonzini:
> > Il 17/07/2014 18:47, Michael Roth ha scritto:
> >>> > My argument for getting this into 2.1 had been to avoid tools
> >>> picking up
> >>> > these to-be-renamed property names from the start. At this point, I'm
> >>> > not so sure whether it's worse to break management tools or
> >>> potentially
> >>> > some rarely used/tested option - if we decide for 2.2, is
> >>> backporting to
> >>> > 2.1.1 an option if we document it in the release notes?
> >> IMO, if there's some risk to breaking management or other tools, I'd
> >> rather it be left to major releases. And if these values are already
> >> misnamed
> >> for 2.1.0 and prior, I don't think we stop it from poliferating much
> >> more by
> >> pushing the fix up by a few months.
> > 
> > I'm not sure in which case management could break (except for qom-get).
> >  Andreas, can you explain?
> 
> I was mainly concerned about qom-set, but same goes for qom-get. The
> breakage would be in 2.2, if in 2.1 we introduce properties with foo_bar
> and rename them to foo-bar in 2.2. Since they're not in 2.0, I had asked
> Marcel to rename them for 2.1 on a KVM call.
> 
> I checked that sPAPR is not affected, so the only issue is the trivial
> g_free(). Since apart from sPAPR we have a compact snippet of properties
> being added, grep'ing for occurrences of the old strings and verifying
> that the patch changes all properties should be safe for -rc3 if Peter
> would be willing to take a pull.
Hi,

The patch only affects machine properties.
The patch will be upstream in a few minutes. Sorry for the delay.

Thanks,
Marcel
> 
> Andreas
>