DBus in the kernel?

[John Palmieri]

----- "Lennart Poettering" <mzqohf at 0pointer.de> wrote:

> On Mon, 04.01.10 12:33, John Palmieri (johnp at redhat.com) wrote:
> 
> > > > While browsing stackoverflow.com, I came across a post by
> someone,
> > > > that said that there were some people working on moving dbus
> into
> > > the
> > > > kernel (apparently this was announced during one of the linux
> > > plumbers
> > > > conferences). I haven't been able to find anything though, so
> can
> > > > someone confirm this and if so is there anything I can read
> about
> > > the
> > > > progress of this project?
> > > 
> > > This was never mentioned on this mailing list, which is where
> D-Bus 
> > > development occurs.
> > > 
> > 
> > Marcel Holtmann has been working on this for some time I believe
> and
> > Linus has said it is something he thinks should be in the kernel.
> > Not sure if the work is dead or not but it isn't coming out or
> being
> > proposed for inclusion any time soon.  Even if it does I think it
> > will only be the kernel being able to send events in D-Bus' native
> > format, not really a in-kernel bus.  I personally would like to see
> > an in kernel bus as it could cut down on the amount of context
> > switches and memcpys as well as show other performance gains but in
> > all reality the current setup works fine and is portable to almost
> > any operating system.
> 
> Someone at Collabora is now working on this.
> 
> The hard part is how to move the policy enforcement logic into the
> kernel.
> 
> Lennart

Couldn't this be done similar to how iptables does policy?

--
John (J5) Palmieri
Software Engineer
Red Hat, Inc.