Re: [Ksummit-discuss] [TECH TOPIC] Mainlining PREEMPT_RT

["Luis R. Rodriguez" <mcgrof@suse.com>]

On Wed, Oct 14, 2015 at 12:40:10AM +0200, Rafael J. Wysocki wrote:
> On Tuesday, October 13, 2015 12:42:30 PM Steven Rostedt wrote:
> > 
> > Now that it was announced in Dublin last week that mainlining
> > PREEMPT_RT has funding, I would like to propose a tech topic to discuss
> > what is needed to be done in the near future.
> > 
> > Thomas Gleixner and his minions will be doing the brunt of the work,
> > but there's issues that need to be addressed with the rest of the
> > kernel. The various topics would include:
> > 
> >  CPU hotplug
> >  preempt_disable and local_irq_disable annotations
> >  new timer_wheel implementation
> >  simple waitqueues
> >  trylock boosting
> > 
> > Several of the Real Time developers will be present at kernel summit. I
> > think this would be a great opportunity to have them be able to sit
> > down together and discuss the remaining issues.
> 
> Well, that's not limited to the RT developers even.
> 
> Good topic.

How much of this is the above topics Vs lack of good semantics in general, or
code which needs love / good design? I ask as we have a few 'semantic'
discussions, and I have a feeling there might be overlap.

  Luis