Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.32-6

[Ingo Molnar <mingo@elte.hu>]

* Steven Rostedt <rostedt@goodmis.org> wrote:

> > One thing that I noticed in this thread is that even though you were talking
> > about the mechanisms to support these features, it really needs some
> > consideration as to how it's going to effect the stock kernel since you're
> > really introduction a first-class threading object/concept into the system.
> > That means changes to the scheduler, how QoS fits into this, etc...
> > IMO, it's ultimately about QoS and that alone is a hot button since it's
> > so invasive throughout the kernel.
> 
> Is there any talk about Ingo's patch getting into the mainstream
> kernel?

a good number of generic bits (generic irq subsystem, preemption
fixes/enhancements, lock initializer cleanups, and tons of fixes found
in -RT) are upstream or in -mm already, but the core PREEMPT_RT stuff is
still under development and thus not ready for upstream. I'm constantly
sending independent bits (fixes or orthogonal improvements) that show up
in -RT towards upstream as well. [-RT would be a 1MB unmaintainable
patch otherwise.]

	Ingo