Ingo Molnar wrote:
> 
> On Wed, 24 Jul 2002, Christoph Hellwig wrote:
> 
> > >  - move the irqs-off check into preempt_schedule() and remove
> > >    CONFIG_DEBUG_IRQ_SCHEDULE.
> >
> > the config.in entry is still present..
> 
> indeed. Fix is in -H5:

We need to verify correct usage of the
irq_enable/irq_restore() least we miss a preemption.  The
attached patch allows one to enable a test on the these
macros to verify that they are being correctly used.

Ingo, I am not sure about the change in fork.c.  Don't we
always want to check for preemption at the end of this
irq_disable?

Patch is against Ingo's H6.
-- 
George Anzinger   george@mvista.com
High-res-timers: 
http://sourceforge.net/projects/high-res-timers/
Real time sched:  http://sourceforge.net/projects/rtsched/
Preemption patch:
http://www.kernel.org/pub/linux/kernel/people/rml