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SubjectRe: [PATCH RT] convert RCU Preempt tasklet into softirq.
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On Thu, 2007-06-07 at 14:02 -0700, Paul E. McKenney wrote:

> Some nits below.
>
> Thanx, Paul
>
> > Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
> >
> > Index: linux-2.6.21-rt9/include/linux/rcupreempt.h
> > ===================================================================
> > --- linux-2.6.21-rt9.orig/include/linux/rcupreempt.h
> > +++ linux-2.6.21-rt9/include/linux/rcupreempt.h
> > @@ -63,7 +63,9 @@ extern void rcu_check_callbacks(int cpu,
> > extern void rcu_restart_cpu(int cpu);
> > extern long rcu_batches_completed(void);
> >
> > -extern void rcu_process_callbacks(unsigned long unused);
> > +struct softirq_action;
> > +
> > +extern void rcu_process_callbacks(struct softirq_action *unused);
>
> I don't understand why the above is needed -- interrupt.h is included,
> and the use of rcu_process_callbacks() follows the definition.
>
> > #endif /* __KERNEL__ */
> > #endif /* __LINUX_RCUPREEMPT_H */

The first time I compiled it, I forgot the ';' and got a warning there.
But the warning also included "declaring structure softirq_action in
prototype", so I fixed both the ';' and added the struct. I can try
compile without it. But I also know that adding #include <interrupt.h>
in rcupreempt.h caused issues too.

-- Steve

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