Re: [LTP] [PATCH 1/2] sched_setparam/9-1: fix hang on -rt kernel

[Cyril Hrubis <chrubis@suse.cz>]

Hi!
> > > I think you're right in scenario with single CPU.
> > > In theory, is it possible that set_affinity() would be dummy, and one of
> > > ncpu-1 children running with max FIFO priority would preempt parent
> > > allowing test_process() to run before its priority is changed?
> > 
> > Aren't the child proceesses forked with the same priority as the parent?
> > In this case they shouldn't get executed for the same reason unless they
> > are migrated other CPUs. But yes then it's a kind of unpredictable which
> > is the reason we have the affinity call there.
> 
> Would you prefer I rewrite that comment? Or are you OK with the patch as it is?

It would be better to make the comment more clear.

-- 
Cyril Hrubis
chrubis@suse.cz

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