Re: [PATCH 16/16] perf, persistent: Allow multiple users for an event

[Robert Richter]

On 04.06.13 11:35:22, Borislav Petkov wrote:
> On Tue, Jun 04, 2013 at 11:19:21AM +0200, Jiri Olsa wrote:
> > 'cpu' did not pass ay check here..
> 
> Oh, I see.
> 
> You mean something like
> 
> 	if (cpu < NR_CPUS && cpu_online(cpu))

In perf_event_alloc() there is:

        if ((unsigned)cpu >= nr_cpu_ids) {
                if (!task || cpu != -1)
                        return ERR_PTR(-EINVAL);
        }

So this should be sufficient:

	if ((unsigned)cpu >= nr_cpu_ids)
		...

-Robert
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