[PATCH 2/2] powerpc: tracing: don't trace hcalls on offline CPUs

Steven Rostedt rostedt at goodmis.org
Tue Dec 8 08:33:43 AEDT 2015


On Tue, 08 Dec 2015 08:02:15 +1100
Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote:

> On Mon, 2015-12-07 at 15:52 -0500, Steven Rostedt wrote:
> > > +     TP_CONDITION(cpu_online(smp_processor_id())),
> > > +  
> 
> This should probably be some kind of __raw version though, hcalls can
> be called in contexts where the debug stuff in smp_processor_id() isn't
> safe (or preempt enabled).
> 

OK, then that needs to be updated.

-- Steve


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