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

From	Steven Rostedt <rostedt@goodmis.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 2/2] powerpc: tracing: don't trace hcalls on offline CPUs
Date	2015-12-07 22:40 +0100
Message-ID	<qDbFN-1D6-47@gated-at.bofh.it> (permalink)
References	<qyqvL-3iT-5@gated-at.bofh.it> <qyqvM-3iT-23@gated-at.bofh.it> <qDb34-14n-15@gated-at.bofh.it> <qDbcJ-1od-11@gated-at.bofh.it>
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On Tue, 08 Dec 2015 08:02:15 +1100
Benjamin Herrenschmidt <benh@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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Re: [PATCH 2/2] powerpc: tracing: don't trace hcalls on offline  CPUs Steven Rostedt <rostedt@goodmis.org> - 2015-12-07 22:00 +0100
  Re: [PATCH 2/2] powerpc: tracing: don't trace hcalls on offline CPUs Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2015-12-07 22:10 +0100
    Re: [PATCH 2/2] powerpc: tracing: don't trace hcalls on offline  CPUs Steven Rostedt <rostedt@goodmis.org> - 2015-12-07 22:40 +0100

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