Re: [PATCH v3 13/22] tracing: Remove regular RCU context for _rcuidle tracepoints (again)

Peter Zijlstra
2020-02-19T16:48:11Z

On Wed, Feb 19, 2020 at 08:43:56AM -0800, Paul E. McKenney wrote:
> On Wed, Feb 19, 2020 at 03:47:37PM +0100, Peter Zijlstra wrote:
> > Effectively revert commit 865e63b04e9b2 ("tracing: Add back in
> > rcu_irq_enter/exit_irqson() for rcuidle tracepoints") now that we've
> > taught perf how to deal with not having an RCU context provided.
> >
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> > ---
> > include/linux/tracepoint.h | 8 ++------
> > 1 file changed, 2 insertions(+), 6 deletions(-)
> >
> > --- a/include/linux/tracepoint.h
> > +++ b/include/linux/tracepoint.h
> > @@ -179,10 +179,8 @@ static inline struct tracepoint *tracepo
>
> Shouldn't we also get rid of this line above?
>
> int __maybe_unused __idx = 0; \
>

Probably makes a lot of sense, lemme fix that!