[PATCH RFC idle 2/3] arm: Avoid invoking RCU when CPU is idle

"Paul E. McKenney" [off-list ref] writes:

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The two options I see are:

1.	Rip tracing out of the inner idle loops and everything that
	they invoke.

What I suggested above.  But as I said I know sh*t about that tracing 
implementation so that's an easy suggestion for me to make.

Works for me as well.  ;-)

While I must admit not having a better suggestion, I for one would vote
strongly against removing tracing from the idle path.

Being a PM developer and maintainer, much of the code I work on and
maintain happens to be run in the bowels of the idle path.  Not having
the ability to trace this code would be a major step backwards IMO.

Kevin