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Commit 76027ea8 authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
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cpuidle/tracing: Denote the tracepoints as being in rcu_idle_exit() section 



As the tracepoints in the cpuidle code are called when rcu_idle_exit() is in
effect, the _rcuidle() version must be used, otherwise the rcu_read_lock()s
that protect the tracepoint will not be honored.

Cc: Len Brown <len.brown@intel.com>
Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>
Reviewed-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 48454650

drivers/cpuidle/cpuidle.c

+4 −4
Original line number Diff line number Diff line
@@ -94,13 +94,13 @@ int cpuidle_idle_call(void) 


	target_state = &drv->states[next_state];



	trace_power_start(POWER_CSTATE, next_state, dev->cpu);

	trace_cpu_idle(next_state, dev->cpu);

	trace_power_start_rcuidle(POWER_CSTATE, next_state, dev->cpu);

	trace_cpu_idle_rcuidle(next_state, dev->cpu);



	entered_state = target_state->enter(dev, drv, next_state);



	trace_power_end(dev->cpu);

	trace_cpu_idle(PWR_EVENT_EXIT, dev->cpu);

	trace_power_end_rcuidle(dev->cpu);

	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);



	if (entered_state >= 0) {

		/* Update cpuidle counters */