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| author | Steven Rostedt <srostedt@redhat.com> | 2012-02-07 09:46:01 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2012-02-13 09:14:46 -0500 |
| commit | 76027ea863fc02698da536b4970784eed3caa635 (patch) | |
| tree | aef940211f8e9e78b13df1be92517ad51a76089e /drivers/cpuidle | |
| parent | 484546509ce5d49d43ec0a6eb2141c6bf3362bfc (diff) | |
| download | linux-76027ea863fc02698da536b4970784eed3caa635.tar.gz linux-76027ea863fc02698da536b4970784eed3caa635.tar.bz2 linux-76027ea863fc02698da536b4970784eed3caa635.zip | |
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: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 59f4261c753a..6588f43017bd 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -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 */ |