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authorSandeep Tripathy <sandeep.tripathy@linaro.org>2014-07-02 13:30:58 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-09 17:45:23 +0400
commit30fe6884021b9fa0124609e898a6341be188eb44 (patch)
treef8c7edee62a0c1b01622ccbcf1e166b368822c3d /kernel/sched
parentcd3de83f147601356395b57a8673e9c5ff1e59d1 (diff)
downloadlinux-30fe6884021b9fa0124609e898a6341be188eb44.tar.xz
cpuidle: move idle traces to cpuidle_enter_state()
idle_exit event is the first event after a core exits idle state. So this should be traced before local irq is ebabled. Likewise idle_entry is the last event before a core enters idle state. This will ease visualising the cpu idle state from kernel traces. Signed-off-by: Sandeep Tripathy <sandeep.tripathy@linaro.org> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> [rjw: Subject, rebase] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/idle.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index cf009fb0bc25..658a58dc30f4 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -147,8 +147,6 @@ use_default:
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu))
goto use_default;
- trace_cpu_idle_rcuidle(next_state, dev->cpu);
-
/*
* Enter the idle state previously returned by the governor decision.
* This function will block until an interrupt occurs and will take
@@ -156,8 +154,6 @@ use_default:
*/
entered_state = cpuidle_enter(drv, dev, next_state);
- trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
-
if (broadcast)
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);