summaryrefslogtreecommitdiffstats
path: root/kernel/sched/idle.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/sched/idle.c')
-rw-r--r--kernel/sched/idle.c43
1 files changed, 24 insertions, 19 deletions
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index fefcb1f..ae7c0be 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -67,6 +67,18 @@ void __weak arch_cpu_idle(void)
local_irq_enable();
}
+static void default_idle_call(void)
+{
+ /*
+ * We can't use the cpuidle framework, let's use the default idle
+ * routine.
+ */
+ if (current_clr_polling_and_test())
+ local_irq_enable();
+ else
+ arch_cpu_idle();
+}
+
/**
* cpuidle_idle_call - the main idle function
*
@@ -105,8 +117,10 @@ static void cpuidle_idle_call(void)
*/
rcu_idle_enter();
- if (cpuidle_not_available(drv, dev))
- goto use_default;
+ if (cpuidle_not_available(drv, dev)) {
+ default_idle_call();
+ goto exit_idle;
+ }
/*
* Suspend-to-idle ("freeze") is a system state in which all user space
@@ -134,8 +148,10 @@ static void cpuidle_idle_call(void)
next_state = cpuidle_select(drv, dev);
}
/* Fall back to the default arch idle method on errors. */
- if (next_state < 0)
- goto use_default;
+ if (next_state < 0) {
+ default_idle_call();
+ goto exit_idle;
+ }
/*
* The idle task must be scheduled, it is pointless to
@@ -162,8 +178,10 @@ static void cpuidle_idle_call(void)
/* The cpu is no longer idle or about to enter idle. */
idle_set_state(this_rq(), NULL);
- if (entered_state == -EBUSY)
- goto use_default;
+ if (entered_state == -EBUSY) {
+ default_idle_call();
+ goto exit_idle;
+ }
/*
* Give the governor an opportunity to reflect on the outcome
@@ -182,19 +200,6 @@ exit_idle:
rcu_idle_exit();
start_critical_timings();
- return;
-
-use_default:
- /*
- * We can't use the cpuidle framework, let's use the default
- * idle routine.
- */
- if (current_clr_polling_and_test())
- local_irq_enable();
- else
- arch_cpu_idle();
-
- goto exit_idle;
}
DEFINE_PER_CPU(bool, cpu_dead_idle);
OpenPOWER on IntegriCloud