sched/hotplug: Move migration CPU_DYING to sched_cpu_dying()
Remove the hotplug notifier and make it an explicit state.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160310120025.502222097@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index b22b000..21597dc 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -59,9 +59,7 @@
* CPU notifier priorities.
*/
enum {
- /* migration should happen before other stuff but after perf */
CPU_PRI_PERF = 20,
- CPU_PRI_MIGRATION = 10,
/* bring up workqueues before normal notifiers and down after */
CPU_PRI_WORKQUEUE_UP = 5,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1e5f961..47835cf 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -376,6 +376,12 @@
extern int sched_cpu_activate(unsigned int cpu);
extern int sched_cpu_deactivate(unsigned int cpu);
+#ifdef CONFIG_HOTPLUG_CPU
+extern int sched_cpu_dying(unsigned int cpu);
+#else
+# define sched_cpu_dying NULL
+#endif
+
extern void sched_show_task(struct task_struct *p);
#ifdef CONFIG_LOCKUP_DETECTOR
