Merge branch 'smp/hotplug' into sched/core, to resolve conflicts

Conflicts:
	kernel/sched/core.c

Signed-off-by: Ingo Molnar <mingo@kernel.org>

4 files changed, 13 insertions, 22 deletions

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index f9b1fab4388a..21597dcac0e2 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -59,25 +59,7 @@ struct notifier_block;
  * CPU notifier priorities.
  */
 enum {
-	/*
-	 * SCHED_ACTIVE marks a cpu which is coming up active during
-	 * CPU_ONLINE and CPU_DOWN_FAILED and must be the first
-	 * notifier.  CPUSET_ACTIVE adjusts cpuset according to
-	 * cpu_active mask right after SCHED_ACTIVE.  During
-	 * CPU_DOWN_PREPARE, SCHED_INACTIVE and CPUSET_INACTIVE are
-	 * ordered in the similar way.
-	 *
-	 * This ordering guarantees consistent cpu_active mask and
-	 * migration behavior to all cpu notifiers.
-	 */
-	CPU_PRI_SCHED_ACTIVE	= INT_MAX,
-	CPU_PRI_CPUSET_ACTIVE	= INT_MAX - 1,
-	CPU_PRI_SCHED_INACTIVE	= INT_MIN + 1,
-	CPU_PRI_CPUSET_INACTIVE	= INT_MIN,
-
-	/* 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/cpuhotplug.h b/include/linux/cpuhotplug.h
index 5d68e15e46b7..386374d19987 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -8,6 +8,7 @@ enum cpuhp_state {
 	CPUHP_BRINGUP_CPU,
 	CPUHP_AP_IDLE_DEAD,
 	CPUHP_AP_OFFLINE,
+	CPUHP_AP_SCHED_STARTING,
 	CPUHP_AP_NOTIFY_STARTING,
 	CPUHP_AP_ONLINE,
 	CPUHP_TEARDOWN_CPU,
@@ -16,6 +17,7 @@ enum cpuhp_state {
 	CPUHP_AP_NOTIFY_ONLINE,
 	CPUHP_AP_ONLINE_DYN,
 	CPUHP_AP_ONLINE_DYN_END		= CPUHP_AP_ONLINE_DYN + 30,
+	CPUHP_AP_ACTIVE,
 	CPUHP_ONLINE,
 };
 
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 40cee6b77a93..e828cf65d7df 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -743,12 +743,10 @@ set_cpu_present(unsigned int cpu, bool present)
 static inline void
 set_cpu_online(unsigned int cpu, bool online)
 {
-	if (online) {
+	if (online)
 		cpumask_set_cpu(cpu, &__cpu_online_mask);
-		cpumask_set_cpu(cpu, &__cpu_active_mask);
-	} else {
+	else
 		cpumask_clear_cpu(cpu, &__cpu_online_mask);
-	}
 }
 
 static inline void
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 57faf789c88f..f8fea8a5b5ab 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -374,6 +374,15 @@ extern void cpu_init (void);
 extern void trap_init(void);
 extern void update_process_times(int user);
 extern void scheduler_tick(void);
+extern int sched_cpu_starting(unsigned int cpu);
+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);