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-rw-r--r--kernel/sched/idle.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 544a7133cbd1..bd12c6c714ec 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -4,6 +4,7 @@
#include <linux/sched.h>
#include <linux/cpu.h>
#include <linux/cpuidle.h>
+#include <linux/cpuhotplug.h>
#include <linux/tick.h>
#include <linux/mm.h>
#include <linux/stackprotector.h>
@@ -193,8 +194,6 @@ exit_idle:
rcu_idle_exit();
}
-DEFINE_PER_CPU(bool, cpu_dead_idle);
-
/*
* Generic idle loop implementation
*
@@ -221,10 +220,7 @@ static void cpu_idle_loop(void)
rmb();
if (cpu_is_offline(smp_processor_id())) {
- rcu_cpu_notify(NULL, CPU_DYING_IDLE,
- (void *)(long)smp_processor_id());
- smp_mb(); /* all activity before dead. */
- this_cpu_write(cpu_dead_idle, true);
+ cpuhp_report_idle_dead();
arch_cpu_idle_dead();
}
@@ -291,5 +287,6 @@ void cpu_startup_entry(enum cpuhp_state state)
boot_init_stack_canary();
#endif
arch_cpu_idle_prepare();
+ cpuhp_online_idle(state);
cpu_idle_loop();
}