From a12d59168233eb1ef96732c4ee45890e96fa5550 Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Wed, 15 Jun 2011 17:21:57 -0700 Subject: Move x86_64 idle notifiers to generic Move the x86_64 idle notifiers originally by Andi Kleen and Venkatesh Pallipadi to generic. Change-Id: Idf29cda15be151f494ff245933c12462643388d5 Acked-by: Nicolas Pitre Signed-off-by: Todd Poynor --- kernel/cpu.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'kernel/cpu.c') diff --git a/kernel/cpu.c b/kernel/cpu.c index 2060c6e5702..fb4a5acc016 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -668,3 +668,23 @@ void init_cpu_online(const struct cpumask *src) { cpumask_copy(to_cpumask(cpu_online_bits), src); } + +static ATOMIC_NOTIFIER_HEAD(idle_notifier); + +void idle_notifier_register(struct notifier_block *n) +{ + atomic_notifier_chain_register(&idle_notifier, n); +} +EXPORT_SYMBOL_GPL(idle_notifier_register); + +void idle_notifier_unregister(struct notifier_block *n) +{ + atomic_notifier_chain_unregister(&idle_notifier, n); +} +EXPORT_SYMBOL_GPL(idle_notifier_unregister); + +void idle_notifier_call_chain(unsigned long val) +{ + atomic_notifier_call_chain(&idle_notifier, val, NULL); +} +EXPORT_SYMBOL_GPL(idle_notifier_call_chain); -- cgit v1.2.3