Add hrtimer_start_on() support

This patch adds hrtimer_start_on(), which allows arming timers on
remote CPUs.  This is needed to avoided timer interrupts on "shielded"
CPUs and is also useful for implementing semi-partitioned schedulers.

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/smp.h b/include/linux/smp.h
index c4414074bd88..dfc63fe33a63 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -103,6 +103,11 @@ void kick_all_cpus_sync(void);
 void wake_up_all_idle_cpus(void);
 
 /*
+ * sends a 'pull timer' event to a remote CPU
+ */
+extern void smp_send_pull_timers(int cpu);
+
+/*
  * Generic and arch helpers
  */
 void __init call_function_init(void);