ARM: OMAP: SmartReflex: Move smartreflex driver to drivers/

[firefly-linux-kernel-4.4.55.git] / kernel / timer.c

diff --git a/kernel/timer.c b/kernel/timer.c
index a297ffcf888eb20093b0609485e03edbd85cd214..837c552fe838a19d9292b95819ab5c1fc1a2048a 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -861,7 +861,13 @@ EXPORT_SYMBOL(mod_timer);
  *
  * mod_timer_pinned() is a way to update the expire field of an
  * active timer (if the timer is inactive it will be activated)
- * and not allow the timer to be migrated to a different CPU.
+ * and to ensure that the timer is scheduled on the current CPU.
+ *
+ * Note that this does not prevent the timer from being migrated
+ * when the current CPU goes offline.  If this is a problem for
+ * you, use CPU-hotplug notifiers to handle it correctly, for
+ * example, cancelling the timer when the corresponding CPU goes
+ * offline.
  *
  * mod_timer_pinned(timer, expires) is equivalent to:
  *