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-rw-r--r--include/linux/hrtimer.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 6d93dce61cbb..bdd88df1b4e5 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -67,9 +67,10 @@ enum hrtimer_cb_mode {
* 0x02 callback function running
* 0x04 callback pending (high resolution mode)
*
- * Special case:
+ * Special cases:
* 0x03 callback function running and enqueued
* (was requeued on another CPU)
+ * 0x09 timer was migrated on CPU hotunplug
* The "callback function running and enqueued" status is only possible on
* SMP. It happens for example when a posix timer expired and the callback
* queued a signal. Between dropping the lock which protects the posix timer
@@ -87,6 +88,7 @@ enum hrtimer_cb_mode {
#define HRTIMER_STATE_ENQUEUED 0x01
#define HRTIMER_STATE_CALLBACK 0x02
#define HRTIMER_STATE_PENDING 0x04
+#define HRTIMER_STATE_MIGRATE 0x08
/**
* struct hrtimer - the basic hrtimer structure