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-rw-r--r--kernel/hrtimer.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 0237a556eb1f..877cdf9678bf 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -656,6 +656,25 @@ void hrtimer_run_queues(void)
* Sleep related functions:
*/
+static int hrtimer_wakeup(struct hrtimer *timer)
+{
+ struct hrtimer_sleeper *t =
+ container_of(timer, struct hrtimer_sleeper, timer);
+ struct task_struct *task = t->task;
+
+ t->task = NULL;
+ if (task)
+ wake_up_process(task);
+
+ return HRTIMER_NORESTART;
+}
+
+void hrtimer_init_sleeper(struct hrtimer_sleeper *sl, task_t *task)
+{
+ sl->timer.function = hrtimer_wakeup;
+ sl->task = task;
+}
+
struct sleep_hrtimer {
struct hrtimer timer;
struct task_struct *task;
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