1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 64f8d554fbb8..2ac20b48b2f3 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -121,6 +121,12 @@ static inline int hrtimer_active(const struct hrtimer *timer)
 extern unsigned long hrtimer_forward(struct hrtimer *timer,
                                      const ktime_t interval);
 
+/* Precise sleep: */
+extern long hrtimer_nanosleep(struct timespec *rqtp,
+                              struct timespec __user *rmtp,
+                              const enum hrtimer_mode mode,
+                              const clockid_t clockid);
+
 /* Soft interrupt function to run the hrtimer queues: */
 extern void hrtimer_run_queues(void);