diff --git a/[refs] b/[refs]
index f481fe879e96..d0998b3b4ce5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 643bdf68f92a8516574ed7ca3713f9334c331b8d
+refs/heads/master: 592aa999d6a272856c9bfbdaac0cfba1bb37c24c
diff --git a/trunk/include/linux/hrtimer.h b/trunk/include/linux/hrtimer.h
index cb25c1cc2352..58bca8e9bae1 100644
--- a/trunk/include/linux/hrtimer.h
+++ b/trunk/include/linux/hrtimer.h
@@ -103,9 +103,14 @@ enum hrtimer_cb_mode {
 /**
  * struct hrtimer - the basic hrtimer structure
  * @node:	red black tree node for time ordered insertion
- * @expires:	the absolute expiry time in the hrtimers internal
+ * @_expires:	the absolute expiry time in the hrtimers internal
  *		representation. The time is related to the clock on
- *		which the timer is based.
+ *		which the timer is based. Is setup by adding
+ *		slack to the _softexpires value. For non range timers
+ *		identical to _softexpires.
+ * @_softexpires: the absolute earliest expiry time of the hrtimer.
+ *		The time which was given as expiry time when the timer
+ *		was armed.
  * @function:	timer expiry callback function
  * @base:	pointer to the timer base (per cpu and per clock)
  * @state:	state information (See bit values above)