[hrtimer] Change resolution storage to ktime_t format

Change the storage format of the per base resolution to ktime_t to
make it easier accessible in the hrtimers code.

Change the resolution from (NSEC_PER_SEC/HZ) to TICK_NSEC as Roman
pointed out. TICK_NSEC is closer to the real resolution.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index abb674c..98c5c15 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -85,7 +85,7 @@
 	spinlock_t		lock;
 	struct rb_root		active;
 	struct rb_node		*first;
-	unsigned long		resolution;
+	ktime_t			resolution;
 	ktime_t			(*get_time)(void);
 	struct hrtimer		*curr_timer;
 };
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index 222a047..1bd6552 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -272,8 +272,8 @@
  * idea of the (in)accuracy of timers. Timer values are rounded up to
  * this resolution values.
  */
-#define KTIME_REALTIME_RES	(NSEC_PER_SEC/HZ)
-#define KTIME_MONOTONIC_RES	(NSEC_PER_SEC/HZ)
+#define KTIME_REALTIME_RES	(ktime_t){ .tv64 = TICK_NSEC }
+#define KTIME_MONOTONIC_RES	(ktime_t){ .tv64 = TICK_NSEC }
 
 /* Get the monotonic time in timespec format: */
 extern void ktime_get_ts(struct timespec *ts);