[PATCH] hrtimers: simplify nanosleep

nanosleep is the only user of the expired state, so let it manage this itself,
which makes the hrtimer code a bit simpler.  The remaining time is also only
calculated if requested.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 84fc186..0e8f476 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -38,9 +38,7 @@
  * Timer states:
  */
 enum hrtimer_state {
-	HRTIMER_INACTIVE,	/* Timer is inactive */
-	HRTIMER_EXPIRED,		/* Timer is expired */
-	HRTIMER_RUNNING,		/* Timer is running the callback function */
+	HRTIMER_INACTIVE,		/* Timer is inactive */
 	HRTIMER_PENDING,		/* Timer is pending */
 };