[PATCH] hrtimers: namespace and enum cleanup

- hrtimers did not use the hrtimer_restart enum and relied on the implict
  int representation. Fix the prototypes and the functions using the enums.
- Use seperate name spaces for the enumerations
- Convert hrtimer_restart macro to inline function
- Add comments

No functional changes.

[akpm@osdl.org: fix input driver]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kernel/rtmutex.c

@@ -625,7 +625,7 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
 	/* Setup the timer, when timeout != NULL */
 	if (unlikely(timeout))
 		hrtimer_start(&timeout->timer, timeout->timer.expires,
-			      HRTIMER_ABS);
+			      HRTIMER_MODE_ABS);
 
 	for (;;) {
 		/* Try to acquire the lock: */