hrtimers: extend hrtimer base code to handle more then 2 clockids
The hrtimer code is written mainly with CLOCK_REALTIME and CLOCK_MONOTONIC
in mind. These are clockids 0 and 1 resepctively. However, if we are
to introduce any new hrtimer bases, using new clockids, we have to skip
the cputimers (clockids 2,3) as well as other clockids that may not impelement
timers.
This patch adds a little bit of indirection between the clockid and
the base, so that we can extend the base by one when we add
a new clockid at number 7 or so.
CC: Jamie Lokier <jamie@shareable.org>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Alexander Shishkin <virtuoso@slind.org>
CC: Arve Hjønnevåg <arve@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index f376ddc..20b8e66 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -148,7 +148,11 @@
#endif
};
-#define HRTIMER_MAX_CLOCK_BASES 2
+enum hrtimer_base_type {
+ HRTIMER_BASE_REALTIME,
+ HRTIMER_BASE_MONOTONIC,
+ HRTIMER_MAX_CLOCK_BASES,
+};
/*
* struct hrtimer_cpu_base - the per cpu clock bases