clocksource: prevent selection of low resolution clocksourse also for nohz=on
commit 3f68535adad (clocksource: sanity check sysfs clocksource
changes) prevents selection of non high resolution capable
clocksources when high resolution mode is active, but did not take
into account that the same rules apply for highres=off nohz=on.
Check the tick device mode instead of hrtimer_hres_active() to verify
whether the system needs to be protected from a switch to jiffies or
other non highres capable clock sources.
Reported-by: Luming Yu <luming.yu@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 58021b0..0d2f7c8 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -305,7 +305,7 @@
extern ktime_t ktime_get(void);
extern ktime_t ktime_get_real(void);
-extern int hrtimer_hres_active(void);
+
DECLARE_PER_CPU(struct tick_device, tick_cpu_device);