s390/nohz: use a per-cpu flag for arch_needs_cpu
Move the nohz_delay bit from the s390_idle data structure to the
per-cpu flags. Clear the nohz delay flag in __cpu_disable and
remove the cpu hotplug notifier that used to do this.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 9a82c7d..e5832d0 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -108,7 +108,7 @@
extern void tick_irq_enter(void);
extern int tick_oneshot_mode_active(void);
# ifndef arch_needs_cpu
-# define arch_needs_cpu(cpu) (0)
+# define arch_needs_cpu() (0)
# endif
# else
static inline void tick_clock_notify(void) { }