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tick: Remove arch_needs_cpu

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Remove unused arch_needs_cpu() hook. No architectures use it after
s390 removed its use case.

Suggested-by: Heiko Carstens <[email protected]>
Signed-off-by: Mete Durlu <[email protected]>
Reviewed-by: Heiko Carstens <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Acked-by: Rafael J. Wysocki (Intel) <[email protected]>
Signed-off-by: Alexander Gordeev <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
This commit is contained in:
Mete Durlu authored and Vasily Gorbik committed 2026-07-08 17:03:28 +02:00
1 parent 71eabd104e
commit 2bfc9e417a
2 files changed
+3 -7
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include/linux/tick.h
-3
View File
@@ -44,9 +44,6 @@ static inline void tick_unfreeze(void) { }
#ifdef CONFIG_TICK_ONESHOT
extern void tick_irq_enter(void);
# ifndef arch_needs_cpu
# define arch_needs_cpu() (0)
# endif
# else
static inline void tick_irq_enter(void) { }
#endif
kernel/time/tick-sched.c
+3 -4
View File
@@ -828,8 +828,7 @@ static ktime_t tick_nohz_next_event(struct tick_sched *ts, int cpu)
ts->timer_expires_base = basemono;
/*
* Keep the periodic tick, when RCU, architecture or irq_work
* requests it.
* Keep the periodic tick, when RCU or irq_work requests it.
* Aside of that, check whether the local timer softirq is
* pending. If so, its a bad idea to call get_next_timer_interrupt(),
* because there is an already expired timer, so it will request
@@ -837,8 +836,8 @@ static ktime_t tick_nohz_next_event(struct tick_sched *ts, int cpu)
* minimal delta, which brings us back to this place
* immediately. Lather, rinse and repeat...
*/
if (rcu_needs_cpu() || arch_needs_cpu() ||
irq_work_needs_cpu() || local_timer_softirq_pending()) {
if (rcu_needs_cpu() || irq_work_needs_cpu() ||
local_timer_softirq_pending()) {
next_tick = basemono + TICK_NSEC;
} else {
/*