[PATCH 16/17] treewide, timers: Rename NEXT_TIMER_MAX_DELTA => TIMER_NEXT_MAX_DELTA

Ingo Molnar
2025-04-14T10:23:45Z

Move this macro to the canonical TIMER_* namespace.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/powerpc/kvm/booke.c | 8 ++++----
include/linux/timer.h | 2 +-
kernel/time/timer.c | 12 ++++++------
3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 5322a9dea19d..71ffbf917dae 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -572,7 +572,7 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,

/*
* Return the number of jiffies until the next timeout. If the timeout is
- * longer than the NEXT_TIMER_MAX_DELTA, then return NEXT_TIMER_MAX_DELTA
+ * longer than the TIMER_NEXT_MAX_DELTA, then return TIMER_NEXT_MAX_DELTA
* because the larger value can break the timer APIs.
*/
static unsigned long watchdog_next_timeout(struct kvm_vcpu *vcpu)
@@ -598,7 +598,7 @@ static unsigned long watchdog_next_timeout(struct kvm_vcpu *vcpu)
if (do_div(nr_jiffies, tb_ticks_per_jiffy))
nr_jiffies++;

- return min_t(unsigned long long, nr_jiffies, NEXT_TIMER_MAX_DELTA);
+ return min_t(unsigned long long, nr_jiffies, TIMER_NEXT_MAX_DELTA);
}

static void arm_next_watchdog(struct kvm_vcpu *vcpu)
@@ -616,10 +616,10 @@ static void arm_next_watchdog(struct kvm_vcpu *vcpu)
spin_lock_irqsave(&vcpu->arch.wdt_lock, flags);
nr_jiffies = watchdog_next_timeout(vcpu);
/*
- * If the number of jiffies of watchdog timer >= NEXT_TIMER_MAX_DELTA
+ * If the number of jiffies of watchdog timer >= TIMER_NEXT_MAX_DELTA
* then do not run the watchdog timer as this can break timer APIs.
*/
- if (nr_jiffies < NEXT_TIMER_MAX_DELTA)
+ if (nr_jiffies < TIMER_NEXT_MAX_DELTA)
timer_mod(&vcpu->arch.wdt_timer, jiffies + nr_jiffies);
else
timer_delete(&vcpu->arch.wdt_timer);
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 0f0531e827c4..dcc791bf84a4 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -156,7 +156,7 @@ extern int timer_reduce(struct timer_list *timer, unsigned long expires);
* The jiffies value which is added to now, when there is no timer
* in the timer wheel:
*/
-#define NEXT_TIMER_MAX_DELTA ((1UL << 30) - 1)
+#define TIMER_NEXT_MAX_DELTA ((1UL << 30) - 1)

extern void timer_add(struct timer_list *timer);
extern void timer_add_local(struct timer_list *timer);
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 2ea735fa47fb..cba4f1118263 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1900,7 +1900,7 @@ static void timer_recalc_next_expiry(struct timer_base *base)
unsigned long clk, next, adj;
unsigned lvl, offset = 0;

- next = base->clk + NEXT_TIMER_MAX_DELTA;
+ next = base->clk + TIMER_NEXT_MAX_DELTA;
clk = base->clk;
for (lvl = 0; lvl < LVL_DEPTH; lvl++, offset += LVL_SIZE) {
int pos = next_pending_bucket(base, offset, clk & LVL_MASK);
@@ -1963,7 +1963,7 @@ static void timer_recalc_next_expiry(struct timer_base *base)

WRITE_ONCE(base->next_expiry, next);
base->next_expiry_recalc = false;
- base->timers_pending = !(next == base->clk + NEXT_TIMER_MAX_DELTA);
+ base->timers_pending = !(next == base->clk + TIMER_NEXT_MAX_DELTA);
}

#ifdef CONFIG_NO_HZ_COMMON
@@ -2015,7 +2015,7 @@ static unsigned long next_timer_interrupt(struct timer_base *base,
* easy comparable to find out which base holds the first pending timer.
*/
if (!base->timers_pending)
- WRITE_ONCE(base->next_expiry, basej + NEXT_TIMER_MAX_DELTA);
+ WRITE_ONCE(base->next_expiry, basej + TIMER_NEXT_MAX_DELTA);

return base->next_expiry;
}
@@ -2399,7 +2399,7 @@ static inline void __run_timers(struct timer_base *base)
* timer at this clk are that all matching timers have been
* dequeued or no timer has been queued since
* base::next_expiry was set to base::clk +
- * NEXT_TIMER_MAX_DELTA.
+ * TIMER_NEXT_MAX_DELTA.
*/
WARN_ON_ONCE(!levels && !base->next_expiry_recalc
&& base->timers_pending);
@@ -2544,7 +2544,7 @@ int timers_prepare_cpu(unsigned int cpu)
for (b = 0; b < NR_BASES; b++) {
base = per_cpu_ptr(&timer_bases[b], cpu);
base->clk = jiffies;
- base->next_expiry = base->clk + NEXT_TIMER_MAX_DELTA;
+ base->next_expiry = base->clk + TIMER_NEXT_MAX_DELTA;
base->next_expiry_recalc = false;
base->timers_pending = false;
base->is_idle = false;
@@ -2599,7 +2599,7 @@ static void __init init_timer_cpu(int cpu)
base->cpu = cpu;
raw_spin_lock_init(&base->lock);
base->clk = jiffies;
- base->next_expiry = base->clk + NEXT_TIMER_MAX_DELTA;
+ base->next_expiry = base->clk + TIMER_NEXT_MAX_DELTA;
timer_base_init_expiry_lock(base);
}
}
--
2.45.2