[tip: sched/core] sched: Unify HK_TYPE_{TIMER|TICK|MISC} to HK_TYPE_KERNEL_NOISE

[tip-bot2 for Waiman Long]

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     c907cd44a108eff7005a2b5689bb91f50637df8b
Gitweb:        https://git.kernel.org/tip/c907cd44a108eff7005a2b5689bb91f50637df8b
Author:        Waiman Long <longman@xxxxxxxxxx>
AuthorDate:    Wed, 30 Oct 2024 13:52:53 -04:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Mon, 02 Dec 2024 12:24:28 +01:00

sched: Unify HK_TYPE_{TIMER|TICK|MISC} to HK_TYPE_KERNEL_NOISE

As all the non-domain and non-managed_irq housekeeping types have been
unified to HK_TYPE_KERNEL_NOISE, replace all these references in the
scheduler to use HK_TYPE_KERNEL_NOISE.

Signed-off-by: Waiman Long <longman@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Acked-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20241030175253.125248-5-longman@xxxxxxxxxx
---
 kernel/sched/core.c | 12 ++++++------
 kernel/sched/fair.c |  5 +++--
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1dee3f5..5fbec67 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1170,13 +1170,13 @@ int get_nohz_timer_target(void)
 	struct sched_domain *sd;
 	const struct cpumask *hk_mask;
 
-	if (housekeeping_cpu(cpu, HK_TYPE_TIMER)) {
+	if (housekeeping_cpu(cpu, HK_TYPE_KERNEL_NOISE)) {
 		if (!idle_cpu(cpu))
 			return cpu;
 		default_cpu = cpu;
 	}
 
-	hk_mask = housekeeping_cpumask(HK_TYPE_TIMER);
+	hk_mask = housekeeping_cpumask(HK_TYPE_KERNEL_NOISE);
 
 	guard(rcu)();
 
@@ -1191,7 +1191,7 @@ int get_nohz_timer_target(void)
 	}
 
 	if (default_cpu == -1)
-		default_cpu = housekeeping_any_cpu(HK_TYPE_TIMER);
+		default_cpu = housekeeping_any_cpu(HK_TYPE_KERNEL_NOISE);
 
 	return default_cpu;
 }
@@ -5634,7 +5634,7 @@ void sched_tick(void)
 	unsigned long hw_pressure;
 	u64 resched_latency;
 
-	if (housekeeping_cpu(cpu, HK_TYPE_TICK))
+	if (housekeeping_cpu(cpu, HK_TYPE_KERNEL_NOISE))
 		arch_scale_freq_tick();
 
 	sched_clock_tick();
@@ -5773,7 +5773,7 @@ static void sched_tick_start(int cpu)
 	int os;
 	struct tick_work *twork;
 
-	if (housekeeping_cpu(cpu, HK_TYPE_TICK))
+	if (housekeeping_cpu(cpu, HK_TYPE_KERNEL_NOISE))
 		return;
 
 	WARN_ON_ONCE(!tick_work_cpu);
@@ -5794,7 +5794,7 @@ static void sched_tick_stop(int cpu)
 	struct tick_work *twork;
 	int os;
 
-	if (housekeeping_cpu(cpu, HK_TYPE_TICK))
+	if (housekeeping_cpu(cpu, HK_TYPE_KERNEL_NOISE))
 		return;
 
 	WARN_ON_ONCE(!tick_work_cpu);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ef30226..d5127d9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -12203,7 +12203,7 @@ static inline int find_new_ilb(void)
 	const struct cpumask *hk_mask;
 	int ilb_cpu;
 
-	hk_mask = housekeeping_cpumask(HK_TYPE_MISC);
+	hk_mask = housekeeping_cpumask(HK_TYPE_KERNEL_NOISE);
 
 	for_each_cpu_and(ilb_cpu, nohz.idle_cpus_mask, hk_mask) {
 
@@ -12221,7 +12221,8 @@ static inline int find_new_ilb(void)
  * Kick a CPU to do the NOHZ balancing, if it is time for it, via a cross-CPU
  * SMP function call (IPI).
  *
- * We pick the first idle CPU in the HK_TYPE_MISC housekeeping set (if there is one).
+ * We pick the first idle CPU in the HK_TYPE_KERNEL_NOISE housekeeping set
+ * (if there is one).
  */
 static void kick_ilb(unsigned int flags)
 {