linux-kernel - [PATCH 04/13] sched/balancing: Rename rebalance_domains() => sched_balance

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Message-Id: <20240308111819.1101550-5-mingo@kernel.org>
Date: Fri,  8 Mar 2024 12:18:10 +0100
From: Ingo Molnar <mingo@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Dietmar Eggemann <dietmar.eggemann@....com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Shrikanth Hegde <sshegde@...ux.ibm.com>,
	Valentin Schneider <vschneid@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>
Subject: [PATCH 04/13] sched/balancing: Rename rebalance_domains() => sched_balance_domains()

Standardize scheduler load-balancing function names on the
sched_balance_() prefix.

Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Vincent Guittot <vincent.guittot@...aro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@....com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Valentin Schneider <vschneid@...hat.com>
---
 Documentation/scheduler/sched-domains.rst                    | 2 +-
 Documentation/translations/zh_CN/scheduler/sched-domains.rst | 2 +-
 arch/arm/kernel/topology.c                                   | 2 +-
 kernel/sched/fair.c                                          | 8 ++++----
 kernel/sched/sched.h                                         | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Documentation/scheduler/sched-domains.rst b/Documentation/scheduler/sched-domains.rst
index c7ea05f4107b..5d8e8b8b269e 100644
--- a/Documentation/scheduler/sched-domains.rst
+++ b/Documentation/scheduler/sched-domains.rst
@@ -34,7 +34,7 @@ out of balance are tasks moved between groups.
 In kernel/sched/core.c, sched_balance_trigger() is run periodically on each CPU
 through sched_tick(). It raises a softirq after the next regularly scheduled
 rebalancing event for the current runqueue has arrived. The actual load
-balancing workhorse, sched_balance_softirq()->rebalance_domains(), is then run
+balancing workhorse, sched_balance_softirq()->sched_balance_domains(), is then run
 in softirq context (SCHED_SOFTIRQ).
 
 The latter function takes two arguments: the runqueue of current CPU and whether
diff --git a/Documentation/translations/zh_CN/scheduler/sched-domains.rst b/Documentation/translations/zh_CN/scheduler/sched-domains.rst
index 1a8587a971f9..e6590fd80640 100644
--- a/Documentation/translations/zh_CN/scheduler/sched-domains.rst
+++ b/Documentation/translations/zh_CN/scheduler/sched-domains.rst
@@ -36,7 +36,7 @@ CPU共享。任意两个组的CPU掩码的交集不一定为空，如果是这
 
 在kernel/sched/core.c中，sched_balance_trigger()在每个CPU上通过sched_tick()
 周期执行。在当前运行队列下一个定期调度再平衡事件到达后，它引发一个软中断。负载均衡真正
-的工作由sched_balance_softirq()->rebalance_domains()完成，在软中断上下文中执行
+的工作由sched_balance_softirq()->sched_balance_domains()完成，在软中断上下文中执行
 （SCHED_SOFTIRQ）。
 
 后一个函数有两个入参：当前CPU的运行队列、它在sched_tick()调用时是否空闲。函数会从
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index ef0058de432b..2336ee2aa44a 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -42,7 +42,7 @@
  * can take this difference into account during load balance. A per cpu
  * structure is preferred because each CPU updates its own cpu_capacity field
  * during the load balance except for idle cores. One idle core is selected
- * to run the rebalance_domains for all idle cores and the cpu_capacity can be
+ * to run the sched_balance_domains for all idle cores and the cpu_capacity can be
  * updated during this sequence.
  */
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e377b675920a..330788b0c617 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -11685,7 +11685,7 @@ static inline bool update_newidle_cost(struct sched_domain *sd, u64 cost)
  *
  * Balancing parameters are set up in init_sched_domains.
  */
-static void rebalance_domains(struct rq *rq, enum cpu_idle_type idle)
+static void sched_balance_domains(struct rq *rq, enum cpu_idle_type idle)
 {
 	int continue_balancing = 1;
 	int cpu = rq->cpu;
@@ -12161,7 +12161,7 @@ static void _nohz_idle_balance(struct rq *this_rq, unsigned int flags)
 			rq_unlock_irqrestore(rq, &rf);
 
 			if (flags & NOHZ_BALANCE_KICK)
-				rebalance_domains(rq, CPU_IDLE);
+				sched_balance_domains(rq, CPU_IDLE);
 		}
 
 		if (time_after(next_balance, rq->next_balance)) {
@@ -12422,7 +12422,7 @@ static __latent_entropy void sched_balance_softirq(struct softirq_action *h)
 	/*
 	 * If this CPU has a pending NOHZ_BALANCE_KICK, then do the
 	 * balancing on behalf of the other idle CPUs whose ticks are
-	 * stopped. Do nohz_idle_balance *before* rebalance_domains to
+	 * stopped. Do nohz_idle_balance *before* sched_balance_domains to
 	 * give the idle CPUs a chance to load balance. Else we may
 	 * load balance only within the local sched_domain hierarchy
 	 * and abort nohz_idle_balance altogether if we pull some load.
@@ -12432,7 +12432,7 @@ static __latent_entropy void sched_balance_softirq(struct softirq_action *h)
 
 	/* normal load balance */
 	update_blocked_averages(this_rq->cpu);
-	rebalance_domains(this_rq, idle);
+	sched_balance_domains(this_rq, idle);
 }
 
 /*
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 5b0ddb0e6017..41024c1c49b4 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2904,7 +2904,7 @@ extern void cfs_bandwidth_usage_dec(void);
 #define NOHZ_NEWILB_KICK_BIT	2
 #define NOHZ_NEXT_KICK_BIT	3
 
-/* Run rebalance_domains() */
+/* Run sched_balance_domains() */
 #define NOHZ_BALANCE_KICK	BIT(NOHZ_BALANCE_KICK_BIT)
 /* Update blocked load */
 #define NOHZ_STATS_KICK		BIT(NOHZ_STATS_KICK_BIT)
-- 
2.40.1