sched/balancing: Rename run_rebalance_domains() => sched_balance_soft…

…irq() run_rebalance_domains() is a misnomer, as it doesn't only run rebalance_domains(), but since the introduction of the NOHZ code it also runs nohz_idle_balance(). Rename it to sched_balance_softirq(), reflecting its more generic purpose and that it's a softirq handler. Signed-off-by: Ingo Molnar <[email protected]> Reviewed-by: Valentin Schneider <[email protected]> Reviewed-by: Shrikanth Hegde <[email protected]> Link: https://lore.kernel.org/r/[email protected]
yanjiew1 · Mar 12, 2024 · 70a27d6 · 70a27d6
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commit 70a27d6
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Showing 3 changed files with 4 additions and 4 deletions.
diff --git 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, trigger_load_balance() is run periodically on each CPU
 through scheduler_tick(). It raises a softirq after the next regularly scheduled
 rebalancing event for the current runqueue has arrived. The actual load
-balancing workhorse, run_rebalance_domains()->rebalance_domains(), is then run
+balancing workhorse, sched_balance_softirq()->rebalance_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
@@ -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，trigger_load_balance()在每个CPU上通过scheduler_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run_rebalance_domains()->rebalance_domains()完成，在软中断上下文中执行
+的工作由sched_balance_softirq()->rebalance_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scheduler_tick()调用时是否空闲。函数会从

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
@@ -12415,7 +12415,7 @@ static int newidle_balance(struct rq *this_rq, struct rq_flags *rf)
  * - indirectly from a remote scheduler_tick() for NOHZ idle balancing
  *   through the SMP cross-call nohz_csd_func()
  */
-static __latent_entropy void run_rebalance_domains(struct softirq_action *h)
+static __latent_entropy void sched_balance_softirq(struct softirq_action *h)
 {
 	struct rq *this_rq = this_rq();
 	enum cpu_idle_type idle = this_rq->idle_balance;
@@ -13216,7 +13216,7 @@ __init void init_sched_fair_class(void)
 #endif
 	}
 
-	open_softirq(SCHED_SOFTIRQ, run_rebalance_domains);
+	open_softirq(SCHED_SOFTIRQ, sched_balance_softirq);
 
 #ifdef CONFIG_NO_HZ_COMMON
 	nohz.next_balance = jiffies;