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@kernel.org>
Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Link: https://lore.kernel.org/r/20240308111819.1101550-5-mingo@kernel.org
This commit is contained in:
Ingo Molnar 2024-03-08 12:18:10 +01:00
parent 983be0628c
commit 14ff4dbd34
5 changed files with 8 additions and 8 deletions

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@ -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

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@ -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

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@ -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.
*/

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@ -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);
}
/*

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@ -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)