From: Ingo Molnar <mingo@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Shrikanth Hegde <sshegde@linux.ibm.com>,
Valentin Schneider <vschneid@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>
Subject: [PATCH 03/13] sched/balancing: Rename trigger_load_balance() => sched_balance_trigger()
Date: Fri, 8 Mar 2024 12:18:09 +0100 [thread overview]
Message-ID: <20240308111819.1101550-4-mingo@kernel.org> (raw)
In-Reply-To: <20240308111819.1101550-1-mingo@kernel.org>
Standardize scheduler load-balancing function names on the
sched_balance_() prefix.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
---
Documentation/scheduler/sched-domains.rst | 2 +-
Documentation/translations/zh_CN/scheduler/sched-domains.rst | 2 +-
kernel/sched/core.c | 2 +-
kernel/sched/fair.c | 2 +-
kernel/sched/sched.h | 2 +-
5 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/Documentation/scheduler/sched-domains.rst b/Documentation/scheduler/sched-domains.rst
index 541d6c617971..c7ea05f4107b 100644
--- a/Documentation/scheduler/sched-domains.rst
+++ b/Documentation/scheduler/sched-domains.rst
@@ -31,7 +31,7 @@ is treated as one entity. The load of a group is defined as the sum of the
load of each of its member CPUs, and only when the load of a group becomes
out of balance are tasks moved between groups.
-In kernel/sched/core.c, trigger_load_balance() is run periodically on each CPU
+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
diff --git a/Documentation/translations/zh_CN/scheduler/sched-domains.rst b/Documentation/translations/zh_CN/scheduler/sched-domains.rst
index fa0c0bcc6ba5..1a8587a971f9 100644
--- a/Documentation/translations/zh_CN/scheduler/sched-domains.rst
+++ b/Documentation/translations/zh_CN/scheduler/sched-domains.rst
@@ -34,7 +34,7 @@ CPU共享。任意两个组的CPU掩码的交集不一定为空,如果是这
调度域中的负载均衡发生在调度组中。也就是说,每个组被视为一个实体。组的负载被定义为它
管辖的每个CPU的负载之和。仅当组的负载不均衡后,任务才在组之间发生迁移。
-在kernel/sched/core.c中,trigger_load_balance()在每个CPU上通过sched_tick()
+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
(SCHED_SOFTIRQ)。
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 3affa9a6b249..d56ebe8230bc 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5689,7 +5689,7 @@ void sched_tick(void)
#ifdef CONFIG_SMP
rq->idle_balance = idle_cpu(cpu);
- trigger_load_balance(rq);
+ sched_balance_trigger(rq);
#endif
}
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 953f39deb68e..e377b675920a 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -12438,7 +12438,7 @@ static __latent_entropy void sched_balance_softirq(struct softirq_action *h)
/*
* Trigger the SCHED_SOFTIRQ if it is time to do periodic load balancing.
*/
-void trigger_load_balance(struct rq *rq)
+void sched_balance_trigger(struct rq *rq)
{
/*
* Don't need to rebalance while attached to NULL domain or
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index d2242679239e..5b0ddb0e6017 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2397,7 +2397,7 @@ extern struct task_struct *pick_next_task_idle(struct rq *rq);
extern void update_group_capacity(struct sched_domain *sd, int cpu);
-extern void trigger_load_balance(struct rq *rq);
+extern void sched_balance_trigger(struct rq *rq);
extern void set_cpus_allowed_common(struct task_struct *p, struct affinity_context *ctx);
--
2.40.1
next prev parent reply other threads:[~2024-03-08 11:18 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-08 11:18 [PATCH -v1 00/13] sched/balancing: Standardize the naming of scheduler load-balancing functions Ingo Molnar
2024-03-08 11:18 ` [PATCH 01/13] sched/balancing: Rename run_rebalance_domains() => sched_balance_softirq() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 02/13] sched/balancing: Rename scheduler_tick() => sched_tick() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` Ingo Molnar [this message]
2024-03-12 12:00 ` [tip: sched/core] sched/balancing: Rename trigger_load_balance() => sched_balance_trigger() tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 04/13] sched/balancing: Rename rebalance_domains() => sched_balance_domains() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 05/13] sched/balancing: Rename load_balance() => sched_balance_rq() Ingo Molnar
2024-03-11 8:17 ` Shrikanth Hegde
2024-03-12 10:27 ` Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 06/13] sched/balancing: Rename find_busiest_queue() => find_src_rq() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] sched/balancing: Rename find_busiest_queue() => sched_balance_find_src_rq() tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 07/13] sched/balancing: Rename find_src_rq() " Ingo Molnar
2024-03-08 13:51 ` Vincent Guittot
2024-03-08 17:49 ` Ingo Molnar
2024-03-08 11:18 ` [PATCH 08/13] sched/balancing: Rename find_busiest_group() => sched_balance_find_src_group() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 09/13] sched/balancing: Rename update_blocked_averages() => sched_balance_update_blocked_averages() Ingo Molnar
2024-03-11 6:42 ` Honglei Wang
2024-03-12 10:36 ` Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 10/13] sched/balancing: Rename newidle_balance() => sched_balance_newidle() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 11/13] sched/balancing: Rename find_idlest_group_cpu() => sched_balance_find_dst_group_cpu() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 12/13] sched/balancing: Rename find_idlest_group() => sched_balance_find_dst_group() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:18 ` [PATCH 13/13] sched/balancing: Rename find_idlest_cpu() => sched_balance_find_dst_cpu() Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 11:25 ` [PATCH -v1 00/13] sched/balancing: Standardize the naming of scheduler load-balancing functions Ingo Molnar
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