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 07/10] sched/balancing: Fix comments (trying to) refer to NOHZ_BALANCE_KICK
Date: Fri, 8 Mar 2024 11:58:58 +0100 [thread overview]
Message-ID: <20240308105901.1096078-8-mingo@kernel.org> (raw)
In-Reply-To: <20240308105901.1096078-1-mingo@kernel.org>
Fix two typos:
- There's no such thing as 'nohz_balancing_kick', the
flag is named 'BALANCE' and is capitalized: NOHZ_BALANCE_KICK.
- Likewise there's no such thing as a 'pending nohz_balance_kick'
either, the NOHZ_BALANCE_KICK flag is all upper-case.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
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: Vincent Guittot <vincent.guittot@linaro.org>
---
kernel/sched/fair.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 84d4791cf628..f3c03c6db3c8 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -12409,15 +12409,16 @@ static int newidle_balance(struct rq *this_rq, struct rq_flags *rf)
}
/*
- * run_rebalance_domains is triggered when needed from the scheduler tick.
- * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
+ * This softirq may be triggered from the scheduler tick, or by
+ * any of the flags in NOHZ_KICK_MASK: NOHZ_BALANCE_KICK,
+ * NOHZ_STATS_KICK or NOHZ_NEXT_KICK.
*/
static __latent_entropy void run_rebalance_domains(struct softirq_action *h)
{
struct rq *this_rq = this_rq();
enum cpu_idle_type idle = this_rq->idle_balance;
/*
- * If this CPU has a pending nohz_balance_kick, then do the
+ * 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
* give the idle CPUs a chance to load balance. Else we may
--
2.40.1
next prev parent reply other threads:[~2024-03-08 10:59 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-08 10:58 [PATCH -v4 00/10] sched/balancing: Misc updates & cleanups Ingo Molnar
2024-03-08 10:58 ` [PATCH 01/10] sched/balancing: Switch the 'DEFINE_SPINLOCK(balancing)' spinlock into an 'atomic_t sched_balance_running' flag Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-15 9:25 ` [PATCH 01/10] " Shrikanth Hegde
2024-03-08 10:58 ` [PATCH 02/10] sched/balancing: Remove reliance on 'enum cpu_idle_type' ordering when iterating [CPU_MAX_IDLE_TYPES] arrays in show_schedstat() Ingo Molnar
2024-03-08 13:26 ` Vincent Guittot
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Shrikanth Hegde
2024-03-08 10:58 ` [PATCH 03/10] sched/balancing: Change 'enum cpu_idle_type' to have more natural definitions Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 10:58 ` [PATCH 04/10] sched/debug: Increase SCHEDSTAT_VERSION to 16 Ingo Molnar
2024-03-08 16:40 ` Shrikanth Hegde
2024-03-12 10:01 ` Ingo Molnar
2024-03-14 5:21 ` Gautham R. Shenoy
2024-03-14 6:04 ` Swapnil Sapkal
2024-03-15 4:37 ` Shrikanth Hegde
2024-03-15 9:06 ` Swapnil Sapkal
2024-03-15 9:20 ` Shrikanth Hegde
2024-03-15 14:03 ` Swapnil Sapkal
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 10:58 ` [PATCH 05/10] sched/debug: Allow CONFIG_SCHEDSTATS even on !KERNEL_DEBUG kernels Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 10:58 ` [PATCH 06/10] sched/balancing: Change comment formatting to not overlap Git conflict marker lines Ingo Molnar
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 10:58 ` Ingo Molnar [this message]
2024-03-08 12:03 ` [PATCH 07/10] sched/balancing: Fix comments (trying to) refer to NOHZ_BALANCE_KICK Vincent Guittot
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 10:58 ` [PATCH 08/10] sched/balancing: Update run_rebalance_domains() comments Ingo Molnar
2024-03-08 12:02 ` Vincent Guittot
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 10:59 ` [PATCH 09/10] sched/balancing: Vertically align the comments of 'struct sg_lb_stats' and 'struct sd_lb_stats' Ingo Molnar
2024-03-08 12:01 ` Vincent Guittot
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
2024-03-08 10:59 ` [PATCH 10/10] sched/balancing: Update comments in " Ingo Molnar
2024-03-08 12:01 ` Vincent Guittot
2024-03-12 12:00 ` [tip: sched/core] " tip-bot2 for Ingo Molnar
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