From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- drivers/cpufreq/cpufreq_powersave.c | 39 +++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 drivers/cpufreq/cpufreq_powersave.c (limited to 'drivers/cpufreq/cpufreq_powersave.c') diff --git a/drivers/cpufreq/cpufreq_powersave.c b/drivers/cpufreq/cpufreq_powersave.c new file mode 100644 index 000000000..8d830d860 --- /dev/null +++ b/drivers/cpufreq/cpufreq_powersave.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/drivers/cpufreq/cpufreq_powersave.c + * + * Copyright (C) 2002 - 2003 Dominik Brodowski + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include + +static void cpufreq_gov_powersave_limits(struct cpufreq_policy *policy) +{ + pr_debug("setting to %u kHz\n", policy->min); + __cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L); +} + +static struct cpufreq_governor cpufreq_gov_powersave = { + .name = "powersave", + .limits = cpufreq_gov_powersave_limits, + .owner = THIS_MODULE, + .flags = CPUFREQ_GOV_STRICT_TARGET, +}; + +MODULE_AUTHOR("Dominik Brodowski "); +MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'"); +MODULE_LICENSE("GPL"); + +#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE +struct cpufreq_governor *cpufreq_default_governor(void) +{ + return &cpufreq_gov_powersave; +} +#endif + +cpufreq_governor_init(cpufreq_gov_powersave); +cpufreq_governor_exit(cpufreq_gov_powersave); -- cgit v1.3.1