Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [PATCH 3/3] cpufreq: governor: Symmetrize cpu_dbs_info initialization and cleanup | Date | Sun, 07 Feb 2016 16:25:02 +0100 |
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From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Make the initialization of struct cpu_dbs_info objects in alloc_policy_dbs_info() and the code that cleans them up in free_policy_dbs_info() more symmetrical. In particular, set/clear the update_util.func field in those functions along with the policy_dbs field.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- drivers/cpufreq/cpufreq_governor.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-)
Index: linux-pm/drivers/cpufreq/cpufreq_governor.c =================================================================== --- linux-pm.orig/drivers/cpufreq/cpufreq_governor.c +++ linux-pm/drivers/cpufreq/cpufreq_governor.c @@ -303,14 +303,18 @@ static struct policy_dbs_info *alloc_pol if (!policy_dbs) return NULL; - /* Set policy_dbs for all CPUs, online+offline */ - for_each_cpu(j, policy->related_cpus) - gov->get_cpu_cdbs(j)->policy_dbs = policy_dbs; - mutex_init(&policy_dbs->timer_mutex); atomic_set(&policy_dbs->skip_work, 0); init_irq_work(&policy_dbs->irq_work, dbs_irq_work); INIT_WORK(&policy_dbs->work, dbs_work_handler); + + /* Set policy_dbs for all CPUs, online+offline */ + for_each_cpu(j, policy->related_cpus) { + struct cpu_dbs_info *j_cdbs = gov->get_cpu_cdbs(j); + + j_cdbs->policy_dbs = policy_dbs; + j_cdbs->update_util.func = dbs_update_util_handler; + } return policy_dbs; } @@ -323,9 +327,12 @@ static void free_policy_dbs_info(struct mutex_destroy(&policy_dbs->timer_mutex); - for_each_cpu(j, policy->cpus) - gov->get_cpu_cdbs(j)->policy_dbs = NULL; + for_each_cpu(j, policy->related_cpus) { + struct cpu_dbs_info *j_cdbs = gov->get_cpu_cdbs(j); + j_cdbs->policy_dbs = NULL; + j_cdbs->update_util.func = NULL; + } kfree(policy_dbs); } @@ -476,8 +483,6 @@ static int cpufreq_governor_start(struct if (ignore_nice) j_cdbs->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE]; - - j_cdbs->update_util.func = dbs_update_util_handler; } policy_dbs->policy = policy;
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