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@@ -609,7 +609,9 @@ static void do_dbs_timer(struct work_struct *work)
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/* We want all CPUs to do sampling nearly on same jiffy */
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int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
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- delay -= jiffies % delay;
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+ if (num_online_cpus() > 1)
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+ delay -= jiffies % delay;
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+
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mutex_lock(&dbs_info->timer_mutex);
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/* Common NORMAL_SAMPLE setup */
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@@ -634,7 +636,9 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
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{
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/* We want all CPUs to do sampling nearly on same jiffy */
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int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
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- delay -= jiffies % delay;
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+
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+ if (num_online_cpus() > 1)
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+ delay -= jiffies % delay;
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dbs_info->sample_type = DBS_NORMAL_SAMPLE;
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INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer);
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