cpufreq: interactive: don't handle transition notification if not enabled (67dd6bf3) · Commits · e / devices / android_kernel_xiaomi_markw

If multiple governors are in use then avoid processing frequency transition notifications for CPUs on which the interactive governor is not enabled. Change-Id: Ibd75255b921d887501a64774a8c4f62302f2d4e4 Reported-by:

Francisco Franco <francisco.franco@cloudcar.com> Signed-off-by:

Todd Poynor <toddpoynor@google.com>

drivers/cpufreq/cpufreq_interactive.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -552,6 +552,12 @@ static int cpufreq_interactive_notifier(

		if (val == CPUFREQ_POSTCHANGE) {
		pcpu = &per_cpu(cpuinfo, freq->cpu);
		if (!down_read_trylock(&pcpu->enable_sem))
		return 0;
		if (!pcpu->governor_enabled) {
		up_read(&pcpu->enable_sem);
		return 0;
		}

		for_each_cpu(cpu, pcpu->policy->cpus) {
		struct cpufreq_interactive_cpuinfo *pjcpu =
		@@ -560,8 +566,9 @@ static int cpufreq_interactive_notifier(
		update_load(cpu);
		spin_unlock(&pjcpu->load_lock);
		}
		}

		up_read(&pcpu->enable_sem);
		}
		return 0;
		}