Commit 24e26f1e authored Nov 19, 2015 by Syed Rameez Mustafa

sched: Update min/max capacity for the CPUFREQ_CREATE_POLICY notifier

Following the change "57e29051 sched: Skip resetting HMP stats when
max frequencies remain unchanged" the scheduler fails to update
min/max capacities appropriately when CPUs are hot added after being
hot removed. Fix this problem by handling the CPUFREQ_CREATE_POLICY
notification and explicitly updating min/max capacities.

Change-Id: I5dadac3258e18897fa3d505cf128ebe24c091efa
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>

parent ec7db6c5

kernel/sched/core.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -2733,10 +2733,11 @@ static int cpufreq_notifier_policy(struct notifier_block *nb,
		/* Initialized to policy->max in case policy->related_cpus is empty! */
		unsigned int orig_max_freq = policy->max;

		if (val != CPUFREQ_NOTIFY && val != CPUFREQ_REMOVE_POLICY)
		if (val != CPUFREQ_NOTIFY && val != CPUFREQ_REMOVE_POLICY &&
		val != CPUFREQ_CREATE_POLICY)
		return 0;

		if (val == CPUFREQ_REMOVE_POLICY) {
		if (val == CPUFREQ_REMOVE_POLICY \|\| val == CPUFREQ_CREATE_POLICY) {
		update_min_max_capacity();
		return 0;
		}