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ARM: 8497/1: initialize cpu_scale to its default

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Instead of looping through all cpus calling set_capacity_scale, we can
initialise cpu_scale per-cpu variables to SCHED_CAPACITY_SCALE with their
definition.

Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Juri Lelli 2016-01-07 16:27:33 +01:00 committed by Russell King
parent f19768ce0e
commit d78e13a8a8
1 changed files with 1 additions and 3 deletions
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4
arch/arm/kernel/topology.c
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@ -40,7 +40,7 @@
* to run the rebalance_domains for all idle cores and the cpu_capacity can be * to run the rebalance_domains for all idle cores and the cpu_capacity can be
* updated during this sequence. * updated during this sequence.
*/ */
static DEFINE_PER_CPU(unsigned long, cpu_scale); static DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu) unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
{ {
@ -306,8 +306,6 @@ void __init init_cpu_topology(void)
cpu_topo->socket_id = -1; cpu_topo->socket_id = -1;
cpumask_clear(&cpu_topo->core_sibling); cpumask_clear(&cpu_topo->core_sibling);
cpumask_clear(&cpu_topo->thread_sibling); cpumask_clear(&cpu_topo->thread_sibling);
set_capacity_scale(cpu, SCHED_CAPACITY_SCALE);
} }
smp_wmb(); smp_wmb();