[RFC PATCH v2 1/4] ARM: initialize cpu_scale to its default
From: Juri Lelli <hidden>
Date: 2016-01-08 14:11:21
Also in:
linux-pm, lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
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. Cc: Russell King <redacted> Acked-by: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Juri Lelli <redacted> --- arch/arm/kernel/topology.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index 08b7847..ec279d1 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c@@ -40,7 +40,7 @@ * to run the rebalance_domains for all idle cores and the cpu_capacity can be * 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) {
@@ -306,8 +306,6 @@ void __init init_cpu_topology(void) cpu_topo->socket_id = -1; cpumask_clear(&cpu_topo->core_sibling); cpumask_clear(&cpu_topo->thread_sibling); - - set_capacity_scale(cpu, SCHED_CAPACITY_SCALE); } smp_wmb();
--
2.2.2