From mboxrd@z Thu Jan 1 00:00:00 1970 From: juri.lelli@arm.com (Juri Lelli) Date: Fri, 18 Mar 2016 14:24:07 +0000 Subject: [PATCH v4 1/8] ARM: initialize cpu_scale to its default In-Reply-To: <1458311054-13524-1-git-send-email-juri.lelli@arm.com> References: <1458311054-13524-1-git-send-email-juri.lelli@arm.com> Message-ID: <1458311054-13524-2-git-send-email-juri.lelli@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Acked-by: Vincent Guittot Signed-off-by: Juri Lelli --- Applied: http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=8497/1 --- 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(); -- 2.7.0