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sched: Remove frequency scaling from cpu_capacity

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Now that arch_scale_cpu_capacity has been introduced to scale the original
capacity, the arch_scale_freq_capacity is no longer used (it was
previously used by ARM arch).

Remove arch_scale_freq_capacity from the computation of cpu_capacity.
The frequency invariance will be handled in the load tracking and not in
the CPU capacity. arch_scale_freq_capacity will be revisited for scaling
load with the current frequency of the CPUs in a later patch.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Morten.Rasmussen@arm.com
Cc: dietmar.eggemann@arm.com
Cc: efault@gmx.de
Cc: kamalesh@linux.vnet.ibm.com
Cc: linaro-kernel@lists.linaro.org
Cc: nicolas.pitre@linaro.org
Cc: preeti@linux.vnet.ibm.com
Cc: riel@redhat.com
Link: http://lkml.kernel.org/r/1425052454-25797-4-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Vincent Guittot 2015-02-27 16:54:06 +01:00 committed by Ingo Molnar
parent 21f4486630
commit a8faa8f55d
1 changed files with 0 additions and 7 deletions
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7
kernel/sched/fair.c
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@ -6042,13 +6042,6 @@ static void update_cpu_capacity(struct sched_domain *sd, int cpu)
sdg->sgc->capacity_orig = capacity;
if (sched_feat(ARCH_CAPACITY))
capacity *= arch_scale_freq_capacity(sd, cpu);
else
capacity *= default_scale_capacity(sd, cpu);
capacity >>= SCHED_CAPACITY_SHIFT;
capacity *= scale_rt_capacity(cpu);
capacity >>= SCHED_CAPACITY_SHIFT;