[RFC PATCH v1 6/8] sched/sched.h: remove sd arch_scale_freq_capacity parameter

Juri Lelli
2017-07-05T09:00:37Z

sd parameter is never used in arch_scale_freq_capacity (and it's hard to
see where information coming from scheduling domains might help doing
frequency invariance scaling).

Remove it; also in anticipation of moving arch_scale_freq_capacity
outside CONFIG_SMP.

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/fair.c | 2 +-
kernel/sched/sched.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 008c514dc241..97bd5aae285d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2875,7 +2875,7 @@ accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
u32 contrib = (u32)delta; /* p == 0 -> delta < 1024 */
u64 periods;

- scale_freq = arch_scale_freq_capacity(NULL, cpu);
+ scale_freq = arch_scale_freq_capacity(cpu);
scale_cpu = arch_scale_cpu_capacity(NULL, cpu);

delta += sa->period_contrib;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 1be5dac728a4..ec5769288927 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1673,7 +1673,7 @@ extern void sched_avg_update(struct rq *rq);

#ifndef arch_scale_freq_capacity
static __always_inline
-unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
+unsigned long arch_scale_freq_capacity(int cpu)
{
return SCHED_CAPACITY_SCALE;
}
@@ -1692,7 +1692,7 @@ unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)

static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
{
- rq->rt_avg += rt_delta * arch_scale_freq_capacity(NULL, cpu_of(rq));
+ rq->rt_avg += rt_delta * arch_scale_freq_capacity(cpu_of(rq));
sched_avg_update(rq);
}
#else
--
2.11.0