[RFC,v2,3/4] sched: expose capacity_of in sched.h

Commit Message

Mike Turquette May 12, 2015, 2:13 a.m. UTC

capacity_of is of use to a cpu frequency scaling policy based on cfs
load tracking and cpu capacity utilization metrics. Expose this call in
sched.h so it can be used in such a policy.

Signed-off-by: Michael Turquette <[e-mail]>
---
Changes in v2:
	Do not expose get_cpu_usage or capacity_orig_of in sched.h
	Expose capacity_of instead

 kernel/sched/fair.c  | 5 -----
 kernel/sched/sched.h | 5 +++++
 2 files changed, 5 insertions(+), 5 deletions(-)

Patch

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 75aec8d..d27ded9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4361,11 +4361,6 @@  static unsigned long target_load(int cpu, int type)
 	return max(rq->cpu_load[type-1], total);
 }
 
-static unsigned long capacity_of(int cpu)
-{
-	return cpu_rq(cpu)->cpu_capacity;
-}
-
 static unsigned long capacity_orig_of(int cpu)
 {
 	return cpu_rq(cpu)->cpu_capacity_orig;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e0e1299..4925bc4 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1396,6 +1396,11 @@  unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
 }
 #endif
 
+static inline unsigned long capacity_of(int cpu)
+{
+	return cpu_rq(cpu)->cpu_capacity;
+}
+
 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));