[RFCv5 PATCH 45/46] sched/cpufreq_sched: modify pcpu_capacity handling

Morten Rasmussen
2015-07-07T18:50:37Z

From: Juri Lelli <juri.lelli@arm.com>

Use the cpu argument of cpufreq_sched_set_cap() to handle per_cpu writes,
as the thing can be called remotely (e.g., from load balacing code).

cc: Ingo Molnar <mingo@redhat.com>
cc: Peter Zijlstra <peterz@infradead.org>

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
---
kernel/sched/cpufreq_sched.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/cpufreq_sched.c b/kernel/sched/cpufreq_sched.c
index 06ff183..b81ac779 100644
--- a/kernel/sched/cpufreq_sched.c
+++ b/kernel/sched/cpufreq_sched.c
@@ -151,7 +151,7 @@ void cpufreq_sched_set_cap(int cpu, unsigned long capacity)
unsigned long capacity_max = 0;

/* update per-cpu capacity request */
- __this_cpu_write(pcpu_capacity, capacity);
+ per_cpu(pcpu_capacity, cpu) = capacity;

policy = cpufreq_cpu_get(cpu);
if (IS_ERR_OR_NULL(policy)) {
--
1.9.1