Commit-ID: 4a725627f21df6b280a19f50bc849daaab3b1544
Gitweb: http://git.kernel.org/tip/4a725627f21df6b280a19f50bc849daaab3b1544
Author: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
AuthorDate: Mon, 6 Jan 2014 12:34:39 +0100
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 13 Jan 2014 13:47:27 +0100
sched: Reduce nohz_kick_needed() parameters
The cpu information is already stored in the struct rq, so no need to pass it
as parameter to the nohz_kick_needed function.
The caller of this function just called idle_cpu() before to fill the
rq->idle_balance field.
Use rq->cpu and rq->idle_balance.
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1389008085-9069-3-git-send-email-daniel.lezcano@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/sched/fair.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b35d322..c47b1ce 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6788,14 +6788,14 @@ end:
* - For SD_ASYM_PACKING, if the lower numbered cpu's in the scheduler
* domain span are idle.
*/
-static inline int nohz_kick_needed(struct rq *rq, int cpu)
+static inline int nohz_kick_needed(struct rq *rq)
{
unsigned long now = jiffies;
struct sched_domain *sd;
struct sched_group_power *sgp;
- int nr_busy;
+ int nr_busy, cpu = rq->cpu;
- if (unlikely(idle_cpu(cpu)))
+ if (unlikely(rq->idle_balance))
return 0;
/*
@@ -6885,7 +6885,7 @@ void trigger_load_balance(struct rq *rq)
likely(!on_null_domain(cpu)))
raise_softirq(SCHED_SOFTIRQ);
#ifdef CONFIG_NO_HZ_COMMON
- if (nohz_kick_needed(rq, cpu) && likely(!on_null_domain(cpu)))
+ if (nohz_kick_needed(rq) && likely(!on_null_domain(cpu)))
nohz_balancer_kick(cpu);
#endif
}
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