sched: Pass 'struct rq' to on_null_domain()
The on_null_domain() function is getting the cpu to retrieve the struct rq
associated with it.
Pass 'struct rq' directly to the function as the caller already has the info.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1389008085-9069-4-git-send-email-daniel.lezcano@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c47b1ce..fc0afc5 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6868,9 +6868,9 @@
nohz_idle_balance(this_cpu, idle);
}
-static inline int on_null_domain(int cpu)
+static inline int on_null_domain(struct rq *rq)
{
- return !rcu_dereference_sched(cpu_rq(cpu)->sd);
+ return !rcu_dereference_sched(rq->sd);
}
/*
@@ -6882,10 +6882,10 @@
/* Don't need to rebalance while attached to NULL domain */
if (time_after_eq(jiffies, rq->next_balance) &&
- likely(!on_null_domain(cpu)))
+ likely(!on_null_domain(rq)))
raise_softirq(SCHED_SOFTIRQ);
#ifdef CONFIG_NO_HZ_COMMON
- if (nohz_kick_needed(rq) && likely(!on_null_domain(cpu)))
+ if (nohz_kick_needed(rq) && likely(!on_null_domain(rq)))
nohz_balancer_kick(cpu);
#endif
}