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sched/rt: Make (do_)balance_runtime() return void

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The return value of (do_)balance_runtime() is not consumed by anybody.
Make them return void.

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1441188096-23021-5-git-send-email-juri.lelli@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Juri Lelli 2015-09-02 11:01:36 +01:00 committed by Ingo Molnar
parent f52405757e
commit 269b26a5ef
1 changed files with 6 additions and 16 deletions
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22
kernel/sched/rt.c
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@ -635,11 +635,11 @@ bool sched_rt_bandwidth_account(struct rt_rq *rt_rq)
/*
* We ran out of runtime, see if we can borrow some from our neighbours.
*/
static int do_balance_runtime(struct rt_rq *rt_rq)
static void do_balance_runtime(struct rt_rq *rt_rq)
{
struct rt_bandwidth *rt_b = sched_rt_bandwidth(rt_rq);
struct root_domain *rd = rq_of_rt_rq(rt_rq)->rd;
int i, weight, more = 0;
int i, weight;
u64 rt_period;
weight = cpumask_weight(rd->span);
@ -673,7 +673,6 @@ static int do_balance_runtime(struct rt_rq *rt_rq)
diff = rt_period - rt_rq->rt_runtime;
iter->rt_runtime -= diff;
rt_rq->rt_runtime += diff;
more = 1;
if (rt_rq->rt_runtime == rt_period) {
raw_spin_unlock(&iter->rt_runtime_lock);
break;
@ -683,8 +682,6 @@ static int do_balance_runtime(struct rt_rq *rt_rq)
raw_spin_unlock(&iter->rt_runtime_lock);
}
raw_spin_unlock(&rt_b->rt_runtime_lock);
return more;
}
/*
@ -796,26 +793,19 @@ static void __enable_runtime(struct rq *rq)
}
}
static int balance_runtime(struct rt_rq *rt_rq)
static void balance_runtime(struct rt_rq *rt_rq)
{
int more = 0;
if (!sched_feat(RT_RUNTIME_SHARE))
return more;
return;
if (rt_rq->rt_time > rt_rq->rt_runtime) {
raw_spin_unlock(&rt_rq->rt_runtime_lock);
more = do_balance_runtime(rt_rq);
do_balance_runtime(rt_rq);
raw_spin_lock(&rt_rq->rt_runtime_lock);
}
return more;
}
#else /* !CONFIG_SMP */
static inline int balance_runtime(struct rt_rq *rt_rq)
{
return 0;
}
static inline void balance_runtime(struct rt_rq *rt_rq) {}
#endif /* CONFIG_SMP */
static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)