diff options
Diffstat (limited to 'kernel/sched/rt.c')
| -rw-r--r-- | kernel/sched/rt.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index d2ea59364..8ec86abe0 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -64,7 +64,7 @@ static void start_rt_bandwidth(struct rt_bandwidth *rt_b) raw_spin_unlock(&rt_b->rt_runtime_lock); } -#ifdef CONFIG_SMP +#if defined(CONFIG_SMP) && defined(HAVE_RT_PUSH_IPI) static void push_irq_work_func(struct irq_work *work); #endif @@ -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 @@ next: 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) |