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author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2008-06-19 14:22:26 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-06-20 10:26:00 +0200 |
commit | eff6549b957d15d1ad168d90b8c1eb643b9c163f (patch) | |
tree | 016e025635dabb070edf1f48fe1cee5308e18fd4 /kernel/sched_rt.c | |
parent | b79f3833d81d54fc71d98c8064dc45f33a755a8a (diff) | |
download | linux-eff6549b957d15d1ad168d90b8c1eb643b9c163f.tar.gz linux-eff6549b957d15d1ad168d90b8c1eb643b9c163f.tar.bz2 linux-eff6549b957d15d1ad168d90b8c1eb643b9c163f.zip |
sched: rt: move some code around
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Daniel K." <dk@uw.no>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_rt.c')
-rw-r--r-- | kernel/sched_rt.c | 119 |
1 files changed, 57 insertions, 62 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 87b2e3bf9472..61d52112289c 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -229,68 +229,6 @@ static inline struct rt_bandwidth *sched_rt_bandwidth(struct rt_rq *rt_rq) #endif #ifdef CONFIG_SMP -static int do_balance_runtime(struct rt_rq *rt_rq); - -static int balance_runtime(struct rt_rq *rt_rq) -{ - int more = 0; - - if (rt_rq->rt_time > rt_rq->rt_runtime) { - spin_unlock(&rt_rq->rt_runtime_lock); - more = do_balance_runtime(rt_rq); - spin_lock(&rt_rq->rt_runtime_lock); - } - - return more; -} -#else -static inline int balance_runtime(struct rt_rq *rt_rq) -{ - return 0; -} -#endif - -static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun) -{ - int i, idle = 1; - cpumask_t span; - - if (rt_b->rt_runtime == RUNTIME_INF) - return 1; - - span = sched_rt_period_mask(); - for_each_cpu_mask(i, span) { - int enqueue = 0; - struct rt_rq *rt_rq = sched_rt_period_rt_rq(rt_b, i); - struct rq *rq = rq_of_rt_rq(rt_rq); - - spin_lock(&rq->lock); - if (rt_rq->rt_time) { - u64 runtime; - - spin_lock(&rt_rq->rt_runtime_lock); - if (rt_rq->rt_throttled) - balance_runtime(rt_rq); - runtime = rt_rq->rt_runtime; - rt_rq->rt_time -= min(rt_rq->rt_time, overrun*runtime); - if (rt_rq->rt_throttled && rt_rq->rt_time < runtime) { - rt_rq->rt_throttled = 0; - enqueue = 1; - } - if (rt_rq->rt_time || rt_rq->rt_nr_running) - idle = 0; - spin_unlock(&rt_rq->rt_runtime_lock); - } - - if (enqueue) - sched_rt_rq_enqueue(rt_rq); - spin_unlock(&rq->lock); - } - - return idle; -} - -#ifdef CONFIG_SMP static int do_balance_runtime(struct rt_rq *rt_rq) { struct rt_bandwidth *rt_b = sched_rt_bandwidth(rt_rq); @@ -425,8 +363,65 @@ static void enable_runtime(struct rq *rq) spin_unlock_irqrestore(&rq->lock, flags); } +static int balance_runtime(struct rt_rq *rt_rq) +{ + int more = 0; + + if (rt_rq->rt_time > rt_rq->rt_runtime) { + spin_unlock(&rt_rq->rt_runtime_lock); + more = do_balance_runtime(rt_rq); + spin_lock(&rt_rq->rt_runtime_lock); + } + + return more; +} +#else +static inline int balance_runtime(struct rt_rq *rt_rq) +{ + return 0; +} #endif +static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun) +{ + int i, idle = 1; + cpumask_t span; + + if (rt_b->rt_runtime == RUNTIME_INF) + return 1; + + span = sched_rt_period_mask(); + for_each_cpu_mask(i, span) { + int enqueue = 0; + struct rt_rq *rt_rq = sched_rt_period_rt_rq(rt_b, i); + struct rq *rq = rq_of_rt_rq(rt_rq); + + spin_lock(&rq->lock); + if (rt_rq->rt_time) { + u64 runtime; + + spin_lock(&rt_rq->rt_runtime_lock); + if (rt_rq->rt_throttled) + balance_runtime(rt_rq); + runtime = rt_rq->rt_runtime; + rt_rq->rt_time -= min(rt_rq->rt_time, overrun*runtime); + if (rt_rq->rt_throttled && rt_rq->rt_time < runtime) { + rt_rq->rt_throttled = 0; + enqueue = 1; + } + if (rt_rq->rt_time || rt_rq->rt_nr_running) + idle = 0; + spin_unlock(&rt_rq->rt_runtime_lock); + } + + if (enqueue) + sched_rt_rq_enqueue(rt_rq); + spin_unlock(&rq->lock); + } + + return idle; +} + static inline int rt_se_prio(struct sched_rt_entity *rt_se) { #ifdef CONFIG_RT_GROUP_SCHED |