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sched: cleanup inc/dec_rt_tasks 

Move some common definitions up to the function prologe to simplify the
body logic.

Signed-off-by: Gregory Haskins <ghaskins@novell.com>
This commit is contained in:
Gregory Haskins 2008-12-29 09:39:49 -05:00
parent 6092848a2a
commit 4d9842776a
1 changed files with 16 additions and 24 deletions
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40
kernel/sched_rt.c
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@ -550,30 +550,28 @@ static void update_curr_rt(struct rq *rq)
static inline
void inc_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
{
WARN_ON(!rt_prio(rt_se_prio(rt_se)));
int prio = rt_se_prio(rt_se);
#ifdef CONFIG_SMP
struct rq *rq = rq_of_rt_rq(rt_rq);
#endif
WARN_ON(!rt_prio(prio));
rt_rq->rt_nr_running++;
#if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
if (rt_se_prio(rt_se) < rt_rq->highest_prio) {
#ifdef CONFIG_SMP
struct rq *rq = rq_of_rt_rq(rt_rq);
#endif
if (prio < rt_rq->highest_prio) {
rt_rq->highest_prio = rt_se_prio(rt_se);
rt_rq->highest_prio = prio;
#ifdef CONFIG_SMP
if (rq->online)
cpupri_set(&rq->rd->cpupri, rq->cpu,
rt_se_prio(rt_se));
cpupri_set(&rq->rd->cpupri, rq->cpu, prio);
#endif
}
#endif
#ifdef CONFIG_SMP
if (rt_se->nr_cpus_allowed > 1) {
struct rq *rq = rq_of_rt_rq(rt_rq);
if (rt_se->nr_cpus_allowed > 1)
rq->rt.rt_nr_migratory++;
}
update_rt_migration(rq_of_rt_rq(rt_rq));
update_rt_migration(rq);
#endif
#ifdef CONFIG_RT_GROUP_SCHED
if (rt_se_boosted(rt_se))
@ -590,6 +588,7 @@ static inline
void dec_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
{
#ifdef CONFIG_SMP
struct rq *rq = rq_of_rt_rq(rt_rq);
int highest_prio = rt_rq->highest_prio;
#endif
@ -611,20 +610,13 @@ void dec_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
rt_rq->highest_prio = MAX_RT_PRIO;
#endif
#ifdef CONFIG_SMP
if (rt_se->nr_cpus_allowed > 1) {
struct rq *rq = rq_of_rt_rq(rt_rq);
if (rt_se->nr_cpus_allowed > 1)
rq->rt.rt_nr_migratory--;
}
if (rt_rq->highest_prio != highest_prio) {
struct rq *rq = rq_of_rt_rq(rt_rq);
if (rq->online && rt_rq->highest_prio != highest_prio)
cpupri_set(&rq->rd->cpupri, rq->cpu, rt_rq->highest_prio);
if (rq->online)
cpupri_set(&rq->rd->cpupri, rq->cpu,
rt_rq->highest_prio);
}
update_rt_migration(rq_of_rt_rq(rt_rq));
update_rt_migration(rq);
#endif /* CONFIG_SMP */
#ifdef CONFIG_RT_GROUP_SCHED
if (rt_se_boosted(rt_se))