diff options
| -rw-r--r-- | kernel/sched/cpudeadline.c | 26 | ||||
| -rw-r--r-- | kernel/sched/deadline.c | 6 |
2 files changed, 16 insertions, 16 deletions
diff --git a/kernel/sched/cpudeadline.c b/kernel/sched/cpudeadline.c index bdf448b6556f..8d9562d890d3 100644 --- a/kernel/sched/cpudeadline.c +++ b/kernel/sched/cpudeadline.c @@ -119,29 +119,29 @@ static inline int cpudl_maximum(struct cpudl *cp) * @p: the task * @later_mask: a mask to fill in with the selected CPUs (or NULL) * - * Returns: int - best CPU (heap maximum if suitable) + * Returns: int - CPUs were found */ int cpudl_find(struct cpudl *cp, struct task_struct *p, struct cpumask *later_mask) { - int best_cpu = -1; const struct sched_dl_entity *dl_se = &p->dl; if (later_mask && cpumask_and(later_mask, cp->free_cpus, &p->cpus_allowed)) { - best_cpu = cpumask_any(later_mask); - goto out; - } else if (cpumask_test_cpu(cpudl_maximum(cp), &p->cpus_allowed) && - dl_time_before(dl_se->deadline, cp->elements[0].dl)) { - best_cpu = cpudl_maximum(cp); - if (later_mask) - cpumask_set_cpu(best_cpu, later_mask); - } + return 1; + } else { + int best_cpu = cpudl_maximum(cp); + WARN_ON(best_cpu != -1 && !cpu_present(best_cpu)); -out: - WARN_ON(best_cpu != -1 && !cpu_present(best_cpu)); + if (cpumask_test_cpu(best_cpu, &p->cpus_allowed) && + dl_time_before(dl_se->deadline, cp->elements[0].dl)) { + if (later_mask) + cpumask_set_cpu(best_cpu, later_mask); - return best_cpu; + return 1; + } + } + return 0; } /* diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index ac07d7c3a978..d05bd9457a40 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1594,7 +1594,7 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p) * let's hope p can move out. */ if (rq->curr->nr_cpus_allowed == 1 || - cpudl_find(&rq->rd->cpudl, rq->curr, NULL) == -1) + !cpudl_find(&rq->rd->cpudl, rq->curr, NULL)) return; /* @@ -1602,7 +1602,7 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p) * see if it is pushed or pulled somewhere else. */ if (p->nr_cpus_allowed != 1 && - cpudl_find(&rq->rd->cpudl, p, NULL) != -1) + cpudl_find(&rq->rd->cpudl, p, NULL)) return; resched_curr(rq); @@ -1811,7 +1811,7 @@ static int find_later_rq(struct task_struct *task) * We have to consider system topology and task affinity * first, then we can look for a suitable cpu. */ - if (cpudl_find(&task_rq(task)->rd->cpudl, task, later_mask) == -1) + if (!cpudl_find(&task_rq(task)->rd->cpudl, task, later_mask)) return -1; /* |