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-rw-r--r--kernel/sched/core.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c1b3d7e04f0f..e9212eb354b8 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3172,15 +3172,23 @@ static void __setscheduler(struct rq *rq, struct task_struct *p,
{
int policy = attr->sched_policy;
+ if (policy == -1) /* setparam */
+ policy = p->policy;
+
p->policy = policy;
if (dl_policy(policy))
__setparam_dl(p, attr);
- else if (rt_policy(policy))
- p->rt_priority = attr->sched_priority;
- else
+ else if (fair_policy(policy))
p->static_prio = NICE_TO_PRIO(attr->sched_nice);
+ /*
+ * __sched_setscheduler() ensures attr->sched_priority == 0 when
+ * !rt_policy. Always setting this ensures that things like
+ * getparam()/getattr() don't report silly values for !rt tasks.
+ */
+ p->rt_priority = attr->sched_priority;
+
p->normal_prio = normal_prio(p);
p->prio = rt_mutex_getprio(p);