[PATCH]sched/core: Return possibility to set RT and DL classes back

[Kirill Tkhai <ktkhai@parallels.com>]

[PATCH]sched/core: Return possibility to set RT and DL classes back

I found that it's impossible to set RT policy for tasks at the moment.

This is regression after commit [sched: Consider pi boosting in setscheduler()]
				[c365c292d05908c6ea6f32708f331e21033fe71d     ]
Fix that.

Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Ingo Molnar <mingo@redhat.com>
---
 kernel/sched/core.c | 4 ++++
 1 file changed, 4 insertions(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 84b23ce..30cf9ad 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3193,6 +3193,10 @@ static void __setscheduler_params(struct task_struct *p,
 	 * 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);
+
 	set_load_weight(p);
 }