XANMOD: Change rcutree.kthread_prio to SCHED_RR policy

Signed-off-by: Alexandre Frade <kernel@xanmod.org>
xanmod · Aug 2, 2022 · a0a63c0 · a0a63c0
1 parent a034480
commit a0a63c0
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Showing 3 changed files with 4 additions and 4 deletions.
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
@@ -3341,7 +3341,7 @@ rcu_torture_init(void)
 				t = per_cpu(ksoftirqd, cpu);
 				WARN_ON_ONCE(!t);
 				sp.sched_priority = 2;
-				sched_setscheduler_nocheck(t, SCHED_FIFO, &sp);
+				sched_setscheduler_nocheck(t, SCHED_RR, &sp);
 			}
 		}
 	}

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
@@ -4588,7 +4588,7 @@ static int __init rcu_spawn_gp_kthread(void)
 		return 0;
 	if (kthread_prio) {
 		sp.sched_priority = kthread_prio;
-		sched_setscheduler_nocheck(t, SCHED_FIFO, &sp);
+		sched_setscheduler_nocheck(t, SCHED_RR, &sp);
 	}
 	rnp = rcu_get_root();
 	raw_spin_lock_irqsave_rcu_node(rnp, flags);

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
@@ -1006,7 +1006,7 @@ static void rcu_cpu_kthread_setup(unsigned int cpu)
 	struct sched_param sp;
 
 	sp.sched_priority = kthread_prio;
-	sched_setscheduler_nocheck(current, SCHED_FIFO, &sp);
+	sched_setscheduler_nocheck(current, SCHED_RR, &sp);
 #endif /* #ifdef CONFIG_RCU_BOOST */
 
 	WRITE_ONCE(rdp->rcuc_activity, jiffies);
@@ -1194,7 +1194,7 @@ static void rcu_spawn_one_boost_kthread(struct rcu_node *rnp)
 	rnp->boost_kthread_task = t;
 	raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
 	sp.sched_priority = kthread_prio;
-	sched_setscheduler_nocheck(t, SCHED_FIFO, &sp);
+	sched_setscheduler_nocheck(t, SCHED_RR, &sp);
 	wake_up_process(t); /* get to TASK_INTERRUPTIBLE quickly. */
 
  out: