rcu: Assign higher prio to RCU threads if rcutorture is built-in

[linux-2.6-microblaze.git] / kernel / rcu / tree.c

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 7498a41..8143b8d 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3923,12 +3923,16 @@ static int __init rcu_spawn_gp_kthread(void)
        struct task_struct *t;
 
        /* Force priority into range. */
-       if (IS_ENABLED(CONFIG_RCU_BOOST) && kthread_prio < 1)
+       if (IS_ENABLED(CONFIG_RCU_BOOST) && kthread_prio < 2
+           && IS_BUILTIN(CONFIG_RCU_TORTURE_TEST))
+               kthread_prio = 2;
+       else if (IS_ENABLED(CONFIG_RCU_BOOST) && kthread_prio < 1)
                kthread_prio = 1;
        else if (kthread_prio < 0)
                kthread_prio = 0;
        else if (kthread_prio > 99)
                kthread_prio = 99;
+
        if (kthread_prio != kthread_prio_in)
                pr_alert("rcu_spawn_gp_kthread(): Limited prio to %d from %d\n",
                         kthread_prio, kthread_prio_in);