diff options
| -rw-r--r-- | kernel/rcu/tasks.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 66d8473f1bda..1aa6a24a9bc2 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1454,9 +1454,10 @@ static void rcu_tasks_trace_pertask(struct task_struct *t, struct list_head *hop) { // During early boot when there is only the one boot CPU, there - // is no idle task for the other CPUs. Also, the grace-period - // kthread is always in a quiescent state. Either way, just return. - if (unlikely(t == NULL) || t == current) + // is no idle task for the other CPUs. Also, the grace-period + // kthread is always in a quiescent state. In addition, just return + // if this task is already on the list. + if (unlikely(t == NULL) || t == current || !list_empty(&t->trc_holdout_list)) return; rcu_st_need_qs(t, 0); |