On Fri, 8 Apr 2022 08:58:34 -0700 "Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote: > > I do not see why PREEMPT_RT is special here. Why was it singled out? > > Because I didn't see the point of doing kthread_create_worker() to create > a pair of kthread_worker structuress that were never going to be used > in PREEMPT_RT kernels. > > Or are PREEMPT_RT kernels no longer booting with rcupdate.rcu_normal? > Last I knew, they all did this to avoid IPI latencies from expedited > grace periods. Has this changed? Honestly, I don't know. But I guess I can go and find out ;-) -- Steve
