On 8/22/22, Pingfan Liu <kernelfans@xxxxxxxxx> wrote: > On Mon, Aug 22, 2022 at 02:08:38PM -0400, Joel Fernandes wrote: >> On Sun, Aug 21, 2022 at 10:16 PM Pingfan Liu <kernelfans@xxxxxxxxx> >> wrote: >> > >> > In order to support parallel, rcu_state.n_online_cpus should be >> > atomic_dec() >> >> What does Parallel mean? Is that some kexec terminology? >> > > 'Parallel' means concurrent. It is not a kexec terminology, instead, > should be SMP. Only sort of. See section A.6 of Paul 's book: http://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html Jason
