----- On Apr 15, 2021, at 10:54 AM, lbj lbj...@yahoo.com wrote: > Mathieu, > Thanks so much for your wealth if information and timely responses, they are > greatly appreciated. Final question: is there any harm in explicitly calling > rcu_thread_online/rcu_thread_offline from within my call_rcu callback > function? > From what you described it sounds like it would be redundant, but presumably > would be harmless. Correct? Thanks again.
You could indeed invoke pairs of: rcu_thread_offline(); <--- emphasis on _offline_ here. [ long wait ... ] rcu_thread_online(); in that specific order within the call-rcu worker thread. Note that the qsbr state of the call-rcu worker thread is "online" when it invokes the callbacks, so each callback should make sure that state is back to "online" before it returns control back to its caller. Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
