On Wed, 23 Oct 2024 11:13:53 -0400 Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> wrote: > That question is relevant for ftrace and perf too: are there data > structures that are reclaimed with call_rcu() after being unregistered > from syscall tracepoints ? ftrace doesn't assume RCU for when to synchronize with tracepoints being unregistered. It uses: tracepoint_synchronize_unregister() -- Steve
