Re: [PATCH v4 1/5] tracing: Introduce faultable tracepoints

[Steven Rostedt]

On Tue, 21 Nov 2023 15:36:47 +0100
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> 
> Still utterly confused about what task-tracing rcu is and how it is
> different from preemptible rcu.

Is this similar to synchronize_rcu_tasks()? As I understand that one (grace
period continues until all tasks have voluntarily scheduled or gone into
user space). But I'm a bit confused by synchronize_rcu_tasks_trace()?

Note, that for syncronize_rcu_tasks() the critical sections must not call
schedule (although it is OK to be preempted).

-- Steve