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

[Steven Rostedt]

On Tue, 21 Nov 2023 11:00:13 -0500
Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> wrote:

> > tasks-tracing-rcu:
> >    extention of tasks to have critical-sections ? Should this simply be
> >    tasks?  
> 
> tasks-trace-rcu is meant to allow tasks to block/take a page fault 
> within the read-side. It is specialized for tracing and has a single 
> domain. It does not need the smp_mb on the read-side, which makes it 
> lower-overhead than SRCU.

IOW, task-trace-rcu allows the call to schedule in its critical section,
whereas task-rcu does not?

-- Steve