[RFC PATCH 0/5] Generic IPI sending tracepoint

[Steven Rostedt]

On Tue, 11 Oct 2022 17:40:26 +0100
Valentin Schneider <vschneid at redhat.com> wrote:

> > You could keep the tracepoint as a mask, and then make it pretty, like cpus=3-5,8
> > in user-space. For example with a trace-cmd/perf loadable plugin, libtracefs helper.
> >  
> 
> That's a nice idea, the one downside I see is that means registering an
> event handler for all events with cpumasks rather than directly targeting
> cpumask fields, but that doesn't look too horrible. I'll dig a bit in that
> direction.

We could just make all all dynamic array's of unsigned long use that
format? I don't know of any other event that has dynamic arrays of
unsigned longs. And doing a search doesn't come up with any.

-- Steve