Hey folks,
On 19/01/23 14:36, Valentin Schneider wrote:
> Patches
> ===
>
> o Patches 1-5 spread out the tracepoint across relevant sites.
> Patch 5 ends up sprinkling lots of #include which I'm
> not
> the biggest fan of, but is the least horrible solution I've been able to
> come
>
Background
==
Detecting IPI *reception* is relatively easy, e.g. using
trace_irq_handler_{entry,exit} or even just function-trace
flush_smp_call_function_queue() for SMP calls.
Figuring out their *origin*, is trickier as there is no generic tracepoint tied
to e.g. smp_call_function():
