On Mon, Sep 08, 2025 at 01:14:14PM -0400, Steven Rostedt wrote:
> + /*
> + * All accesses related to the event are within the same RCU section in
> + * perf_event_callchain_deferred(). The RCU grace period before the
> + * event is freed will make sure all those accesses are complete by
> then.
> + */
> + rcuwait_wait_event(&event->pending_unwind_wait,
> !event->pending_unwind_callback, TASK_UNINTERRUPTIBLE);
You need a narrower terminal, this is again excessive. I mostly code
with my screen split in 4 columns (3 if I can't find my glasses), and
that gets me around 90 character columns.
> + if (event->attr.defer_callchain)
> + init_task_work(&event->pending_unwind_work,
> + perf_event_callchain_deferred);
And let me hand you a bucket of {}, I've heard they're getting expensive
over in the US due to this tariff nonsense :-)
