Re: [PATCH v2 4/4] rv/rtapp: Add wakeup monitor

On Wed, Jul 22, 2026 at 09:42:59AM +0800, Nam Cao wrote:

Chao Liu [off-list ref] writes:

quoted

quoted

+static void handle_sched_waking(void *data, struct task_struct *task)
+{
+	if (in_task()) {
+		if (current->prio > task->prio)
+			ltl_atom_pulse(task, LTL_WOKEN_BY_LOWER_PRIO, true);

The implementation also reports wakeups from softirq context through
WOKEN_BY_SOFTIRQ:

quoted

+	} else if (in_serving_softirq()) {
+		ltl_atom_pulse(task, LTL_WOKEN_BY_SOFTIRQ, true);
+	}

Should this description mention softirq wakeups as well?

Technically, on RT kernel, softirq is a SCHED_OTHER task. On !RT kernel,
softirq can also be executed as a SCHED_OTHER task, which is the cause
for concern.

But explicitly mentioning softirq does not hurt, I wouldn't oppose that.

Thanks for the clarification. I understand it better now.

Thanks,
Chao

Nam