sched,irq: Convert to sched_set_fifo() (7a40798c) · Commits · 戴 / test

Because SCHED_FIFO is a broken scheduler model (see previous patches) take away the priority field, the kernel can't possibly make an informed decision. Effectively no change. Cc: tglx@linutronix.de Signed-off-by:

Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by:

Ingo Molnar <mingo@kernel.org>

kernel/irq/manage.c

+1 −5

Original line number	Diff line number	Diff line
		@@ -1271,9 +1271,6 @@ static int
		setup_irq_thread(struct irqaction *new, unsigned int irq, bool secondary)
		{
		struct task_struct *t;
		struct sched_param param = {
		.sched_priority = MAX_USER_RT_PRIO/2,
		};

		if (!secondary) {
		t = kthread_create(irq_thread, new, "irq/%d-%s", irq,
		@@ -1281,13 +1278,12 @@ setup_irq_thread(struct irqaction *new, unsigned int irq, bool secondary)
		} else {
		t = kthread_create(irq_thread, new, "irq/%d-s-%s", irq,
		new->name);
		param.sched_priority -= 1;
		}

		if (IS_ERR(t))
		return PTR_ERR(t);

		sched_setscheduler_nocheck(t, SCHED_FIFO, &param);
		sched_set_fifo(t);

		/*
		* We keep the reference to the task struct even if

Admin message