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authorPeter Zijlstra2020-04-21 12:09:13 +0200
committerPeter Zijlstra2020-06-15 14:10:24 +0200
commit7a40798c714ff462863352d490b382515daba49e (patch)
tree06b3b98beb1f099911100ae6f61c6880b1c0721c
parent94beddacb53cddb78baab6b4597195bb766d70b0 (diff)
sched,irq: Convert to sched_set_fifo()
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>
-rw-r--r--kernel/irq/manage.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 761911168438..06b62746e1df 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -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