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Diffstat (limited to 'kernel')
-rw-r--r--kernel/irq/manage.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index fa17855ca65a..e16caa81f887 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -840,9 +840,6 @@ static void irq_thread_dtor(struct callback_head *unused)
static int irq_thread(void *data)
{
struct callback_head on_exit_work;
- static const struct sched_param param = {
- .sched_priority = MAX_USER_RT_PRIO/2,
- };
struct irqaction *action = data;
struct irq_desc *desc = irq_to_desc(action->irq);
irqreturn_t (*handler_fn)(struct irq_desc *desc,
@@ -854,8 +851,6 @@ static int irq_thread(void *data)
else
handler_fn = irq_thread_fn;
- sched_setscheduler(current, SCHED_FIFO, &param);
-
init_task_work(&on_exit_work, irq_thread_dtor);
task_work_add(current, &on_exit_work, false);
@@ -950,6 +945,9 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
*/
if (new->thread_fn && !nested) {
struct task_struct *t;
+ static const struct sched_param param = {
+ .sched_priority = MAX_USER_RT_PRIO/2,
+ };
t = kthread_create(irq_thread, new, "irq/%d-%s", irq,
new->name);
@@ -957,6 +955,9 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
ret = PTR_ERR(t);
goto out_mput;
}
+
+ sched_setscheduler(t, SCHED_FIFO, &param);
+
/*
* We keep the reference to the task struct even if
* the thread dies to avoid that the interrupt code