[patch 5/5] genirq/timings: Move free timings out of spinlocked region

From: Thomas Gleixner
Date: Thu Jun 29 2017 - 17:46:17 EST


No point to do memory management from a interrupt disabled spin locked
region.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
kernel/irq/manage.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1489,7 +1489,6 @@ static struct irqaction *__free_irq(unsi
if (!desc->action) {
irq_settings_clr_disable_unlazy(desc);
irq_shutdown(desc);
- irq_remove_timings(desc);
}

#ifdef CONFIG_SMP
@@ -1531,8 +1530,10 @@ static struct irqaction *__free_irq(unsi
}
}

- if (!desc->action)
+ if (!desc->action) {
irq_release_resources(desc);
+ irq_remove_timings(desc);
+ }

mutex_unlock(&desc->request_mutex);