|
@@ -68,6 +68,8 @@ s64 __percpu_counter_sum(struct percpu_counter *fbc)
|
|
|
}
|
|
|
EXPORT_SYMBOL(__percpu_counter_sum);
|
|
|
|
|
|
+static struct lock_class_key percpu_counter_irqsafe;
|
|
|
+
|
|
|
int percpu_counter_init(struct percpu_counter *fbc, s64 amount)
|
|
|
{
|
|
|
spin_lock_init(&fbc->lock);
|
|
@@ -84,6 +86,16 @@ int percpu_counter_init(struct percpu_counter *fbc, s64 amount)
|
|
|
}
|
|
|
EXPORT_SYMBOL(percpu_counter_init);
|
|
|
|
|
|
+int percpu_counter_init_irq(struct percpu_counter *fbc, s64 amount)
|
|
|
+{
|
|
|
+ int err;
|
|
|
+
|
|
|
+ err = percpu_counter_init(fbc, amount);
|
|
|
+ if (!err)
|
|
|
+ lockdep_set_class(&fbc->lock, &percpu_counter_irqsafe);
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
void percpu_counter_destroy(struct percpu_counter *fbc)
|
|
|
{
|
|
|
if (!fbc->counters)
|