struct rps_map *old_map, *map;
cpumask_var_t mask;
int err, cpu, i;
- static DEFINE_SPINLOCK(rps_map_lock);
+ static DEFINE_MUTEX(rps_map_mutex);
if (!capable(CAP_NET_ADMIN))
return -EPERM;
map = NULL;
}
- spin_lock(&rps_map_lock);
+ mutex_lock(&rps_map_mutex);
old_map = rcu_dereference_protected(queue->rps_map,
- lockdep_is_held(&rps_map_lock));
+ mutex_is_locked(&rps_map_mutex));
rcu_assign_pointer(queue->rps_map, map);
- spin_unlock(&rps_map_lock);
if (map)
static_key_slow_inc(&rps_needed);
- if (old_map) {
- kfree_rcu(old_map, rcu);
+ if (old_map)
static_key_slow_dec(&rps_needed);
- }
+
+ mutex_unlock(&rps_map_mutex);
+
+ if (old_map)
+ kfree_rcu(old_map, rcu);
+
free_cpumask_var(mask);
return len;
}