struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);
int ret = 0;
- mutex_lock(&rcu_state.barrier_mutex);
cpus_read_lock();
+ mutex_lock(&rcu_state.barrier_mutex);
if (rcu_rdp_is_offloaded(rdp)) {
if (cpu_online(cpu)) {
ret = work_on_cpu(cpu, rcu_nocb_rdp_deoffload, rdp);
ret = -EINVAL;
}
}
- cpus_read_unlock();
mutex_unlock(&rcu_state.barrier_mutex);
+ cpus_read_unlock();
return ret;
}
struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);
int ret = 0;
- mutex_lock(&rcu_state.barrier_mutex);
cpus_read_lock();
+ mutex_lock(&rcu_state.barrier_mutex);
if (!rcu_rdp_is_offloaded(rdp)) {
if (cpu_online(cpu)) {
ret = work_on_cpu(cpu, rcu_nocb_rdp_offload, rdp);
ret = -EINVAL;
}
}
- cpus_read_unlock();
mutex_unlock(&rcu_state.barrier_mutex);
+ cpus_read_unlock();
return ret;
}