rcu_read_lock
DEFINE_LOCK_GUARD_0(rcu, rcu_read_lock(), rcu_read_unlock())
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock(); /* required to get upper dev */
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();
rcu_read_lock();