o "spin_lock_irq": spin_lock_irq() and spin_unlock_irq()
pairs.
+ o "rw_lock": read/write lock() and unlock() rwlock pairs.
+
+ o "rw_lock_irq": read/write lock_irq() and unlock_irq()
+ rwlock pairs.
+
o "mutex_lock": mutex_lock() and mutex_unlock() pairs.
o "rwsem_lock": read/write down() and up() semaphore pairs.