lock_pin_lock     384 include/linux/lockdep.h extern struct pin_cookie lock_pin_lock(struct lockdep_map *lock);
lock_pin_lock     408 include/linux/lockdep.h #define lockdep_pin_lock(l)	lock_pin_lock(&(l)->dep_map)
lock_pin_lock    4555 kernel/locking/lockdep.c EXPORT_SYMBOL_GPL(lock_pin_lock);