lockref 120 include/linux/dcache.h struct lockref d_lockref; /* per-dentry lock and refcount */ lockref 36 include/linux/lockref.h extern void lockref_get(struct lockref *); lockref 37 include/linux/lockref.h extern int lockref_get_not_zero(struct lockref *); lockref 38 include/linux/lockref.h extern int lockref_get_or_lock(struct lockref *); lockref 39 include/linux/lockref.h extern int lockref_put_or_lock(struct lockref *); lockref 41 include/linux/lockref.h extern void lockref_mark_dead(struct lockref *); lockref 42 include/linux/lockref.h extern int lockref_get_not_dead(struct lockref *); lockref 45 include/linux/lockref.h static inline int __lockref_is_dead(const struct lockref *l)