lockref_get_not_zero 913 fs/dcache.c gotref = lockref_get_not_zero(&ret->d_lockref); lockref_get_not_zero 39 include/linux/lockref.h extern int lockref_get_not_zero(struct lockref *); lockref_get_not_zero 84 lib/lockref.c EXPORT_SYMBOL(lockref_get_not_zero);