Symbol: __down_read_killable
kernel/locking/rwsem.c
1562
if (LOCK_CONTENDED_RETURN(sem, __down_read_trylock, __down_read_killable)) {
kernel/locking/rwsem.c
1672
if (LOCK_CONTENDED_RETURN(sem, __down_read_trylock, __down_read_killable)) {