taglinefilesource code
readsem76include/net/sock.hstruct semaphore  readsem;
readsem311net/unix/af_unix.csk->protinfo.af_unix.readsem=MUTEX;  /* single task reading lock */
readsem1110net/unix/af_unix.cdown(&sk->protinfo.af_unix.readsem);    /* Lock the socket */
readsem1127net/unix/af_unix.cup(&sk->protinfo.af_unix.readsem);
readsem1137net/unix/af_unix.cdown(&sk->protinfo.af_unix.readsem);
readsem1176net/unix/af_unix.cup(&sk->protinfo.af_unix.readsem);