POLLFREE 4778 drivers/android/binder.c wake_up_poll(&thread->wait, EPOLLHUP | POLLFREE); POLLFREE 1263 fs/eventpoll.c !(pollflags & POLLFREE)) { POLLFREE 1293 fs/eventpoll.c if (pollflags & POLLFREE) { POLLFREE 48 fs/signalfd.c wake_up_poll(wqh, EPOLLHUP | POLLFREE);