EPOLLWAKEUP
if (epi->event.events & EPOLLWAKEUP) {
if (epi->event.events & EPOLLWAKEUP) {
if ((epev->events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
epev->events &= ~EPOLLWAKEUP;
epev->events &= ~EPOLLWAKEUP;
#define EP_PRIVATE_BITS (EPOLLWAKEUP | EPOLLONESHOT | EPOLLET | EPOLLEXCLUSIVE)
EPOLLWAKEUP | EPOLLET | EPOLLEXCLUSIVE)