am 01678789: am 5b7b2809: Merge "epoll: add EPOLLRDHUP, EPOLLWAKEUP, and EPOLLONESHOT events"

* commit '01678789bca18d1a4894ae7f987f847b5ae0ce62':
  epoll: add EPOLLRDHUP, EPOLLWAKEUP, and EPOLLONESHOT events