From: Soheil Hassas Yeganeh <soheil.k...@gmail.com> Date: Wed, 6 Mar 2019 13:01:36 -0500
> From: Soheil Hassas Yeganeh <soh...@google.com> > > Returning 0 as inq to userspace indicates there is no more data to > read, and the application needs to wait for EPOLLIN. For a connection > that has received FIN from the remote peer, however, the application > must continue reading until getting EOF (return value of 0 > from tcp_recvmsg) or an error, if edge-triggered epoll (EPOLLET) is > being used. Otherwise, the application will never receive a new > EPOLLIN, since there is no epoll edge after the FIN. > > Return 1 when there is no data left on the queue but the > connection has received FIN, so that the applications continue > reading. > > Fixes: b75eba76d3d72 (tcp: send in-queue bytes in cmsg upon read) > Signed-off-by: Soheil Hassas Yeganeh <soh...@google.com> > Acked-by: Neal Cardwell <ncardw...@google.com> > Signed-off-by: Eric Dumazet <eduma...@google.com> > Acked-by: Yuchung Cheng <ych...@google.com> Applied and queued up for -stable, thank you.
