Eric Dumazet 5456f09aaf af_unix: fix unix_dgram_poll() behavior for EPOLLOUT event ... Alban Crequy reported a problem with connected dgram af_unix sockets and provided a test program. epoll() would miss to send an EPOLLOUT event when a thread unqueues a packet from the other peer, making its receive queue not full. This is because unix_dgram_poll() fails to call sock_poll_wait(file, &unix_sk(other)->peer_wait, wait); if the socket is not writeable at the time epoll_ctl(ADD) is called. We must call sock_poll_wait(), regardless of 'writable' status, so that epoll can be notified later of states changes. Misc: avoids testing twice (sk->sk_shutdown & RCV_SHUTDOWN) Reported-by: Alban Crequy <alban.crequy@collabora.co.uk> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2010-11-08 13:50:09 -08:00
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af_unix.c	af_unix: fix unix_dgram_poll() behavior for EPOLLOUT event	2010-11-08 13:50:09 -08:00
garbage.c	unix/garbage: kill copy of the skb queue walker	2010-05-03 15:39:58 -07:00
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sysctl_net_unix.c