[RFC net-next af_unix v1 1/1] af_unix: Allow delivery of SIGURG on AF_UNIX streams socket

[rao . shoaib]

From: Rao Shoaib <rao.sho...@oracle.com>

For AF_UNIX stream socket send SIGURG to the peer if
the msg has MSG_OOB flag set.

Signed-off-by: Rao Shoaib <rao.sho...@oracle.com>
---
 net/unix/af_unix.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 92784e5..4f01d74 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1840,8 +1840,6 @@ static int unix_stream_sendmsg(struct socket *sock, 
struct msghdr *msg,
                return err;
 
        err = -EOPNOTSUPP;
-       if (msg->msg_flags&MSG_OOB)
-               goto out_err;
 
        if (msg->msg_namelen) {
                err = sk->sk_state == TCP_ESTABLISHED ? -EISCONN : -EOPNOTSUPP;
@@ -1906,6 +1904,9 @@ static int unix_stream_sendmsg(struct socket *sock, 
struct msghdr *msg,
                sent += size;
        }
 
+       if (msg->msg_flags & MSG_OOB)
+               sk_send_sigurg(other);
+
        scm_destroy(&scm);
 
        return sent;
-- 
1.8.3.1