netdev - [RFC net-next af_unix v1 0/1] Allow delivery of SIGURG on AF

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Message-Id: <1605409085-20294-1-git-send-email-rao.shoaib@oracle.com>
Date:   Sat, 14 Nov 2020 18:58:04 -0800
From:   rao.shoaib@...cle.com
To:     netdev@...r.kernel.org, kuba@...nel.org
Cc:     Rao Shoaib <rao.shoaib@...cle.com>
Subject: [RFC net-next af_unix v1 0/1] Allow delivery of SIGURG on AF_UNIX streams socket

From: Rao Shoaib <rao.shoaib@...cle.com>

The use of AF_UNIX sockets is on the rise. We have a case where thousands
of processes connect locally to a database and issue queries that are
serviced by a pool of threads. Communication is done over AF_UNIX
sockets. Currently, there is no way for the submitter to signal the
servicing thread about an urgent condition such as abandoning
the query. This patch addresses that requirement by adding support for
MSG_OOB flag for AF_UNIX sockets. On receipt of such a flag,
the kernel sends a SIGURG to the peer.

Rao Shoaib (1):
  af_unix: Allow delivery of SIGURG on AF_UNIX streams socket

 net/unix/af_unix.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

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1.8.3.1