On Sat, 14 Nov 2020 18:58:04 -0800 rao.sho...@oracle.com wrote: > From: Rao Shoaib <rao.sho...@oracle.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.
You need to widen the CC list on this, I doubt anyone paid much attention.