Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932625AbaDWTFj (ORCPT ); Wed, 23 Apr 2014 15:05:39 -0400 Received: from mx1.redhat.com ([209.132.183.28]:23877 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932604AbaDWTFf (ORCPT ); Wed, 23 Apr 2014 15:05:35 -0400 Date: Wed, 23 Apr 2014 15:05:32 -0400 From: Vivek Goyal To: Andy Lutomirski Cc: David Miller , "linux-kernel@vger.kernel.org" , cgroups@vger.kernel.org, Network Development , Tejun Heo , Simo Sorce , lpoetter@redhat.com, kay@redhat.com, Daniel Walsh Subject: Re: [PATCH 0/2] net: Implement SO_PEERCGROUP and SO_PASSCGROUP socket options Message-ID: <20140423190532.GE22755@redhat.com> References: <1397596546-10153-1-git-send-email-vgoyal@redhat.com> <20140422.160558.627080587952506099.davem@davemloft.net> <20140422.162927.2182797573155988911.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 22, 2014 at 01:31:13PM -0700, Andy Lutomirski wrote: [..] > > Otherwise, without SO_PASSCGROUP, there is no way for datagram sockets > > to find out the peer's open() time cgroup. > > Right. > > I'd still like to know what userspace applications want this feature. > The canonical example seems to be journald, but journald doesn't use > unix datagram sockets AFAICS, Dan Walsh mentiond that systemd also monitors /dev/log (datagram socket) and logs everything in journal. There this information should be useful. Thanks Vivek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/