From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 737D4C43331 for ; Fri, 6 Sep 2019 21:19:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4A4A82070C for ; Fri, 6 Sep 2019 21:19:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391303AbfIFVTP (ORCPT ); Fri, 6 Sep 2019 17:19:15 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49602 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388619AbfIFVTP (ORCPT ); Fri, 6 Sep 2019 17:19:15 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 067E2195DB80; Fri, 6 Sep 2019 21:19:15 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-120-255.rdu2.redhat.com [10.10.120.255]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6272C5D712; Fri, 6 Sep 2019 21:19:11 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20190906174102.GB2819@mit.edu> References: <20190906174102.GB2819@mit.edu> <5396.1567719164@warthog.procyon.org.uk> <14883.1567725508@warthog.procyon.org.uk> <27732.1567764557@warthog.procyon.org.uk> <8e60555e-9247-e03f-e8b4-1d31f70f1221@redhat.com> To: "Theodore Y. Ts'o" Cc: dhowells@redhat.com, Linus Torvalds , Steven Whitehouse , Ray Strode , Greg Kroah-Hartman , Nicolas Dichtel , raven@themaw.net, keyrings@vger.kernel.org, linux-usb@vger.kernel.org, linux-block , Christian Brauner , LSM List , linux-fsdevel , Linux API , Linux List Kernel Mailing , Al Viro , "Ray, Debarshi" , Robbie Harwood Subject: Re: Why add the general notification queue and its sources MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <24429.1567804750.1@warthog.procyon.org.uk> Date: Fri, 06 Sep 2019 22:19:10 +0100 Message-ID: <24430.1567804750@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.62]); Fri, 06 Sep 2019 21:19:15 +0000 (UTC) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Theodore Y. Ts'o wrote: > Something else which we should consider up front is how to handle the > case where you have multiple userspace processes that want to > subscribe to the same notification. I have that. > This also implies that we'll need to have some kind of standard header > at the beginning to specify the source of a particular notification > message. That too. David From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Howells Date: Fri, 06 Sep 2019 21:19:10 +0000 Subject: Re: Why add the general notification queue and its sources Message-Id: <24430.1567804750@warthog.procyon.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit List-Id: References: <20190906174102.GB2819@mit.edu> <5396.1567719164@warthog.procyon.org.uk> <14883.1567725508@warthog.procyon.org.uk> <27732.1567764557@warthog.procyon.org.uk> <8e60555e-9247-e03f-e8b4-1d31f70f1221@redhat.com> In-Reply-To: <20190906174102.GB2819@mit.edu> To: "Theodore Y. Ts'o" Cc: dhowells@redhat.com, Linus Torvalds , Steven Whitehouse , Ray Strode , Greg Kroah-Hartman , Nicolas Dichtel , raven@themaw.net, keyrings@vger.kernel.org, linux-usb@vger.kernel.org, linux-block , Christian Brauner , LSM List , linux-fsdevel , Linux API , Linux List Kernel Mailing , Al Viro , "Ray, Debarshi" , Robbie Harwood Theodore Y. Ts'o wrote: > Something else which we should consider up front is how to handle the > case where you have multiple userspace processes that want to > subscribe to the same notification. I have that. > This also implies that we'll need to have some kind of standard header > at the beginning to specify the source of a particular notification > message. That too. David