Date: Thu, 27 Oct 2016 17:27:00 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: David Herrmann <dh.herrmann@gmail.com>
Cc: linux-kernel@vger.kernel.org, Andy Lutomirski <luto@amacapital.net>,
        Jiri Kosina <jikos@kernel.org>, Greg KH <greg@kroah.com>,
        Hannes Reinecke <hare@suse.com>, Steven Rostedt <rostedt@goodmis.org>,
        Arnd Bergmann <arnd@arndb.de>, Tom Gundersen <teg@jklm.no>,
        Josh Triplett <josh@joshtriplett.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC v1 06/14] bus1: util - queue utility library
Message-ID: <20161027152700.GH3175@twins.programming.kicks-ass.net>
References: <20161026191810.12275-1-dh.herrmann@gmail.com>
 <20161026191810.12275-7-dh.herrmann@gmail.com>
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On Wed, Oct 26, 2016 at 09:18:02PM +0200, David Herrmann wrote:
> Messages can be destined for multiple queues, hence, we need to be
> careful that all queues get a consistent order of incoming messages. We
> define the concept of `global order' to provide a basic set of
> guarantees. This global order is a partial order on the set of all
> messages. The order is defined as:

Ah, ok. So it _is_ a partial order only. I got confused by earlier
reports, and the term 'global order' in general, to think you did a
total order. And then I wondered wth you needed total ordering for.

Maybe best to scrub 'global order' from the entire text. It's not
helpful.