From mboxrd@z Thu Jan  1 00:00:00 1970
From: pbonzini@redhat.com (Paolo Bonzini)
Date: Tue, 27 Aug 2013 00:23:16 +0200
Subject: [lttng-dev] [RFC PATCH] Introduce RCU-enabled DQs (v2)
In-Reply-To: <CAGaKXu1V5Cz+9b=v=HEt2kn=2sJiD+ORm_9SyB7v35zNXWWUOw@mail.gmail.com>
References: <1377371209-2017-1-git-send-email-ncmike@ncultra.org>
	<20130825191835.GA1073@Krystal>
	<CAGaKXu1V5Cz+9b=v=HEt2kn=2sJiD+ORm_9SyB7v35zNXWWUOw@mail.gmail.com>
Message-ID: <521BD554.4010806@redhat.com>

Il 26/08/2013 23:48, Mike Day ha scritto:
> 
> 
> Mathieu - Thanks for the review! And thanks for the code, I'm working
> with it right now. I like the idea of using a flag to provide a form of
> atomicity for the doubly-linked list elements. I'm also planning on
> running some timing tests to see of the additional memory barriers and
> atomic accesses make *any* difference whatsoever. 

We probably have already too many queue/list variations (a relic of the
BSD queue.h headers).  Linux does not need RCU-friendly reverse
iteration at all, do we really need it?  In other words, I think your v2
was really close to mergeable state...

Paolo