From mboxrd@z Thu Jan  1 00:00:00 1970
From: pbonzini@redhat.com (Paolo Bonzini)
Date: Tue, 20 Sep 2011 18:39:33 +0200
Subject: [ltt-dev] [URCU PATCH] cmm: provide lightweight rmb/wmb on PPC
In-Reply-To: <20110920163125.GA31802@Krystal>
References: <1316502769-576-1-git-send-email-pbonzini@redhat.com>
	<20110920163125.GA31802@Krystal>
Message-ID: <4E78C1C5.2080001@redhat.com>

On 09/20/2011 06:31 PM, Mathieu Desnoyers wrote:
> I don't think lwsync orders non-cacheable memory operations. Therefore,
> is it the right choice for cmm_rmb/cmm_wmb ?

I think you're right. "eieio;lwsync" is good for rmb, lwsync is good for 
wmb/smp_rmb/smp_wmb.

Paolo