From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sun, 3 Feb 2008 02:39:36 +0100 From: Andrea Arcangeli Subject: Re: [patch 0/4] [RFC] EMMU Notifiers V5 Message-ID: <20080203013936.GB7185@v2.random> References: <20080201050439.009441434@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080201050439.009441434@sgi.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Robin Holt , Avi Kivity , Izik Eidus , kvm-devel@lists.sourceforge.net, Peter Zijlstra , steiner@sgi.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, daniel.blueman@quadrics.com List-ID: On Thu, Jan 31, 2008 at 09:04:39PM -0800, Christoph Lameter wrote: > - Has page tables to track pages whose refcount was elevated(?) but > no reverse maps. Just a correction, rmaps exists or swap couldn't be sane, it's just that it's not built on the page_t because the guest memory is really virtual and not physical at all (hence it swaps really well, thanks to the regular linux VM algorithms without requiring any KVM knowledge at all, it all looks (shared) anonymous memory as far as linux is concerned ;). -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org