From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH] x86: add SSE-based copy_page() Date: Thu, 20 Nov 2008 08:46:50 +0000 Message-ID: <4925320A.76E4.0078.0@novell.com> References: <1e07957a-d4fe-40f9-8b2d-cf247d65ff09@default> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: Dan Magenheimer , xen-devel@lists.xensource.com, Dexuan Cui List-Id: xen-devel@lists.xenproject.org >>> Keir Fraser 19.11.08 22:21 >>> >Looking at c/s 18724 again also I wonder what fixmap_domain_page() was >introduced for, rather than just using map_domain_page(). Is it an = attempt >to reduce global TLB shootdowns? It's not very clear nor very pretty and = I'd >rather just kill it and use map_domain_page(). Yes, this and avoiding the need to take another lock. Jan