Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760275AbWLFHEf (ORCPT ); Wed, 6 Dec 2006 02:04:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760278AbWLFHEf (ORCPT ); Wed, 6 Dec 2006 02:04:35 -0500 Received: from nf-out-0910.google.com ([64.233.182.187]:52243 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760275AbWLFHEe (ORCPT ); Wed, 6 Dec 2006 02:04:34 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=NK6nIr7YnU0npJdayKv2uJaM2B9wzmRw5A59KgFsEsS9tfMCrbTe1bBg1SsVP/uVt782AQjMZ4pBSIlR0GleRVKD8CTMxi/l1LGf7mO6v76qwe1GBD6uim6I10TdkDCGqrHP9558wPvq+00NmIpxmWoqQ432NGv9yBXId4OZKjA= Message-ID: Date: Tue, 5 Dec 2006 23:04:32 -0800 From: "Matt Reimer" To: "David Miller" Subject: Re: [PATCH] mm: D-cache aliasing issue in cow_user_page Cc: linux-kernel@vger.kernel.org In-Reply-To: <20061205.165948.98864221.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20061205.132412.116353924.davem@davemloft.net> <20061205.165948.98864221.davem@davemloft.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 734 Lines: 20 On 12/5/06, David Miller wrote: > From: "Matt Reimer" > Date: Tue, 5 Dec 2006 16:57:12 -0800 > > > Right, but isn't he declaring that each architecture needs to take > > care of this? So, say, on ARM we'd need to make kunmap() not a NOP and > > call flush_dcache_page() ? > > No. He is only solving a problem that occurs on HIGHMEM > configurations on systems which can have D-cache aliasing > issues. Ok. Thanks for the clarification. Matt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/