From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qe0-f47.google.com (mail-qe0-f47.google.com [209.85.128.47]) by kanga.kvack.org (Postfix) with ESMTP id 8A58B6B0031 for ; Fri, 27 Dec 2013 15:14:50 -0500 (EST) Received: by mail-qe0-f47.google.com with SMTP id t7so9400936qeb.20 for ; Fri, 27 Dec 2013 12:14:50 -0800 (PST) Received: from blu0-omc4-s36.blu0.hotmail.com (blu0-omc4-s36.blu0.hotmail.com. [65.55.111.175]) by mx.google.com with ESMTP id nh12si29682335qeb.42.2013.12.27.12.14.49 for ; Fri, 27 Dec 2013 12:14:49 -0800 (PST) Message-ID: From: John David Anglin In-Reply-To: Content-Type: text/plain; charset="US-ASCII"; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit MIME-Version: 1.0 (Apple Message framework v936) Subject: Re: [PATCH] remap_file_pages needs to check for cache coherency Date: Fri, 27 Dec 2013 15:14:39 -0500 References: <20131227180018.GC4945@linux.intel.com> <20131227193330.GE4945@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: John David Anglin Cc: Matthew Wilcox , linux-mm@kvack.org, "David S. Miller" , sparclinux@vger.kernel.org, linux-parisc@vger.kernel.org, linux-mips@linux-mips.org On 27-Dec-13, at 2:47 PM, John David Anglin wrote: > It's worth looking at. The value is supposed to be returned by the > PDC_CACHE PDC > call but I know my rp3440 returns a value of 0 indicating that the > aliasing boundary > is unknown and may be greater than 16MB. c3750 data cache has an aliasing boundary of 4 MB, so I think we are stuck with large SHMLBA. Dave -- John David Anglin dave.anglin@bell.net -- 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