From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from csamuel.org ([74.50.50.137]:35924 "EHLO csamuel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751367Ab2LRXCN (ORCPT ); Tue, 18 Dec 2012 18:02:13 -0500 Message-ID: <50D0F5E0.2010701@csamuel.org> Date: Wed, 19 Dec 2012 10:01:52 +1100 From: Chris Samuel MIME-Version: 1.0 To: Wade Cline CC: miaox@cn.fujitsu.com, bo.li.liu@oracle.com, linux-btrfs@vger.kernel.org, cmm@linux.vnet.ibm.com Subject: Re: [PATCH] [RFC v2] Btrfs: Subpagesize blocksize (WIP). References: <1355814805-13935-1-git-send-email-clinew@linux.vnet.ibm.com> <20121218073050.GA19332@liubo.cn.oracle.com> <50D02E0A.8080505@cn.fujitsu.com> <50D0EDAA.3090202@linux.vnet.ibm.com> In-Reply-To: <50D0EDAA.3090202@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 19/12/12 09:26, Wade Cline wrote: > Yeah. Basically, if we create a btrfs filesystem with a 4k blocksize > then that filesystem is incompatible with architectures such as PowerPC > and MIPS which have a page size larger than 4k. What happens currently? Does the btrfs code detect the mismatch and refuse to mount, or does it all go horribly wrong? cheers, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC