From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C92F829DF5 for ; Thu, 19 Nov 2015 17:29:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BAC0E304039 for ; Thu, 19 Nov 2015 15:29:05 -0800 (PST) Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 97oVWISQAIqvuCRd for ; Thu, 19 Nov 2015 15:28:59 -0800 (PST) Date: Fri, 20 Nov 2015 10:24:55 +1100 From: Dave Chinner Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151119232455.GM14311@dastard> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Octavian Purdila Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > Naive implementation for non-mmu architectures: allocate physically > contiguous xfs buffers with alloc_pages. Terribly inefficient with > memory and fragmentation on high I/O loads but it may be good enough > for basic usage (which most non-mmu architectures will need). Can you please explain why you want to use XFS on low end, basic non-MMU devices? XFS is a high performance, enterprise/HPC level filesystem - it's not a filesystem designed for small IoT level devices - so I'm struggling to see why we'd want to expend any effort to make XFS work on such devices.... Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs