From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f46.google.com ([74.125.82.46]:35781 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752104AbcF1NdE (ORCPT ); Tue, 28 Jun 2016 09:33:04 -0400 Received: by mail-wm0-f46.google.com with SMTP id v199so140104844wmv.0 for ; Tue, 28 Jun 2016 06:33:03 -0700 (PDT) Message-ID: <57727B27.7060104@plexistor.com> Date: Tue, 28 Jun 2016 16:27:03 +0300 From: Boaz Harrosh MIME-Version: 1.0 To: Christoph Hellwig , Dave Chinner CC: xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, linux-nvdimm@ml01.01.org Subject: Re: xfs: untangle the direct I/O and DAX path, fix DAX locking References: <1466609236-23801-1-git-send-email-hch@lst.de> <20160623232446.GA12670@dastard> <20160624072612.GA22205@lst.de> <20160624230045.GG12670@dastard> <20160628131059.GA30475@lst.de> In-Reply-To: <20160628131059.GA30475@lst.de> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On 06/28/2016 04:10 PM, Christoph Hellwig wrote: > On Sat, Jun 25, 2016 at 09:00:45AM +1000, Dave Chinner wrote: <> > > Right. And an existing application can get DAX turned on under its > back, and will now suddently get different synchronization behavior. > That is if it's writes happen to be aligned to the fs block size. > Is there an actual application that does that? or is this purely theoretical right now? Thanks Boaz