From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f198.google.com (mail-wr0-f198.google.com [209.85.128.198]) by kanga.kvack.org (Postfix) with ESMTP id 5A4D66B0260 for ; Sun, 1 Oct 2017 04:17:28 -0400 (EDT) Received: by mail-wr0-f198.google.com with SMTP id a43so2891537wrc.2 for ; Sun, 01 Oct 2017 01:17:28 -0700 (PDT) Received: from newverein.lst.de (verein.lst.de. [213.95.11.211]) by mx.google.com with ESMTPS id n6si5822061wmd.160.2017.10.01.01.17.27 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 01 Oct 2017 01:17:27 -0700 (PDT) Date: Sun, 1 Oct 2017 10:17:26 +0200 From: Christoph Hellwig Subject: Re: [PATCH 3/7] xfs: protect S_DAX transitions in XFS read path Message-ID: <20171001081726.GD11895@lst.de> References: <20170925231404.32723-1-ross.zwisler@linux.intel.com> <20170925231404.32723-4-ross.zwisler@linux.intel.com> <20170926063234.GA6870@lst.de> <20170926143357.GA18758@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Dan Williams Cc: Christoph Hellwig , Ross Zwisler , Andrew Morton , "linux-kernel@vger.kernel.org" , "Darrick J. Wong" , "J. Bruce Fields" , Dave Chinner , Jan Kara , Jeff Layton , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , linux-xfs@vger.kernel.org On Tue, Sep 26, 2017 at 11:11:55AM -0700, Dan Williams wrote: > I think we'll always need an explicit override available, but yes we > need to think about what the override looks like in the context of a > kernel that is able to automatically pick the right I/O policy > relative to the media type. A potential mixed policy for reads vs > writes makes sense. Where would this finer grained I/O policy > selection go other than more inode flags? fadvise? -- 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