From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932532AbcETH6x (ORCPT ); Fri, 20 May 2016 03:58:53 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:53228 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932110AbcETH6u (ORCPT ); Fri, 20 May 2016 03:58:50 -0400 Date: Fri, 20 May 2016 00:58:49 -0700 From: Christoph Hellwig To: Viacheslav Dubeyko Cc: Jaegeuk Kim , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, Vyacheslav.Dubeyko@hgst.com, Cyril.Guyot@hgst.com, Adam.Manzanares@hgst.com, Damien.LeMoal@hgst.com Subject: Re: [PATCH] f2fs: introduce on-disk layout version checking functionality Message-ID: <20160520075849.GA8067@infradead.org> References: <1463679966.3573.4.camel@slavad-ubuntu-14.04> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1463679966.3573.4.camel@slavad-ubuntu-14.04> User-Agent: Mutt/1.5.24 (2015-08-30) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Please don't do the mistake of versioning the structure, but instead use feature flags, similar to what extN and modern XFS file systems do.