From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net ([212.227.17.21]:64824 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756862AbdIIK6u (ORCPT ); Sat, 9 Sep 2017 06:58:50 -0400 Subject: Re: generic name for volume and subvolume root? To: linux-btrfs@vger.kernel.org, framstag@rus.uni-stuttgart.de References: <20170909083551.GC22060@rus.uni-stuttgart.de> <48008a58-a82e-d9f7-327e-eeb905e18aa1@gmx.com> <20170909104845.GW12642@rus.uni-stuttgart.de> From: Qu Wenruo Message-ID: <9911ae20-6181-5ce2-0374-e601a1034c4a@gmx.com> Date: Sat, 9 Sep 2017 18:58:38 +0800 MIME-Version: 1.0 In-Reply-To: <20170909104845.GW12642@rus.uni-stuttgart.de> Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 2017年09月09日 18:48, Ulli Horlacher wrote: > On Sat 2017-09-09 (18:40), Qu Wenruo wrote: > >>> Is there a generic name for both volume and subvolume root? >> >> Nope, subvolume (including snapshot) is not distinguished by its >> filename/path/directory name. >> >> And you can only do snapshot on subvolume (snapshot is one kind of >> subvolume) boundary. > > So, I can name a btrfs root volume also btrfs subvolume? Yes, root volume is also a subvolume, so just call "btrfs root volume" a "subvolume". > > I am talking about documentation, not coding! > > I just want yo use the correct terms. If you're referring to the term, I think subvolume is good enough. Which represents your original term, "directories one can snapshot". For the whole btrfs "volume", I would just call it "filesystem" to avoid the name "volume" or "subvolume" at all. Thanks, Qu