From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp02.belwue.de ([129.143.71.87]:65469 "EHLO smtp02.belwue.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751728AbdHWVN1 (ORCPT ); Wed, 23 Aug 2017 17:13:27 -0400 Received: from fex.rus.uni-stuttgart.de (fex.rus.uni-stuttgart.de [129.69.1.129]) by smtp02.belwue.de (Postfix) with SMTP id 8CABA6118 for ; Wed, 23 Aug 2017 23:13:25 +0200 (MEST) Date: Wed, 23 Aug 2017 23:13:25 +0200 From: Ulli Horlacher To: Linux fs Btrfs Subject: Re: user snapshots Message-ID: <20170823211325.GC28319@rus.uni-stuttgart.de> References: <20170822214531.44538589@natsu> <20170822165725.GL14804@rus.uni-stuttgart.de> <20170822180155.GM14804@rus.uni-stuttgart.de> <22940.31139.194399.982315@tree.ty.sabi.co.uk> <20170822215343.GP14804@rus.uni-stuttgart.de> <124CEBB9-BF23-4688-B23C-294EDCAD27AA@demfloro.ru> <20170823101635.114d02d2@job> <20170823072048.GB28319@rus.uni-stuttgart.de> <22941.27164.739577.517915@tree.ty.sabi.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <22941.27164.739577.517915@tree.ty.sabi.co.uk> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Wed 2017-08-23 (12:42), Peter Grandi wrote: > > So, still: What is the problem with user_subvol_rm_allowed? > > As usual, it is complicated: mostly that while subvol creation > is very cheap, subvol deletion can be very expensive. But then > so can be creating many snapshots, as in this: But it seems one cannot prohibit a user making snapshots? Then root must delete them? -- Ullrich Horlacher Server und Virtualisierung Rechenzentrum TIK Universitaet Stuttgart E-Mail: horlacher@tik.uni-stuttgart.de Allmandring 30a Tel: ++49-711-68565868 70569 Stuttgart (Germany) WWW: http://www.tik.uni-stuttgart.de/ REF:<22941.27164.739577.517915@tree.ty.sabi.co.uk>