From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([222.73.24.84]:9312 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1030220Ab3HIG5p (ORCPT ); Fri, 9 Aug 2013 02:57:45 -0400 Message-ID: <5204928F.1020603@cn.fujitsu.com> Date: Fri, 09 Aug 2013 14:56:15 +0800 From: Wang Shilong MIME-Version: 1.0 To: Tomasz Chmielewski CC: "linux-btrfs@vger.kernel.org" Subject: Re: btrfs qgroup destroy -> ERROR: unable to create quota group: Device or resource busy References: <20130809133933.2fbfc6e4@virtall.com> <52048483.1010809@cn.fujitsu.com> <20130809140750.59832bc4@virtall.com> <52048770.40602@cn.fujitsu.com> <20130809144221.740d57b1@virtall.com> In-Reply-To: <20130809144221.740d57b1@virtall.com> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 08/09/2013 02:42 PM, Tomasz Chmielewski wrote: > On Fri, 09 Aug 2013 14:08:48 +0800 > Wang Shilong wrote: > >>> 0/4494 839516160 18446744073709481984 --- <------ want to remove >>> only this one >>> >>> 13/1 2142674944 2142674944 >>> 0/3973,0/3974,0/3978,0/3981,0/4355,0/4373,0/4398,0/4400,0/4401,0/4427,0/4448,0/4449,0/4457,0/4458,0/4475,0/4476,0/4487,0/4488,0/4489,0/4490,0/4491,0/4492,0/4493,0/4494,0/4495,0/4496,0/4497,0/4498,0/4499,0/4506,0/4507,0/4518 >>> >>> >>> Parent qgroup 13/1 makes accounting for other qgroups - therefore, >>> I don't want to remove it. >> >> Sorry, you must destroy relation between 13/1 and 4494. then you can >> remove it. > > So how exactly should I do it? A bit confused on how to proceed. btrfs qgroup remove 4494 13/1 will destroy relation between 4494 and 13/1 Then you can try: btrfs qgroup destroy 4494 Thanks, Wang > > - remove 13/1, remove 4494 > > - add 13/1, and add all previous qgroups to it? > 0/3973,0/3974,0/3978,0/3981,0/4355,0/4373,0/4398,0/4400,0/4401,.... > > - run quota scan? > > > It can't be right, can it? > >