From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com ([141.146.126.69]:31670 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752003Ab3K2Br5 (ORCPT ); Thu, 28 Nov 2013 20:47:57 -0500 Message-ID: <5297F475.9070009@oracle.com> Date: Fri, 29 Nov 2013 09:57:09 +0800 From: Anand Jain MIME-Version: 1.0 To: Wang Shilong , Alex Lyakas CC: Wang Shilong , "dsterba@suse.cz Sterba" , "linux-btrfs@vger.kernel.org FILE SYSTEM list:BTRFS" Subject: Re: [PATCH v2] btrfs-progs: calculate disk space that a subvol could free References: <1380300329-9123-1-git-send-email-anand.jain@oracle.com> <1380468336-5170-1-git-send-email-anand.jain@oracle.com> <20131001133919.GE18291@twin.jikos.cz> <525220DC.2030403@oracle.com> <20131008164951.GC12986@twin.jikos.cz> <237D022A-BBC2-412C-9E41-45EB4B299660@gmail.com> <5256206C.3080306@oracle.com> <52562019.4090508@cn.fujitsu.com> <5297EF3F.4030400@cn.fujitsu.com> In-Reply-To: <5297EF3F.4030400@cn.fujitsu.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: > If so, i don't think this should be implemented in user space, Btrfs quota > implement such function in kernel space, but it also face a problem that > deleting a subvolume will break space accounting(because subvolume deletion > won't iterate the whole fs tree). Hi Alex, Wang. Thanks for comments, as Wang suggested before, I am working on the qgroups to handle our user space requisites here. I will be sending out review patch soon. pls stay tuned. Thanks, Anand