From: Wang Shilong <wangshilong1991@gmail.com>
To: Duncan <1i5t5.duncan@cox.net>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 0/9] enhance btrfs qgroup show command
Date: Mon, 23 Sep 2013 20:56:49 +0800 [thread overview]
Message-ID: <F83FBE02-86FA-4CE3-9EB1-4D275AF6A41C@gmail.com> (raw)
In-Reply-To: <pan$a3bb6$bcc83f63$430b22dd$bd36c43d@cox.net>
Hello,
> Wang Shilong posted on Mon, 23 Sep 2013 10:18:19 +0800 as excerpted:
>
>> On 09/23/2013 09:53 AM, Dusty Mabe wrote:
>
>>> There is one other thing I have noticed while playing around
>>> with quota and qgroups. If I delete subvolumes I can manage to get some
>>> of the qgroup information to be reported as a negative number. If you
>>> are interested check out my steps at
>>> http://dustymabe.com/2013/09/22/btrfs-how-big-are-my-snapshots/ . The
>>> system I was using was Fedora 19 (so not the latest stuff so this may
>>> be a known issue already).
>
>> I will take a look at this issue.
>
> FWIW, I remember seeing discussion of the negative qgroup numbers on-
> list, but as I don't use quotas I didn't track resolution. So it should
> indeed be a known issue, but I'm not sure if it's fixed or someone's at
> least working on it yet or not.
I think this problem reported by Dusty is different from before.
Previously, we discussed about negative numbers because quota rescan
has not been implemented.
In Dusty's reproduced steps, there are no parent qgroups. So i think every
qgroup should works as expected, if negative numbers come out, it must
be a *bug*.
Thanks,
Wang
>
> But that might give you a duplicating instance if you need one, anyway.
> (Unless of course Dusty reported it earlier too and that's what I'm
> remembering.)
>
> --
> Duncan - List replies preferred. No HTML msgs.
> "Every nonfree program has a lord, a master --
> and if you use the program, he is your master." Richard Stallman
>
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next prev parent reply other threads:[~2013-09-23 12:56 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-06 9:43 [PATCH 0/9] enhance btrfs qgroup show command Miao Xie
2012-12-06 9:44 ` [PATCH 1/9] Btrfs-progs: restructure show_qgroups Miao Xie
2012-12-06 9:45 ` [PATCH 2/9] Btrfs-progs: introduces '-p' option to print the ID of the parent qgroups Miao Xie
2012-12-06 9:46 ` [PATCH 3/9] Btrfs-progs: introduces '-c' option to print the ID of the child qgroups Miao Xie
2012-12-06 9:47 ` [PATCH 4/9] Btrfs-progs: introduce '-l' option to print max referenced size of qgroups Miao Xie
2012-12-06 9:47 ` [PATCH 5/9] Btrfs-progs: introduce '-e' option to print max exclusive " Miao Xie
2012-12-06 9:48 ` [PATCH 6/9] Btrfs-progs: list all qgroups impact given path(include ancestral qgroups) Miao Xie
2012-12-06 9:50 ` [PATCH 7/9] Btrfs-progs: list all qgroups impact given path(exclude " Miao Xie
2012-12-06 9:50 ` [PATCH 8/9] Btrfs-progs: enhance btrfs qgroup show to sort qgroups Miao Xie
2012-12-06 9:51 ` [PATCH 9/9] Btrfs-progs: enhance btrfs qgroup to print the result as a table Miao Xie
2013-09-22 15:14 ` [PATCH 0/9] enhance btrfs qgroup show command Dusty Mabe
2013-09-23 1:13 ` Wang Shilong
2013-09-23 1:53 ` Dusty Mabe
2013-09-23 2:18 ` Wang Shilong
2013-09-23 9:29 ` Duncan
2013-09-23 12:56 ` Wang Shilong [this message]
2013-09-23 16:55 ` Dusty Mabe
[not found] ` <5240EC74.2030506@cn.fujitsu.com>
2013-09-24 3:32 ` Dusty Mabe
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