Linux Btrfs filesystem development
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From: Andrei Borzenkov <arvidjaar@gmail.com>
To: Qu Wenruo <wqu@suse.com>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>,
	Richard Weinberger <richard@nod.at>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: qgroup rescan worker makes suspend fail
Date: Sun, 20 Sep 2026 07:56:47 +0300	[thread overview]
Message-ID: <bbec11f2-7ec8-4cf8-9d50-24681cdaf4bd@gmail.com> (raw)
In-Reply-To: <38c0b7f1-a876-45ab-92e2-223e2f70d82d@suse.com>

20.09.2026 01:39, Qu Wenruo wrote:
> 
> To be honest, qgroup mode is no longer recommended, except for rigid
> subvolume layouts, and since you need rescan it's definitely the not
> recommended case.
> 
> The current only well known user is snapper, and we're pushing snapper
> not to utilize qgroup by default.
> 
> So unless you have a very clear use case, it's better just disable
> qgroups completely.

I am not aware of any other way to get true subvolume space consumption 
and thus implementing space based retention policy. "btrfs du" is hardly 
an option.

If qgroup is deprecated, what are other options to get this information?

  parent reply	other threads:[~2026-09-20  4:56 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-19 13:40 qgroup rescan worker makes suspend fail Richard Weinberger
2026-09-19 17:34 ` Johannes Thumshirn
2026-09-19 18:33   ` AW: " Richard Weinberger
2026-09-19 22:39   ` Qu Wenruo
2026-09-19 22:48     ` Qu Wenruo
2026-09-20  4:56     ` Andrei Borzenkov [this message]
2026-09-20  5:28       ` Qu Wenruo
2026-09-19 23:38 ` Qu Wenruo
2026-09-20 13:04   ` AW: " Richard Weinberger

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