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From: David Sterba <dsterba@suse.cz>
To: Fedor Pchelkin <pchelkin@ispras.ru>
Cc: David Sterba <dsterba@suse.com>, Chris Mason <clm@fb.com>,
	Josef Bacik <josef@toxicpanda.com>, Boris Burkov <boris@bur.io>,
	linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	lvc-project@linuxtesting.org,
	syzbot+81670362c283f3dd889c@syzkaller.appspotmail.com,
	stable@vger.kernel.org
Subject: Re: [PATCH] btrfs: qgroup: add missing extent changeset release
Date: Tue, 27 Aug 2024 18:03:41 +0200	[thread overview]
Message-ID: <20240827160341.GZ25962@suse.cz> (raw)
In-Reply-To: <20240827151243.63493-1-pchelkin@ispras.ru>

On Tue, Aug 27, 2024 at 06:12:43PM +0300, Fedor Pchelkin wrote:
> The extent changeset may have some additional memory dynamically allocated
> for ulist in result of clear_record_extent_bits() execution.

This can happen, as clear_record_extent_bits adds more data to the
changeset in some cases. What I don't see yet how it happens. An extent
range must be split so that a new entry is added with different bits
set. This is usual thing, but why does this happen with the quotas
disabled.

  reply	other threads:[~2024-08-27 16:03 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-27 15:12 [PATCH] btrfs: qgroup: add missing extent changeset release Fedor Pchelkin
2024-08-27 16:03 ` David Sterba [this message]
2024-08-28  9:19   ` Fedor Pchelkin
2024-08-28  9:24 ` Qu Wenruo
2024-08-28  9:30   ` Qu Wenruo
2024-08-28 16:14     ` [PATCH v2] btrfs: qgroup: don't use extent changeset when not needed Fedor Pchelkin
2024-08-28 16:57       ` Boris Burkov
2024-08-28 21:36       ` Qu Wenruo
2024-08-28 21:56       ` David Sterba

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