From: Yafang Shao <laoar.shao@gmail.com>
To: hch@infradead.org, david@fromorbit.com
Cc: djwong@kernel.org, jlayton@kernel.org,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-xfs@vger.kernel.org, yc1082463@gmail.com
Subject: Re: [PATCH] xfs: report a writeback error on a read() call
Date: Wed, 25 Jun 2025 10:44:57 +0800 [thread overview]
Message-ID: <51cc5d2e-b7b1-4e48-9a8c-d6563bbc5e2d@gmail.com> (raw)
In-Reply-To: <aFqyyUk9lO5mSguL@infradead.org>
> That's really kernel wide policy and not something magic done by a
> single file system.
XFS already supports an optional policy for handling metadata errors via:
/sys/fs/xfs/<disk>/error/metadata/
It would be reasonable to introduce a similar optional policy for data
errors:
/sys/fs/xfs/<disk>/error/data/
This data error policy could allow the filesystem to shut down
immediately if corrupted data is detected that might otherwise be
exposed to userspace.
While it’s unclear whether such a policy should be implemented at the
VFS level as a kernel-wide mechanism, we can certainly extend the
existing XFS error-handling framework to support it. In other words,
this would be a natural extension of current XFS functionality—not a
reinvention.
next prev parent reply other threads:[~2025-06-25 2:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAN2Y7hyi1HCrSiKsDT+KD8hBjQmsqzNp71Q9Z_RmBG0LLaZxCA@mail.gmail.com>
2025-06-24 14:14 ` [PATCH] xfs: report a writeback error on a read() call Christoph Hellwig
2025-06-24 18:26 ` Jeff Layton
2025-06-24 19:56 ` Matthew Wilcox
2025-06-24 20:25 ` Jeff Layton
2025-06-25 2:44 ` Yafang Shao [this message]
2025-06-25 7:01 ` Christoph Hellwig
2025-06-25 10:40 ` Jeff Layton
2025-06-25 11:21 ` Christoph Hellwig
2025-06-25 11:49 ` Jeff Layton
2025-06-25 11:56 ` Christoph Hellwig
2025-06-25 14:06 ` Jeff Layton
2025-06-26 2:41 ` Yafang Shao
2025-06-26 3:57 ` Dave Chinner
2025-06-26 10:25 ` Christoph Hellwig
2025-06-26 22:22 ` Dave Chinner
2025-06-27 21:19 ` Matthew Wilcox
2025-06-26 10:23 ` Christoph Hellwig
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