Thread (9 messages) 9 messages, 2 authors, 2026-01-21

Re: [PATCH 5/6] xfs: fix the xattr scrub to detect freemap/entries array collisions

From: Christoph Hellwig <hch@infradead.org>
Date: 2026-01-21 15:08:29
Also in: linux-xfs

On Tue, Jan 20, 2026 at 10:38:59PM -0800, Darrick J. Wong wrote:
From: Darrick J. Wong <djwong@kernel.org>

In the previous patches, we observed that it's possible for there to be
freemap entries with zero size but a nonzero base.  This isn't an
inconsistency per se, but older kernels can get confused by this and
corrupt the block, leading to corruption.
A bit hard to follow between removing the helper and the logic
change, but the result looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>
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