xfs: validate that zoned RT devices are zone aligned

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commit 982d2616a2 upstream.

Garbage collection assumes all zones contain the full amount of blocks.
Mkfs already ensures this happens, but make the kernel check it as well
to avoid getting into trouble due to fuzzers or mkfs bugs.

Fixes: 2167eaabe2 ("xfs: define the zoned on-disk format")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Cc: stable@vger.kernel.org # v6.15
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Christoph Hellwig 2025-12-16 18:30:08 +01:00 • committed by Greg Kroah-Hartman

parent d29ed9ff97

commit cec87632c3

1 changed files with 15 additions and 0 deletions

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fs/xfs/libxfs/xfs_sb.c

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