fs,fsverity: reject size changes on fsverity files in setattr_prepare

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Add the check to reject truncates of fsverity files directly to
setattr_prepare instead of requiring the file system to handle it.
Besides removing boilerplate code, this also fixes the complete lack of
such check in btrfs.

Fixes: 146054090b ("btrfs: initial fsverity support")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Link: https://lore.kernel.org/r/20260128152630.627409-2-hch@lst.de
Signed-off-by: Eric Biggers <ebiggers@kernel.org>

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This commit is contained in:

Christoph Hellwig 2026-01-28 16:26:13 +01:00 • committed by Eric Biggers

parent 63804fed14

commit e9734653c5

5 changed files with 11 additions and 42 deletions

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12

fs/attr.c

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4

fs/ext4/inode.c

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4

fs/f2fs/file.c

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8

fs/verity/open.c

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25

include/linux/fsverity.h

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