fsverity: support verifying data from large folios

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Try to make fs/verity/verify.c aware of large folios.  This includes
making fsverity_verify_bio() support the case where the bio contains
large folios, and adding a function fsverity_verify_folio() which is the
equivalent of fsverity_verify_page().

There's no way to actually test this with large folios yet, but I've
tested that this doesn't cause any regressions.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20230127221529.299560-1-ebiggers@kernel.org

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Eric Biggers 2023-01-27 14:15:29 -08:00

parent 245edf445c

commit 5d0f0e57ed

4 changed files with 44 additions and 37 deletions

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20

Documentation/filesystems/fsverity.rst

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3

fs/buffer.c

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43

fs/verity/verify.c

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15

include/linux/fsverity.h

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