fscrypt: Update encryption policy version docs

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Update the wording of the documentation to put v1 encryption policies a
bit more firmly in the past, explicitly calling them "deprecated" (which
is consistent with the warning message the kernel has printed ever since
v5.4).  Do the same for FS_IOC_GET_ENCRYPTION_POLICY which supports only
v1 policies, and remove the explicit recommendation to fall back to it.

Also clarify that reusing master keys across policies isn't the best
practice or normal usage, even though it's technically allowed for v2.

Link: https://patch.msgid.link/20260718212526.53943-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>

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Eric Biggers 2026-07-18 14:25:26 -07:00

parent f5bd17a8b5

commit 7880dbd119

1 changed files with 18 additions and 22 deletions

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Documentation/filesystems/fscrypt.rst

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