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Commit 392ad89e authored by Satya Tangirala's avatar Satya Tangirala Committed by Alistair Delva
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BACKPORT: FROMLIST: block: blk-crypto for Inline Encryption



We introduce blk-crypto, which manages programming keyslots for struct
bios. With blk-crypto, filesystems only need to call bio_crypt_set_ctx with
the encryption key, algorithm and data_unit_num; they don't have to worry
about getting a keyslot for each encryption context, as blk-crypto handles
that. Blk-crypto also makes it possible for layered devices like device
mapper to make use of inline encryption hardware.

Blk-crypto delegates crypto operations to inline encryption hardware when
available, and also contains a software fallback to the kernel crypto API.
For more details, refer to Documentation/block/inline-encryption.rst.

Bug: 137270441
Test: tested as series; see I26aac0ac7845a9064f28bb1421eb2522828a6dec
Change-Id: I6a98e518e5de50f1d4110441568ecd142a02e900
Signed-off-by: default avatarSatya Tangirala <satyat@google.com>
Link: https://patchwork.kernel.org/patch/11214731/
parent 8fda3053
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