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BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series

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Changes v5 => v6:
 - Blk-crypto's kernel crypto API fallback is no longer restricted to
   8-byte DUNs. It's also now separately configurable from blk-crypto, and
   can be disabled entirely, while still allowing the kernel to use inline
   encryption hardware. Further, struct bio_crypt_ctx takes up less space,
   and no longer contains the information needed by the crypto API
   fallback - the fallback allocates the required memory when necessary.
 - Blk-crypto now supports all file content encryption modes supported by
   fscrypt.
 - Fixed bio merging logic in blk-merge.c
 - Fscrypt now supports inline encryption with the direct key policy, since
   blk-crypto now has support for larger DUNs.
 - Keyslot manager now uses a hashtable to lookup which keyslot contains
   any particular key (thanks Eric!)
 - Fscrypt support for inline encryption now handles filesystems with
   multiple underlying block devices (thanks Eric!)
 - Numerous cleanups

Bug: 137270441
Test: refer to I26376479ee38259b8c35732cb3a1d7e15f9b05a3
Change-Id: I13e2e327e0b4784b394cb1e7cf32a04856d95f01
Link: https://lore.kernel.org/linux-block/[email protected]/
Signed-off-by: Satya Tangirala <[email protected]>
This commit is contained in:
Satya Tangirala 2019-12-17 14:26:29 -08:00 • committed by Alistair Delva
commit b7b3af9614
35 changed files with 10735 additions and 10918 deletions
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15
block/Kconfig
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@ -179,13 +179,20 @@ config BLK_SED_OPAL
config BLK_INLINE_ENCRYPTION
bool "Enable inline encryption support in block layer"
help
Build the blk-crypto subsystem. Enabling this lets the
block layer handle encryption, so users can take
advantage of inline encryption hardware if present.
config BLK_INLINE_ENCRYPTION_FALLBACK
bool "Enable crypto API fallback for blk-crypto"
depends on BLK_INLINE_ENCRYPTION
select CRYPTO
select CRYPTO_BLKCIPHER
help
Build the blk-crypto subsystem.
Enabling this lets the block layer handle encryption,
so users can take advantage of inline encryption
hardware if present.
Enabling this lets the block layer handle inline encryption
by falling back to the kernel crypto API when inline
encryption hardware is not present.
menu "Partition Types"