linux-kernel - [PATCH v1 0/3] zram: introduce crypto-backend api

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Message-ID: <20241119122713.3294173-1-avromanov@salutedevices.com>
Date: Tue, 19 Nov 2024 15:27:10 +0300
From: Alexey Romanov <avromanov@...utedevices.com>
To: <minchan@...nel.org>, <senozhatsky@...omium.org>, <axboe@...nel.dk>,
	<terrelln@...com>
CC: <linux-kernel@...r.kernel.org>, <linux-block@...r.kernel.org>,
	<kernel@...utedevices.com>, Alexey Romanov <avromanov@...utedevices.com>
Subject: [PATCH v1 0/3] zram: introduce crypto-backend api

Since we use custom backend implementation, we remove the ability
for users to use algorithms from crypto backend. This breaks
backward compatibility, user doesn't necessarily use one of the
algorithms from "custom" backends defined in zram folder.
For example, he can use some driver with hardware compression support.

This patchset adds an option that allows user to enable Crypto API
backend support. Crypto API backend is also implemented in a separate
file backend_crypto_api like the other custom backends.

Alexey Romanov (3):
  zram: pass zcomp instead of zcomp_params to create_context method
  zram: store crypto backends in list instead of array
  zram: introduce crypto-api backend

 drivers/block/zram/Kconfig              |  10 ++
 drivers/block/zram/Makefile             |   1 +
 drivers/block/zram/backend_842.c        |  14 +-
 drivers/block/zram/backend_842.h        |   2 +-
 drivers/block/zram/backend_crypto_api.c | 117 +++++++++++++++
 drivers/block/zram/backend_crypto_api.h |  10 ++
 drivers/block/zram/backend_deflate.c    |  15 +-
 drivers/block/zram/backend_deflate.h    |   2 +-
 drivers/block/zram/backend_lz4.c        |  15 +-
 drivers/block/zram/backend_lz4.h        |   2 +-
 drivers/block/zram/backend_lz4hc.c      |  15 +-
 drivers/block/zram/backend_lz4hc.h      |   2 +-
 drivers/block/zram/backend_lzo.c        |  14 +-
 drivers/block/zram/backend_lzo.h        |   2 +-
 drivers/block/zram/backend_lzorle.c     |  14 +-
 drivers/block/zram/backend_lzorle.h     |   2 +-
 drivers/block/zram/backend_zstd.c       |  15 +-
 drivers/block/zram/backend_zstd.h       |   2 +-
 drivers/block/zram/zcomp.c              | 183 ++++++++++++++++++------
 drivers/block/zram/zcomp.h              |  11 +-
 drivers/block/zram/zram_drv.c           |   7 +
 21 files changed, 390 insertions(+), 65 deletions(-)
 create mode 100644 drivers/block/zram/backend_crypto_api.c
 create mode 100644 drivers/block/zram/backend_crypto_api.h

-- 
2.34.1