linux-kernel - Re: [PATCH RFC 0/7] Introduce new async/sync compression APIs

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Message-ID: <5694B2B2.7050806@intel.com>
Date:	Tue, 12 Jan 2016 16:00:50 +0800
From:	"Li, Weigang" <weigang.li@...el.com>
To:	Joonsoo Kim <js1304@...il.com>,
	Herbert Xu <herbert@...dor.apana.org.au>
CC:	"David S. Miller" <davem@...emloft.net>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Minchan Kim <minchan@...nel.org>,
	<linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: Re: [PATCH RFC 0/7] Introduce new async/sync compression APIs

On 1/4/2016 12:46 PM, Joonsoo Kim wrote:
> Happy New Year!
>
> This patchset is to introduce new compression APIs. It supports async/sync
> compression although there is no async compression driver yet. But, async
> APIs can be used as front-end to sync compression algorithm. Major change
> is that now APIs are stateless. Instead of previous implementation, tfm
> objects doesn't embedded any context so we can de/compress concurrently
> with one tfm object. Instead, this de/compression context is coupled with
> the request. This architecture change will make APIs more flexible.
>
> This is just a RFC so commit description isn't sufficient. If Herbert
> confirms that this is what he expect, I will respin the series with proper
> commit description and adding more algorithm support.
>
> Thanks.
>
> Joonsoo Kim (6):
>    crypto/compress: remove unused pcomp interface
>    crypto/compress: introduce sychronuous compression API
>    crypto/lzo: support SCOMPRESS alg type
>    crypto: testmgr: add scompress/acompress test
>    crypto/compress: add algorithm type specific flag, DECOMP_NOCTX
>    crypto/lzo: add CRYPTO_ALG_SCOMPRESS_DECOMP_NOCTX cra_flags
>
> Weigang Li (1):
>    crypto: add asynchronous compression support
>
>   crypto/Kconfig                     |  19 +-
>   crypto/Makefile                    |   4 +-
>   crypto/acompress.c                 | 164 ++++++++++++++++
>   crypto/lzo.c                       |  95 +++++++--
>   crypto/pcompress.c                 | 115 -----------
>   crypto/scompress.c                 | 283 +++++++++++++++++++++++++++
>   crypto/testmgr.c                   | 376 +++++++++++++++---------------------
>   crypto/testmgr.h                   | 142 --------------
>   crypto/zlib.c                      | 381 -------------------------------------
>   include/crypto/compress.h          | 354 +++++++++++++++++++++++++---------
>   include/crypto/internal/compress.h |  32 +---
>   include/linux/crypto.h             |  10 +-
>   12 files changed, 969 insertions(+), 1006 deletions(-)
>   create mode 100644 crypto/acompress.c
>   delete mode 100644 crypto/pcompress.c
>   create mode 100644 crypto/scompress.c
>   delete mode 100644 crypto/zlib.c
>
Hello Herbert,
Any comments on this patchset?