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Re: [PATCH v2 04/10] crypto/compress: add asynchronous compression support

From Herbert Xu <herbert@gondor.apana.org.au>
Newsgroups linux.kernel
Subject Re: [PATCH v2 04/10] crypto/compress: add asynchronous compression support
Date 2016-01-27 09:10 +0100
Message-ID <qVtkR-wF-9@gated-at.bofh.it> (permalink)
References <qV710-1ma-3@gated-at.bofh.it> <qV711-1ma-27@gated-at.bofh.it> <qVt1w-7Z-13@gated-at.bofh.it> <qVtbd-cl-13@gated-at.bofh.it>
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On Wed, Jan 27, 2016 at 03:59:05PM +0800, Li, Weigang wrote:
>
> The acomp is also SG-based, while scomp only accepts flat buffer.

Right, but do we need a pointer-based scomp at all? IPComp would
certainly be better off with an SG-based interface.  Any other
users of compression are presumably dealing with large amounts
of data where an SG interface would make more sense.

A pointer interface makes sense for shash because you may be hashing
16 bytes at a time.  Nobody sane is going to be compressing 16 bytes,
or are they?

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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[PATCH v2 00/10] Introduce new async/sync compression APIs Joonsoo Kim <js1304@gmail.com> - 2016-01-26 09:20 +0100
  [PATCH v2 02/10] crypto: add algorithm type specific flag, CRYPTO_ALG_PRIVATE Joonsoo Kim <js1304@gmail.com> - 2016-01-26 09:20 +0100
  [PATCH v2 06/10] crypto/lz4: support new compression APIs Joonsoo Kim <js1304@gmail.com> - 2016-01-26 09:20 +0100
  [PATCH v2 04/10] crypto/compress: add asynchronous compression support Joonsoo Kim <js1304@gmail.com> - 2016-01-26 09:20 +0100
    Re: [PATCH v2 04/10] crypto/compress: add asynchronous compression  support Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-27 08:50 +0100
      Re: [PATCH v2 04/10] crypto/compress: add asynchronous compression  support "Li, Weigang" <weigang.li@intel.com> - 2016-01-27 09:00 +0100
        Re: [PATCH v2 04/10] crypto/compress: add asynchronous compression  support Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-27 09:10 +0100
          Re: [PATCH v2 04/10] crypto/compress: add asynchronous compression  support Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-27 09:10 +0100
            Re: [PATCH v2 04/10] crypto/compress: add asynchronous compression  support "Li, Weigang" <weigang.li@intel.com> - 2016-01-27 09:30 +0100
  [PATCH v2 03/10] crypto/compress: introduce sychronuous compression API Joonsoo Kim <js1304@gmail.com> - 2016-01-26 09:20 +0100

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