Re: [PATCH] crypto: add asynchronous compression support

[Herbert Xu <herbert@gondor.apana.org.au>]

On Fri, Oct 16, 2015 at 11:11:00PM +0800, Weigang Li wrote:
> This patch set introduces Asynchronous Compression API.
> What is proposed is a new crypto type called crypto_acomp_type, 
> plus new struct acomp_alg and struct crypto_acomp, together with number 
> of helper functions to register acomp type algorithms and allocate tfm 
> instances. This is to make it similar to how the existing crypto API 
> works for the ablkcipher, and akcipher types.
> The operations the new interface will provide are:
> 
> 	int (*compress)(struct acompress_request *req);
> 	int (*decompress)(struct acompress_request *req);
> 
> The benefits it gives interface are:
> - the new interface allows for asynchronous implementations and
>   scatterlist buffer that can use hardware to offload the compression
>   operations, the new asynchronous API can be called by the linux kernel
>   components (i.e., btrfs) who want to use hardware acceleration for data
>   compression.
> 
> New helper functions have been added to allocate crypto_acomp instances 
> and invoke the operations to make it easier to use.
> 
> Signed-off-by: Weigang Li <weigang.li@intel.com>

Thanks for the patch! Joonsoo Kim is also working on the compression
interface for zram.  Could you two collaborate and come up with one
interface rather than two?

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