Re: [PATCH v2 1/5] crypto: Multi-buffer encryptioin infrastructure support

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On Wed, 2015-11-18 at 08:07 +0800, Herbert Xu wrote:
> On Tue, Nov 17, 2015 at 02:59:29PM -0800, Tim Chen wrote:
> >
> > Herbert, would you prefer me to use ablkcipher scatter walk instead,
> > assuming the overhead of both walk are about the same?
> 
> Well since you are going to potentially sleep in the middle of
> an operation I'd think ablkcipher is required, no?

We're using blkcipher walk in the implementation. 
As long as we use kmap and instead of kmap_atomic,
it allows us to sleep in the middle of the walk.

Tim

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