On Wed, Nov 19, 2014 at 05:20:42AM +0100, Stephan Mueller wrote:

When looking deeper into skcipher_sendmsg, I see that the input data is copied 
into the kernel using memcpy_fromiovec. The memory is allocated before the 
memcpy call by skcipher_alloc_sgl.

Zero-copy is done through sendpage.

Cheers,
-- 
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