From: Tadeusz Struk <tadeusz.struk@intel.com>
Date: Thu, 19 Mar 2015 19:31:40 +0000 (-0700)
Subject: crypto: algif - change algif_skcipher to be asynchronous
X-Git-Tag: omap-for-v4.1/fixes-rc1~141^2~179^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a596999b7ddfe7fc5b7b8adf9536ab1c39cb12d2;p=pandora-kernel.git

crypto: algif - change algif_skcipher to be asynchronous

The way the algif_skcipher works currently is that on sendmsg/sendpage it
builds an sgl for the input data and then on read/recvmsg it sends the job
for encryption putting the user to sleep till the data is processed.
This way it can only handle one job at a given time.
This patch changes it to be asynchronous by adding AIO support.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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