Re: [PATCH 0/2] Introduce the request handling for dm-crypt

[Mark Brown]

On Thu, Nov 12, 2015 at 04:20:41PM +0800, Baolin Wang wrote:

> 3. perforamence data
> It is just a simple dd test result, and will provide the formal report
> in future. But from the simple test, we can see the improvement.

It's probably also worth pointing out that Qualcomm have been shipping
an out of tree implementation of this as a separate module in their BSP
(originally written by Danesh Garg who's on this thread):

   https://android.googlesource.com/kernel/msm/+/android-msm-dory-3.10-kitkat-wear/drivers/md/dm-req-crypt.c

Android now wants to encrypt phones and tablets by default and have been
seeing substantial performance hits as a result, we can try to get
people to share performance data from productionish systems but it might
be difficult.

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