linux-kernel - Re: [PATCH V5 0/2] copy to/in/from user optimization

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Date:	Tue, 6 Oct 2015 16:37:49 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Feng Kan <fkan@....com>
Cc:	patches@....com, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	philipp.tomsich@...obroma-systems.com, dann.frazier@...onical.com,
	tim.gardner@...onical.com, craig.magina@...onical.com,
	soni.trilok.oss@...il.com
Subject: Re: [PATCH V5 0/2] copy to/in/from user optimization

On Wed, Sep 23, 2015 at 11:55:37AM -0700, Feng Kan wrote:
> This coverts all copy in/from/to user file to use the copy template file.
> The copy template file is based on the memcpy.S. The first patch converts
> the memcpy to use the copy template as well. Overnight trinity test and
> 10G iperf was used to test correctness and performance. Noticeable
> iperf improvement (~30%) on the receive side.
> 
> V5 Changes:
>    1. Switch patch ordering.
>    2. Simplify assembly code and use fixed large tags in marco
>    3. Fixed indentation issue.
> 
> Feng Kan (2):
>   arm64: Change memcpy in kernel to use the copy template file
>   arm64: copy_to-from-in_user optimization using copy template

Queued for 4.4 (subject to passing my LTP testing). Thanks.

-- 
Catalin
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