linux-kernel - Re: [PATCH 6/6] x86,fpu: remove redundant increments of fpu

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Date:	Mon, 02 Feb 2015 13:40:06 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Oleg Nesterov <oleg@...hat.com>
CC:	dave.hansen@...ux.intel.com, sbsiddha@...il.com,
	luto@...capital.net, tglx@...utronix.de, mingo@...hat.com,
	hpa@...or.com, fenghua.yu@...el.com, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] x86,fpu: remove redundant increments of fpu_counter

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On 02/02/2015 01:34 PM, Oleg Nesterov wrote:
> On 02/02, riel@...hat.com wrote:
>> 
>> From: Rik van Riel <riel@...hat.com>
>> 
>> fpu.preload only gets set if new->thread.fpu_counter is already 
>> larger than 5. Incrementing it further does absolutely nothing. 
>> Remove those lines.
> 
> I _think_ that we increment it further on purpose. Note that
> fpu_counter is "char", so it seems that we want no more than 256
> automatic preloads.
> 
> So I am not sure about this change. At least the changelog doesn't
> look right.

You are right, lets drop this patch 6/6.

Do the other five look right?

- -- 
All rights reversed
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