linux-kernel - Re: [PATCH v3 7/7] x86/tlb: add tlb_flushall

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Message-ID: <4FA9FABC.9020900@intel.com>
Date:	Wed, 09 May 2012 13:03:56 +0800
From:	Alex Shi <alex.shi@...el.com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Borislav Petkov <bp@...64.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>, mgorman@...e.de,
	npiggin@...il.com, tglx@...utronix.de, mingo@...hat.com,
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	jeremy@...p.org, gregkh@...uxfoundation.org, glommer@...hat.com,
	riel@...hat.com, luto@....edu, avi@...hat.com, len.brown@...el.com,
	dhowells@...hat.com, fenghua.yu@...el.com, yinghai@...nel.org,
	ak@...ux.intel.com, cpw@....com, steiner@....com,
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	kamezawa.hiroyu@...fujitsu.com, viro@...iv.linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 7/7] x86/tlb: add tlb_flushall_factor into sysfs for
 user change

On 05/08/2012 11:48 PM, H. Peter Anvin wrote:

> On 05/08/2012 08:41 AM, Borislav Petkov wrote:
>> On Tue, May 08, 2012 at 08:31:53AM -0700, H. Peter Anvin wrote:
>>> On 05/08/2012 08:25 AM, Borislav Petkov wrote:
>>>>
>>>> Yep, this was supposed to be for pinpointing the proper entries count.
>>>> I believe we don't have this thing of having code intree but not really
>>>> intree - only for testing new silicon. Maybe a debug module or add this
>>>> to debugfs?
>>>>
>>>
>>> We have a lot of that kind of code, it is usually hidden under
>>> CONFIG_*DEBUG* something.
>>
>> Then maybe this is where this knob should go, along with adding it to
>> debugfs instead of sysfs...
>>
> 
> I don't see a problem with it in sysfs.
> 


Ok. I will modify it according to comments.
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