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Date: Tue, 08 May 2007 17:00:29 -0700
From: Randy Dunlap <randy.dunlap@oracle.com>
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To: David Rientjes <rientjes@google.com>
CC: Krzysztof Halasa <khc@pm.waw.pl>,
       Andrew Morton <akpm@linux-foundation.org>,
       Paul Sokolovsky <pmiscml@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: [RFC/PATCH] doc: volatile considered evil
References: <516386418.20070501080839@gmail.com> <20070430235642.e576e917.akpm@linux-foundation.org> <20070508121404.17bd97a6.randy.dunlap@oracle.com> <alpine.DEB.0.99.0705081217180.12908@chino.kir.corp.google.com> <m3k5vj2iha.fsf@maximus.localdomain> <alpine.DEB.0.99.0705081306000.15420@chino.kir.corp.google.com> <20070508161309.c398a913.randy.dunlap@oracle.com> <alpine.DEB.0.99.0705081650530.28511@chino.kir.corp.google.com>
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David Rientjes wrote:
> On Tue, 8 May 2007, Randy Dunlap wrote:
> 
>> It's already there, isn't it?  <quote from original:>
>>
>> The only acceptable uses for "volatile" are:
>>
>>  - in _code_, i.e., for things like the definition of "readb()" etc, where we
>>    use it to force a particular access.
>>  - with inline asms
>>  - on "jiffies", for stupid legacy reasons
>>
>> </quote>
>>
>> or are you saying that you want to subject/header/title modified also?
>>
> 
> I wasn't aware that you were considering the inclusion of Linus' entire 
> email in the document.  There exists a point where CodingStyle becomes so 
> large that people choose not to read it in its entirety, so I was 
> expecting only an addition that would explicit document the acceptable and
> unacceptable uses of 'volatile' in kernel code with perhaps a link to his 
> email.

but I wouldn't put it into CodingStyle.

-- 
~Randy
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