Re: [RFC/PATCH] doc: volatile considered evil

David Rientjes
2007-05-08T23:54:36Z

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.