On Tue, 8 May 2007, Randy Dunlap wrote:
> From: Randy Dunlap <[email protected]>
>
> Add information on the problems with the C-language "volatile" keyword
> and why it should not be used (most of the time).
>
> Signed-off-by: Randy Dunlap <[email protected]>
> ---
> Documentation/volatile-usage.txt | 129 +++++++++++++++++++++++++++++++++++++++
> 1 file changed, 129 insertions(+)
>
> --- /dev/null
> +++ linux-2.6.21-git10/Documentation/volatile-usage.txt
> @@ -0,0 +1,129 @@
> +***** "volatile" considered useless and evil: Just Say NO! *****
> +
> +Do not use the C-language "volatile" keyword
> +(extracted from lkml emails from Linus)
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> +
Again, please change this sweeping introduction to explicitly state that
Linus' emails were a criticism of using 'volatile' for objects (he refers
to them as "data structures") and can be appropriate for asm constructs.
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