Re: VM fixes [4/4]

[Linus Torvalds]

On Fri, 24 Dec 2004, Andrea Arcangeli wrote:
>
>  /*
> + * All archs should support atomic ops with
> + * 1 byte granularity.
> + */
> +	unsigned char memdie;

This simply fundamentally isn't true, last I looked.

At least older alphas do _not_ support atomic byte accesses, and if you
want atomic accesses you need to either use the defined smp-atomic
functions (ie things like the bit set operations), or you need to use 
"int", which afaik all architectures _do_ support atomic accesses to. 

		Linus
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