Re: [PATCH] cpumask 5/10 rewrite cpumask.h - single bitmap basedimplementation

[Andrew Morton]

Paul Jackson <pj@xxxxxxx> wrote:
>
> 	Major rewrite of cpumask to use a single implementation,
> 	as a struct-wrapped bitmap.
>
> ...
>
> +typedef struct { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
>

We avoided doing this because in some situations the compiler will not pass
such a cpumask_t in a register, ever.  An efficiency problem on sparc64,
apparently.
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