Re: format_cpumask()

[Luck, Tony]

> +	for (k = sizeof(cpumask_t)/sizeof(long) - 1; k >= 0; ++k) {
> +		int m;
> +		cpumask_t tmp;
> +
> +		cpus_shift_right(tmp, cpus, BITS_PER_LONG*k);
> +		if (BITS_PER_LONG == 32)
> +			m = sprintf(buf, "%08lx", cpus_coerce(tmp));
> +		else /* BITS_PER_LONG == 64 */
> +			m = sprintf(buf, "%16lx", cpus_coerce(tmp));
> +		len += m;
> +		buf += m;
> +	}

That makes it had to write portable shell scripts (etc.) that can
parse these values on both 32-bit and 64-bit systems?  A bitmask with
just cpu0 set looks like:

	0000000100000000

on a 32-bit machine.  And like:

	0000000000000001

on a 64-bit machine.  Heaven help the architectures (ia64, sparc, ppc)
that support both 32-bit and 64-bit applications!

-Tony Luck  

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