Re: [PATCH] atomic_inc_return() for i386[1/5] (Re: atomic_inc_return)

[Chris Wedgwood]

On Fri, Sep 10, 2004 at 12:26:54PM +0900, Kaigai Kohei wrote:

> +static __inline__ int atomic_add_return(int i, atomic_t *v)
> +{
> +	int __i;
> +#ifdef CONFIG_M386
> +	if(unlikely(boot_cpu_data.x86==3))
> +		goto no_xadd;
> +#endif

i didn't check what code is generated, but isn't that expensive?  i
guess most people building i386 kernels want maximum compatability so
it probably doesn't matter...
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