On Tue, 2007-01-09 at 09:23 +0100, [email protected] wrote:
> +
> +void agp_vkmalloc(size_t size, unsigned long **addr, u8 *vmalloc_flag)
> +{
> + void *tmp = NULL;
> +
> + *vmalloc_flag = 0;
> +
> + if (size <= 2*PAGE_SIZE) {
> + tmp = kmalloc(size, GFP_KERNEL);
> + }
> + if (tmp == NULL) {
> + tmp = vmalloc(size);
> + *vmalloc_flag = 1;
> + }
> +
> + *addr = tmp;
> +}
> +EXPORT_SYMBOL(agp_vkmalloc);
if you don't do this "fallback" thing the caller can just know it is
vmalloc due to the size... (and a 2 page kmalloc isn't going to fail on
you with GFP_KERNEL; also if you really want to deal with this failure
also tell the VM you're ok with failure (__GFP_NORETRY and such)...
but unless you do, things get a lot simpler by not doing this "fall
back" thing.
--
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