On Thu, Dec 22, 2011 at 11:34:30AM +0200, Andriy Gapon wrote:
>
> The current code that updates the cbp value after a transfer looks like this:
> td.cbp += ret;
> if ((td.cbp & 0xfff) + ret > 0xfff) {
> <handle page overflow>
> because the 'ret' value is effectively added twice the check may fire too
> early
> when the overflow hasn't happened yet.Reviewed-by: Stefan Hajnoczi <stefa...@linux.vnet.ibm.com>
