IsPowerOf2 is inefficient

[Myria]

IsPowerOf2 in the kernel is badly inefficient.  It should be this:

__inline BOOLEAN IsPowerOf2(IN ULONG Number)
{
    if (Number == 0)
        return FALSE;
    return (Number & (Number - 1)) == 0;
}

Not that this function is called frequently, shrug.

Melissa

[KJKHyperion]

Myria wrote:
> IsPowerOf2 in the kernel is badly inefficient

yes, I am aware of this. I wasn't at the time I wrote it. Feel free to 
submit a patch