On Fri, 2013-08-16 at 09:37 -0600, Alex Williamson wrote:
> On Fri, 2013-08-16 at 08:27 -0700, Richard Henderson wrote:
> > On 08/16/2013 05:50 AM, Alex Williamson wrote:
> > > +    /* Size must be a power of 2 */
> > > +    if (l & (l - 1)) {
> > > +        while (l & (access_size_max - 1)) {
> > > +            access_size_max >>= 1;
> > > +        }
> > > +    }
> > > +
> > 
> > Why the loop at all?  x & -x extracts the lsb of x.
> 
> l = 5, we want 4, not 1.  Thanks,

Which is not what my patch does either :-\




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