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    SubjectRe: SLUB: Return ZERO_SIZE_PTR for kmalloc(0)
    > On Fri, 1 Jun 2007 18:37:46 -0700 (PDT) Christoph Lameter <clameter@sgi.com> wrote:
    >
    > +#define ZERO_SIZE_PTR ((void *)16)

    Jeremy's point was a good one. The kernel _does_ use address-comparison
    to determine object-inequality in an unknown but non-zero number of places.

    It is of course unlikely that this will occur in conjunction with zero-sized
    objects, but who knows?
    -
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