illumos gate

The problem is that in my environment (gcc/clang) complains about comparing signed with unsigned values and, at least in principle, sizes should be unsigned, which is what is causing this patch.

I left intr_nbits signed but I made ml_size unsigned (uint64_t as in Illumos according to opengrok). In order to avoid the warnings I used casts. It is somewhat ugly but it just works.

Pedro Giffuni wrote:

I left intr_nbits signed but I made ml_size unsigned (uint64_t as in Illumos according to opengrok). In order to avoid the warnings I used casts. It is somewhat ugly but it just works.

On second thoughts, ml_size as a simple uint_t should be enough: the uint64_t ml_size that opengrok found is likely unrelated.