815db20425
Recently (r355315) the size of the struct uma_slab bitset field us_free became dynamic instead of conservative. Now, make the debug bitset size dynamic too. The debug bitset is INVARIANTS-only, so in fact we don't care too much about the space savings that results from this, but enabling minimally-sized slabs on INVARIANTS builds is still important in order to be able to test new slab layouts effectively. Reviewed by: jeff (previous version), markj (previous version) Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D22759