1edf405add
Reduce memory footprint by:
- Reordering struct fields to minimize padding.
- Using exact-sized atomic types instead of *_least/*_fast variants
- Downsizing integer fields where possible
Affected structs:
- dns_name_t
- dns_slabheader_t
- dns_rdata_t
- qpcnode_t
- qpznode_t
(cherry picked from commit 32c7060bd2)