Constant mmtk::policy::marksweepspace::malloc_ms::metadata::ACTIVE_PAGE_METADATA_SPEC

pub(crate) const ACTIVE_PAGE_METADATA_SPEC: SideMetadataSpec;

Metadata spec for the active page byte

The active page metadata is used to accurately track the total number of pages that have been reserved by malloc().

We use a byte instead of a bit to avoid synchronization costs, i.e. to avoid the case where two threads try to update different bits in the same byte at the same time