Module zone 

Structs

BuddyBitmap

Bitmap used by buddy coalescing logic.

Zone

Memory zone with buddy allocator free lists

ZoneSegment

One contiguous buddy-managed extent inside a zone.

Enums

Migratetype

Minimal free-block classes used by the buddy allocator.

ZoneType

Memory zone types

Constants

MAX_ORDER

Maximum buddy order (0-11 for 4KB to 8MB blocks)

PAGEBLOCK_ORDER

Pageblock order used by the compaction-friendly migratetype grouping.

PAGEBLOCK_PAGES

Number of 4 KiB pages inside one pageblock.