Type Alias FrameMeta 

pub type FrameMeta = MetaSlot;

Backwards-compatible name for MetaSlot.

Aliased Type

#[repr(C)]
pub struct FrameMeta {
    pub free_link: FreeListLink,
    pub vtable: Atomic<u64>,
    pub flags: Atomic<u32>,
    pub order: Atomic<u8>,
    _reserved0: [u8; 3],
    pub refcount: Atomic<u32>,
    pub generation: Atomic<u32>,
    pub guard: Atomic<u32>,
    pub meta_aux: Atomic<u32>,
    pub _reserved_tail: [u8; 16],
}

Fields

free_link: FreeListLink

vtable: Atomic<u64>

*const FrameMetaVtable as bits; 0 means DEFAULT_FRAME_META_VTABLE.

flags: Atomic<u32>

order: Atomic<u8>

_reserved0: [u8; 3]

Padding so refcount stays 4-byte aligned; if order widens or new fields are added, re-check META_SLOT_REFCOUNT_BYTE_OFFSET / MetaSlot::REFCOUNT_BYTE_OFFSET.

refcount: Atomic<u32>

generation: Atomic<u32>

Bumps each time the frame is successfully claimed from the buddy free list (see MetaSlot::note_new_allocation_epoch).

guard: Atomic<u32>

Kernel-owned guard bits (meta_guard); independent of frame_flags.

meta_aux: Atomic<u32>

Low 16 bits: owner CPU id hint (issue #38); upper bits reserved / NUMA placeholder.

_reserved_tail: [u8; 16]