SLAB_AREA_STRUCT_OFFSET
if ((SLAB_CHUNK_SIZE_LARGE - SLAB_AREA_STRUCT_OFFSET - kAreaAdminSize)
size_t unusableSize = ROUNDUP(SLAB_AREA_STRUCT_OFFSET + kAreaAdminSize,
#if SLAB_AREA_STRUCT_OFFSET > 0
_UnmapChunk(area->vmArea, area->BaseAddress(), SLAB_AREA_STRUCT_OFFSET,
return (addr_t)this - SLAB_AREA_STRUCT_OFFSET;
+ SLAB_AREA_STRUCT_OFFSET);