Labyrinth (void *)alloc_page(gfp_atomic): #define

Dr. Elara Vance stared at the line of code her student had just committed at 2 a.m.

“And the cast to (void * ?” she asked. #define labyrinth (void *)alloc_page(gfp_atomic)

Kai typed:

Elara leaned back. “Explain it like I’m a CPU.” #define labyrinth (void *)alloc_page(gfp_atomic)

Elara pulled up a second monitor. “Show me a failure.” #define labyrinth (void *)alloc_page(gfp_atomic)

“That’s the trick. The kernel returns a struct page * . But a labyrinth isn’t a structure—it’s a raw void. Just an address. A place where you don’t know the rules yet. You step inside, and you have to map it yourself.”