The kernel navigates the labyrinth of its private memory structures and immediately pulls a page from a highly protected, pre-allocated emergency reserve.
alloc_page() returns a struct page * . To access the memory in the kernel, you need kmap() (or page_address() for low memory). In atomic context, kmap_atomic() is available but has restrictions (cannot sleep, limited nesting). Extra quality means documenting the mapping strategy. define labyrinth void allocpagegfpatomic extra quality
An empty space or a state of non-existence. In games like Beyond Good and Evil or Wraith: The Oblivion , "the Void" represents a hazardous, chaotic territory or the end of existence. 2. alloc_page_gfp_atomic The kernel navigates the labyrinth of its private