MEM_SIZE_FOR_LARGE_BLOCK 1398 arch/x86/mm/init_64.c if (size > MEM_SIZE_FOR_LARGE_BLOCK || size < MIN_MEMORY_BLOCK_SIZE) MEM_SIZE_FOR_LARGE_BLOCK 1416 arch/x86/mm/init_64.c if (boot_mem_end < MEM_SIZE_FOR_LARGE_BLOCK) {