lowmem_kbytes    7848 mm/page_alloc.c 	unsigned long lowmem_kbytes;
lowmem_kbytes    7851 mm/page_alloc.c 	lowmem_kbytes = nr_free_buffer_pages() * (PAGE_SIZE >> 10);
lowmem_kbytes    7852 mm/page_alloc.c 	new_min_free_kbytes = int_sqrt(lowmem_kbytes * 16);