taglinefilesource code
gfporder143include/linux/mm.hextern unsigned long __get_free_pages(int priority, unsigned long gfporder, unsigned long max_addr);
gfporder86mm/kmalloc.cunsigned long gfporder;  /* number of pages in the area required */
gfporder135mm/kmalloc.c#define AREASIZE(order)    (PAGE_SIZE<<(sizes[order].gfporder))
gfporder230mm/kmalloc.csizes[order].gfporder, max_addr);
gfporder331mm/kmalloc.cfree_pages((long) page, sizes[order].gfporder);