GFP_VMALLOC32     681 mm/vmalloc.c   	return __vmalloc(size, GFP_VMALLOC32, PAGE_KERNEL);
GFP_VMALLOC32     697 mm/vmalloc.c   	ret = __vmalloc(size, GFP_VMALLOC32 | __GFP_ZERO, PAGE_KERNEL);