2214 	unsigned long maxpages;  in read_swap_header()  local
2256 	maxpages = swp_offset(pte_to_swp_entry(  in read_swap_header()
2259 	if (last_page > maxpages) {  in read_swap_header()
2261 			maxpages << (PAGE_SHIFT - 10),  in read_swap_header()
2264 	if (maxpages > last_page) {  in read_swap_header()
2265 		maxpages = last_page + 1;  in read_swap_header()
2267 		if ((unsigned int)maxpages == 0)  in read_swap_header()
2268 			maxpages = UINT_MAX;  in read_swap_header()
2270 	p->highest_bit = maxpages - 1;  in read_swap_header()
2272 	if (!maxpages)  in read_swap_header()
2275 	if (swapfilepages && maxpages > swapfilepages) {  in read_swap_header()
2284 	return maxpages;  in read_swap_header()
2291 					unsigned long maxpages,  in setup_swap_map_and_extents()  argument
2297 	unsigned long nr_clusters = DIV_ROUND_UP(maxpages, SWAPFILE_CLUSTER);  in setup_swap_map_and_extents()
2300 	nr_good_pages = maxpages - 1;	/* omit header page */  in setup_swap_map_and_extents()
2311 		if (page_nr < maxpages) {  in setup_swap_map_and_extents()
2323 	for (i = maxpages; i < round_up(maxpages, SWAPFILE_CLUSTER); i++)  in setup_swap_map_and_extents()
2333 		p->max = maxpages;  in setup_swap_map_and_extents()
2397 	unsigned long maxpages;  in SYSCALL_DEFINE2()  local
2452 	maxpages = read_swap_header(p, swap_header, inode);  in SYSCALL_DEFINE2()
2453 	if (unlikely(!maxpages)) {  in SYSCALL_DEFINE2()
2459 	swap_map = vzalloc(maxpages);  in SYSCALL_DEFINE2()
2474 		cluster_info = vzalloc(DIV_ROUND_UP(maxpages,  in SYSCALL_DEFINE2()
2492 	error = swap_cgroup_swapon(p->type, maxpages);  in SYSCALL_DEFINE2()
2497 		cluster_info, maxpages, &span);  in SYSCALL_DEFINE2()
2504 		frontswap_map = vzalloc(BITS_TO_LONGS(maxpages) * sizeof(long));  in SYSCALL_DEFINE2()