2173 	unsigned long maxpages;  in read_swap_header()  local
2215 	maxpages = swp_offset(pte_to_swp_entry(  in read_swap_header()
2218 	if (last_page > maxpages) {  in read_swap_header()
2220 			maxpages << (PAGE_SHIFT - 10),  in read_swap_header()
2223 	if (maxpages > last_page) {  in read_swap_header()
2224 		maxpages = last_page + 1;  in read_swap_header()
2226 		if ((unsigned int)maxpages == 0)  in read_swap_header()
2227 			maxpages = UINT_MAX;  in read_swap_header()
2229 	p->highest_bit = maxpages - 1;  in read_swap_header()
2231 	if (!maxpages)  in read_swap_header()
2234 	if (swapfilepages && maxpages > swapfilepages) {  in read_swap_header()
2243 	return maxpages;  in read_swap_header()
2250 					unsigned long maxpages,  in setup_swap_map_and_extents()  argument
2256 	unsigned long nr_clusters = DIV_ROUND_UP(maxpages, SWAPFILE_CLUSTER);  in setup_swap_map_and_extents()
2259 	nr_good_pages = maxpages - 1;	/* omit header page */  in setup_swap_map_and_extents()
2270 		if (page_nr < maxpages) {  in setup_swap_map_and_extents()
2282 	for (i = maxpages; i < round_up(maxpages, SWAPFILE_CLUSTER); i++)  in setup_swap_map_and_extents()
2292 		p->max = maxpages;  in setup_swap_map_and_extents()
2357 	unsigned long maxpages;  in SYSCALL_DEFINE2()  local
2423 	maxpages = read_swap_header(p, swap_header, inode);  in SYSCALL_DEFINE2()
2424 	if (unlikely(!maxpages)) {  in SYSCALL_DEFINE2()
2430 	swap_map = vzalloc(maxpages);  in SYSCALL_DEFINE2()
2443 		cluster_info = vzalloc(DIV_ROUND_UP(maxpages,  in SYSCALL_DEFINE2()
2461 	error = swap_cgroup_swapon(p->type, maxpages);  in SYSCALL_DEFINE2()
2466 		cluster_info, maxpages, &span);  in SYSCALL_DEFINE2()
2473 		frontswap_map = vzalloc(BITS_TO_LONGS(maxpages) * sizeof(long));  in SYSCALL_DEFINE2()