2929 	unsigned long maxpages;  in read_swap_header()  local
2959 	maxpages = max_swapfile_size();  in read_swap_header()
2965 	if (last_page > maxpages) {  in read_swap_header()
2967 			maxpages << (PAGE_SHIFT - 10),  in read_swap_header()
2970 	if (maxpages > last_page) {  in read_swap_header()
2971 		maxpages = last_page + 1;  in read_swap_header()
2973 		if ((unsigned int)maxpages == 0)  in read_swap_header()
2974 			maxpages = UINT_MAX;  in read_swap_header()
2976 	p->highest_bit = maxpages - 1;  in read_swap_header()
2978 	if (!maxpages)  in read_swap_header()
2981 	if (swapfilepages && maxpages > swapfilepages) {  in read_swap_header()
2990 	return maxpages;  in read_swap_header()
3004 					unsigned long maxpages,  in setup_swap_map_and_extents()  argument
3010 	unsigned long nr_clusters = DIV_ROUND_UP(maxpages, SWAPFILE_CLUSTER);  in setup_swap_map_and_extents()
3014 	nr_good_pages = maxpages - 1;	/* omit header page */  in setup_swap_map_and_extents()
3023 		if (page_nr < maxpages) {  in setup_swap_map_and_extents()
3035 	for (i = maxpages; i < round_up(maxpages, SWAPFILE_CLUSTER); i++)  in setup_swap_map_and_extents()
3045 		p->max = maxpages;  in setup_swap_map_and_extents()
3106 	unsigned long maxpages;  in SYSCALL_DEFINE2()  local
3165 	maxpages = read_swap_header(p, swap_header, inode);  in SYSCALL_DEFINE2()
3166 	if (unlikely(!maxpages)) {  in SYSCALL_DEFINE2()
3172 	swap_map = vzalloc(maxpages);  in SYSCALL_DEFINE2()
3194 		nr_cluster = DIV_ROUND_UP(maxpages, SWAPFILE_CLUSTER);  in SYSCALL_DEFINE2()
3221 	error = swap_cgroup_swapon(p->type, maxpages);  in SYSCALL_DEFINE2()
3226 		cluster_info, maxpages, &span);  in SYSCALL_DEFINE2()
3233 		frontswap_map = kvcalloc(BITS_TO_LONGS(maxpages),  in SYSCALL_DEFINE2()
3267 	error = init_swap_address_space(p->type, maxpages);  in SYSCALL_DEFINE2()