126 	struct swap_extent *se;  in discard_swap()  local
132 	se = &si->first_swap_extent;  in discard_swap()
133 	start_block = (se->start_block + 1) << (PAGE_SHIFT - 9);  in discard_swap()
134 	nr_blocks = ((sector_t)se->nr_pages - 1) << (PAGE_SHIFT - 9);  in discard_swap()
143 	list_for_each_entry(se, &si->first_swap_extent.list, list) {  in discard_swap()
144 		start_block = se->start_block << (PAGE_SHIFT - 9);  in discard_swap()
145 		nr_blocks = (sector_t)se->nr_pages << (PAGE_SHIFT - 9);  in discard_swap()
164 	struct swap_extent *se = si->curr_swap_extent;  in discard_swap_cluster()  local
170 		if (se->start_page <= start_page &&  in discard_swap_cluster()
171 		    start_page < se->start_page + se->nr_pages) {  in discard_swap_cluster()
172 			pgoff_t offset = start_page - se->start_page;  in discard_swap_cluster()
173 			sector_t start_block = se->start_block + offset;  in discard_swap_cluster()
174 			sector_t nr_blocks = se->nr_pages - offset;  in discard_swap_cluster()
182 				si->curr_swap_extent = se;  in discard_swap_cluster()
191 		lh = se->list.next;  in discard_swap_cluster()
192 		se = list_entry(lh, struct swap_extent, list);  in discard_swap_cluster()
1053 			struct swap_extent *se = &sis->first_swap_extent;  in swap_type_of()  local
1055 			if (se->start_block == offset) {  in swap_type_of()
1625 	struct swap_extent *se;  in map_swap_entry()  local
1633 	se = start_se;  in map_swap_entry()
1638 		if (se->start_page <= offset &&  in map_swap_entry()
1639 				offset < (se->start_page + se->nr_pages)) {  in map_swap_entry()
1640 			return se->start_block + (offset - se->start_page);  in map_swap_entry()
1642 		lh = se->list.next;  in map_swap_entry()
1643 		se = list_entry(lh, struct swap_extent, list);  in map_swap_entry()
1644 		sis->curr_swap_extent = se;  in map_swap_entry()
1645 		BUG_ON(se == start_se);		/* It *must* be present */  in map_swap_entry()
1665 		struct swap_extent *se;  in destroy_swap_extents()  local
1667 		se = list_entry(sis->first_swap_extent.list.next,  in destroy_swap_extents()
1669 		list_del(&se->list);  in destroy_swap_extents()
1670 		kfree(se);  in destroy_swap_extents()
1692 	struct swap_extent *se;  in add_swap_extent()  local
1697 		se = &sis->first_swap_extent;  in add_swap_extent()
1698 		sis->curr_swap_extent = se;  in add_swap_extent()
1699 		se->start_page = 0;  in add_swap_extent()
1700 		se->nr_pages = nr_pages;  in add_swap_extent()
1701 		se->start_block = start_block;  in add_swap_extent()
1705 		se = list_entry(lh, struct swap_extent, list);  in add_swap_extent()
1706 		BUG_ON(se->start_page + se->nr_pages != start_page);  in add_swap_extent()
1707 		if (se->start_block + se->nr_pages == start_block) {  in add_swap_extent()
1709 			se->nr_pages += nr_pages;  in add_swap_extent()
1717 	new_se = kmalloc(sizeof(*se), GFP_KERNEL);  in add_swap_extent()