mm/swapfile.c: use list_for_each_entry_safe in free_swap_count_continuations

		struct page *head;

		head = vmalloc_to_page(si->swap_map + offset);

		if (page_private(head)) {

			struct list_head *this, *next;

			list_for_each_safe(this, next, &head->lru) {

				struct page *page;

				page = list_entry(this, struct page, lru);

				list_del(this);

			struct page *page, *next;

			list_for_each_entry_safe(page, next, &head->lru, lru) {

				list_del(&page->lru);

				__free_page(page);

			}

		}