29 static int iomap_swapfile_add_extent(struct iomap_swapfile_info *isi)  in iomap_swapfile_add_extent()  argument
31 	struct iomap *iomap = &isi->iomap;  in iomap_swapfile_add_extent()
39 	if (unlikely(isi->nr_pages >= isi->sis->max))  in iomap_swapfile_add_extent()
41 	max_pages = isi->sis->max - isi->nr_pages;  in iomap_swapfile_add_extent()
65 	if (isi->lowest_ppage > first_ppage_reported)  in iomap_swapfile_add_extent()
66 		isi->lowest_ppage = first_ppage_reported;  in iomap_swapfile_add_extent()
67 	if (isi->highest_ppage < (next_ppage - 1))  in iomap_swapfile_add_extent()
68 		isi->highest_ppage = next_ppage - 1;  in iomap_swapfile_add_extent()
71 	error = add_swap_extent(isi->sis, isi->nr_pages, nr_pages, first_ppage);  in iomap_swapfile_add_extent()
74 	isi->nr_extents += error;  in iomap_swapfile_add_extent()
75 	isi->nr_pages += nr_pages;  in iomap_swapfile_add_extent()
88 	struct iomap_swapfile_info *isi = data;  in iomap_swapfile_activate_actor()  local
116 	if (iomap->bdev != isi->sis->bdev) {  in iomap_swapfile_activate_actor()
121 	if (isi->iomap.length == 0) {  in iomap_swapfile_activate_actor()
123 		memcpy(&isi->iomap, iomap, sizeof(isi->iomap));  in iomap_swapfile_activate_actor()
124 	} else if (isi->iomap.addr + isi->iomap.length == iomap->addr) {  in iomap_swapfile_activate_actor()
126 		isi->iomap.length += iomap->length;  in iomap_swapfile_activate_actor()
129 		error = iomap_swapfile_add_extent(isi);  in iomap_swapfile_activate_actor()
132 		memcpy(&isi->iomap, iomap, sizeof(isi->iomap));  in iomap_swapfile_activate_actor()
145 	struct iomap_swapfile_info isi = {  in iomap_swapfile_activate()  local
165 				ops, &isi, iomap_swapfile_activate_actor);  in iomap_swapfile_activate()
173 	if (isi.iomap.length) {  in iomap_swapfile_activate()
174 		ret = iomap_swapfile_add_extent(&isi);  in iomap_swapfile_activate()
184 	if (isi.nr_pages == 0) {  in iomap_swapfile_activate()
189 	*pagespan = 1 + isi.highest_ppage - isi.lowest_ppage;  in iomap_swapfile_activate()
190 	sis->max = isi.nr_pages;  in iomap_swapfile_activate()
191 	sis->pages = isi.nr_pages - 1;  in iomap_swapfile_activate()
192 	sis->highest_bit = isi.nr_pages - 1;  in iomap_swapfile_activate()
193 	return isi.nr_extents;  in iomap_swapfile_activate()