134         int nb_sectors, int *num_same)  in cow_is_allocated()  argument
138     if (nb_sectors == 0) {  in cow_is_allocated()
139 	*num_same = nb_sectors;  in cow_is_allocated()
148     for (*num_same = 1; *num_same < nb_sectors; (*num_same)++) {  in cow_is_allocated()
157         int nb_sectors)  in cow_update_bitmap()  argument
162     for (i = 0; i < nb_sectors; i++) {  in cow_update_bitmap()
173                     uint8_t *buf, int nb_sectors)  in cow_read()  argument
178     while (nb_sectors > 0) {  in cow_read()
179         if (cow_is_allocated(bs, sector_num, nb_sectors, &n)) {  in cow_read()
195         nb_sectors -= n;  in cow_read()
203                      const uint8_t *buf, int nb_sectors)  in cow_write()  argument
209                       buf, nb_sectors * 512);  in cow_write()
210     if (ret != nb_sectors * 512)  in cow_write()
213     return cow_update_bitmap(bs, sector_num, nb_sectors);  in cow_write()