ci_tail 408 mm/swapfile.c struct swap_cluster_info *ci_tail; ci_tail 415 mm/swapfile.c ci_tail = ci + tail; ci_tail 416 mm/swapfile.c spin_lock_nested(&ci_tail->lock, SINGLE_DEPTH_NESTING); ci_tail 417 mm/swapfile.c cluster_set_next(ci_tail, idx); ci_tail 418 mm/swapfile.c spin_unlock(&ci_tail->lock);