delete_at
delete_at(parent, r->index);
delete_at(parent, c->index);
delete_at(n, index);
delete_at(n, index);
unsigned long delete_at;
n->delete_at = jiffies + msecs_to_jiffies(NODE_CLEANUP_AFTER);
n->delete_at = jiffies + msecs_to_jiffies(NODE_CLEANUP_AFTER);
if (!node_is_up(peer) && time_after(jiffies, peer->delete_at)) {