Function timeout_sockets

kmod/block.c:421–436

Call periodically to check for inactive ones and schedules work on them to potentially time them out

// Call periodically to check for inactive ones and schedules work on them to potentially time them out
static void timeout_sockets(struct block_ops* ops) {
    int bucket;
    struct block_socket* sock;
    u64 now = get_jiffies_64();

    rcu_read_lock();
    hash_for_each_rcu(ops->sockets, bucket, sock, hnode) {
        if (block_socket_check_timeout(sock, now, *ops->timeout_jiffies)) {
            // We can't clean up here as timing out involves removing from hash and needs
            // synchronization through rcu_synchronize
            block_socket_hold(sock);
            queue_work_or_put(sock);
        }
    }
    rcu_read_unlock();
}

// check if socket needs cleanup due to error or timeout
// returns true if socket was cleaned up or partly cleaned up