public static void WorkUntilFinishedOrCancelled(CancellationToken token, params Action[] work)
{
    foreach (var workItem in work)
    {
        token.ThrowIfCancellationRequested();
        workItem();
    }
}

async Task<Bar> DoWork(Foo foo)
{
    WorkUntilFinishedOrCancelled([YourCancellationToken], DoStuff1, DoStuff2, DoStuff3, ...);
}