Function create_system_task 

pub fn create_system_task<L>(
    locked: &mut Locked<L>,
    kernel: &Arc<Kernel>,
    fs: Arc<FsContext>,
) -> Result<CurrentTask, Errno>
where
    L: LockBefore<TaskRelease>,

Create a task that runs inside the kernel.

There is no underlying Zircon process to host the task. Instead, the work done by this task is performed by a thread in the original Starnix process, possible as part of a thread pool.

This function is the preferred way to create a context for doing background work inside the kernel.

Rather than calling this function directly, consider using kthreads, which provides both a system task and a threadpool on which the task can do work.