Man page 9 : kthread_create_on_node

kthread_create_on_node - create a kthread.

struct task_struct * kthread_create_on_node(int (* threadfn ) (void *data), void *  data , int  node , const char  namefmt[] , ... );

threadfn
    the function to run until signal_pending(current).

data
    data ptr for threadfn.

node
    memory node number.

namefmt[]
    printf-style name for the thread.

...
    variable arguments

This helper function creates and names a kernel thread. The thread will be stopped: use wake_up_process to start it. See also kthread_run.

If thread is going to be bound on a particular cpu, give its node in node, to get NUMA affinity for kthread stack, or else give -1. When woken, the thread will run threadfn() with data as its argument. threadfn() can either call do_exit directly if it is a standalone thread for which no one will call kthread_stop, or return when Aqkthread_should_stopAq is true (which means kthread_stop has been called). The return value should be zero or a negative error number; it will be passed to kthread_stop.

Returns a task_struct or ERR_PTR(-ENOMEM).