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KTHREAD_CREATE_ON_NO(9) Driver Basics KTHREAD_CREATE_ON_NO(9)

NAME

kthread_create_on_node - create a kthread.

SYNOPSIS

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

ARGUMENTS

threadfn

the function to run until signal_pending(current).

data

data ptr for threadfn.

node

memory node number.

namefmt[]

printf-style format string for the thread.

...

variable arguments

DESCRIPTION

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, kthread_create_on_cpu.

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 noone will call kthread_stop, or return when ´kthread_should_stop´ 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).

COPYRIGHT

May 2024 Kernel Hackers Manual 2.6.