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/* https://cirosantilli.com/linux-kernel-module-cheat#workqueues */

#include <linux/delay.h> /* usleep_range */

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/types.h> /* atomic_t */

#include <linux/workqueue.h>

static struct workqueue_struct *queue;

static atomic_t run = ATOMIC_INIT(1);

static void work_func(struct work_struct *work)

{

int i = 0;

while (atomic_read(&run)) {

pr_info("%d\n", i);

usleep_range(1000000, 1000001);

i++;

if (i == 10)

i = 0;

}

}

DECLARE_WORK(work, work_func);

static int myinit(void)

{

queue = create_workqueue("myworkqueue");

queue_work(queue, &work);

return 0;

}

static void myexit(void)

{

atomic_set(&run, 0);

destroy_workqueue(queue);

}

module_init(myinit)

module_exit(myexit)

MODULE_LICENSE("GPL");