手工将进程睡眠

#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/kernel.h>

static wait_queue_head_t queue;
static wait_queue_t wait;

static int __init test_init(void)
{
        printk(KERN_ALERT "schedule start.\n");

        init_waitqueue_head(&queue);
        init_wait(&wait);
        prepare_to_wait(&queue, &wait, TASK_UNINTERRUPTIBLE);
        schedule();
        finish_wait(&queue, &wait);

        printk(KERN_ALERT "schedule end.\n");

        return 0;
}

static void __exit test_exit(void)
{
        printk(KERN_ALERT "test_exit running.\n");
}

MODULE_LICENSE("GPL");

module_init(test_init);
module_exit(test_exit);